Develop Reference

Values not passed between Intent Service and Class

Explanation:
I made this intent service in a new class (connectionchecker.java) which is used to check for internet connection.
Now in my main class (First.java), the values are not recieved because the if() is never executed.
My app doesn't crash, the problem is the TextView is stuck on "CONNECTION:" instead of saying "CONNECTION:You are not connected to the internet." or ""CONNECTION:You are not connected to the internet.".
Code:
First.java
package com.lofty.lofti;
import com.lofty.lofti.util.SystemUiHider;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;
import android.view.KeyEvent;
import android.view.View.OnKeyListener;
import android.inputmethodservice.KeyboardView;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.view.MotionEvent;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.content.BroadcastReceiver;
/**
* An example full-screen activity that shows and hides the system UI (i.e.
* status bar and navigation/system bar) with user interaction.
*
* #see SystemUiHider
*/
public class First extends Activity {
/**
* Whether or not the system UI should be auto-hidden after
* {#link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
*/
private static final boolean AUTO_HIDE = true;
/**
* If {#link #AUTO_HIDE} is set, the number of milliseconds to wait after
* user interaction before hiding the system UI.
*/
private static final int AUTO_HIDE_DELAY_MILLIS = 3000;
/**
* If set, will toggle the system UI visibility upon interaction. Otherwise,
* will show the system UI visibility upon interaction.
*/
private static final boolean TOGGLE_ON_CLICK = true;
/**
* The flags to pass to {#link SystemUiHider#getInstance}.
*/
private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;
/**
* The instance of the {#link SystemUiHider} for this activity.
*/
private SystemUiHider mSystemUiHider;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getActionBar().hide(); // HIDE ACTION BAR.
setContentView(R.layout.activity_first);
EditText enter = (EditText) findViewById(R.id.searchbox);
enter.setOnKeyListener(new OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_ENTER) {
EditText searchbox = (EditText) findViewById(R.id.searchbox);
String search = searchbox.getText().toString();
Intent open = new Intent(Intent.ACTION_WEB_SEARCH);
open.putExtra(SearchManager.QUERY, search);
startActivity(open);
return true;
}
else
{
return false;
}
}
});
}
public class Connection extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent) {
Integer connectionn = intent.getIntExtra("connection",0);
TextView connectiontext = (TextView) findViewById(R.id.connectiontext);
if(connectionn==1)
{
connectiontext.setText("CONNECTION:You are not connected to the internet.");
}
if(connectionn==0)
{
connectiontext.setText("CONNECTION:You are not connected to the internet.");
}
}
}
public void exit(View view)
{
finish();
System.exit(0);
}
public void usernameclick (View view)
{
EditText searchbox = (EditText) findViewById(R.id.searchbox);
String search = searchbox.getText().toString();
Intent open = new Intent(Intent.ACTION_WEB_SEARCH);
open.putExtra(SearchManager.QUERY, search);
startActivity(open);
}
}
connectionchecker.java
package com.lofty.lofti;
import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.widget.EditText;
public class connectionchecker extends IntentService
{
public static final int connection =0;
public connectionchecker() {
super("connectionchecker");
}
#Override
protected void onHandleIntent(Intent intent) {
ConnectivityManager connectivityManager = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
if(connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState() == NetworkInfo.State.CONNECTED || connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() == NetworkInfo.State.CONNECTED|| connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET).getState()== NetworkInfo.State.CONNECTED)
{
Intent data = new Intent(this, First.class);
data.putExtra("connection",1);
sendBroadcast(data);
}
else
{
Intent data = new Intent(this, First.class);
data.putExtra("connection", 0 );
sendBroadcast(data);
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.lofty.lofti" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".First"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="#string/app_name"
android:theme="#style/FullscreenTheme" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".connectionchecker"/>
<receiver android:name=".First$Connection"/>
</application>
</manifest>
Thank you and have a good day.
Logcat:
10-23 16:01:25.765 2175-2175/com.lofty.lofti E/Zygote﹕ MountEmulatedStorage()
10-23 16:01:25.765 2175-2175/com.lofty.lofti E/Zygote﹕ v2
10-23 16:01:25.775 2175-2175/com.lofty.lofti I/SELinux﹕ Function: selinux_compare_spd_ram, SPD-policy is existed. and_ver=SEPF_GT-I9505_5.0.1 ver=27
10-23 16:01:25.775 2175-2175/com.lofty.lofti I/SELinux﹕ Function: selinux_compare_spd_ram , priority [2] , priority version is VE=SEPF_GT-I9505_5.0.1-1_0032
10-23 16:01:25.775 2175-2175/com.lofty.lofti E/SELinux﹕ [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
10-23 16:01:25.775 2175-2175/com.lofty.lofti I/art﹕ Late-enabling -Xcheck:jni
10-23 16:01:25.955 2175-2175/com.lofty.lofti D/ResourcesManager﹕ creating new AssetManager and set to /data/app/com.lofty.lofti-2/base.apk
10-23 16:01:26.185 2175-2175/com.lofty.lofti D/AndroidRuntime﹕ Shutting down VM
10-23 16:01:26.195 2175-2175/com.lofty.lofti E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.lofty.lofti, PID: 2175
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lofty.lofti/com.lofty.lofti.First}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:309)
at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:278)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:252)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
at com.lofty.lofti.First.onCreate(First.java:68)
at android.app.Activity.performCreate(Activity.java:6289)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
            at android.app.ActivityThread.access$900(ActivityThread.java:177)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5942)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
10-23 16:06:26.538 2175-2175/? I/Process﹕ Sending signal. PID: 2175 SIG: 9

I just update your code, by following the tuto from Lars http://www.vogella.com/tutorials/AndroidBroadcastReceiver/article.html
You have to register the broadcast receiver before it can receive anything.
Have a look at this question. https://stackoverflow.com/a/4806091/2733216
IntentFilter filter = new IntentFilter(Connection.ACTION_RESP);
registerReceiver(mConnection, filter);
Your service wasn't started (at least in the code you provided)
in your Activity 'onCreate'
// Start your Service
Intent msgIntent = new Intent(this, ConnectionChecker.class);
startService(msgIntent);
You didn't instantiate your BroadCastReceiver
// Instanciate your BCR
mConnection = new Connection();
Define a message :
public static final String ACTION_RESP = "intent.action.MESSAGE_PROCESSED";
Define the message to the Intent
data.setAction(MainActivity.Connection.ACTION_RESP);
Use Default Intent Constructor for the one that are sent from the Service
Intent data = new Intent();
Then finally, the whole code :
Activity
public class MainActivity extends AppCompatActivity {
private Connection mConnection;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
EditText enter = (EditText) findViewById(R.id.searchbox);
enter.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_ENTER) {
EditText searchbox = (EditText) findViewById(R.id.searchbox);
String search = searchbox.getText().toString();
Intent open = new Intent(Intent.ACTION_WEB_SEARCH);
open.putExtra(SearchManager.QUERY, search);
startActivity(open);
return true;
} else {
return false;
}
}
});
// Start your Service
Intent msgIntent = new Intent(this, ConnectionChecker.class);
startService(msgIntent);
// Instanciate BCR
mConnection = new Connection();
// Register BCR
IntentFilter filter = new IntentFilter(Connection.ACTION_RESP);
registerReceiver(mConnection, filter);
}
public class Connection extends BroadcastReceiver {
public static final String ACTION_RESP = "intent.action.MESSAGE_PROCESSED";
#Override
public void onReceive(Context context, Intent intent) {
Integer connectionn = intent.getIntExtra("connection", 0);
TextView connectiontext = (TextView) findViewById(R.id.connectiontext);
if (connectionn == 1)
connectiontext.setText("CONNECTION:You are not connected to the internet.");
else
connectiontext.setText("CONNECTION:You are not connected to the internet.");
}
}
public void exit(View view) {
finish();
System.exit(0);
}
public void usernameclick(View view) {
EditText searchbox = (EditText) findViewById(R.id.searchbox);
String search = searchbox.getText().toString();
Intent open = new Intent(Intent.ACTION_WEB_SEARCH);
open.putExtra(SearchManager.QUERY, search);
startActivity(open);
}
}
Service
public class ConnectionChecker extends IntentService
{
public static final int connection =0;
public ConnectionChecker() {
super("connectionchecker");
}
#Override
protected void onHandleIntent(Intent intent) {
ConnectivityManager connectivityManager = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
if(connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState() == NetworkInfo.State.CONNECTED || connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() == NetworkInfo.State.CONNECTED|| connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET).getState()== NetworkInfo.State.CONNECTED)
{
Intent data = new Intent();
data.setAction(MainActivity.Connection.ACTION_RESP);
data.putExtra("connection", 1);
sendBroadcast(data);
}
else
{
Intent data = new Intent();
data.setAction(MainActivity.Connection.ACTION_RESP);
data.putExtra("connection", 0 );
sendBroadcast(data);
}
}
}

the values are not received because the if() is never executed
Pass an action for the Intent, instead of using like this:
Intent data = new Intent(this, First.class);
But, you should:
Intent data = new Intent("ACTION_NAME");
And make sure that you registered that action to manifest:
<receiver android:name=".First$Connection">
<intent-filter>
<action android:name="ACTION_NAME" />
</intent-filter>
</receiver>
the problem is the TextView is stuck
Make an instance variable for connectiontext:
public class First extends Activity {
...
private TextView connectiontext;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first);
getActionBar().hide(); // HIDE ACTION BAR.
connectiontext = (TextView) findViewById(R.id.connectiontext);
...
}
...
}

app crash everytime it receive a push notification [duplicate]

This question already has answers here:
Broadcast Receiver as inner class in Android
(6 answers)
Closed 7 years ago.
I'm trying to do a simple web view app based with push notifications. My app registers in background and do all the stuff, but when I send a push and my phone is supposed to show the push notification the app crashes. I've tried to debug and set a breakpoint in the onReceive() method, and I've also set breakpoints everywere but the app just crashes and don't stop anywere before doing it. I'm new in android studio and I don't understand at all the error messages so please if somebody can help me to find the error it would be greatly appreciated.
logCat:
05-04 14:41:46.349 30089-30089/com.example.alfredo.guiasandroid E/dalvikvm﹕ Could not find class 'android.app.Notification$Builder', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
05-04 14:41:46.349 30089-30089/com.example.alfredo.guiasandroid E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
05-04 14:43:34.879 10207-10207/? E/Launcher﹕ setWindowOpaque()
05-04 14:43:34.909 10207-10207/? E/Launcher﹕ MTP-LAUNCHER: media scanning not yet finished.
05-04 14:43:34.959 10207-10207/? E/Launcher﹕ setWindowOpaque()
05-04 14:43:44.879 30089-30089/com.example.alfredo.guiasandroid E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate receiver com.example.alfredo.guiasandroid.MainActivity$GcmBroadcastReceiver: java.lang.InstantiationException: com.example.alfredo.guiasandroid.MainActivity$GcmBroadcastReceiver
at android.app.ActivityThread.handleReceiver(ActivityThread.java:1777)
at android.app.ActivityThread.access$2400(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.InstantiationException: com.example.alfredo.guiasandroid.MainActivity$GcmBroadcastReceiver
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1409)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:1768)
            at android.app.ActivityThread.access$2400(ActivityThread.java:117)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:130)
            at android.app.ActivityThread.main(ActivityThread.java:3687)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:507)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
            at dalvik.system.NativeStart.main(Native Method)
05-04 14:43:44.979 10104-10118/? E/﹕ Dumpstate > /data/log/dumpstate_app_error
05-04 14:43:50.839 10207-10207/? E/Launcher﹕ setWindowOpaque()
mainfest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.alfredo.guiasandroid" android:versionCode="1" android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="22"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<permission android:name="com.example.alfredo.guiasandroid.permission.C2D_MESSAGE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.alfredo.guiasandroid.permission.C2D_MESSAGE"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<application
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name">
<!-- Required for applications which use Google Play Services. -->
<!-- <meta-data android:name="com.google.android.gms.version" android:value="#integer/google_play_services_version" /> -->
<meta-data android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:configChanges="orientation|keyboardHidden|screenSize"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".MainActivity$GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<!--android:name=".MainActivity$GcmBroadcastReceiver" -->
<intent-filter>
<!--
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="com.example.alfredo.webapp" />
-->
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.example.alfredo.guiasandroid" />
</intent-filter>
</receiver>
<!--
<service android:name=".MainActivity$GcmIntentService" />
-->
<service android:name=".MainActivity$GcmIntentService" />
</application>
</manifest>
<!--
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.alfredo.guiasandroid" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
-->
build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "com.example.alfredo.guiasandroid"
minSdkVersion 10
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.1.1'
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.0.0'
compile 'com.google.android.gms:play-services:7.0.0'
}
mainActivity.java:
package com.example.alfredo.guiasandroid;
import android.os.Bundle;
import android.view.MenuItem;
import android.support.v4.app.NotificationCompat;
import android.app.Activity;
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.AsyncTask;
import android.os.SystemClock;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
import android.view.KeyEvent;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.atomic.AtomicInteger;
public class MainActivity extends Activity {
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
String SENDER_ID = "example_Number";
/**
* Tag used on log messages.
*/
static final String TAG = "GCMDemo";
private WebView myWebView = null;
TextView mDisplay;
GoogleCloudMessaging gcm;
AtomicInteger msgId = new AtomicInteger();
SharedPreferences prefs;
Context context;
String regid;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "hola coño");
setContentView(R.layout.activity_main);
//initialize variables
context = getApplicationContext();
gcm = GoogleCloudMessaging.getInstance(this);
prefs = getPreferences(0);
mDisplay = new TextView(getApplicationContext());
// web view
this.myWebView = (WebView) findViewById(R.id.activity_main_webview);
myWebView.setWebViewClient(new WebViewClient());
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("http://mongini.net/guiasdelsur");
//remove shared prefs
/*
SharedPreferences prefs = getGCMPreferences(context);
SharedPreferences.Editor edit = prefs.edit();
edit.clear();
edit.commit();
*/
/*
SharedPreferences clear_cache = getSharedPreferences("registration_id", MODE_PRIVATE);
SharedPreferences.Editor edit = clear_cache.edit();
edit.clear();
edit.commit();
*/
// Check device for Play Services APK. If check succeeds, proceed with
// GCM registration.
if (checkPlayServices()) {
gcm = GoogleCloudMessaging.getInstance(this);
regid = getRegistrationId(context);
if (regid.isEmpty()) {
registerInBackground();
Log.i(TAG,"ok");
}
} else {
Log.i(TAG, "No valid Google Play Services APK found.");
}
}
// You need to do the Play Services APK check here too.
#Override
protected void onResume() {
super.onResume();
checkPlayServices();
}
/**
* Check the device to make sure it has the Google Play Services APK. If
* it doesn't, display a dialog that allows users to download the APK from
* the Google Play Store or enable it in the device's system settings.
*/
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.d(TAG, "This device is not supported.");
finish();
}
return false;
}
return true;
}
/**
* Gets the current registration ID for application on GCM service.
* <p>
* If result is empty, the app needs to register.
*
* #return registration ID, or empty string if there is no existing
* registration ID.
*/
private String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
if (registrationId.isEmpty()) {
Log.i(TAG, "Registration not found.");
return "";
}
// Check if app was updated; if so, it must clear the registration ID
// since the existing registration ID is not guaranteed to work with
// the new app version.
int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int currentVersion = getAppVersion(context);
if (registeredVersion != currentVersion) {
Log.i(TAG, "App version changed.");
return "";
}
return registrationId;
}
/**
* #return Application's {#code SharedPreferences}.
*/
private SharedPreferences getGCMPreferences(Context context) {
// This sample app persists the registration ID in shared preferences, but
// how you store the registration ID in your app is up to you.
return getSharedPreferences(MainActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
/**
* #return Application's version code from the {#code PackageManager}.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (PackageManager.NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
/**
* Registers the application with GCM servers asynchronously.
* <p>
* Stores the registration ID and app versionCode in the application's
* shared preferences. com.example.alfredo.webapp.MainActivity
*/
private void registerInBackground() {
new AsyncTask<Void,Void,String>() {
#Override
protected String doInBackground(Void... params) {
String msg = "";
try {
regid = gcm.register(SENDER_ID);
msg = "Device registered, registration id=" + regid;
// You should send the registration ID to your server over HTTP,
// so it can use GCM/HTTP or CCS to send messages to your app.
sendRegistrationIdToBackend();
// Save the regid for future use - no need to register again.
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regid);
editor.commit();
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
}
return msg;
}
// Once registration is done, display the registration status
// string in the Activity's UI.
#Override
protected void onPostExecute(String msg) {
mDisplay.append(msg + "\n");
}
}.execute();
}
private String readStream(InputStream is) {
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
int i = is.read();
while(i != -1) {
bo.write(i);
i = is.read();
}
return bo.toString();
} catch (IOException e) {
return "";
}
}
/**
* Sends the registration ID to your server over HTTP, so it can use GCM/HTTP
* or CCS to send messages to your app. Not needed for this demo since the
* device sends upstream messages to a server that echoes back the message
* using the 'from' address in the message.
*/
private void sendRegistrationIdToBackend() {
// Your implementation here.
HttpURLConnection urlConnection = null;
try {
URL url = new URL("http://www.example.com/example.php?host=localhost&dbname=db_name&user=user&pass=pass&idPush="+regid);
urlConnection = (HttpURLConnection) url.openConnection();
/** Connecting to url */
urlConnection.connect();
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
readStream(in);
}catch(Exception e){
Log.d("Exception url ", e.toString());
}finally {
urlConnection.disconnect();
}
}
/**
* Stores the registration ID and app versionCode in the application's
* {#code SharedPreferences}.
*
* #param context application's context.
* #param regId registration ID
*/
//aqui peta
private void storeRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGCMPreferences(context);
int appVersion = getAppVersion(context);
Log.i(TAG, "Saving regId on app version " + appVersion);
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
}
public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// Explicitly specify that GcmIntentService will handle the intent.
ComponentName comp = new ComponentName(context.getPackageName(),
GcmIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
}
}
public class GcmIntentService extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
public GcmIntentService() {
super("GcmIntentService");
}
#Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
// The getMessageType() intent parameter must be the intent you received
// in your BroadcastReceiver.
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) { // has effect of unparcelling Bundle
/*
* Filter messages based on message type. Since it is likely that GCM
* will be extended in the future with new message types, just ignore
* any message types you're not interested in, or that you don't
* recognize.
*/
if (GoogleCloudMessaging.
MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_DELETED.equals(messageType)) {
sendNotification("Deleted messages on server: " +
extras.toString());
// If it's a regular GCM message, do some work.
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_MESSAGE.equals(messageType)) {
// This loop represents the service doing some work.
for (int i=0; i<5; i++) {
Log.i(TAG, "Working... " + (i+1)
+ "/5 # " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work # " + SystemClock.elapsedRealtime());
// Post notification of received message.
sendNotification("Received: " + extras.toString());
Log.i(TAG, "Received: " + extras.toString());
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
//.setSmallIcon(R.drawable.ic_stat_gcm)
.setContentTitle("GCM Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
//back device button
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && this.myWebView.canGoBack()) {
this.myWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

AFAIK the inner-class BroadcastReceivers only work if they are static.
In fact $ marks a static inner-class.
See https://stackoverflow.com/a/4392499/603270

App crashes on starting new activity

I am developing an app with slide fragments. Everything works fine, app starts without problems. Problem happens in View.onClickListener. Here is a code of my single fragment section:
public static class ReceiveSectionFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.receive, container, false);
rootView.findViewById(R.id.bt_server_start)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(getActivity(), Receive.class);
startActivity(intent);
}
});
return rootView;
}
}
Sliding to target layout - R.layout.receive works well. So no problem here. On R.id.bt_server_start button click class below is started:
package com.receive.bluereceive;
import java.io.DataInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.UUID;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothServerSocket;
import android.bluetooth.BluetoothSocket;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.CountDownTimer;
import android.os.Vibrator;
import android.util.Log;
import android.widget.Button;
import android.widget.TextView;
public class Receive extends Activity {
/**
* Default Serial-Port UUID
*/
private String myUUID = "00001101-0000-1000-8000-00805F9B34FB";
/**
* Default Bluetooth adapter on the device.
*/
private final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
/**
* Magic number used in the Bluetooth enabling request.
*/
public final int REQUEST_ENABLE_BT = 2;
/**
* The Server thread.
*/
private AcceptThread DeviceServer;
private NotificationCenter mNotificationCenter;
public final static String EXTRA_MESSAGE = "com.receive.intent.MESSAGE";
public final int BT_ENABLE_TIME = 35;
public final int BT_TIME_BTTIME = 1000 * BT_ENABLE_TIME;
public CountDownTimer BTCountDown;
public CountDownTimer MoveHistoryCountDown;
#Override
protected void onStart() {
super.onStart();
mNotificationCenter = new NotificationCenter();
/*
* Code responsible for calling method NotificationCenter() to print the incoming text to TextView field
*/
registerReceiver(mNotificationCenter, new IntentFilter(EXTRA_MESSAGE));
/*
* Start server on device
*/
ServerThread();
((Button) findViewById(R.id.bt_server_start)).setEnabled(false);
((Button) findViewById(R.id.bt_server_stop)).setEnabled(true);
}
public void ServerThread() {
DeviceServer = new AcceptThread();
DeviceServer.start();
}
private class AcceptThread extends Thread {
/*
* That TAG will appear in the log in Eclipse
*/
private final String ACC_TAG = AcceptThread.class.getName();
/*
* Bluetooth server socket
*/
private final BluetoothServerSocket mServerSocket;
public AcceptThread() {
/*
* Use a temporary object that is later assigned to mServerSocket, because mServerSocket is final
*/
BluetoothServerSocket tmp = null;
try {
/*
* MY_UUID is the app's UUID string, also used by the client code
*/
tmp = mBluetoothAdapter.listenUsingRfcommWithServiceRecord(ACC_TAG, UUID.fromString(myUUID));
} catch (IOException e) { }
mServerSocket = tmp;
}
public void run() {
BluetoothSocket socket = null;
/*
* Keep listening until exception occurs or a socket is returned
*/
while (true) {
try {
Log.i(ACC_TAG,"Listening for a connection nearby...");
socket = mServerSocket.accept();
Log.i(ACC_TAG, "Connected to " + socket.getRemoteDevice().getName());
} catch (IOException e) {
break;
}
/*
* If connection was accepted then proceed with code below
* If Bluetooth socket does not equal null proceed with string reading as know script knows that device is connected
* And if it is first ServerThread start,
*/
if (socket != null) {
try {
String message;
DataInputStream incoming = new DataInputStream(socket.getInputStream());
message = incoming.readUTF();
Intent actual = new Intent(EXTRA_MESSAGE);
actual.putExtra("Message", String.format("%s",message));
getBaseContext().sendBroadcast(actual);
} catch (IOException e) {
Log.e(ACC_TAG, "Error obtaining InputStream from socket");
e.printStackTrace();
}
try {
mServerSocket.close();
} catch (IOException e) { }
break;
}
}
}
/*
* Will cancel the listening socket, and cause the thread to finish
*/
public void cancel() {
try {
mServerSocket.close();
} catch (IOException e) { }
}
}
private Vibrator getVibrator() {
return (Vibrator) getSystemService(VIBRATOR_SERVICE);
}
/*
* NOTIFICATION CLASS, PRINTS THE RECEIVED MESSAGE
*/
public class NotificationCenter extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(EXTRA_MESSAGE)) {
int counter = 0;
ArrayList<String> historiaAL = new ArrayList<String>();
historiaAL.add(intent.getExtras().getString("Message"));
TextView actual = (TextView)findViewById(R.id.received_string);
actual.setText(historiaAL.get(counter));
TextView history = (TextView)findViewById(R.id.history_string);
String[] historiaA = historiaAL.toArray(new String[historiaAL.size()]);
for(int i = 0; i < historiaAL.size(); i++)
{
history.append(historiaA[i]);
history.append(" \n ");
}
getVibrator().vibrate(500);
MoveHistoryCountDown = new HistoryMove(5000,5);
MoveHistoryCountDown.start();
counter++;
}
}
}
public class HistoryMove extends CountDownTimer {
public HistoryMove (long startTime, long interval) {
super(startTime, interval);
}
#Override
public void onFinish() {
TextView recent = (TextView)findViewById(R.id.received_string);
recent.setText(" ");
}
#Override
public void onTick(long millisUntilFinished) {
}
}
}
Everything is included in Manifest.xml. What I get from LogCat is this:
12-18 00:36:14.136: E/AndroidRuntime(29672): FATAL EXCEPTION: main
12-18 00:36:14.136: E/AndroidRuntime(29672): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.receive.bluereceive/com.receive.bluereceive.Receive}: java.lang.NullPointerException
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2308)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2358)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread.access$600(ActivityThread.java:153)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.os.Handler.dispatchMessage(Handler.java:99)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.os.Looper.loop(Looper.java:137)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread.main(ActivityThread.java:5227)
12-18 00:36:14.136: E/AndroidRuntime(29672): at java.lang.reflect.Method.invokeNative(Native Method)
12-18 00:36:14.136: E/AndroidRuntime(29672): at java.lang.reflect.Method.invoke(Method.java:511)
12-18 00:36:14.136: E/AndroidRuntime(29672): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
12-18 00:36:14.136: E/AndroidRuntime(29672): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
12-18 00:36:14.136: E/AndroidRuntime(29672): at dalvik.system.NativeStart.main(Native Method)
12-18 00:36:14.136: E/AndroidRuntime(29672): Caused by: java.lang.NullPointerException
12-18 00:36:14.136: E/AndroidRuntime(29672): at com.receive.bluereceive.Receive.onStart(Receive.java:68)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1164)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.Activity.performStart(Activity.java:5114)
12-18 00:36:14.136: E/AndroidRuntime(29672): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2271)
12-18 00:36:14.136: E/AndroidRuntime(29672): ... 11 more
Probably this is some rookie mistake but still, it has been an hour and I still can not crack that out.
Please no downgrade reputation, I really can not have it working even tho it might seems trivial.
EDIT: Full main code - http://pastebin.com/e4dyW8Th

I don't see setContentView called anywhere in your activity which would mean that findViewById returns null.
Add onCreate method to your activity and call setContentView to set your layout.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_activity);
}

dalvikm threadid=11: thread exiting with uncaught exception

I am very new to android app development. i created an app combining GCM and Webview. Actually I copied the codes and altered for my needs. App is working fine in 2.3 Gb. In 4 & above, App is stopping unexpectedly. Only for the first time. Very First time it happens. Next time onwards its working fine.
Apps activity flow is like this activity1->activity2->activity3.
Activty2(MainActivity) will be skipped when launching for the 2nd time onwards.
Here is the Error From logcat
10-14 21:54:01.623: V/GCMBaseIntentService(28919): Releasing wakelock
10-14 21:54:01.623: W/dalvikvm(28919): threadid=11: thread exiting with uncaught exception (group=0x41fde2a0)
10-14 21:54:01.633: E/AndroidRuntime(28919): FATAL EXCEPTION: IntentService[GCMIntentService-xxxxxxxx-1]
10-14 21:54:01.633: E/AndroidRuntime(28919): java.lang.NullPointerException: println needs a message
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.util.Log.println_native(Native Method)
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.util.Log.d(Log.java:155)
10-14 21:54:01.633: E/AndroidRuntime(28919): at com.wCityDrugs.GCMIntentService.onRegistered(GCMIntentService.java:29)
10-14 21:54:01.633: E/AndroidRuntime(28919): at com.google.android.gcm.GCMBaseIntentService.handleRegistration(GCMBaseIntentService.java:296)
10-14 21:54:01.633: E/AndroidRuntime(28919): at com.google.android.gcm.GCMBaseIntentService.onHandleIntent(GCMBaseIntentService.java:197)
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.os.Handler.dispatchMessage(Handler.java:99)
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.os.Looper.loop(Looper.java:137)
10-14 21:54:01.633: E/AndroidRuntime(28919): at android.os.HandlerThread.run(HandlerThread.java:60)
10-14 21:54:10.678: V/GCMRegistrar(28919): Unregistering receiver
10-14 21:54:10.683: E/UnRegister Receiver Error(28919): > Receiver not registered: com.google.android.gcm.GCMBroadcastReceiver#42e88d70
Here is GCMIntentService.java
package com.wCityDrugs;
import static com.wCityDrugs.CommonUtilities.SENDER_ID;
import static com.wCityDrugs.CommonUtilities.displayMessage;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.google.android.gcm.GCMBaseIntentService;
public class GCMIntentService extends GCMBaseIntentService {
private static final String TAG = "GCMIntentService";
public GCMIntentService() {
super(SENDER_ID);
}
/**
* Method called on device registered
**/
#Override
protected void onRegistered(Context context, String registrationId) {
Log.i(TAG, "Device registered: regId = " + registrationId);
displayMessage(context, "Your device registred with GCM");
Log.d("NAME", MainActivity.name);
ServerUtilities.register(context, MainActivity.name, MainActivity.email, registrationId);
}
/**
* Method called on device un registred
* */
#Override
protected void onUnregistered(Context context, String registrationId) {
Log.i(TAG, "Device unregistered");
displayMessage(context, getString(R.string.gcm_unregistered));
ServerUtilities.unregister(context, registrationId);
}
/**
* Method called on Receiving a new message
* */
#Override
protected void onMessage(Context context, Intent intent) {
Log.i(TAG, "Received message");
String message = intent.getExtras().getString("price");
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
/**
* Method called on receiving a deleted message
* */
#Override
protected void onDeletedMessages(Context context, int total) {
Log.i(TAG, "Received deleted messages notification");
String message = getString(R.string.gcm_deleted, total);
displayMessage(context, message);
// notifies user
generateNotification(context, message);
}
/**
* Method called on Error
* */
#Override
public void onError(Context context, String errorId) {
Log.i(TAG, "Received error: " + errorId);
displayMessage(context, getString(R.string.gcm_error, errorId));
}
#Override
protected boolean onRecoverableError(Context context, String errorId) {
// log message
Log.i(TAG, "Received recoverable error: " + errorId);
displayMessage(context, getString(R.string.gcm_recoverable_error,
errorId));
return super.onRecoverableError(context, errorId);
}
/**
* Issues a notification to inform the user that server has sent a message.
*/
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, MainActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
//notification.sound = Uri.parse("android.resource://" + context.getPackageName() + "your_sound_file_name.mp3");
// Vibrate if vibrate is enabled
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
}
}
And Here is my MainActivity.java
package com.wCityDrugs;
import static com.wCityDrugs.CommonUtilities.DISPLAY_MESSAGE_ACTION;
import static com.wCityDrugs.CommonUtilities.EXTRA_MESSAGE;
import static com.wCityDrugs.CommonUtilities.SENDER_ID;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gcm.GCMRegistrar;
public class MainActivity extends Activity {
// label to display gcm messages
TextView lblMessage;
// Asyntask
AsyncTask<Void, Void, Void> mRegisterTask;
// Alert dialog manager
AlertDialogManager alert = new AlertDialogManager();
// Connection detector
ConnectionDetector cd;
public static String name;
public static String email;
#Override
public void onCreate(Bundle savedInstanceState) {
SharedPreferences pref = getSharedPreferences("ActivityPREF", Context.MODE_PRIVATE);
if(pref.getBoolean("activity_executed", false)){
Intent intent = new Intent(this, web_index.class);
startActivity(intent);
finish();
} else {
Editor ed = pref.edit();
ed.putBoolean("activity_executed", true);
ed.commit();
}
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
cd = new ConnectionDetector(getApplicationContext());
// Check if Internet present
if (!cd.isConnectingToInternet()) {
// Internet Connection is not present
alert.showAlertDialog(MainActivity.this,
"Internet Connection Error",
"Please connect to working Internet connection", false);
// stop executing code by return
return;
}
// Getting name, email from intent
Intent i = getIntent();
name = i.getStringExtra("name");
email = i.getStringExtra("email");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(this);
// Make sure the manifest was properly set - comment out this line
// while developing the app, then uncomment it when it's ready.
GCMRegistrar.checkManifest(this);
lblMessage = (TextView) findViewById(R.id.lblMessage);
registerReceiver(mHandleMessageReceiver, new IntentFilter(
DISPLAY_MESSAGE_ACTION));
// Get GCM registration id
final String regId = GCMRegistrar.getRegistrationId(this);
// Check if regid already presents
if (regId.equals("")) {
// Registration is not present, register now with GCM
GCMRegistrar.register(this, SENDER_ID);
} else {
// Device is already registered on GCM
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
Toast.makeText(getApplicationContext(), "Welcome Back", Toast.LENGTH_SHORT).show();
} else {
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... params) {
// Register on our server
// On server creates a new user
ServerUtilities.register(context, name, email, regId);
return null;
}
#Override
protected void onPostExecute(Void result) {
mRegisterTask = null;
}
};
mRegisterTask.execute(null, null, null);
}
}
}
/**
* Receiving push messages
* */
private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
// Waking up mobile if it is sleeping
WakeLocker.acquire(getApplicationContext());
/**
* Take appropriate action on this message
* depending upon your app requirement
* For now i am just displaying it on the screen
* */
// Showing received message
lblMessage.append(newMessage + "\n");
Toast.makeText(getApplicationContext(), "New Message: " + newMessage, Toast.LENGTH_SHORT).show();
// Releasing wake lock
WakeLocker.release();
}
};
#Override
protected void onDestroy() {
if (mRegisterTask != null) {
mRegisterTask.cancel(true);
}
try {
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(this);
} catch (Exception e) {
Log.e("UnRegister Receiver Error", "> " + e.getMessage());
}
super.onDestroy();
}}
Can anyone guide me to get rid this error.

Google Drive SDK Activity Not Found Exception

I am trying to implement Stephen Wylie's Google Drive example (here). Here is my code:
package com.googledrive.googledriveapp;
// For Google Drive / Play Services
// Version 1.1 - Added new comments & removed dead code
// Stephen Wylie - 10/20/2012
import java.io.IOException;
import java.util.ArrayList;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import com.google.android.gms.auth.GoogleAuthException;
import com.google.android.gms.auth.GoogleAuthUtil;
import com.google.android.gms.auth.UserRecoverableAuthException;
import com.google.android.gms.common.AccountPicker;
import com.google.api.client.auth.oauth2.BearerToken;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.android2.AndroidHttp;
import com.google.api.client.googleapis.extensions.android2.auth.GoogleAccountManager;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.json.JsonHttpRequest;
import com.google.api.client.http.json.JsonHttpRequestInitializer;
import com.google.api.client.json.jackson.JacksonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.Drive.Apps.List;
import com.google.api.services.drive.Drive.Files;
import com.google.api.services.drive.DriveRequest;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.api.services.drive.model.FileList;
public class MainActivity extends Activity {
private static final int CHOOSE_ACCOUNT=0;
private static String accountName;
private static int REQUEST_TOKEN=0;
private Button btn_drive;
private Context ctx = this;
private Activity a = this;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// set up the GUI layout
setContentView(R.layout.activity_main);
// set the variables to access the GUI controls
btn_drive = (Button) findViewById(R.id.btn_drive);
btn_drive.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
chooseAccount();
}
});
}
public void chooseAccount() {
Intent intent = AccountPicker.newChooseAccountIntent(null, null, new String[]{"com.google"}, false, null, null, null, null);
startActivityForResult(intent, CHOOSE_ACCOUNT);
}
// Fetch the access token asynchronously.
void getAndUseAuthTokenInAsyncTask(Account account) {
AsyncTask<Account, String, String> task = new AsyncTask<Account, String, String>() {
ProgressDialog progressDlg;
AsyncTask<Account, String, String> me = this;
#Override
protected void onPreExecute() {
progressDlg = new ProgressDialog(ctx, ProgressDialog.STYLE_SPINNER);
progressDlg.setMax(100);
progressDlg.setTitle("Validating...");
progressDlg.setMessage("Verifying the login data you entered...\n\nThis action will time out after 10 seconds.");
progressDlg.setCancelable(false);
progressDlg.setIndeterminate(false);
progressDlg.setOnCancelListener(new android.content.DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface d) {
progressDlg.dismiss();
me.cancel(true);
}
});
progressDlg.show();
}
#Override
protected String doInBackground(Account... params) {
return getAccessToken(params[0]);
}
#Override
protected void onPostExecute(String s) {
if (s == null) {
// Wait for the extra intent
} else {
accountName = s;
getDriveFiles();
}
progressDlg.dismiss();
}
};
task.execute(account);
}
/**
* Fetches the token from a particular Google account chosen by the user. DO NOT RUN THIS DIRECTLY. It must be run asynchronously inside an AsyncTask.
* #param activity
* #param account
* #return
*/
private String getAccessToken(Account account) {
try {
return GoogleAuthUtil.getToken(ctx, account.name, "oauth2:" + DriveScopes.DRIVE_READONLY); // IMPORTANT: DriveScopes must be changed depending on what level of access you want
} catch (UserRecoverableAuthException e) {
// Start the Approval Screen intent, if not run from an Activity, add the Intent.FLAG_ACTIVITY_NEW_TASK flag.
a.startActivityForResult(e.getIntent(), REQUEST_TOKEN);
e.printStackTrace();
return null;
} catch (GoogleAuthException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
private Drive getDriveService() {
HttpTransport ht = AndroidHttp.newCompatibleTransport(); // Makes a transport compatible with both Android 2.2- and 2.3+
JacksonFactory jf = new JacksonFactory(); // You need a JSON parser to help you out with the API response
Credential credential = new Credential(BearerToken.authorizationHeaderAccessMethod()).setAccessToken(accountName);
HttpRequestFactory rf = ht.createRequestFactory(credential);
Drive.Builder b = new Drive.Builder(ht, jf, null);
b.setJsonHttpRequestInitializer(new JsonHttpRequestInitializer() {
#Override
public void initialize(JsonHttpRequest request) throws IOException {
DriveRequest driveRequest = (DriveRequest) request;
driveRequest.setPrettyPrint(true);
driveRequest.setOauthToken(accountName);
}
});
return b.build();
}
/**
* Obtains a list of all files on the signed-in user's Google Drive account.
*/
private void getDriveFiles() {
Drive service = getDriveService();
Log.d("SiteTrack", "FUNCTION getDriveFiles()");
Files.List request;
try {
request = service.files().list(); // .setQ("mimeType=\"text/plain\"");
} catch (IOException e) {
e.printStackTrace();
return;
}
do {
FileList files;
try {
Log.d("SiteTrack", request.toString());
files = request.execute();
} catch (IOException e) {
e.printStackTrace();
Log.d("SiteTrack", "Exception");
return;
}
ArrayList<File> fileList = (ArrayList<File>) files.getItems();
Log.d("SiteTrack", "Files found: " + files.getItems().size());
for (File f : fileList) {
String fileId = f.getId();
String title = f.getTitle();
Log.d("SiteTrack", "File " + fileId + ": " + title);
}
request.setPageToken(files.getNextPageToken());
} while (request.getPageToken() != null && request.getPageToken().length() >= 0);
}
protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
if (requestCode == CHOOSE_ACCOUNT && resultCode == RESULT_OK) {
accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
GoogleAccountManager gam = new GoogleAccountManager(this);
getAndUseAuthTokenInAsyncTask(gam.getAccountByName(accountName));
Log.d("SiteTrack", "CHOOSE_ACCOUNT");
} else if (requestCode == REQUEST_TOKEN && resultCode == RESULT_OK) {
accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
Log.d("SiteTrack", "REQUEST_TOKEN");
}
}
}
Here is my manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.googledrive.googledriveapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="android.app.ActivityGroup" />
</activity>
</application>
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.INTERNET" />
</manifest>
Here is my activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/btn_drive"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Connect to Google Drive" />
</LinearLayout>
And here is the LogCat error I receive. It occurs when the button is pressed:
10-28 00:25:28.637: E/AndroidRuntime(842): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.google.android.gms.common.account.CHOOSE_ACCOUNT (has extras) }
10-28 00:25:28.637: E/AndroidRuntime(842): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1512)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1384)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.app.Activity.startActivityForResult(Activity.java:3190)
10-28 00:25:28.637: E/AndroidRuntime(842): at com.googledrive.googledriveapp.MainActivity.chooseAccount(MainActivity.java:67)
10-28 00:25:28.637: E/AndroidRuntime(842): at com.googledrive.googledriveapp.MainActivity$1.onClick(MainActivity.java:60)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.view.View.performClick(View.java:3511)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.view.View$PerformClick.run(View.java:14105)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.os.Handler.handleCallback(Handler.java:605)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.os.Handler.dispatchMessage(Handler.java:92)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.os.Looper.loop(Looper.java:137)
10-28 00:25:28.637: E/AndroidRuntime(842): at android.app.ActivityThread.main(ActivityThread.java:4424)
10-28 00:25:28.637: E/AndroidRuntime(842): at java.lang.reflect.Method.invokeNative(Native Method)
10-28 00:25:28.637: E/AndroidRuntime(842): at java.lang.reflect.Method.invoke(Method.java:511)
10-28 00:25:28.637: E/AndroidRuntime(842): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
10-28 00:25:28.637: E/AndroidRuntime(842): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
10-28 00:25:28.637: E/AndroidRuntime(842): at dalvik.system.NativeStart.main(Native Method)
Can anyone help out?

We've been doing some experimenting, and our current theory is that the new Google OAuth Library depends on having the latest version of Google Play.
We found that if your device still has the Android Marketplace, or an older Google Play we couldn't get OAuth to work.
So you might try opening the Android Marketplace or Google Play App to kick off an upgrade.
Open the Android Marketplace, Accept the Upgrade to Google Play.
Close the Marketplace, and open the Google Play App.
Accept the Terms of Service for Google Play.
Wait a few seconds, sacrifice a chicken, and then you should be able to run Google OAuth.
EDIT: Looks like Google Provides some guidance on what your app should do if your users are missing the correct Google Play version. See: https://developer.android.com/google/play-services/setup.html#ensure

Google Drive API seems (acording to the Google people) to only works on a real Device, in the Emulator it will crash with this error.
So my Advice, try on a real device.