I am trying to change the main activity in android to another activity and playing a video in the new activity. but, even I changed in the manifest the main activity, it didn't show me the video when I'm starting the app. I tried to Check in the Logcat if the activity is still launched, and i didn't see any message.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mta2223">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.MTA2223">
<activity
android:name=".Entering"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ActivityShowingPlayers"
android:exported="false" />
<activity
android:name=".MainActivity"
android:exported="true">
</activity>
</application>
</manifest>
The new activity
package com.example.mta2223;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.widget.MediaController;
import android.widget.VideoView;
public class Entering extends AppCompatActivity {
VideoView videoView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_entering);
videoView= (VideoView) findViewById(R.id.videoV);
videoView.setVideoPath("res/raw/intrologo.3gp");
videoView.start();
while (videoView.isPlaying()){
Log.d("HEy","hey");
}
videoView.stopPlayback();
Intent i = new Intent(this,MainActivity.class);
startActivity(i);
finish();
}
}
Try this
In this code get video path from raw folder
String path = "android.resource://com.example.mta2223" + "/" + R.raw.intrologo;
videoView.setVideoPath(path);
videoView.start();
Related
I am designing an android application in java and I would like it to launch when the smartphone starts up I of course registered a BroadcastReceiver for the BOOT event of my phone as explained here but it does not work on Android 10 if not for info it worked on Android 4.1.
Can you help me please ?
Here is my code:
Manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.openclassrooms.fr.premierprojet">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".PremiereActivite">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".StartAppOnBoot">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
</application>
</manifest>
Classe Main :
package com.openclassrooms.fr.premierprojet;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class PremiereActivite extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Classe Diffuseur :
package com.openclassrooms.fr.premierprojet;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class StartAppOnBoot extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
Intent i = new Intent(context, PremiereActivite.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
}
Cordially.
I need to know how to make an application that I created in Android and made in Android Studio runs automatically when the device boots.
The only thing I have found is this guide https://codigofacilito.com/articulos/auto-ejecucion-de-una-aplicacion-al-inicio-de-un-depositivo-con-android but it does not run when the device starts.
ANDROID MANIFEST
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.resolucion.pruebaauto">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:enabled="true"
android:name=".Auto"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
</manifest>
BROADCAST RECEIVER
package com.resolucion.pruebaauto;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class Auto extends BroadcastReceiver{
public void onReceive(Context context,Intent intent) {
if (Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
Intent i = new Intent(context, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
}
MAINACTIVITY
package com.resolucion.pruebaauto;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
I tried to do a broadcast receiver dynamically for incoming SMS will show a toast but the app doesn't show anything.
I register the broadcast dynamically in the mainActivity like this.
MainActivity.java
package com.example.smsreader;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
BroadcastReader reader = new BroadcastReader();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
IntentFilter filter = new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
registerReceiver(reader, filter);
}
}
This is brodcast class, the app will show a toast when the phone will receive a SMS but it doesn't
package com.example.smsreader;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
public class BroadcastReader extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if("android.provider.Telephony.SMS_RECEIVED".equals(intent.getAction())){
Toast.makeText(context, "it is working", Toast.LENGTH_LONG).show();
}
}
}
I don't register anything in the manifest file.
Manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.smsreader">
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Try the following :
intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
You need to use the following method for registering local broadcastReceiver ;)
LocalBroadcastManager.getInstance(this).registerReceiver(reader, filter)
i have one package with two class
MainActivity:
package co.edu.unimagdalena.projecto;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends Activity implements OnClickListener {
String[] info;
private EditText nombre;
private EditText apellido;
private EditText email;
private EditText telefono;
private Button enviar;
final static String INFO = "co.edu.unimagdalena.projecto.informacion2";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
nombre=(EditText)findViewById(R.id.EditTextNombre);
apellido=(EditText)findViewById(R.id.EditTextApellidos);
email=(EditText)findViewById(R.id.EditTextCorreo);
telefono=(EditText)findViewById(R.id.EditTextTelefono);
enviar = (Button)findViewById(R.id.BtnEnviar);
enviar.setOnClickListener(this);
info=new String[4];
}
public void onClick (View v){
Intent intent = new Intent (this, informacion2.class);
intent.setClassName("co.edu.unimagdalena.projecto","co.edu.unimagdalena.projecto.informacion2");
startActivity(intent);
}
public void pasarActidadInfo (View v){
info [0] = nombre.getText().toString();
info [1] = apellido.getText().toString();
info [2] = email.getText().toString();
info [3] = telefono.getText().toString();
Intent act = new Intent (this, informacion2.class);
act.putExtra(INFO, info);
startActivity(act);
}
and other class call it informacion2:
package co.edu.unimagdalena.projecto;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.widget.TextView;
import co.edu.unimagdalena.projecto.MainActivity;
public class informacion2 extends Activity {
String [] info;
TextView nombre,apellido,email,telefono;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.informacion2);
nombre = (TextView) findViewById(R.id.mostrarNombre);
apellido= (TextView) findViewById(R.id.mostrarApellido);
email = (TextView) findViewById(R.id.mostrarEmail);
telefono = (TextView) findViewById(R.id.mostrarTelefono);
Intent men = getIntent();
info = men.getStringArrayExtra(MainActivity.INFO);
nombre.setText(info[0]);
apellido.setText(info[1]);
email.setText(info[2]);
telefono.setText(info[3]);
}
}
and this is the AndroidManifest.xml file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="co.edu.unimagdalena.projecto">
<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>
<activity
android:name=".informacion2"
android:label="#string/app_name">
</activity>
</manifest>
**I already trying everything and the error is not corrected, i am new in android studio
I can fix the error but now android studio give me this error
java.lang.RuntimeException: Unable to start activity ComponentInfo{co.edu.unimagdalena.projecto/co.edu.unimagdalena.projecto.informacion2}: java.lang.NullPointerException: Attempt to read from null array**
Try including other activity inside application in manifest file like this
<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>
<activity
android:name=".informacion2"
android:label="#string/app_name">
</activity>
</application>
setClassName takes a Package Context as first param setClassName(Context packageContext, String className):
In Android manifest
<activity android:name="co.edu.unimagdalena.projecto.informacion2">
And while starting the activity from your main activity
intent.setClassName("co.edu.unimagdalena.projecto","co.edu.unimagdalena.projecto.informacion2");
You are getting NullPointerException inside second activity, when you try to get values of Array. And you are filling array inside pasarActidadInfo method of first activity. The problem is that you are not calling pasarActidadInfo from anywhere after filling array in your first activity. So,your array would be null.
Try calling pasarActidadInfo method when you want to start new activity.
May be in onClick of button.
Always declare all android components (activities, service, receivers) inside the application tag / block and other configurations will be defined outside of application tag/block and inside manifest tag / block in Androidmanifest.xml.
Copy and paste this code in your manifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="co.edu.unimagdalena.projecto">
<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>
<activity
android:name=".informacion2"
android:label="#string/app_name">
</activity>
</application>
</manifest>
Hi im trying to make it that when a user clicks on on a button the phone vibrates. Heres manifest.xml and AndroidVibrator.java so whats wrong? how can i fix it? thanks!
heres the manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="android.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-sdk android:minSdkVersion="7" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".AndroidActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activity2"
android:screenOrientation="portrait"
android:label="#string/app_name" >
</activity>
<activity android:name=".activity3"
android:screenOrientation="portrait"
android:label="#string/app_name" >
</activity>
<activity android:name=".next" >
</activity>
</application>
</manifest>
Heres AndroidActivity:
package android.app;
import android.app.R;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.View;
import android.os.Vibrator;
public class AndroidVibrator extends Activity implements OnClickListener
{
private View myView;
private Vibrator myVib;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
myVib = (Vibrator) this.getSystemService(VIBRATOR_SERVICE);
//myView can be any type of view, button, etc.
myView = (View) this.findViewById(R.id.sound);
myView.setOnClickListener((android.view.View.OnClickListener) this);
}
public void onClick(View v)
{
myVib.vibrate(50);
//add whatever you want after this
}
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
}
}
Make sure you call
<uses-permission android:name="android.permission.VIBRATE" />
In your manifest
EDIT:
Try putting your permission at the end of the manifest, or after version code.
I've responded to your previous post about the same matter
this time you place the permissions over uses sdk...
check my other answer.
Also check the ouput of LogCat. Does your application force closes?
may be 50 ms is too short to feel vibrate
try more than 50ms