Develop Reference

Android 11, can start intent to share file but file is not attatched

after tinkering with the paths XML and my manifest provider settings I was finally able to get my app to stop crashing when trying to send an attachment in an email intent.
HOWEVER, while everything seems normal in the app, when Gmail or drive opens the file is not attached.
Screenshots:
My code is as follows
MainActivity.java
package com.loopbreakr.filesend;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.FileProvider;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.File;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
public String reciever;
public String subject;
public String body;
public final String stringPath = "/storage/emulated/0/Android/data/com.loopbreakr.firstpdf/files/PDF_files/Abdile&Name 2021-01-29&15:59:55.pdf";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
reciever = "mkercode#gmail.com";
subject = "my subject";
body = "blank email";
File file = new File(stringPath);
Button button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
prepareEmail(file);
}
});
}
private void prepareEmail(File report) {
ArrayList<Uri> uris = new ArrayList<>();
uris.add(FileProvider.getUriForFile(getApplicationContext(), "com.loopbreakr.filesend", report));
Intent intent = new Intent(Intent.ACTION_SEND_MULTIPLE);
intent.setType("message/rfc822");
intent.putExtra(Intent.EXTRA_EMAIL, reciever);
intent.putExtra(Intent.EXTRA_SUBJECT, subject);
intent.putExtra(Intent.EXTRA_TEXT, body);
intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(Intent.createChooser(intent, "Send email via:").addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION));
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.loopbreakr.filesend">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<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.Filesend">
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="com.loopbreakr.filesend"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/file_paths" />
</provider>
<meta-data
android:name="com.google.android.actions"
android:resource="#xml/file_paths" />
<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>
file_paths.xml
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="external"
path="." />
<external-files-path
name="external_files"
path="." />
<cache-path
name="cache"
path="." />
<external-cache-path
name="external_cache"
path="." />
<files-path
name="files"
path="." />
</paths>
As the program can find my file, I don't think it's a permission error anymore. The file is also on external storage. Is it possible that I am missing something in the intent? Many thanks!
EDITED
Note that I originally manually set the permissions to make my question more readable, however after adding runtime storage reading permissions to my code and simplifying the filename, as well as changing the intent to only send one file I get the couldn't attach file toast message
MainActivity.java:
package com.loopbreakr.filesend;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.content.FileProvider;
import android.Manifest;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.io.File;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
public String reciever;
public String subject;
public String body;
public final String stringPath = "/storage/emulated/0/Android/data/samplefile.pdf";
private int STORAGE_PERMISSION_CODE = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
reciever = "mkercode#gmail.com";
subject = "my subject";
body = "blank email";
File file = new File(stringPath);
Button button = findViewById(R.id.button);
if (ContextCompat.checkSelfPermission(MainActivity.this,
Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(MainActivity.this, "You have already granted this permission!",
Toast.LENGTH_SHORT).show();
} else {
requestStoragePermission();
}
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
prepareEmail(file);
}
});
}
private void prepareEmail(File report) {
Uri uri = FileProvider.getUriForFile(getApplicationContext(), "com.loopbreakr.filesend", report);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("message/rfc822");
intent.putExtra(Intent.EXTRA_EMAIL, reciever);
intent.putExtra(Intent.EXTRA_SUBJECT, subject);
intent.putExtra(Intent.EXTRA_TEXT, body);
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
Intent chooser = Intent.createChooser(intent, "Share File");
List<ResolveInfo> resInfoList = this.getPackageManager().queryIntentActivities(chooser, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo resolveInfo : resInfoList) {
String packageName = resolveInfo.activityInfo.packageName;
this.grantUriPermission(packageName, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION | Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
startActivity(chooser);
}
private void requestStoragePermission() {
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.READ_EXTERNAL_STORAGE)) {
new AlertDialog.Builder(this)
.setTitle("Permission needed")
.setMessage("This permission is needed because of this and that")
.setPositiveButton("ok", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
ActivityCompat.requestPermissions(MainActivity.this,
new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);
}
})
.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
.create().show();
} else {
ActivityCompat.requestPermissions(this,
new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, STORAGE_PERMISSION_CODE);
}
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
if (requestCode == STORAGE_PERMISSION_CODE) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "Permission GRANTED", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Permission DENIED", Toast.LENGTH_SHORT).show();
}
}
}
}
Am I missing something in my manifest?

I tried to send PDF attachment with ACTION_SEND_MULTIPLE and I found your problem is that you need to grant the explicit permission to email Intent (not to the chooser Intent as you do). My code:
Intent emailIntent = new Intent(Intent.ACTION_SEND_MULTIPLE);//ACTION_SEND does not support purParcelableArrayListExtra
emailIntent.setType("text/plain");
emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{testBox.getEmail()});
emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Covid Test Certificate result");
emailIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);//attaching the pdf file(s) to the email
emailIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//does not really work right now, I had to give explicit permissions
//GRANTING THE PERMISSIONS EXPLICITLY HERE! to all possible choosers (3rd party apps):
List<ResolveInfo> resolvedInfoActivities =
activity.getPackageManager().queryIntentActivities(emailIntent, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo ri : resolvedInfoActivities) {
for (Uri uri : uris) {
Log.d(TAG, "Granting permission to - " + ri.activityInfo.packageName);
activity.grantUriPermission(ri.activityInfo.packageName,uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
}
try {
Intent chooserIntent =Intent.createChooser(emailIntent, "Send mail...").addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.startActivity(
chooserIntent
);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(activity, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
Log.e(TAG, "ERROR, THERE ARE NO EMAIL CLIENTS INSTALLED.");
}
And for others wondering about the permissions, this is a good article:
https://medium.com/#benexus/dealing-with-permissions-when-sharing-files-android-m-cee9ecc287bf
It says the explicit permissions are needed, because the permissions added via provider in Manifest and via Intent do not work.

My app quits as soon as picture is selected

I have created an app that basically takes a picture and saves it to the gallery. The only problem is that after the picture is taken it takes you to the screen where you can preview it with the two buttons that say okay and cancel. Once you click okay, the app quits. The image is still saved to the gallery but I want the app to stay open. I also want the app to display a bitmap of the image on an imageView that I have.
Here is my MainActivity.java
package com.example.app;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.FileProvider;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActivity { <- Line 22
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = findViewById(R.id.button);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dispatchTakePictureIntent(); <- Line 34
}
});
}
static final int REQUEST_IMAGE_CAPTURE = 1;
private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File
// I AM UNSURE WHAT CODE TO PUT HERE. DOES ANYONE KNOW WHAT I SHOULD BE PUTTING HERE?
}
// Continue only if the File was successfully created
if (photoFile != null) {
//This is where the error is occurring but I do not know why.
Line 56 -> Uri photoURI = FileProvider.getUriForFile(this, "com.example.app", photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
}
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
ImageView imageView = findViewById(R.id.imageView);
imageView.setImageBitmap(imageBitmap);
}
}
String currentPhotoPath;
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
currentPhotoPath = image.getAbsolutePath();
return image;
}
private void galleryAddPic() {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(currentPhotoPath);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
}
Here is my error message
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.app, PID: 22357
java.lang.IllegalArgumentException: Couldn't find meta-data for provider with authority com.example.app
at androidx.core.content.FileProvider.parsePathStrategy(FileProvider.java:606)
at androidx.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:417)
--> at com.example.app.MainActivity.dispatchTakePictureIntent(MainActivity.java:56)
--> at com.example.app.MainActivity.access$000(MainActivity.java:22)
--> at com.example.app.MainActivity$1.onClick(MainActivity.java:34)
at android.view.View.performClick(View.java:7870)
at android.widget.TextView.performClick(TextView.java:14966)
at android.view.View.performClickInternal(View.java:7839)
at android.view.View.access$3600(View.java:886)
at android.view.View$PerformClick.run(View.java:29315)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:7777)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1047)
I/Process: Sending signal. PID: 22357 SIG: 9

Start Camera RuntimeException - android Camera API

The following code throws a runtime exception when trying to start a camera with deprecated Camera API for android:
E/MediaRecorder: start failed: -19
E/AndroidRuntime: FATAL EXCEPTION: IntentService[RecordIntentService]
Process: com.example.songtry2, PID: 15956
java.lang.RuntimeException: start failed.
at android.media.MediaRecorder._start(Native Method)
at android.media.MediaRecorder.start(MediaRecorder.java:1348)
at com.example.songtry2.RecordIntentService.prepareVideoRecorder(RecordIntentService.java:259)
at com.example.songtry2.RecordIntentService.handleActionRecord(RecordIntentService.java:149)
at com.example.songtry2.RecordIntentService.onHandleIntent(RecordIntentService.java:119)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:76)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.os.HandlerThread.run(HandlerThread.java:65)
D/ViewRootImpl#1099d2e[MainActivity]: dispatchDetachedFromWindow
I/Process: Sending signal. PID: 15956 SIG: 9
Disconnected from the target VM, address: 'localhost:8603', transport: 'socket'
I really tried using the new camera2 API, but had no luck with it...
The service I am trying to create should open the camera in a service and record video in the background until the camera should be closed.
Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.songtry2">
<uses-permission android:name="android.permission.RECORD_AUDIO"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera.front" android:required="false" />
<uses-feature android:name="android.hardware.camera" android:required="false" />
<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">
<service
android:name=".RecordIntentService"
android:exported="false">
</service>
<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>
The code which the MainActivity uses in order to open the camera:
package com.example.songtry2;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.app.IntentService;
import android.app.Service;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
0);
} else {
Toast.makeText(this, "wow storage", Toast.LENGTH_SHORT).show();
Log.d("camera","camera");
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO},
0);
} else {
Toast.makeText(this, "Camera on! Cool!!!", Toast.LENGTH_SHORT).show();
Log.d("camera","camera");
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA},
0);
}
RecordIntentService.startActionRecord(this);
}
}
'getCameraInstance' function used in order to search for a front-facing camera and open it for use:
public static Camera getCameraInstance(){
int cameraCount = 0;
Camera cam = null;
Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
cameraCount = Camera.getNumberOfCameras();
for (int camIdx = 0; camIdx < cameraCount; camIdx++) {
Camera.getCameraInfo(camIdx, cameraInfo);
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
try {
cam = Camera.open(camIdx);
} catch (RuntimeException e) {
Log.e(TAG, "Camera failed to open: " + e.getLocalizedMessage());
}
}
}
return cam;
}
The function which uses the camera in the Recording Service code:
private boolean prepareVideoRecorder(){
mCamera = getCameraInstance();
recorder = new MediaRecorder();
recorder.reset();
//recorder.setCamera(Camera.Face);
// Step 1: Unlock and set camera to MediaRecorder
mCamera.unlock();
recorder.setCamera(mCamera);
// Step 2: Set sources
recorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
// Step 3: Set a CamcorderProfile (requires API Level 8 or higher)
//recorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
CamcorderProfile profile = CamcorderProfile.get(Camera.CameraInfo.CAMERA_FACING_FRONT,CamcorderProfile.QUALITY_LOW);
recorder.setProfile(profile);
// Step 4: Set output file
recorder.setOutputFile(getOutputMediaFile(MEDIA_TYPE_VIDEO).toString());
// Step 6: Prepare configured MediaRecorder
try {
recorder.prepare();
recorder.start();
} catch (IllegalStateException e) {
Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.getMessage());
System.out.println("ERROR" + e.getMessage());
releaseMediaRecorder();
return false;
} catch (IOException e) {
Log.d(TAG, "IOException preparing MediaRecorder: " + e.getMessage());
releaseMediaRecorder();
return false;
}
return true;
}
private void releaseCamera(){
if (mCamera != null){
mCamera.release(); // release the camera for other applications
mCamera = null;
}
}

Run Time Error: FATAL EXCEPTION: main java.lang.ExceptionInInitializerError

Hi am new to Android App development and i was trying to implement a simple OCR App found here: https://github.com/GautamGupta/Simple-Android-OCR
Am using android studio, i found some errors that had to do with permission which i fixed but now i am getting this error:
03-31 20:07:55.010 822-822/com.example.zakaria.myapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.ExceptionInInitializerError
at engenoid.tessocrtest.MainActivity.onPhotoTaken(MainActivity.java:210)
at engenoid.tessocrtest.MainActivity.onActivityResult(MainActivity.java:134)
at android.app.Activity.dispatchActivityResult(Activity.java:5515)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3429)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3476)
at android.app.ActivityThread.access$1200(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1337)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5317)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.UnsatisfiedLinkError: Couldn't load lept from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.example.zakaria.myapp-10.apk,libraryPath=/data/app-lib/com.example.zakaria.myapp-10]: findLibrary returned null
at java.lang.Runtime.loadLibrary(Runtime.java:365)
at java.lang.System.loadLibrary(System.java:535)
at com.googlecode.tesseract.android.TessBaseAPI.<clinit>(TessBaseAPI.java:44)
            at engenoid.tessocrtest.MainActivity.onPhotoTaken(MainActivity.java:210)
            at engenoid.tessocrtest.MainActivity.onActivityResult(MainActivity.java:134)
            at android.app.Activity.dispatchActivityResult(Activity.java:5515)
            at android.app.ActivityThread.deliverResults(ActivityThread.java:3429)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3476)
            at android.app.ActivityThread.access$1200(ActivityThread.java:157)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1337)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:176)
            at android.app.ActivityThread.main(ActivityThread.java:5317)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
            at dalvik.system.NativeStart.main(Native Method)
Here is the main Activity:
package engenoid.tessocrtest;
import android.app.Activity;
import android.content.Intent;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.example.zakaria.myapp.R;
import com.googlecode.tesseract.android.TessBaseAPI;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class MainActivity extends Activity {
public static final String PACKAGE_NAME = "com.datumdroid.android.ocr.simple";
public static final String DATA_PATH = Environment
.getExternalStorageDirectory().toString() + "/SimpleAndroidOCR/";
// You should have the trained data file in assets folder
// You can get them at:
// http://code.google.com/p/tesseract-ocr/downloads/list
public static final String lang = "eng";
private static final String TAG = "SimpleAndroidOCR.java";
protected Button _button;
// protected ImageView _image;
protected EditText _field;
protected String _path;
protected boolean _taken;
protected static final String PHOTO_TAKEN = "photo_taken";
#Override
public void onCreate(Bundle savedInstanceState) {
String[] paths = new String[] { DATA_PATH, DATA_PATH + "tessdata/" };
for (String path : paths) {
File dir = new File(path);
if (!dir.exists()) {
if (!dir.mkdirs()) {
Log.v(TAG, "ERROR: Creation of directory " + path + " on sdcard failed");
return;
} else {
Log.v(TAG, "Created directory " + path + " on sdcard");
}
}
}
// lang.traineddata file with the app (in assets folder)
// You can get them at:
// http://code.google.com/p/tesseract-ocr/downloads/list
// This area needs work and optimization
if (!(new File(DATA_PATH + "tessdata/" + lang + ".traineddata")).exists()) {
try {
AssetManager assetManager = getAssets();
InputStream in = assetManager.open("tessdata/" + lang + ".traineddata");
//GZIPInputStream gin = new GZIPInputStream(in);
OutputStream out = new FileOutputStream(DATA_PATH
+ "tessdata/" + lang + ".traineddata");
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
//while ((lenf = gin.read(buff)) > 0) {
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
//gin.close();
out.close();
Log.v(TAG, "Copied " + lang + " traineddata");
} catch (IOException e) {
Log.e(TAG, "Was unable to copy " + lang + " traineddata " + e.toString());
}
}
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// _image = (ImageView) findViewById(R.id.image);
_field = (EditText) findViewById(R.id.field);
_button = (Button) findViewById(R.id.button);
_button.setOnClickListener(new ButtonClickHandler());
_path = DATA_PATH + "/ocr.jpg";
}
public class ButtonClickHandler implements View.OnClickListener {
public void onClick(View view) {
Log.v(TAG, "Starting Camera app");
startCameraActivity();
}
}
// Simple android photo capture:
// http://labs.makemachine.net/2010/03/simple-android-photo-capture/
protected void startCameraActivity() {
File file = new File(_path);
Uri outputFileUri = Uri.fromFile(file);
final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, 0);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.i(TAG, "resultCode: " + resultCode);
if (resultCode == -1) {
onPhotoTaken();
} else {
Log.v(TAG, "User cancelled");
}
}
#Override
protected void onSaveInstanceState(Bundle outState) {
outState.putBoolean(MainActivity.PHOTO_TAKEN, _taken);
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
Log.i(TAG, "onRestoreInstanceState()");
if (savedInstanceState.getBoolean(MainActivity.PHOTO_TAKEN)) {
onPhotoTaken();
}
}
protected void onPhotoTaken() {
_taken = true;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
Bitmap bitmap = BitmapFactory.decodeFile(_path, options);
try {
ExifInterface exif = new ExifInterface(_path);
int exifOrientation = exif.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
Log.v(TAG, "Orient: " + exifOrientation);
int rotate = 0;
switch (exifOrientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
rotate = 90;
break;
case ExifInterface.ORIENTATION_ROTATE_180:
rotate = 180;
break;
case ExifInterface.ORIENTATION_ROTATE_270:
rotate = 270;
break;
}
Log.v(TAG, "Rotation: " + rotate);
if (rotate != 0) {
// Getting width & height of the given image.
int w = bitmap.getWidth();
int h = bitmap.getHeight();
// Setting pre rotate
Matrix mtx = new Matrix();
mtx.preRotate(rotate);
// Rotating Bitmap
bitmap = Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, false);
}
// Convert to ARGB_8888, required by tess
bitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
} catch (IOException e) {
Log.e(TAG, "Couldn't correct orientation: " + e.toString());
}
// _image.setImageBitmap( bitmap );
Log.v(TAG, "Before baseApi");
TessBaseAPI baseApi = new TessBaseAPI();
baseApi.setDebug(true);
baseApi.init(DATA_PATH, lang);
baseApi.setImage(bitmap);
String recognizedText = baseApi.getUTF8Text();
baseApi.end();
// You now have the text in recognizedText var, you can do anything with it.
// We will display a stripped out trimmed alpha-numeric version of it (if lang is eng)
// so that garbage doesn't make it to the display.
Log.v(TAG, "OCRED TEXT: " + recognizedText);
if ( lang.equalsIgnoreCase("eng") ) {
recognizedText = recognizedText.replaceAll("[^a-zA-Z0-9]+", " ");
}
recognizedText = recognizedText.trim();
if ( recognizedText.length() != 0 ) {
_field.setText(_field.getText().toString().length() == 0 ? recognizedText : _field.getText() + " " + recognizedText);
_field.setSelection(_field.getText().toString().length());
}
}
}
And this is the manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.zakaria.myapp" >
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-feature
android:name="android.hardware.camera.flash"
android:required="false" />
<uses-feature android:name="android.hardware.camera" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
android:name="engenoid.tessocrtest.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>
So if i need to post any thing else please tell me and thanks in advance!

#GabeSechan you are right i went through the app files and there was supposed to be a file by that name, doing some further Google search i learnt that that file is supposed to be generated when building the tess-two library used in this app, i think i didn't do that right.
thank you so much.

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.