How to share internal storage file with Gmail Client
android, android-contentprovider, android-intent, gmail
Solution
I use this:
AndroidManifest.xml
<provider android:name="com.myapp.main.MyContentProvider" android:authorities="com.myapp.main"></provider>
Button click:
public void onClick(View v) {
List<Intent> targetedShareIntents = new ArrayList<Intent>();
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("image/jpg");
Uri theUri = Uri.parse("content://com.myapp.main/"+srcImage);
List<ResolveInfo> resInfo = getPackageManager().queryIntentActivities(shareIntent, 0);
int i=0;
List<ResolveInfo> reInfoToDelete = new ArrayList<ResolveInfo>();
if (!resInfo.isEmpty()){
for (ResolveInfo resolveInfo : resInfo) {
String packageName = resolveInfo.activityInfo.packageName;
Intent targetedShareIntent = new Intent(android.content.Intent.ACTION_SEND);
targetedShareIntent.setType("image/jpg");
targetedShareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Share file");
if (packageName.equals("com.google.android.gm")){
targetedShareIntent.setType("image/png");
targetedShareIntent.putExtra(Intent.EXTRA_TEXT, "some text");
targetedShareIntent.putExtra(Intent.EXTRA_STREAM, theUri);
targetedShareIntent.setPackage(packageName);
targetedShareIntents.add(targetedShareIntent);
}
}
startActivity(targetedShareIntents.remove(0));
}
}
My Content Provider Class
public class MyContentProvider extends ContentProvider implements PipeDataWriter<InputStream>{
@Override
public AssetFileDescriptor openAssetFile(Uri uri, String mode) throws FileNotFoundException {
//Adapt this to your code
AssetManager am = getContext().getAssets();
String file_name = "path/"+uri.getLastPathSegment();
if(file_name == null)
throw new FileNotFoundException();
AssetFileDescriptor afd = null;
try {
afd = am.openFd(file_name);
} catch (IOException e) {
e.printStackTrace();
}
return afd;//super.openAssetFile(uri, mode);
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
// TODO Auto-generated method stub
return 0;
}
@Override
public String getType(Uri uri) {
// TODO Auto-generated method stub
return null;
}
@Override
public Uri insert(Uri uri, ContentValues values) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean onCreate() {
// TODO Auto-generated method stub
return false;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
// TODO Auto-generated method stub
return null;
}
@Override
public int update(Uri uri, ContentValues values, String selection,
String[] selectionArgs) {
// TODO Auto-generated method stub
return 0;
}
public void writeDataToPipe(ParcelFileDescriptor arg0, Uri arg1,
String arg2, Bundle arg3, InputStream arg4) {
// Transfer data from the asset to the pipe the client is reading.
byte[] buffer = new byte[8192];
int n;
FileOutputStream fout = new FileOutputStream(arg0.getFileDescriptor());
try {
while ((n=arg4.read(buffer)) >= 0) {
fout.write(buffer, 0, n);
}
} catch (IOException e) {
Log.i("InstallApk", "Failed transferring", e);
} finally {
try {
arg4.close();
} catch (IOException e) {
}
try {
fout.close();
} catch (IOException e) {
}
}
}
}
Problem
I am trying to share my internal storage file via Gmail client on my Moto Razr, but every time I sent to my test gmail account, I got everything except attachment. This is how I invoke and start gmail, while add file as attachment. ``` private void saveDaily() { Intent intent = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE); intent.setType("text/plain"); intent.putExtra(Intent.EXTRA_EMAIL, new String[] { loadEmailAddress() }); intent.putExtra(Intent.EXTRA_SUBJECT, "Daily"); intent.putExtra(Intent.EXTRA_TEXT, "Daily Log"); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); ArrayList<Uri> uris = new ArrayList<Uri>(); uris.add(saveDaily2File("dailyRecord.txt")); Log.d(TAG_D, "Size: " + uris.size()); intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); startActivity(Intent.createChooser(intent, "Send email")); } ``` This is how I implement my customized content provider. ``` public class SavedFileProvider extends ContentProvider { private static final String TAG_D = "ContentProvider"; private static final HashMap<String, String> MIME_TYPES = new HashMap<String, String>(); static { MIME_TYPES.put(".txt", "text/plain"); } @Override public String getType(Uri uri) { String path = uri.toString(); for (String extension : MIME_TYPES.keySet()) { if (path.endsWith(extension)) { return (MIME_TYPES.get(extension)); } } return (null); } @Override public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException { Log.d(TAG_D, "openFile()"); File f = new File(getContext().getFilesDir(), uri.getPath()); Log.d(TAG_D, f.getAbsolutePath()); if (f.exists()) { return (ParcelFileDescriptor.open(f, ParcelFileDescriptor.MODE_READ_ONLY)); } throw new FileNotFoundException(uri.getPath()); } @Override public Cursor query(Uri url, String[] projection, String selection, String[] selectionArgs, String sort) { throw new RuntimeException("Operation not supported"); } @Override public Uri insert(Uri uri, ContentValues initialValues) { throw new RuntimeException("Operation not supported"); } @Override public int update(Uri uri, ContentValues values, String where, String[] whereArgs) { throw new RuntimeException("Operation not supported"); } @Override public int delete(Uri uri, String where, String[] whereArgs) { throw new RuntimeException("Operation not supported"); } private void copy(InputStream in, File dst) throws IOException { FileOutputStream out = new FileOutputStream(dst); byte[] buf = new byte[1024]; int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } in.close(); out.close(); } @Override public boolean onCreate() { Log.d(TAG_D, "onCreate()"); File f = new File(getContext().getFilesDir(), "dailyRecord.txt"); if (!f.exists()) { AssetManager assets = getContext().getResources().getAssets(); try { copy(assets.open("dailyRecord.txt"), f); } catch (IOException e) { Log.e("FileProvider", "Exception copying from assets", e); return (false); } } return (true); } ``` } Then, I add the following lines in my AndroidManifest.xml File. ``` <provider android:name=".SavedFileProvider" android:authorities="Package Path here" android:exported="true" android:grantUriPermissions="true" android:multiprocess="true" > </provider> ``` I wonder what I am missing here. I have check the link:Link1, Link2