问题
I am trying to open an intent to choose a photo from the android gallery and then set an image view in the parent activity with the chosen image. I am able to open gallery and choose and image but then the parent activity crashes in the onActivityResult() method. The crash occurs in the Cursor instantiation line.
<!--
The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
Google Maps Android API v2, but you must specify either coarse or fine
location permissions for the 'MyLocation' functionality.
-->
<!--<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />-->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
Parent Activity on Result method
Uri selectedImage = data.getData();
if(!isExternalStorageReadable()) {
Log.d("NAMSD", "SS");
} else {
Log.d("hey", selectedImage.toString());
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Bitmap imageBitmap = BitmapFactory.decodeFile(picturePath);
photo.setImageBitmap(imageBitmap);
}
Stach Trace:
02-16 16:09:54.108 1803-1815/? E/DatabaseUtils: Writing exception to parcel java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/37 from pid=8382, uid=10057 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission() at android.content.ContentProvider.enforceReadPermissionInner(ContentProvider.java:605) at android.content.ContentProvider$Transport.enforceReadPermission(ContentProvider.java:480) at android.content.ContentProvider$Transport.query(ContentProvider.java:211) at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:112) at android.os.Binder.execTransact(Binder.java:453) 02-16 16:09:54.108 8382-8382/? D/AndroidRuntime: Shutting down VM 02-16 16:09:54.109 8382-8382/? E/AndroidRuntime: FATAL EXCEPTION: main Process: io.github.getExposure, PID: 8382 java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=3, result=-1, data=Intent { dat=content://media/external/images/media/37 }} to activity {io.github.getExposure/io.github.getExposure.PostViewActivity}: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/37 from pid=8382, uid=10057 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission() at android.app.ActivityThread.deliverResults(ActivityThread.java:3699) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.-wrap16(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/images/media/37 from pid=8382, uid=10057 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission() at android.os.Parcel.readException(Parcel.java:1599) at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183) at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135) at android.content.ContentProviderProxy.query(ContentProviderNative.java:421) at android.content.ContentResolver.query(ContentResolver.java:491) at android.content.ContentResolver.query(ContentResolver.java:434) at io.github.getExposure.PostViewActivity.onActivityResult(PostViewActivity.java:135) at android.app.Activity.dispatchActivityResult(Activity.java:6428) at android.app.ActivityThread.deliverResults(ActivityThread.java:3695) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.-wrap16(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
回答1:
The question is not clear, but I suspect you are compiling with android-23 API (Marshmallow) and It has introduced the new way of asking the user for permission on the spot of using it, so have two choices
- (Recommended) Ask the user for that permission before using it. More info here.
- (NOT recommended) Change you target API to a pre-Marshmallow version and that reverts to the old way of asking about all the permissions on application installation.
回答2:
permissions = new String[2];
permissions[0] = Manifest.permission.WRITE_EXTERNAL_STORAGE;
permissions[1] = Manifest.permission.READ_EXTERNAL_STORAGE;
ActivityCompat.requestPermissions(
this,
permissions,
5
);
I just needed to explicitly ask for permission to read/write external storage in my activity because of android marshmallow.
来源：https://stackoverflow.com/questions/35445733/android-permission-error-even-with-declaration-in-manifest-xml