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POAndroid: startActivityForResult() from Fragment loses Data on Callback onActivityResult
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  1. POAndroid: startActivityForResult() from Fragment loses Data on Callback onActivityResult
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    copied!<p>Because showDialog() is decprecated, i have to use DialogFragments now to fix my Image Picker functionality. </p> <p>I got the Code from <a href="http://www.londatiga.net/it/how-to-create-android-image-picker/" rel="nofollow">here</a>, it worked like a charm so far.</p> <p>Now, to keep it simple I'll only show the necessery Codelines. First, after clicking a Button on <strong>Activity A</strong> to select an image with this a Dialog appears:</p> <pre><code>ImagePickerFragment ip= new ImagePickerFragment(); ip.show(getSupportFragmentManager(), "imagePicker"); </code></pre> <p>The Fragment Code looks like this:</p> <pre><code> public class ImagePickerFragment extends DialogFragment{ public Dialog onCreateDialog(Bundle savedInstanceState){ super.onCreate(savedInstanceState); //.. creating an adapter return new AlertDialog.Builder(getActivity()) .setTitle("select Image") .setAdapter(adapter, new DialogInterface.OnClickListener(){ public void onClick(DialogInterface dialog, int which){ if (which == 0){ // from camera Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File file = new File(Environment.getExternalStorageDirectory(), "picture_" + String.valueOf(System.currentTimeMillis()) + ".jpg"); mImageCaptureUri = Uri.fromFile(file); intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageCaptureUri); getActivity().startActivityForResult(intent, PICK_FROM_CAMERA); } else{ // pick from file Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); getActivity().startActivityForResult(Intent.createChooser(intent, "complete Action..."), PICK_FROM_FILE); } } }).create(): } } </code></pre> <p>Now, back in my <strong>Activity A</strong> the onActivityResult() Code looks like this:</p> <pre><code>protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode != RESULT_OK) return; if (requestCode == PICK_FROM_FILE){ mImageCaptureUri = data.getData(); path = getRealPathFromURI(mImageCaptureUri); //from Gallery if (path == null) path = mImageCaptureUri.getPath(); //from File Manager } else path = data.getData().getPath(); **// this is were the Code starts when picture was taken with camera and where the exceptions come from..** if(path != null){ // do something with image } } </code></pre> <p>This actually works perfect for the Image picked from the galery, but for some reason not for the picture taken by the camera. After the Camera loads i can take a photo and when i accept that photo for saving, the app crashes.</p> <p>The requestCodes are correct, but i've found out that the Uri send back from the Intent's data is always null, even if i put it seperately in the intent (i.e. putExtra, bundle). I really wonder why it works for galery, though :-/</p> <p>Maybe one of you guys know what i did wrong?</p> <p>P.S: I'm sorry for my bad english.</p> <p><strong>Update</strong>: i was asked for the crash info.</p> <pre><code>09-06 01:58:50.929: E/AndroidRuntime(6322): FATAL EXCEPTION: main 09-06 01:58:50.929: E/AndroidRuntime(6322): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=null} to activity {android.pack.coding/android.myactivitys.MainActivity}: java.lang.NullPointerException 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread.deliverResults(ActivityThread.java:2980) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3023) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread.access$1100(ActivityThread.java:123) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1177) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.os.Handler.dispatchMessage(Handler.java:99) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.os.Looper.loop(Looper.java:137) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread.main(ActivityThread.java:4424) 09-06 01:58:50.929: E/AndroidRuntime(6322): at java.lang.reflect.Method.invokeNative(Native Method) 09-06 01:58:50.929: E/AndroidRuntime(6322): at java.lang.reflect.Method.invoke(Method.java:511) 09-06 01:58:50.929: E/AndroidRuntime(6322): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 09-06 01:58:50.929: E/AndroidRuntime(6322): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 09-06 01:58:50.929: E/AndroidRuntime(6322): at dalvik.system.NativeStart.main(Native Method) 09-06 01:58:50.929: E/AndroidRuntime(6322): Caused by: java.lang.NullPointerException 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.myactivitys.MainActivity.onActivityResult(MainActivity.java:298) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.Activity.dispatchActivityResult(Activity.java:4649) 09-06 01:58:50.929: E/AndroidRuntime(6322): at android.app.ActivityThread.deliverResults(ActivityThread.java:2976) 09-06 01:58:50.929: E/AndroidRuntime(6322): ... 11 more </code></pre>
 

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