CODEWITHSUNDEEP
androidandroid-intentandroid-camera-intent
Christoph Mühlmann
Christoph Mühlmann

Reputation: 397

MediaStore Intent doesn't return anything

I'm developing an android app for data collection. This app should have the possibility to take photos, videos, audio-content by using the usual intent-mechanisms.

To start the image-capture intent is no problem. It is shown, and I can take a photo, which is saved on the sdcard. But in onActivityResult() the expected values aren't returned, if "Video" or "Photo" are choosed. resultCode is != RESULT_OK, and data.getData() returns null. Getting "Audio" seems to be no problem...

There are many tutorials and howtos on the web, but I didn't find that difference, which may result in the behavior of my app...

What is wrong?

For debugging, I'm using a Motorola Defy with Android 2.2, which is connected via USB. The USB-mode is set no "none", so my computer doesn't lock the sd-card.

Edit 1:

As a first try, I added these lines into AndroidManifest.xml, but there's no difference:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>

Edit 2:

Adding super.onActivityResult(requestCode, resultCode, data); to onActivityResult()in the activity made no difference

Edit 3:

Tried to change the line 

toDo.putExtra(MediaStore.EXTRA_OUTPUT, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

to 

toDo.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File("/sdcard/image.jpg")));

but this doesn't work either. The image is saved at the given uri-position, but the app crashes, when it returns to my activity.

Here's the stack (translated from german locale to english):

Thread [<1> main] (Paused (Exception RuntimeException)) 
    ActivityThread.deliverResults(ActivityThread$ActivityRecord, List) Line: 3605   
    ActivityThread.handleSendResult(ActivityThread$ResultData) Line: 3647   
    ActivityThread.access$3000(ActivityThread, ActivityThread$ResultData) Line: 129 
    ActivityThread$ResultData(ActivityThread$H).handleMessage(Message) Line: 2147   
    ActivityThread$H(Handler).dispatchMessage(Message) Line: 99 
    Looper.loop() Line: 143 
    ActivityThread.main(String[]) Line: 4717    
    Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) Line: not available [native method]  
    Method.invoke(Object, Object...) Line: 521  
    ZygoteInit$MethodAndArgsCaller.run() Line: 860  
    ZygoteInit.main(String[]) Line: 618 
    NativeStart.main(String[]) Line: not available [native method]

Edit 4:

Reverted Edit 3.

Had a look on the return-values of onActivityResult again. In the case of video or image/photo this is both right: requestCode==0x100 or resultCode==0x101, but resultCode==0 and data==null.

Code:

This is my code:

package test.mediastore;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class StartActivity extends Activity {

    private Button ImageCaptureButton = null;
    private Button VideoCaptureButton = null;
    private Button AudioCaptureButton = null;
    private TextView InfoTextView = null;

    final static int IMAGE_CAPTURE = 0x100;
    final static int VIDEO_CAPTURE = 0x101;
    final static int AUDIO_CAPTURE = 0x102;


        /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ImageCaptureButton = (Button)findViewById(R.id.ImageCaptureButton);
        ImageCaptureButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Intent toDo = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                toDo.putExtra(MediaStore.EXTRA_OUTPUT, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 
                startActivityForResult(toDo, IMAGE_CAPTURE);
            }
        });
        VideoCaptureButton = (Button)findViewById(R.id.VideoCaptureButton);
        VideoCaptureButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Intent toDo = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
                toDo.putExtra(MediaStore.EXTRA_OUTPUT, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 
                startActivityForResult(toDo, VIDEO_CAPTURE);
            }
        });
        AudioCaptureButton = (Button)findViewById(R.id.AudioCaptureButton);
        AudioCaptureButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Intent toDo = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
                toDo.putExtra(MediaStore.EXTRA_OUTPUT, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI); 
                startActivityForResult(toDo, AUDIO_CAPTURE);
            }
        });

        InfoTextView = (TextView)findViewById(R.id.InfoTextView);    
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data); // Edit 2 - made no difference
        if (resultCode == RESULT_OK) {
            switch (requestCode) {
            case IMAGE_CAPTURE:
                InfoTextView.setText("Image");
                break;
            case VIDEO_CAPTURE:
                InfoTextView.setText("Video");
                break;
            case AUDIO_CAPTURE:
                InfoTextView.setText("Audio");
                break;
            default:
                InfoTextView.setText("None");
            }
        } else {
            InfoTextView.setText("resultCode != RESULT_OK");
        }
    }
}

Upvotes: 2

Views: 3376

Answers (1)

Tolga E
Tolga E

Reputation: 12678

From your edit3, you need to do this line; 

toDo.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File("/sdcard/image.jpg")));

But you actually need to save that File object into a instance variable, then on activity result, if the result is ok, then you just use the File output to access the image/video and so on. If you want, you can insert this into the mediaStore manually on activity result (easily found by googling)

Upvotes: 1

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