intent.getData（）在我想更改图像时为null查看

Question

我想单击我的imageView时更改我的头像。

代码：

ivAvatar.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 

      final CharSequence[] items = {"Prendre une photo", 
        "Choisir une image", "Annuler"}; 

      AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
        getActivity()); 

      // set title 
      alertDialogBuilder.setTitle("Avatar :"); 

      // set dialog message 
      alertDialogBuilder.setCancelable(false).setItems(items, 
        new DialogInterface.OnClickListener() { 

       @Override 
       public void onClick(DialogInterface dialog, int item) { 

        if (item == 0) { 
         ContentValues values = new ContentValues(); 
         values.put(MediaStore.Images.Media.TITLE, 
           ""); 
         mCapturedImageURI = getActivity() 
           .getContentResolver() 
           .insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 
             values); 

         Intent intent = new Intent(
           MediaStore.ACTION_IMAGE_CAPTURE); 

         intent.putExtra(MediaStore.EXTRA_OUTPUT, 
           mCapturedImageURI); 
         intent.putExtra("crop", "true"); 
         intent.putExtra("aspectX", 170); 
         intent.putExtra("aspectY", 170); 
         intent.putExtra("outputX", 5000); 
         intent.putExtra("outputY", 5000); 
         startActivityForResult(Intent 
           .createChooser(intent, 
             "Appareil photo"), 
             CAPTURE_PICTURE); 
        } 

        if (item == 1) { 
         Intent intent = new Intent(
           Intent.ACTION_PICK, 
           android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI); 

         intent.setType("image/*"); 
         intent.putExtra("crop", "true"); 
         intent.putExtra("aspectX", 170); 
         intent.putExtra("aspectY", 170); 
         intent.putExtra("outputX", 5000); 
         intent.putExtra("outputY", 5000); 
         startActivityForResult(Intent 
           .createChooser(intent, 
             "Choisir une application"), 
             SELECT_PICTURE); 
        } 

        if (item == 2) { 
         dialog.cancel(); 
        } 

       } 
      }); 

      // create alert dialog 
      AlertDialog alertDialog = alertDialogBuilder.create(); 

      // afficher 
      alertDialogBuilder.show(); 

     } 
    }); 

public void onActivityResult(int requestCode, int resultCode, Intent data) { 

    Log.i("TAG", data + " : data"); 
    Log.i("TAG", data.getData() + " : data.getData()"); 
    Log.i("TAG", getActivity().getApplicationContext() + " : context"); 

    if (resultCode == Activity.RESULT_OK) { 
     if (requestCode == CAPTURE_PICTURE) { 

      try { 
       ivAvatar.setImageBitmap(decodeUri(getActivity().getApplicationContext(), 
         mCapturedImageURI, 1000)); 
      } catch (FileNotFoundException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

     } 

     if (requestCode == SELECT_PICTURE) { 

      Uri selectedimg = data.getData(); 
      try { 
       ivAvatar.setImageBitmap(decodeUri(getActivity().getApplicationContext(), selectedimg, 170)); 
      } catch (FileNotFoundException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

     } 
    } 
} 

public static Bitmap decodeUri(Context c, Uri uri, final int requiredSize) 
     throws FileNotFoundException { 
    BitmapFactory.Options o = new BitmapFactory.Options(); 
    o.inJustDecodeBounds = true; 
    BitmapFactory.decodeStream(c.getContentResolver().openInputStream(uri), 
      null, o); 

    int widthTmp = o.outWidth, heightTmp = o.outHeight; 
    int scale = 1; 

    while (true) { 
     if (widthTmp/2 < requiredSize || heightTmp/2 < requiredSize) { 
      break; 
     } 
     widthTmp /= 2; 
     heightTmp /= 2; 
     scale *= 2; 
    } 

    BitmapFactory.Options o2 = new BitmapFactory.Options(); 
    o2.inSampleSize = scale; 
    return BitmapFactory.decodeStream(c.getContentResolver() 
      .openInputStream(uri), null, o2); 
} 

而且我的错误：

04-01 14:46:54.139: E/AndroidRuntime(11422): FATAL EXCEPTION: main 
04-01 14:46:54.139: E/AndroidRuntime(11422): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=65537, result=-1, data=Intent { (has extras) }} to activity {fr.allbrary/fr.allbrary.activity.ActivityIdentification}: java.lang.NullPointerException 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread.deliverResults(ActivityThread.java:3406) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3449) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread.access$1200(ActivityThread.java:150) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1328) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.os.Handler.dispatchMessage(Handler.java:99) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.os.Looper.loop(Looper.java:176) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread.main(ActivityThread.java:5279) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at java.lang.reflect.Method.invokeNative(Native Method) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at java.lang.reflect.Method.invoke(Method.java:511) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at dalvik.system.NativeStart.main(Native Method) 
04-01 14:46:54.139: E/AndroidRuntime(11422): Caused by: java.lang.NullPointerException 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.content.ContentResolver.openInputStream(ContentResolver.java:436) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at fr.allbrary.fragment.FragmentInscription.decodeUri(FragmentInscription.java:556) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at fr.allbrary.fragment.FragmentInscription.onActivityResult(FragmentInscription.java:530) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:166) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.Activity.dispatchActivityResult(Activity.java:5456) 
04-01 14:46:54.139: E/AndroidRuntime(11422): at android.app.ActivityThread.deliverResults(ActivityThread.java:3402) 
04-01 14:46:54.139: E/AndroidRuntime(11422): ... 11 more 

为什么data.getData() == null？

Answer 1

试用Nexus 4和Kitkat。如果我选择标准画廊，data.getData（）对我也是null。对于QuickPic或其他图库getData（）返回正确的uri。

如果的getData（）为null试试这个：

 Bundle bundle = data.getExtras(); 
    Bitmap bitmap = (Bitmap) bundle.get("data"); 

有与密钥包另一个项目 “裁剪-RECT”。