在nexus 5中使用Android相机捕获图像后的空指针

时间:2014-02-13 11:14:47

标签: android

在我的应用程序中,我使用Android设备相机来捕获我的图像。在某些设备上它运行正常,但不是全部,我只是测试了LG nexus 5 E960,在我捕获图像后它总是结束崩溃而无法保存结果这是我的代码:

  Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
  startActivityForResult(cameraIntent, 1);



  protected void onActivityResult(int requestCode, int resultCode,
        Intent returnimage) {
    super.onActivityResult(requestCode, resultCode, returnimage);

    switch (requestCode) {
    case 1:
        if (resultCode == RESULT_OK) {

            Uri selectedImage = returnimage.getData();

            String stringUri;
            stringUri = selectedImage.toString();
            Intent i1 = new Intent(MainActivity.this, Secondpage.class);
             i1.putExtra("Stringuri",stringUri );
            startActivity(i1);


        }
        break;

我的logcat是:

     java.lang.RuntimeException: Failure delivering result ResultInfo{who=null,
     request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity 
     {com.photostikers/com.photostikers.MainActivity}: java.lang.NullPointerException
     02-13 12:27:54.315: E/AndroidRuntime(28759):  at 
     android.app.ActivityThread.deliverResults(ActivityThread.java:3365)
     02-13 12:27:54.315: E/AndroidRuntime(28759):  at  
     android.app.ActivityThread.performResumeActivity(ActivityThread.java:2775)
     02-13 12:27:54.315: E/AndroidRuntime(28759):  ... 12 more
     02-13 12:27:54.315: E/AndroidRuntime(28759): Caused by: java.lang.NullPointerException
     02-13 12:27:54.315: E/AndroidRuntime(28759):  at 
     com.photostikers.MainActivity.onActivityResult(MainActivity.java:335)
     02-13 12:27:54.315: E/AndroidRuntime(28759):  at 
     android.app.Activity.dispatchActivityResult(Activity.java:5423)
     02-13 12:27:54.315: E/AndroidRuntime(28759):  at 
     android.app.ActivityThread.deliverResults(ActivityThread.java:3361)
     02-13 12:27:54.315: E/AndroidRuntime(28759):  ... 13 more

2 个答案:

答案 0 :(得分:3)

使用

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
        Bundle extras = data.getExtras();
        Bitmap imageBitmap = (Bitmap) extras.get("data");
        Intent i1 = new Intent(MainActivity.this, Secondpage.class);
        i1.putExtra("bitmap",imageBitmap );
        startActivity(i1);
    }
}

并在Secondpage Activity

获取图像

Bitmap bitImage = getIntent().getParcelableExtra("bitmap");
your_image+_view.setImageBitmap(bitImage);

浏览{+ 3}}

的Android开发人员文档

答案 1 :(得分:1)

它成为nexus5中的常见问题。

而不是:

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1);

试试这个:

Uri mPhotoUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 
        new ContentValues());
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, mPhotoUri);
startActivityForResult(intent,CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE_CONTENT_RESOLVER);

看看这个: http://cssmay.com/question/tag/tag-camera,我认为它可以帮到你很多。