在我的应用程序中,我使用的是android设备相机来捕获我的图像。在某些设备上它可以正常工作,但不是全部,我只是测试了LG nexus 5 E960,在捕获图像后,它总是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

最佳答案

使用方式

@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

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

浏览Get the Thumbnail的Android开发者文档

关于android - 在nexus 5中使用android摄像头捕获图像后为空指针,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/21752602/

10-12 07:37
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