好的,这里是我要发送的意图。
(注:意图指在IT技术中的特定操作或功能)
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
startActivityForResult(intent, REQUEST_CODE);
然后在onActivityResult中,我这样做:
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.i("Intent name:",data.toString());
if (requestCode == REQUEST_CODE){
if (resultCode == Activity.RESULT_OK){
Toast.makeText(this, "Image saved to \n" + fileUri.toString() , Toast.LENGTH_LONG).show();
Toast.makeText(this, "Result Code: " + resultCode , Toast.LENGTH_LONG).show();
//Bitmap mBitMap = BitmapFactory.decodeFile(data.getData().toString());
//imageView.setImageBitmap(mBitMap);
}
else if (resultCode == RESULT_CANCELED){
Toast.makeText(this, "Capture Cancelled", Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(this, "Capture failed", Toast.LENGTH_LONG).show();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
LogCat显示在标有“Image Saved”的那一行出现了NullPointerException。还有这个:
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=100, result=-1, data=null}
无论我尝试使用类的data对象还是fileUri字段,都会发生这种情况。为什么data返回null?即使我使用类的字段,为什么仍然会出现相同的错误?