[英]getting null data on my activityresult
i have this code, i want to take a picture and then onactivityresult take the data from the intent and make transformr it to a bitmap to display a little preview on the activity but data is null i dont know why. 我有这段代码,我想拍照,然后onactivityresult从意图中获取数据,并将其转换为位图,以显示活动的一些预览,但数据为空,我不知道为什么。
cameraButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// create Intent to take a picture and return control to the calling application
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
});
then on the activity result: 然后在活动结果上:
protected void onActivityResult(int requestCode, int resultCode,
Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch (requestCode) {
case CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE:
if (resultCode == RESULT_OK) {
data = imageReturnedIntent.getData();
InputStream stream;
try {
stream = super.getContentResolver().openInputStream(data);
bitmap = BitmapFactory.decodeStream(stream);
stream.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
imageView.setImageBitmap(bitmap);
}
}
try like 尝试像
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setImageBitmap(imageBitmap);
}
}
For more details go through Take a Photo with the Camera 有关更多详细信息,请通过相机拍摄照片。
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