我正在捕獲圖像,然後在我的片段中的ImageView中顯示它。我通過網絡搜索這個,但我仍然無法完成。 以下是我正在做的事情。如何在片段中捕獲圖像Android
btnCaptureImg.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1888);
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.e("LOG", ""+requestCode);
if (requestCode == 1888 && resultCode == Activity.RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
imageView.setImageBitmap(photo);
}
super.onActivityResult(requestCode, resultCode, data);
}
Logcat說只有1888,但imageView沒有加載圖像。
我也試過這個
btnCaptureImg.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
File folder = new File(Environment.getExternalStorageDirectory().toString()+"/ImagesFolder/");
folder.mkdirs();
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
resultingFile = new File(folder.toString() + "/image.jpg");
Uri uriSavedImage=Uri.fromFile(resultingFile);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
startActivityForResult(cameraIntent, 1888);
}
});
但它拋出異常:
E/AndroidRuntime(4824): java.lang.RuntimeException: Unable to resume activity {com.myapp.android/com.myapp.android.MyHomeActivity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=264032, result=-1, data=null} to activity {com.myapp.android/com.myapp.android.MyHomeActivity}: java.lang.NullPointerException
E/AndroidRuntime(4824): at com.myapp.android.MyFragment.onActivityResult(MyFragment.java:300)
考慮到'onActivityResult'不是在'Fragment'中調用的,而是在'Activity'中調用的。 – 2014-09-03 08:57:51
那麼我怎樣才能實現我的目標,即拍攝照片並使用片段將其顯示到ImageView?可能嗎? – kads 2014-09-03 09:17:02