我的班级里面有这样的东西:
public class Main extends Activity {
private static final int CAMERA_PICK = 1;
private static final int GALLERY_PICK = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button photo = (Button) findViewById(R.id.button);
photo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
createDialog();
}
});
private void createdialog(Activity activity) {
final CharSequence[] items = { "Take shot", "Take from gallery" };
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Get image");
builder.setItems(items, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
if (item == 0) {
takePhoto();
}
if (item == 1) {
choosePhoto();
}
}
});
AlertDialog alert = builder.create();
alert.show();
}
protected void choosePhoto() {
// not necessary;
}
protected void takePhoto() {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
mUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "myPic"
+ String.valueOf(System.currentTimeMillis()) + ".jpg"));
cameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mUri);
try {
cameraIntent.putExtra("return-data", true);
startActivityForResult(cameraIntent, CAMERA_PICK);
//Doing something with the picture here;
}
} catch (Exception e) {
e.printStackTrace();
}
}
// TODO
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (resultCode) {
case CAMERA_PICK:
break;
case RESULT_OK:
Toast.makeText(Main.this, "Photo selected", Toast.LENGTH_SHORT).show();
break;
}
}
}
正如您所看到的,我正在尝试使用手机的相机拍照并稍后在图像视图中使用它。事情是我无法触发方法 onActivityResult(...)!当我做startActivityForResult(cameraIntent,CAMERA_PICK);我无法操纵RESULT_OK,RESULT_CANCEL甚至是我定义为CAMERA_PICK的方法。 onActivityResult(...)应该是完美的,我不明白我做错了什么!
任何帮助都会得到帮助,谢谢。
我已经发现了这个问题。我正在使用一个活动小组和我 没有意识到onActivityResult()触发了第一个 其中一项活动......
答案 0 :(得分:1)
在某些真实设备上从图库中选择照片时,我遇到了同样的问题。经过大量搜索后,我找到了this。指示对话框的onActivityResult可能是tirggered而不是获取返回值的活动。所有设备上都不会出现此问题。