当相机活动返回时，承载这个片段的活动有它的onActivityResult被调用。
我的片段开始一个活动的结果与意图发送给相机拍照。图片应用程序加载正常，拍摄照片并返回。然而onActivityResult从未被击中。我设置了断点，但什么都没有触发。一个片段可以有onActivityResult吗?我想是的，因为它是一个已提供的函数。为什么这个没有被触发?
ImageView myImage = (ImageView)inflatedView.findViewById(R.id.image);
myImage.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, 1888);
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if( requestCode == 1888 ) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
((ImageView)inflatedView.findViewById(R.id.image)).setImageBitmap(photo);
}
}
You can simply override BaseActivity onActivityResult on fragment baseActivity.startActivityForResult .
On BaseActivity add interface and override onActivityResult.
private OnBaseActivityResult baseActivityResult;
public static final int BASE_RESULT_RCODE = 111;
public interface OnBaseActivityResult{
void onBaseActivityResult(int requestCode, int resultCode, Intent data);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(getBaseActivityResult() !=null && requestCode == BASE_RESULT_RCODE){
getBaseActivityResult().onBaseActivityResult(requestCode, resultCode, data);
setBaseActivityResult(null);
}
On Fragment implements OnBaseActivityResult
@Override
public void onBaseActivityResult(int requestCode, int resultCode, Intent data) {
Log.d("RQ","OnBaseActivityResult");
if (data != null) {
Log.d("RQ","OnBaseActivityResult + Data");
Bundle arguments = data.getExtras();
}
}
这个变通方法会奏效。
添加这个
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, 1);
}
当你将替换你的代码与上述代码，然后自动你的这个
public void onActivityResult(int requestCode, int resultCode,
@Nullable Intent data){}
方法将开始工作
//No Need to write this code in onclick method
Intent intent=new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT)
startActivityForResult(intent,1);
Toast.makeText(getContext(), "image"+intent, Toast.LENGTH_SHORT).show();
最简单的方法之一是从你的片段开始一个活动。
startActivity(ActivityName);
然后，添加你调用startActivityForResult(intent，"1");在你的Activity中添加onActivityResult
startActivityForResult(intent,"1");
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.dualPane);
fragment.onActivityResult(requestCode, resultCode, data);
// perform other activity result like fetching from Uris or handling cursors
finish(); // finish the activity will get to back to your fragment.
}
选项1:
如果你从片段调用startActivityForResult()，那么你应该调用startActivityForResult()，而不是getActivity().startActivityForResult()，因为它将导致片段onActivityResult()。
如果你不确定你在哪里调用startActivityForResult()和你将如何调用方法。
选项2:
由于Activity获得onActivityResult()的结果，您将需要覆盖活动的onActivityResult()并调用super.onActivityResult()来传播到未处理的结果代码或所有的各自片段。
如果以上两个选项都不管用，那么请参考选项3，因为它肯定会起作用。
选项3:
从fragment显式调用onActivityResult函数如下所示。
在父Activity类中，重写onActivityResult()方法，甚至在Fragment类中重写同样的方法，并像下面的代码一样调用。
在父类中:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.dualPane);
fragment.onActivityResult(requestCode, resultCode, data);
}
在儿童班:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// In fragment class callback
}
Kotlin版本(在你的活动onActivityResult()中)
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
//add following lines in your activity
if(supportFragmentManager?.fragments!=null && supportFragmentManager?.fragments!!.size>0)
for (i in 0..supportFragmentManager?.fragments!!.size-1) {
val fragment= supportFragmentManager?.fragments!!.get(i)
fragment.onActivityResult(requestCode, resultCode, data)
}
}
