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);
}
}
如果你不知道活动中的片段，只需要枚举它们并发送活动结果参数:
/ / Java
// In your activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
for (Fragment fragment : getSupportFragmentManager().getFragments()) {
fragment.onActivityResult(requestCode, resultCode, data);
}
}
科特林
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
for (fragment in supportFragmentManager.fragments) {
fragment.onActivityResult(requestCode, resultCode, data)
}
}
我也面临着同样的问题，一旦我把这段代码从一个片段转移到一个实用工具类，将parentActivity作为参数传递，
Intent intent = new Intent(parentActivity, CameraCaptureActivity.class);
parentActivity.startActivityForResult(intent,requestCode);
然后我没有得到任何值在onActivityResult方法的片段，
之后，我把参数改为Fragment，所以修改后的method定义是这样的，
Intent intent = new Intent(fragment.getContext(), CameraCaptureActivity.class);
fragment.startActivityForResult(intent,requestCode);
在那之后，我能够在片段上的onActivityResult中获得值
只需使用下面的代码片段。
@Override
public void onOtherButtonClick(ActionSheet actionSheet, int index) {
if (index == 1)
{
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent,
"Select Picture"), 1);
}
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 1) {
if (requestCode == 1) {
Uri selectedImageUri = data.getData();
//selectedImagePath = getPath(selectedImageUri);
}
}
}
onActivityResult将调用而不调用它的父类。
对于那些使用Android导航组件的人来说，Kotlin版本的灵感来自Mohit Mehta的答案
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
supportFragmentManager.primaryNavigationFragment?.childFragmentManager?.fragments?.forEach { fragment ->
fragment.onActivityResult(requestCode, resultCode, data)
}
}
如果你不知道活动中的片段，只需要枚举它们并发送活动结果参数:
/ / Java
// In your activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
for (Fragment fragment : getSupportFragmentManager().getFragments()) {
fragment.onActivityResult(requestCode, resultCode, data);
}
}
科特林
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
for (fragment in supportFragmentManager.fragments) {
fragment.onActivityResult(requestCode, resultCode, data)
}
}
