java OnActivityResult在片段中不起作用。如何在我的代码中修复此问题?
因此,我正在编写这个应用程序,它需要从手机中拾取个人资料图片,裁剪、压缩并将图片保存到内存中的自定义位置,还需要将压缩后的位图设置为圆形图像视图中的预览。所有这些都在一个碎片里。但是我的onActivityResult在片段中根本没有被调用
这是我的密码:
查看页面雷达。类
public class ViewPagerAdapter extends FragmentPagerAdapter {
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
switch (position)
{
case 0:
return new ConfigurationFragment1();
case 1:
return new ConfigurationFragment2();
}
return null;
}
@Override
public int getCount() {
return 2;
}
}
配置碎片2。类
public class ConfigurationFragment2 extends Fragment {
CircularImageView profilePicker;
EditText user1NameInput;
Uri profileImageURI;
Bitmap compressedImageFile;
Boolean profileImageSet = false;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.fragment_configuration_2, container, false);
profilePicker = rootView.findViewById(R.id.configuration_profile_picker);
user1NameInput = rootView.findViewById(R.id.configuration_name_1);
profilePicker.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
Toast.makeText(getActivity(), "Permission Denied", Toast.LENGTH_LONG).show();
ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
}
else if(ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
Toast.makeText(getActivity(), "Permission Denied", Toast.LENGTH_LONG).show();
ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
}
else {
chooseProfilePicture();
}
}
});
return rootView;
}
public void chooseProfilePicture(){
CropImage.activity().setGuidelines(CropImageView.Guidelines.ON).setAspectRatio(1,1).start(getActivity());
}
@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == Activity.RESULT_OK)
{
assert result != null;
profileImageURI = result.getUri();
File thumbnailURI = new File(Objects.requireNonNull(profileImageURI.getPath()));
try
{
compressedImageFile = new Compressor(getActivity())
.setMaxHeight(500)
.setMaxWidth(500)
.setQuality(100)
.compressToBitmap(thumbnailURI);
}
catch (IOException e)
{
e.printStackTrace();
}
profilePicker.setImageBitmap(compressedImageFile);
String profilePictureFolder = "/com.testapp.app/";
String profilePictureUser1Name = "profilePicUser1.jpg";
String profilePictureUser1Path = Environment.getExternalStorageDirectory().toString() + profilePictureFolder + profilePictureUser1Name;
File imagePath = new File(profilePictureUser1Path);
FileOutputStream fos;
try {
if (!imagePath.exists()) {
File wallpaperDirectory = new File(Environment.getExternalStorageDirectory().toString() + profilePictureFolder);
wallpaperDirectory.mkdirs();
}
File file = new File(new File(Environment.getExternalStorageDirectory().toString() + profilePictureFolder), profilePictureUser1Name);
if (file.exists()) {
file.delete();
}
fos = new FileOutputStream(imagePath);
compressedImageFile.compress(Bitmap.CompressFormat.JPEG, 85, fos);
fos.flush();
fos.close();
profileImageSet = true;
} catch (FileNotFoundException e) {
Log.e("eRROR", e.getMessage(), e);
} catch (IOException e) {
e.printStackTrace();
}
}
else if(resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE)
{
assert result != null;
Exception error = result.getError();
}
}
}
}
和主要活动。类
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_configuration);
setTheme(R.style.AppThemeBlueStatusDarkText);
objectInstance();
viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(viewPagerAdapter);
viewPager.setSwipeable(false);
viewPager.setCurrentItem(currentPage);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
}
onActivityResult代码在正常的活动中完美地工作,但在这个片段中却没有。我该如何解决我的问题?谢谢大家!
# 1 楼答案
我认为问题在于:
{a1}显示以下内容:
这意味着
start()
方法的Activity
参数将用于启动CropImage活动,因此将是接收结果的地方。相反,您应该使用库公开的另一个start()
方法:这意味着您将使用以下代码:
现在,结果应该传递给你的片段
# 2 楼答案