Tired of writing onActivityResult? Don’t worry, the transparent Fragment will help you

Although fragment can kill you, it is still useful to use it as an auxiliary function without writing a view.

RxPermissionsFragment: github.com/hss01248/St…

The base class

public BaseTransFragment(FragmentActivity activity, Bean bean) {
        this.activity = activity;
        this.bean = bean;
        startFragmentTransaction();
    }


    private void startFragmentTransaction() {
        try {
            FragmentManager fragmentManager = activity.getSupportFragmentManager();
                fragmentManager.beginTransaction()
                        .add(this, UUID.randomUUID().toString())
                        .commitNowAllowingStateLoss();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setRetainInstance(true);
        if(debugable){
            Log.d("frag"."onCreate:"+this);
        }
    }
    
     public void finish(){ try { getActivity().getSupportFragmentManager().beginTransaction().remove(this).commitAllowingStateLoss(); }catch (Throwable throwable){ throwable.printStackTrace(); }}Copy the code

Example:

OnactivityResult processing:

class InAppResultFragment extends BaseTransFragment<Intent> {
    public InAppResultFragment(FragmentActivity activity, Intent intent) {
        super(activity, intent);
    }
    TheActivityListener listener;
    public void startActivityForResult(TheActivityListener listener){
        try {
            this.listener = listener;
            startActivityForResult(bean,new Random().nextInt(589));
        }catch (Throwable e){
            listener.onActivityNotFound(e);
            if(StartActivityUtil.debugable){
                e.printStackTrace();
            }
        }
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (StartActivityUtil.debugable) {
            Log.i("onActivityResult"."req:" + requestCode + ",result:" + resultCode + ",data:" + data);
        }
        listener.onActivityResult(requestCode,resultCode,data);
        finish();

    }
}

使用:
  new InAppResultFragment(activity,intent).startActivityForResult(listener);
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Here’s a utility class that starts an activity to get the result:

Start the in-app page and you get the onActivityCreated and onActivityResult callbacks where onActivityCreated is implemented through the registration lifecycle on the application

StartActivityUtil.startActivity(this, ActivityDemo2.class, null,true, new TheActivityListener<ActivityDemo2>() { @Override public void onActivityCreated(@NonNull ActivityDemo2 activity, @nullable Bundle savedInstanceState) {// Set the data here and take it directly after the super.oncreate () of the specific activityOnCreate() method activityOnCreate();  Toast.makeText(activity,"Activity onCreate callback", Toast.LENGTH_LONG).show();
            }

            @Override
            protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
                super.onActivityResult(requestCode, resultCode, data);
                Toast.makeText(MainActivity.this, "Activity onActivityResult callback", Toast.LENGTH_LONG).show(); }});Copy the code

Start the third party app and receive/test results on return:

StartActivityUtil.goOutAppForResult(this, intent, new OutActivityResultListener() {


    @Override
    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        boolean hasPermission =   NotificationManagerCompat.from(MainActivity.this).areNotificationsEnabled();
        Toast.makeText(MainActivity.this,"Notification bar permission :"+hasPermission,Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onActivityNotFound(Throwable e) {

    }
});
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Example 2. Photo/image select-Clip-Compress the entire process, encapsulated into a tool method:

TakePhotoUtil.startPickOne(this, false, new TakeOnePhotoListener() {
            @Override
            public void onSuccess(String s) {
               showImg(filePath);
            }

            @Override
            public void onFail(String path, String msg) {
                MyToast.errorBigL(s1);
            }

            @Override
            public void onCancel() {}});Copy the code