ActivityResultLauncher 的使用

Question

问题遇到的现象和发生背景

ActivityResultLauncher 使用跳转activity时无法收到回传

用代码块功能插入代码，请勿粘贴截图

package com.lanny.navigationdemo;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import androidx.activity.result.ActivityResult;
import androidx.activity.result.ActivityResultCallback;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContracts;
import androidx.appcompat.app.AppCompatActivity;

public class OneActivity extends AppCompatActivity {

    @SuppressLint("SetTextI18n")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_one);
        TextView tv = findViewById(R.id.tv);
        tv.setText("One");
        Button btn = findViewById(R.id.btn);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(OneActivity.this,TwoActivity.class);
                intent.putExtra("sss","sssss");
//                startActivityForResult(intent,1000);
                mResultLauncher.launch(intent);
            }
        });

    }
ActivityResultLauncher<Intent> mResultLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), new ActivityResultCallback<ActivityResult>() {
    @Override
    public void onActivityResult(ActivityResult result) {
        Log.e(getClass().getSimpleName(),"onActivityResult");
        if (result.getData() != null ) {
            Log.e(getClass().getSimpleName(),result.getData().getStringExtra("msg")+",resultCode:"+result.getResultCode());
        }
    }
});

//    @Override
//    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
//        super.onActivityResult(requestCode, resultCode, data);
//        Log.e(getClass().getSimpleName(),"onActivityResult()");
//    }
}

Intent intent = new Intent();
                intent.putExtra("msg", getClass().getSimpleName()+"发送finish");
                setResult(Activity.RESULT_OK, intent);
                finish();

运行结果及报错内容

无法收到回传，但是这两种方式跳转activity使用onActivityResult(int requestCode, int resultCode, @Nullable Intent data)都可以接收到，使用ActivityResultLaunche无法接收到

Answer 1

没解决，结题了