Activity和Activity带参数跳转 带参数返回

//-------------------------Activity1---------------------------------- button.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View v) {                 Intent intent = new Intent(MainActivity.this, testActivity.class);                 intent.putExtra("T", "带参数传送");                 startActivityForResult(intent, 1);             }         });     }     @Override     protected void onActivityResult(int requestCode, int resultCode, Intent data) {         super.onActivityResult(requestCode, resultCode, data);         text.setText("" + data.getStringExtra("T"));     } //-------------------------Activity2---------------------------------- Intent intent = getIntent();         text.setText("" + intent.getStringExtra("T"));     }     @Override     public void onBackPressed() {         Intent intent = new Intent();         intent.putExtra("T", "带参数返回");         setResult(2, intent);         finish();     }