两个activity之间通过onActivityResult来取得数据

调用方 Activity：

public void callActivity {

// 将数据包装并传入被调方 Activity

Intent intent = new Intent();

intent.setClass(this, TestActivity2.class);

Bundle bundle = new Bundle();

bundle.putString("data", "data");

intent.putExtras(bundle);

this.startActivityForResult(intent, 0);

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

  // 接收被调方 Activity 返回的数据

switch (resultCode) {

case RESULT_OK:

String data = data.getExtras().getString("data");

break;

}

}

被调方 Activity：

public void returnData() {

Intent in = this.getIntent();

Bundle bn = in.getExtras();

bn.putString("data", "return data");

in.putExtras(bn);

this.setResult(RESULT_OK, in);

}