1 package activityReturnData;
 2
 3
 4
 5
 6 import com.example.activityReturnData.R;
 7
 8 import android.app.Activity;
 9 import android.content.Intent;
10 import android.os.Bundle;
11 import android.view.View;
12 import android.view.View.OnClickListener;
13 import android.widget.Button;
14 import android.widget.EditText;
15
16
17
18 public class MainActivity extends Activity{
19     private Button btn_chooseContacter;//创建一个button对象
20     private EditText et_phoneNumber;
21      protected void onCreate(Bundle savedInstanceState) {
22             super.onCreate(savedInstanceState);//父类操作
23             setContentView(R.layout.activity_main);//引入名为activity_main的界面
24             btn_chooseContacter=(Button) findViewById(R.id.btn_chooseContacter);//找id为btn_openActivity的button
25             et_phoneNumber=(EditText) findViewById(R.id.et_phoneNum);
26             btn_chooseContacter.setOnClickListener(new OnClickListener() {//设置button点击监听
27
28                 @Override
29                 public void onClick(View v) {//onclick事件
30                     // TODO Auto-generated method stub
31                     Intent intent=new Intent(MainActivity.this,Activity01.class);//初始化intent
32                     //请求码：resultCode
33                     startActivityForResult(intent, 0);
34                 }
35             });
36         }
37     /*
38      * Activity01调用完finish()方法销毁之后，就会调用MainActivity的onActivityResult方法
39      * 因为Activity01完成后会返回调用它的方法
40      *  (non-Javadoc)
41      * @see android.app.Activity#onActivityResult(int, int, android.content.Intent)
42      */
43      @Override
44     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
45         // TODO Auto-generated method stub
46         super.onActivityResult(requestCode, resultCode, data);
47         //就是如果没有传值回来的情况，直接return就ok了
48         if(data==null) return;
49         Bundle bundle=data.getExtras();
50         String phoneNumber=bundle.getString("phoneNumber");
51         et_phoneNumber.setText(phoneNumber);
52     }
53 }

 1 package activityReturnData;
 2
 3
 4 import com.example.activityReturnData.R;
 5
 6 import android.app.Activity;
 7 import android.content.Intent;
 8 import android.os.Bundle;
 9 import android.view.View;
10 import android.view.View.OnClickListener;
11 import android.widget.TextView;
12
13 public class Activity01 extends Activity{
14     private TextView tv_phoneNum;
15     @Override
16     protected void onCreate(Bundle savedInstanceState) {
17         // TODO Auto-generated method stub
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity01);
20         tv_phoneNum=(TextView) findViewById(R.id.tv_phoneNum);
21         tv_phoneNum.setOnClickListener(new OnClickListener() {
22
23             @Override
24             public void onClick(View v) {
25                 // TODO Auto-generated method stub
26                 Intent intent=new Intent();
27                 intent.putExtra("phoneNumber",tv_phoneNum.getText());
28                 //resultCode,结果码
29                 setResult(0, intent);
30                 finish();
31             }
32         });
33     }
34 }

 1 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 2     package="com.example.activityReturnData"
 3     android:versionCode="1"
 4     android:versionName="1.0" >
 5
 6     <uses-sdk
 7         android:minSdkVersion="8"
 8         android:targetSdkVersion="19" />
 9
10     <application
11         android:allowBackup="true"
12         android:icon="@drawable/ic_launcher"
13         android:label="@string/app_name"
14         android:theme="@style/AppTheme" >
15         <activity
16             android:name="activityReturnData.MainActivity"
17             android:label="@string/app_name" >
18             <intent-filter>
19                 <action android:name="android.intent.action.MAIN" />
20
21                 <category android:name="android.intent.category.LAUNCHER" />
22             </intent-filter>
23         </activity>
24         <activity android:name="activityReturnData.Activity01" android:exported="true"></activity>
25     </application>
26
27 </manifest>