学步园

 

 

 

 

 

 

 

在send_main.xml中：

 

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="#000000"

    android:orientation="vertical"

    android:gravity="center_horizontal">

  <Button

      android:id="@+id/mybut"

      android:layout_marginTop="8dp"

      android:layout_width="180dp"

      android:layout_height="40dp"

      android:background="#3399ff"

      android:textColor="#ffffff"

      android:text="发送Intent的Activity程序"/>

  <TextView

      android:id="@+id/text"

      android:layout_marginTop="18dp"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:textSize="25dp"

      android:textColor="#ffffff"/>

</LinearLayout>

 

 

 

 

 

在receive_main.xml中：

 

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical"

  android:gravity="center_horizontal"

    android:background="#000000">

  <TextView

      android:id="@+id/show"

      android:layout_marginTop="8dp"

     android:gravity="center_horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:textSize="30dp"

      android:textColor="#ffffff"/>

  <Button

      android:id="@+id/retbut"

      android:layout_marginTop="18dp"

      android:layout_width="60dp"

      android:layout_height="40dp"

      android:textColor="#ffffff"

      android:background="#3399ff"

      android:text="返回数据"/>

</LinearLayout>

 

 

 

 

 

在Send.java中：

 

package com.li.intentproject;

 

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.support.v4.app.NavUtils;

 

public class Send extends Activity {

  private Button mybut = null;

  private TextView text = null;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        super.setContentView(R.layout.send_main);

        this.mybut = (Button)super.findViewById(R.id.mybut);

        this.text = (TextView)super.findViewById(R.id.text);

        this.mybut.setOnClickListener(new OnClickListenerImpl());

    }

    private class OnClickListenerImpl implements OnClickListener{

     public void onClick(View v) {

       Intent it = new Intent(Send.this,Receive.class); //要跳转的名称

       it.putExtra("myinfo","骐骥一跃，不能十步；"+"\n"+"驽马十驾，功在不舍。");     //要穿的值

       Send.this.startActivityForResult(it, 1);  //数据大于1就可以接收

     }

    }

  @Override

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

     switch(resultCode) {

     case RESULT_OK:

       Send.this.text.setText(data.getStringExtra("ret")) ;

       break ;

     case RESULT_CANCELED:

       Send.this.text.setText("操作取消。") ;

       break ;

     default:

       break;

     }

  }

}

 

 

 

 

 

在Receive.java中：

 

package com.li.intentproject;

 

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.support.v4.app.NavUtils;

 

public class Receive extends Activity {

  private TextView show = null;

  private Button retbut = null;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        super.setContentView(R.layout.receive_main);

        this.show = (TextView)super.findViewById(R.id.show);

        this.retbut = (Button)super.findViewById(R.id.retbut);

        Intent it = super.getIntent(); //取得当前的Intent

        String info = it.getStringExtra("myinfo"); //取得数据

        this.show.setText(info);

        this.retbut.setOnClickListener(new OnClickListenerImpl());

    }

    private class OnClickListenerImpl implements OnClickListener {

 

     public void onClick(View v) {

       Receive.this.getIntent().putExtra("ret", "不登高山，不知天之高也；" + "\n" + "不临深溪，不知地之厚也。") ;

       Receive.this.setResult(RESULT_OK, Receive.this.getIntent()) ;

       Receive.this.finish() ;

     }

  }

}

 

 

 

 

 

在AndroidManifest.xml中：

 

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.li.intentproject"

    android:versionCode="1"

    android:versionName="1.0" >

 

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="15" />

 

    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".Send"

            android:label="@string/title_activity_send" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

 

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <activity android:name="Receive">

        </activity>

    </application>

 

</manifest>