Android组件的通讯——Intent

显示网页
Uri uri = Uri.parse("http://www.google.com.hk/");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);  
                            
       
显示地图 
Uri uri = Uri.parse("geo:38.899533,-77.036476");
Intent intent = new Intent(Intent.ACTION_VIEW, uri); 
startActivity(intent); 
//其他geo URI范例（latitude: 纬度,longitude: 经度）
//geo:latitude,longitude
//geo:latitude,longitude?z=zoom
//geo:0,0?q=my+street+address
//geo:0,0?q=business+near+city
//google.streetview:cbll=lat,lng&cbp=1,yaw,,pitch,zoom&mz=mapZoom  

      

路径规划 
Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
//where startLat, startLng, endLat, endLng are a long with 6 decimals like: 50.123456
       

打电话 
//叫出拨号程序  
Uri uri = Uri.parse("tel:0800000123");
Intent intent = new Intent(Intent.ACTION_DIAL, uri);
startActivity(intent);
     
//直接打电话出去
Uri uri = Uri.parse("tel:0800000123");
Intent intent = new Intent(Intent.ACTION_CALL, uri);
startActivity(intent);
//用這個，要在 AndroidManifest.xml 中，加上<uses-permission id="android.permission.CALL_PHONE" />
     
传送SMS/MMS 
//调用短信程序  
Intent it = new Intent(Intent.ACTION_VIEW, uri);
it.putExtra("sms_body", "The SMS text"); 
it.setType("vnd.android-dir/mms-sms");
startActivity(it);  
     
//传送消息  
Uri uri = Uri.parse("smsto://0800000123");
Intent it = new Intent(Intent.ACTION_SENDTO, uri);
it.putExtra("sms_body", "The SMS text");
startActivity(it);  
      
//传送 MMS
Uri uri = Uri.parse("content://media/external/images/media/23");
Intent it = new Intent(Intent.ACTION_SEND); 
it.putExtra("sms_body", "some text"); 
it.putExtra(Intent.EXTRA_STREAM, uri);
it.setType("image/png"); 
startActivity(it);
     
传送 Email 
Uri uri = Uri.parse("mailto:xxx@abc.com");
Intent it = new Intent(Intent.ACTION_SENDTO, uri);
startActivity(it);
     
Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");
it.putExtra(Intent.EXTRA_TEXT, "The email body text");
it.setType("text/plain");
startActivity(Intent.createChooser(it, "Choose Email Client"));
    
Intent it=new Intent(Intent.ACTION_SEND);  
String[] tos={"me@abc.com"};  
String[] ccs={"you@abc.com"};  
it.putExtra(Intent.EXTRA_EMAIL, tos);  
it.putExtra(Intent.EXTRA_CC, ccs);  
it.putExtra(Intent.EXTRA_TEXT, "The email body text");  
it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");  
it.setType("message/rfc822");  
startActivity(Intent.createChooser(it, "Choose Email Client"));  
     
//传送附件 
Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");
sendIntent.setType("audio/mp3");
startActivity(Intent.createChooser(it, "Choose Email Client"));  
      
播放多媒体 
 Uri uri = Uri.parse("file:///sdcard/song.mp3");
 Intent it = new Intent(Intent.ACTION_VIEW, uri);
 it.setType("audio/mp3");
 startActivity(it);  

       

 Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
 Intent it = new Intent(Intent.ACTION_VIEW, uri);
 startActivity(it);  
        

Market 相关 
//寻找某个应用  
Uri uri = Uri.parse("market://search?q=pname:pkg_name");  
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
//where pkg_name is the full package path for an application  
      
//显示某个应用的相关信息  
Uri uri = Uri.parse("market://details?id=app_id");
Intent it = new Intent(Intent.ACTION_VIEW, uri);  
startActivity(it);
//where app_id is the application ID, find the ID 
//by clicking on your application on Market home 
//page, and notice the ID from the address bar  
                 
Uninstall 应用程序 
Uri uri = Uri.fromParts("package", strPackageName, null);  
Intent it = new Intent(Intent.ACTION_DELETE, uri); 
startActivity(it);

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">MyNestedLayoutDemo</string>
    <string name="hello_world">Hello world!</string>
    <string name="title_activity_send">发送Intent的Activity程序。</string>
    <string name="title_activity_receive">接收Intent的Activity程序。</string>
    
</resources>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.mynestedlayoutdemo.Send" >

    <Button
        android:id="@+id/mybut"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="按我将跳转到另一个Activity程序" />
    <TextView
        android:id="@+id/msg"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</LinearLayout>

package com.example.mynestedlayoutdemo;

import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
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;

public class Send extends ActionBarActivity {
    private Button mybut = null;
    private TextView msg = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_send);
        this.setTitle("Intent操作");
        this.mybut = (Button) super.findViewById(R.id.mybut);
        this.mybut.setOnClickListener(new OnClickListenerImpl());
        this.msg = (TextView) super.findViewById(R.id.msg); 
    }

    public class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View arg0) {
            Intent it = new Intent(Send.this, Receive.class);  //实例化Intent
            it.putExtra("myinfo", "计算机科学与技术学院");
//            Send.this.startActivity(it);
            Send.this.startActivityForResult(it, 1);  //启动Activity
        }
        
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.send, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch(resultCode){
        case RESULT_OK:
            msg.setText("返回的内容是："+data.getStringExtra("retmsg"));
            break;
        case RESULT_CANCELED:
            msg.setText("操作取消。");
            break;
        default:
            break;
        }
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.mynestedlayoutdemo.Receive" >

    <TextView
        android:id="@+id/myinfo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <Button
        android:id="@+id/retbut"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="返回数据到Send。"/>

</LinearLayout>

package com.example.mynestedlayoutdemo;

import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
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;

public class Receive extends ActionBarActivity {
    private TextView myinfo = null;
    private Button retbtn = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_receive);
        this.myinfo = (TextView) super.findViewById(R.id.myinfo);
        Intent it = super.getIntent();   //取得启动此程序的Intent
        String info = it.getStringExtra("myinfo");  //取得设置的附加信息
        myinfo.setText(info);    //设置文本显示信息
        this.retbtn = (Button) super.findViewById(R.id.retbut);
        this.retbtn.setOnClickListener(new OnClickListenerImpl());
    }

    public class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View arg0) {
            Receive.this.getIntent().putExtra("retmsg", "研究生");  //返回信息
            //设置返回数据的状态，RESULT_OK与Send.java中的onActivityResult()的判断对应
            Receive.this.setResult(RESULT_OK, Receive.this.getIntent());
            Receive.this.finish();  //结束Intent
        }
        
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.receive, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

Uri uri = Uri.parse("http//www.mldn.cn");

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Intent应用</string>
    <string name="title_activity_my_intent_case_demo">MyIntentCaseDemo</string>

</resources>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.mynestedlayoutdemo.MyIntentCaseDemo" >

    <Button
        android:id="@+id/mybut"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="打开网页" />

</LinearLayout>

package com.example.mynestedlayoutdemo;

import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MyIntentCaseDemo extends ActionBarActivity {
    private Button mybut = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_intent_case_demo);
        this.mybut = (Button) super.findViewById(R.id.mybut);
        this.mybut.setOnClickListener(new OnClickListenerImpl());
    }
    
    public class OnClickListenerImpl implements OnClickListener {

        @Override
        public void onClick(View arg0) {
            Uri uri = Uri.parse("http://www.mldn.cn");  //指定数据
            Intent it = new Intent();
            it.setAction(Intent.ACTION_VIEW);
            it.setData(uri);
            MyIntentCaseDemo.this.startActivity(it);  //启动Activity
            
        }
        
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.my_intent_case_demo, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}