android intent的常用方法

Android的Intent用法
如果是从BroadcastReceiver 启动一个新的Activity , 不要忘记i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
public class MyReceiver extends BroadcastReceiver{
	public static final String action="acc";
	public void onReceive(Context context, Intent intent) {
		Intent i=new Intent(context,Receivered.class);
		i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		context.startActivity(i);
	}
}
1. 指定action和type
// SIM import
Intent importIntent = new Intent(Intent.ACTION_VIEW);
importIntent.setType("vnd.android.cursor.item/sim-contact");
importIntent.setClassName("com.android.phone", "com.android.phone.SimContacts");
menu.add(0, 0, 0, R.string.importFromSim)
.setIcon(R.drawable.ic_menu_import_contact)
.setIntent(importIntent);
2. 指定act ion, da ta和type
(1)隐式查找type
示例代码：
uri: content://simcontacts/simPeople/(id)
intent = new Intent("android.intent.action.SIMEDIT",uri);
startActivity(intent);
程序会很据data中的uri去查找匹配的type（必须的）
provider中的getType()
case SIM_PEOPLE_ID:
return "vnd.android.cursor.item/sim-contact";
配置文件中的filter设定
AndroidManifest.xml
<intent-filter>
<action android:name="android.intent.action.SIMEDIT" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/sim-contact" />
</intent-filter>
也可以自己设定type，但只能使用 setDataAndType()
3. 其他设定intent的属性方式
Intent setComponent(ComponentName component)
Intent setClassName(Context packageContext, String className)
Intent setClassName(String packageName, String className)
Intent setClass(Context packageContext, Class<?> cls)
Intent 应该算是Android中特有的东西。你可以在Intent中指定程序 要执行的动作（比如：view,edit,dial），以及程序执行到该动作时所需要的资料 。都指定好后，只要调用startActivity()，Android系统 会自动寻找最符合你指定要求的应用 程序，并执行该程序。




显示网页: 
   1. Uri uri = Uri.parse("http://www.google.com"); 
   2. Intent it   = new Intent(Intent.ACTION_VIEW,uri); 
   3. startActivity(it);

显示地图: 

   1. Uri uri = Uri.parse("geo:38.899533,-77.036476"); 
   2. Intent it = new Intent(Intent.Action_VIEW,uri); 
   3. startActivity(it);

路径规划: 

   1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en"); 
   2. Intent it = new Intent(Intent.ACTION_VIEW,URI); 
   3. startActivity(it);

拨打电话: 
调用拨号程序 

   1. Uri uri = Uri.parse("tel:xxxxxx"); 
   2. Intent it = new Intent(Intent.ACTION_DIAL, uri);  
   3. startActivity(it); 

1. Uri uri = Uri.parse("tel.xxxxxx"); 
   2. Intent it =new Intent(Intent.ACTION_CALL,uri); 
   3. 要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" />
发送SMS/MMS 
调用发送短信的程序 

   1. Intent it = new Intent(Intent.ACTION_VIEW); 
   2. it.putExtra("sms_body", "The SMS text"); 
   3. it.setType("vnd.android-dir/mms-sms"); 
   4. startActivity(it); 


发送短信 

   1. Uri uri = Uri.parse("smsto:0800000123"); 
   2. Intent it = new Intent(Intent.ACTION_SENDTO, uri); 
   3. it.putExtra("sms_body", "The SMS text"); 
   4. startActivity(it); 


发送彩信 

   1. Uri uri = Uri.parse("content://media/external/images/media/23"); 
   2. Intent it = new Intent(Intent.ACTION_SEND); 
   3. it.putExtra("sms_body", "some text"); 
   4. it.putExtra(Intent.EXTRA_STREAM, uri); 
   5. it.setType("image/png"); 
   6. startActivity(it); 

发送 Email 

   1. 
   2. Uri uri = Uri.parse("mailto:[e-mail]"); 
   3. Intent it = new Intent(Intent.ACTION_SENDTO, uri); 
   4. startActivity(it); 

   1. Intent it = new Intent(Intent.ACTION_SEND); 
   2. it.putExtra(Intent.EXTRA_EMAIL, "[e-mail]"); 
   3. it.putExtra(Intent.EXTRA_TEXT, "The email body text"); 
   4. it.setType("text/plain"); 
   5. startActivity(Intent.createChooser(it, "Choose Email Client"));  

   1. Intent it=new Intent(Intent.ACTION_SEND);    
   2. String[] tos={"[e-mail]"};    
   3. String[] ccs={"[e-mail]"};    
   4. it.putExtra(Intent.EXTRA_EMAIL, tos);    
   5. it.putExtra(Intent.EXTRA_CC, ccs);    
   6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");    
   7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");    
   8. it.setType("message/rfc822");    
   9. startActivity(Intent.createChooser(it, "Choose Email Client")); 

添加附件 

   1. Intent it = new Intent(Intent.ACTION_SEND); 
   2. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text"); 
   3. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3"); 
   4. sendIntent.setType("audio/mp3"); 
   5. startActivity(Intent.createChooser(it, "Choose Email Client"));


播放多媒体 
    1、本地播放：
   
    Intent it = new Intent(Intent.ACTION_VIEW); 
    Uri uri = Uri.parse("file:///sdcard/song.mp3"); 
    it.setDataAndType(uri, "audio/mp3"); 
    startActivity(it); 

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

   2、网络播放

     Intent intent = new Intent(Intent.ACTION_VIEW);
     String type = "video/* ";
     Uri uri = Uri.parse("http://forum.ea3w.com/coll_ea3w/attach/2008_10/12237832415.3gp");
     intent.setDataAndType(uri, type);
     startActivity(intent);

      如果不设置type的话，这样写：
      Intent intent = new Intent(Intent.ACTION_VIEW);
      Uri uri = Uri.parse("http://forum.ea3w.com/coll_ea3w/attach/2008_10/12237832415.3gp");
      intent.setData (uri);
      startActivity(intent);  
      默认用浏览器打开这个URL！
//卸载apk 2 
Uri uninstallUri = Uri.fromParts("package", "xxx", null); 
returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);

//安装APK 
Uri installUri = Uri.fromParts("package", "xxx", null); 
returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);

//调用搜索 
Intent intent = new Intent(); 
intent.setAction(Intent.ACTION_WEB_SEARCH); 
intent.putExtra(SearchManager.QUERY,"android123") 
startActivity(intent);

//market上某个应用信息，app_id可以通过www网站看下, app_id也可以换成packageName 
Uri uri = Uri.parse("market://details?id=app_id");   
Intent it = new Intent(Intent.ACTION_VIEW, uri);   
startActivity(it);

//market上某个应用信，pkg_name就是应用的packageName 
Uri uri = Uri.parse("market://search?q=pname:pkg_name");   
Intent it = new Intent(Intent.ACTION_VIEW, uri);   
startActivity(it);