Intent一般应用

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。

下面列出几种Intent的用法
显示网页:

Uri uri = Uri.parse( "<a href=" http: //www.google.com" target="_blank" rel="external">http://www.google.com</a>");   
Intent it  = new  Intent(Intent.ACTION_VIEW,uri);  
startActivity(it);  
Java代码 
Uri uri = Uri.parse("<a href="http://www.google.com" target="_blank" rel="external">http://www.google.com</a>");  
Intent it  = new Intent(Intent.ACTION_VIEW,uri);  
startActivity(it);  

显示地图:

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

路径规划:

Uri uri = Uri.parse( "<a href=" http: //maps.google.com/maps?f=d" target="_blank" rel="external">http://maps.google.com/maps?f=d</a>&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");   
  
Intent it = new  Intent(Intent.ACTION_VIEW,URI);  
  
startActivity(it);  
Java代码 
Uri  
uri = Uri.parse("<a href="http://maps.google.com/maps?f=d"  
target="_blank"  
rel="external">http://maps.google.com/maps?f=d</a>&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");  
Intent  
it = new Intent(Intent.ACTION_VIEW,URI);  
startActivity(it);  

拨打电话:
调用拨号程序

Uri uri = Uri.parse( "tel:xxxxxx" );  
  
Intent it = new  Intent(Intent.ACTION_DIAL, uri);    
  
startActivity(it);   
Java代码 
Uri uri = Uri.parse("tel:xxxxxx");  
Intent it = new Intent(Intent.ACTION_DIAL, uri);    
startActivity(it);   



Uri uri = Uri.parse( "tel.xxxxxx" );  
  
Intent it =new  Intent(Intent.ACTION_CALL,uri);  
  
要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE"  />  
Java代码 
Uri uri = Uri.parse("tel.xxxxxx");  
Intent it =new Intent(Intent.ACTION_CALL,uri);  
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

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

发送短信

Uri uri = Uri.parse( "smsto:0800000123" );     
  
Intent it = new  Intent(Intent.ACTION_SENDTO, uri);     
  
it.putExtra("sms_body" ,  "The SMS text" );     
  
startActivity(it);  
Java代码 
Uri uri = Uri.parse("smsto:0800000123");     
Intent it = new Intent(Intent.ACTION_SENDTO, uri);     
it.putExtra("sms_body", "The SMS text");     
startActivity(it);  

发送彩信

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);   
Java代码 
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);   

发送Email

Uri uri = Uri.parse( "mailto:[e-mail]" );  
  
Intent it = new  Intent(Intent.ACTION_SENDTO, uri);  
  
startActivity(it);  
Java代码 
Uri uri = Uri.parse("mailto:[e-mail]");  
Intent it = new Intent(Intent.ACTION_SENDTO, uri);  
startActivity(it);  

Intent it =  new  Intent(Intent.ACTION_SEND);     
  
it.putExtra(Intent.EXTRA_EMAIL, "[e-mail]" );     
  
it.putExtra(Intent.EXTRA_TEXT, "The email body text" );     
  
it.setType("text/plain" );     
  
startActivity(Intent.createChooser(it, "Choose Email Client" ));  
Java代码 
Intent it = new Intent(Intent.ACTION_SEND);     
it.putExtra(Intent.EXTRA_EMAIL, "[e-mail]");     
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={"[e-mail]" };       
  
String[] ccs={"[e-mail]" };       
  
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" ));   
Java代码 
Intent it=new Intent(Intent.ACTION_SEND);       
String[] tos={"[e-mail]"};       
String[] ccs={"[e-mail]"};       
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"));   

添加附件

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" ));  
Java代码 
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

Intent it =  new  Intent(Intent.ACTION_VIEW);  
  
Uri uri = Uri.parse("file:///sdcard/song.mp3" );  
  
it.setDataAndType(uri, "audio/mp3" );  
  
startActivity(it);  
Java代码 
Intent it = new Intent(Intent.ACTION_VIEW);  
Uri uri = Uri.parse("file:///sdcard/song.mp3");  
it.setDataAndType(uri, "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);  
Java代码 
Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");     
Intent it = new Intent(Intent.ACTION_VIEW, uri);     
startActivity(it);  

Uninstall 程序

Uri uri = Uri.fromParts( "package" , strPackageName,  null );     
  
Intent it = new  Intent(Intent.ACTION_Delete, uri);     
  
startActivity(it);  
Java代码 
Uri uri = Uri.fromParts("package", strPackageName, null);     
Intent it = new Intent(Intent.ACTION_Delete, uri);     
startActivity(it);  

uninstall apk

Uri uninstallUri = Uri.fromParts( "package" ,  "xxx" ,  null );  
returnIt = new  Intent(Intent.ACTION_Delete, uninstallUri);  
Java代码 
Uri uninstallUri = Uri.fromParts("package", "xxx", null);  
returnIt = new Intent(Intent.ACTION_Delete, uninstallUri);  

install apk

Uri installUri = Uri.fromParts( "package" ,  "xxx" ,  null );  
returnIt = new  Intent(Intent.ACTION_PACKAGE_ADDED, installUri);  
Java代码 
Uri installUri = Uri.fromParts("package", "xxx", null);  
returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);  

play audio

Uri playUri = Uri.parse( "file:///sdcard/download/everything.mp3" );  
returnIt = new  Intent(Intent.ACTION_VIEW, playUri);  
Java代码 
Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");  
returnIt = new Intent(Intent.ACTION_VIEW, playUri);  

发送附件

Intent it =  new  Intent(Intent.ACTION_SEND);    
  
it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text" );    
  
it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3" );    
  
sendIntent.setType("audio/mp3" );    
  
startActivity(Intent.createChooser(it, "Choose Email Client" ));  
Java代码 
Intent it = new Intent(Intent.ACTION_SEND);    
it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");    
it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");    
sendIntent.setType("audio/mp3");    
startActivity(Intent.createChooser(it, "Choose Email Client"));  

Market相关：

//搜索应用   
  
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     
  
  

 
//显示指定应用的详细页面（这个好像不支持了，找不到app_id）  

  
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