Android Intent的几种用法全面总结

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("http://www.google.com");   
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);

路径规划:

Uri uri = Uri.parse("http://maps.google.com/maps?f=d&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);    
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

**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);

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);

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);

发送Email

Uri uri = Uri.parse("mailto:[email protected]");   
Intent it = new Intent(Intent.ACTION_SENDTO, uri);   
startActivity(it);   
Intent it = new Intent(Intent.ACTION_SEND);    
it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");    
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={"[email protected]"};    
String\[\] ccs={"[email protected]"};    
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"));

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);  
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);