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:

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

2. Uri uri = Uri.parse("mailto:xxx@abc.com");
3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
4. startActivity(it);

2. Intent it = new Intent(Intent.ACTION_SEND); 
3. it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com"); 
4. it.putExtra(Intent.EXTRA_TEXT, "The email body text"); 
5. it.setType("text/plain"); 
6. startActivity(Intent.createChooser(it, "Choose Email Client")); 

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

添加附件

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

播放多媒体

2. Intent it = new Intent(Intent.ACTION_VIEW);
3. Uri uri = Uri.parse("file:///sdcard/song.mp3");
4. it.setDataAndType(uri, "audio/mp3");
5. startActivity(it);

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

Uninstall 程序

1. Uri uri = Uri.fromParts("package", strPackageName, null); 
2. Intent it = new Intent(Intent.ACTION_DELETE, uri); 
3. startActivity(it);