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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. Uri uri = Uri.parse(“mailto:xxx@abc.com”);

  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);

  3. startActivity(it);





  1. Intent it = new Intent(Intent.ACTION_SEND);

  2. it.putExtra(Intent.EXTRA_EMAIL, “me@abc.com”);

  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={“me@abc.com”};

  3. String[] ccs={“you@abc.com”};

  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. Intent it = new Intent(Intent.ACTION_VIEW);

  2. Uri uri = Uri.parse(“file:///sdcard/song.mp3”);

  3. it.setDataAndType(uri, “audio/mp3”);

  4. 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);



Uninstall 程序


  1. Uri uri = Uri.fromParts(“package”, strPackageName, null);

  2. Intent it = new Intent(Intent.ACTION_DELETE, uri);

  3. startActivity(it);


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Nov 30 2010