Android Intent study

Android Intent的幾種用法全面總結:原文： http://hi.baidu.com/weiyousheng/blog/item/41a5533b587451e614cecb68.html 2010-05-05 16:53

Intent 應該算是Android 中特有的東西。你可以在Intent 中指定程式要執行的動作（比如：view,edit,dial ），以及程式執行到該動作時所需要的資料。都指定好後，隻要調用startActivity() ，Android 系統會自動尋找最符合你指定要求的應用程式，并執行該程式。 下面列出幾種Intent 的用法 顯示網頁: Uri uri = Uri.parse("http://www.google.com "); Intent it   = new Intent(Intent.ACTION_VIEW,uri); startActivity(it); 顯示地圖: Uri uri = Uri.parse("geo:38.899533,-77.036476"); Intent it = new Intent(Intent.Action_VIEW,uri); startActivity(it); 路徑規劃: 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); 撥打電話: 調用撥号程式 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); 要使用這個必須在配置檔案中加入<uses-permission id="android.permission.CALL_PHONE" /> 發送SMS/MMS 調用發送短信的程式 Intent it = new Intent(Intent.ACTION_VIEW); it.putExtra("sms_body", "The SMS text"); it.setType("vnd.android-dir/mms-sms"); startActivity(it);   發送短信 Uri uri = Uri.parse("smsto:0800000123"); Intent it = new Intent(Intent.ACTION_SENDTO, uri); it.putExtra("sms_body", "The SMS text"); startActivity(it);   發送彩信 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); 發送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")); 播放多媒體 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 程式 Uri uri = Uri.fromParts("package", strPackageName, null); Intent it = new Intent(Intent.ACTION_DELETE, uri); startActivity(it);