Intent的用法

Intent在google的SDK中原文釋義是：An intent is an abstract description of an operation to be performed,intent就是對將要進行的東東的一種抽象描述，我感覺intent在開發中起着穿針引線的強大功能，起着信使的作用，學習中幾乎處處都要用到這個東東，今天特地將平時總結的寫了出來，順便自己又複習了一下。

1.瀏覽網頁


   Uri uri = Uri.parse("http://www.focuser.org");  
   Intent it = new Intent(Intent.ACTION_VIEW,uri);  
   startActivity(it); 


2.從google搜索內容


   Intent intent = new Intent();  
   intent.setAction(Intent.ACTION_WEB_SEARCH);  
   intent.putExtra(SearchManager.QUERY,"searchString")  
   startActivity(intent);  



3.顯示地圖


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



4.路徑規劃


   Uri uri = Uri.parse("http://maps.google.com/maps?f=dsaddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");  
   Intent it = new Intent(Intent.ACTION_VIEW,URI);  
   startActivity(it);  



5.撥打電話


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



6.調用發短信的程序


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



7.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);  

   String body="this is sms demo";  
   Intent mmsintent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("smsto", number, null));  
   mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);  
   mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, true);  
   mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, true);  
   startActivity(mmsintent);  



8.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);  

   StringBuilder sb = new StringBuilder();  
   sb.append("file://");  
   sb.append(fd.getAbsoluteFile());  
   Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("mmsto", number, null));  
   // Below extra datas are all optional.  
   intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT, subject);  
   intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);  
   intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI, sb.toString());  
   intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, composeMode);  
   intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, exitOnSent);  
   startActivity(intent);  



9.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"));  
   
   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"));  



10.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);  



11.uninstall apk


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



12.install apk


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


13. 打開照相機


    <1>
    Intent i = new Intent(Intent.ACTION_CAMERA_BUTTON, null);  
    this.sendBroadcast(i);  

    <2>
    long dateTaken = System.currentTimeMillis();  
    String name = createName(dateTaken) + ".jpg";  
    fileName = folder + name;  
    ContentValues values = new ContentValues();  
    values.put(Images.Media.TITLE, fileName);  
    values.put("_data", fileName);  
    values.put(Images.Media.PICASA_ID, fileName);  
    values.put(Images.Media.DISPLAY_NAME, fileName);  
    values.put(Images.Media.DESCRIPTION, fileName);  
    values.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, fileName);  
    Uri photoUri = getContentResolver().insert(  
    MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);  
    
    Intent inttPhoto = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  
    inttPhoto.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);  
    startActivityForResult(inttPhoto, 10);  



14.從gallery選取圖片


   Intent i = new Intent();  
   i.setType("image/*");  
   i.setAction(Intent.ACTION_GET_CONTENT);  
   startActivityForResult(i, 11);  



15.打開錄音機


   Intent mi = new Intent(Media.RECORD_SOUND_ACTION);  
   startActivity(mi);  



16.顯示應用詳細列表

   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  
    
   剛纔找app id未果，結果發現用package name也可以  
   Uri uri = Uri.parse("market://details?id=<packagename>");  
   這個簡單多了  



17.尋找應用


   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  



18.打開聯繫人列表


   <1>  
   Intent i = new Intent();  
   i.setAction(Intent.ACTION_GET_CONTENT);  
   i.setType("vnd.android.cursor.item/phone");  
   startActivityForResult(i, REQUEST_TEXT);  
     
   <2>  
   Uri uri = Uri.parse("content://contacts/people");  
   Intent it = new Intent(Intent.ACTION_PICK, uri);  
   startActivityForResult(it, REQUEST_TEXT);  



19.打開另一程序

   Intent i = new Intent();  
   ComponentName cn = new ComponentName("org.focuser.one",  "org.focuser.two");  
   i.setComponent(cn);  
   i.setAction("android.intent.action.MAIN");  
   startActivityForResult(i, RESULT_OK);