Intent的用法

Intent在google的SDK中原文释义是：An intent is an abstract description of an operation to be performed,intent就是对将要进行的东东的一种抽象描述，我感觉intent在开发中起着穿针引线的强大功能，起着信使的作用，学习中几乎处处都要用到这个东东，今天特地将平时总结的写了出来，顺便自己又复习了一下。

1.浏览网页


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


2.从google搜索内容


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



3.显示地图


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



4.路径规划


   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.拨打电话


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



6.调用发短信的程序


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



7.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);  

   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.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);  

   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.发送Email


   Uri uri = Uri.parse("mailto:[e-mail]");  
   Intent it = new Intent(Intent.ACTION_SENDTO, uri);  
   startActivity(it);  

   Intent it = new Intent(Intent.ACTION_SEND);  
   it.putExtra(Intent.EXTRA_EMAIL, "[e-mail]");  
   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={"[e-mail]"};  
   String[] ccs={"[e-mail]"};  
   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);  



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. 打开照相机


    <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.从gallery选取图片


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



15.打开录音机


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



16.显示应用详细列表

   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  
    
   刚才找app id未果，结果发现用package name也可以  
   Uri uri = Uri.parse("market://details?id=<packagename>");  
   这个简单多了  



17.寻找应用


   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.打开联系人列表


   <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.打开另一程序

   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);