Intent在Android中的幾種用法


轉自東方尚智沈大海csdn博客:


如果是從BroadcastReceiver啟動一個新的Activity, 不要忘記i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 

public class MyReceiver extends BroadcastReceiver{

public static final String action="acc";
 public void onReceive(Context context, Intent intent) {
  Intent i=new Intent(context,Receivered.class);
  i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  context.startActivity(i);
 }


}

1. 指定action 和type
// SIM import
        Intent importIntent = new Intent(Intent.ACTION_VIEW);
        importIntent.setType("vnd.android.cursor.item/sim-contact");
        importIntent.setClassName("com.android.phone", "com.android.phone.SimContacts");
        menu.add(0, 0, 0, R.string.importFromSim)
                .setIcon(R.drawable.ic_menu_import_contact)
                .setIntent(importIntent);
                
2. 指定action, data和type
(1)隱式查找type
示例代碼:
uri: content://simcontacts/simPeople/(id)
intent = new Intent("android.intent.action.SIMEDIT",uri);
            startActivity(intent);

程序會很據data中的uri去查找匹配的type(必須的)            
provider中的getType()            
case SIM_PEOPLE_ID:
            return "vnd.android.cursor.item/sim-contact";  

配置文件中的filter設定           
AndroidManifest.xml
    <intent-filter>
                <action android:name="android.intent.action.SIMEDIT" />
                <category android:name="android.intent.category.DEFAULT" />          
                <data android:mimeType="vnd.android.cursor.item/sim-contact" />
      </intent-filter>

也可以自己設定type,但只能使用 setDataAndType()     
      
3. 其他設定intent的屬性方式
   Intent setComponent(ComponentName component)
   Intent setClassName(Context packageContext, String className)
   Intent setClassName(String packageName, String className)
   Intent setClass(Context packageContext, Class<?> cls)
   

Intent應該算是Android中特有的東西。你可以在Intent中指定程序要執行的動作(比如:view,edit,dial),以及程序執行到該動作時所需要的資料。都指定好后,只要調用startActivity(),Android系統會自動尋找最符合你指定要求的應用程序,並執行該程序。

下面列出幾種Intent的用法
顯示網頁:

  1. Uri uri = Uri.parse("http://www.google.com");
  2. Intent it  = new Intent(Intent.ACTION_VIEW,uri);
  3. startActivity(it);

顯示地圖:

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

路徑規划:

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

撥打電話:
調用撥號程序

  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. 要使用這個必須在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" />

發送SMS/MMS
調用發送短信的程序

  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);  

發送短信

  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);  

發送彩信

  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);

發送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"));

播放多媒體

  1.   
  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);
  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);

uninstall apk
  1. Uri uninstallUri = Uri.fromParts("package", "xxx", null);
  2. returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
install apk
  1. Uri installUri = Uri.fromParts("package", "xxx", null);
  2. returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
play audio
  1. Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");
  2. returnIt = new Intent(Intent.ACTION_VIEW, playUri);
  1. //發送附件
  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/eoe.mp3");  
  5. sendIntent.setType("audio/mp3");  
  6. startActivity(Intent.createChooser(it, "Choose Email Client"));
  1. //搜索應用
  2. Uri uri = Uri.parse("market://search?q=pname:pkg_name");  
  3. Intent it = new Intent(Intent.ACTION_VIEW, uri);  
  4. startActivity(it);  
  5. //where pkg_name is the full package path for an application  
  6. //顯示指定應用的詳細頁面(這個好像不支持了,找不到app_id)
  7. Uri uri = Uri.parse("market://details?id=app_id");  
  8. Intent it = new Intent(Intent.ACTION_VIEW, uri);  
  9. startActivity(it);  
  10. //where app_id is the application ID, find the ID  
  11. //by clicking on your application on Market home  
  12. //page, and notice the ID from the address bar


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