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act ion 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act ion, da ta和type
(1)隱式查詢type
示例程式碼：

uri: content://simcontacts/simPeople/(id)
intent = new Intent(“android.intent.action.SIMEDIT”,uri);
startActivity(intent);

程式會根據data中的uri去查詢匹配的type（必須的）
provider中的getType()
case SIM_PEOPLE_ID:
return “vnd.android.cursor.item/sim-contact”;

配置檔案中的filter設定
AndroidManifest.xml
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 mIntent = new Intent();
ComponentName comp = new ComponentName(“com.android.a”,”com.android.a.AbcActivity” );
mIntent.setComponent(comp);
mIntent.setAction(“android.intent.action.MAIN”);
startActivity(mIntent);

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:

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);

撥打電話:
呼叫撥號程式

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許可權

傳送SMS/MMS
呼叫傳送簡訊的程式

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

傳送簡訊

Uri uri = Uri.parse(“smsto:0800000123″);
Intent it = new Intent(Intent.ACTION_SENDTO, uri);
it.putExtra(“sms_body”, “The SMS text”);
startActivity(it);

傳送彩信

 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);

傳送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”));

新增附件

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

//方法1.

Uri uri = Uri.parse(“file:///sdcard/song.mp3″);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
// it.addFlags(it.FLAG_ACTIVITY_NEW_TASK);//非必須選項
it.setDataAndType(uri, “audio/mp3″);
context.startActivity(it);

//方法2.

 Intent it = new Intent(Intent.ACTION_VIEW);
 Uri uri = Uri.parse(“file:///sdcard/song.mp3″);
 it.setDataAndType(uri, “audio/mp3″);
 startActivity(it);

//方法3. 啟動一個播放器並播放一個系統聲音

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);

uninstall apk

Uri uninstallUri = Uri.fromParts(“package”, “xxx”, null);
returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);

install apk

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

play audio

Uri playUri = Uri.parse(“file:///sdcard/download/everything.mp3″);
returnIt = new Intent(Intent.ACTION_VIEW, playUri);

//傳送附件

 Intent it = new Intent(Intent.ACTION_SEND);
 it.putExtra(Intent.EXTRA_SUBJECT, “The email subject text”);
it.putExtra(Intent.EXTRA_STREAM, “file:///sdcard/eoe.mp3″);
sendIntent.setType(“audio/mp3″);
startActivity(Intent.createChooser(it, “Choose Email Client”));

market相關

//搜尋應用

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

//顯示指定應用的詳細頁面（這個好像不支援了，找不到app_id）

Uri uri = Uri.parse(“market://details?id=app_id”);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);