转自东方尚智沈大海csdn博客：
如果是从BroadcastReceiver 启动一个新的Activity , 不要忘记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)隐式查找type
示例代码：
uri: content://simcontacts/simPeople/(id) intent = new Intent("android.intent.action.SIMEDIT",uri); startActivity(intent);
程序会很据data中的uri去查找匹配的type(必须的)
provider中的getType() case SIM_PEOPLE_ID: return "vnd.android.cursor.item/sim-contact";
配置文件中的filter设定
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> 也可以自己设定type，但只能使用 setDataAndType()
3. 其他设定intent的属性方式
Intent setComponent(ComponentName component) Intent setClassName(Context packageContext, String className) Intent setClassName(String packageName, String className) Intent setClass(Context packageContext, Class<?> cls)
Intent 应该算是Android中特有的东西。你可以在Intent中指定程序 要执行的动作(比如：view,edit,dial)，以及程序执行到该动作时所需要的资料 。都指定好后，只要调用startActivity()，Android系统 会自动寻找最符合你指定要求的应用 程序，并执行该程序。
下面列出几种Intent 的用法显示网页:
Uri uri = Uri.parse("https://www.google.com"); Intent it = new Intent(Intent.ACTION_VIEW,uri); startActivity(it);
显示地图:
Uri uri = Uri.parse("geo:38.899533,-77.036476"); Intent it = new Intent(Intent.Action_VIEW,uri); startActivity(it);
路径规划:
1. Uri uri = Uri.parse("https://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); 拨打电话:
调用拨号程
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); 要使用这个必须在配置文件 中加入<uses-permission id="android .permission.CALL_PHONE" />
发送SMS/MMS
调用发送短信 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);
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);
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);
发送Email
Uri uri = Uri.parse("mailto:xxx@abc.com"); Intent it = new Intent(Intent.ACTION_SENDTO, uri); startActivity(it); Intent it = new Intent(Intent.ACTION_SEND); it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com"); 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={"me@abc.com"}; String[] ccs={"you@abc.com"}; 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);
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
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); //发送附件 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")); //搜索应用 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 //显示指定应用的详细页面(这个好像不支持了，找不到app_id) Uri uri = Uri.parse("market://details?id=app_id"); Intent it = new Intent(Intent.ACTION_VIEW, uri); startActivity(it); //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
