Android 外部启动activity，自定义action，action常量大全
从任意app，启动另外一个app的activity：
1. Intent i = new Intent();
ComponentName cn = new ComponentName("com.book.android2", "com.book.android2.AndroidSearch");
i.setComponent(cn);
i.setAction("android.intent.action.MAIN");
startActivity(i); //or startActivityForResult(i, RESULT_OK);
我用这种方法时，绝大部分应用可以启动，但是像RootExplorer却无法启动，出现FC对话框,因此建议使用下面这种方式：
2. Intent it = new Intent("android.intent.action.MAIN");
it.setClassName("com.speedsoftware.rootexplorer","com.speedsoftware.rootexplorer.RootExplorer");
startActivity(it);
如果你需要启动一个你自己写的另一个app的activity，你可以在那个的menifest.xml里自定义activity的action:
< activity android:name =" .MainActivity " android:label =" @string/app_name " android:theme =" @android :style/Theme.Black.NoTitleBar.Fullscreen " >
<intent-filter>
<action android:name=" com.qylk.call.main" /> <!-- 自定义的action-->
<action android:name=" android.intent.action.MAIN" />
<category android:name=" android.intent.category.LAUNCHER" />
<category android:name=" android.intent.category.DEFAULT" /><!--必须加上这个，否则下面无法直接使用自定的action-->
</intent-filter>
</activity>
其他地方启动它： Intent it = new Intent(" com.qylk.call.main "); startActivity(it);
3.使用adb启动activity：
启动RootExolorer：
am start -a android.intent.action.MAIN -n com.speedsoftware.rootexplorer/.RootExplorer
启动系统设置：
am start -a android.settings.SETTINGS
附（转载）：android系统Action常量(其实不算全)
android intent和intent action大全
1.从google搜索内容
Intent intent = new Intent();
intent.setAction(Intent.ACTION_WEB_SEARCH);
intent.putExtra(SearchManager.QUERY,"searchString")
startActivity(intent);
2.浏览网页
Uri uri = Uri.parse("http://www.google.com");
Intent it = new Intent(Intent.ACTION_VIEW,uri);
startActivity(it);
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);
//<uses-permission id="android.permission.CALL_PHONE" />
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: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"));
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.卸载
Uri uri = Uri.fromParts("package", strPackageName, null);
Intent it = new Intent(Intent.ACTION_DELETE, uri);
startActivity(it);
12.安装
Uri installUri = Uri.fromParts("package", "xxx", null);
returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
13. 打开照相机
Intent i = new Intent(Intent.ACTION_CAMERA_BUTTON, null);
this.sendBroadcast(i);
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);
17.寻找应用
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
Uri uri = Uri.parse("market://search?q=pname:pkg_name");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
18.打开联系人列表
Intent i = new Intent();
i.setAction(Intent.ACTION_GET_CONTENT);
i.setType("vnd.android.cursor.item/phone");
startActivityForResult(i, REQUEST_TEXT);
Uri uri = Uri.parse("content://contacts/people");
Intent it = new Intent(Intent.ACTION_PICK, uri);
startActivityForResult(it, REQUEST_TEXT);
20.调用系统编辑添加联系人（高版本SDK有效）：
Intent it = new Intent(Intent.ACTION_INSERT_OR_EDIT);
it.setType("vnd.android.cursor.item/contact");
// it.setType(Contacts.CONTENT_ITEM_TYPE);
it.putExtra("name", "myName");
it.putExtra(android.provider.Contacts.Intents.Insert.COMPANY, "organization");
it.putExtra(android.provider.Contacts.Intents.Insert.EMAIL, "email");
it.putExtra(android.provider.Contacts.Intents.Insert.PHONE,"homePhone");
it.putExtra( android.provider.Contacts.Intents.Insert.SECONDARY_PHONE,
"mobilePhone");
it.putExtra( android.provider.Contacts.Intents.Insert.TERTIARY_PHONE,
"workPhone");
it.putExtra(android.provider.Contacts.Intents.Insert.JOB_TITLE,"title");
startActivity(it);
21.调用系统编辑添加联系人（全有效）：
Intent intent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
intent.setType(People.CONTENT_ITEM_TYPE);
intent.putExtra(Contacts.Intents.Insert.NAME, "My Name");
intent.putExtra(Contacts.Intents.Insert.PHONE, "+1234567890");
intent.putExtra(Contacts.Intents.Insert.PHONE_TYPE, Contacts.PhonesColumns.TYPE_MOBILE);
intent.putExtra(Contacts.Intents.Insert.EMAIL, "com@com.com");
intent.putExtra(Contacts.Intents.Insert.EMAIL_TYPE, Contacts.ContactMethodsColumns.TYPE_WORK);
startActivity(intent);
23.最基本的share 信息的intent，可以传一段text信息到各个手机上已安装程序：如SMS，Email，sina微波，米聊，facebook，twitter等等
Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_TEXT, "The email subject text");
it.setType("text/plain");
startActivity(Intent.createChooser(it, "Choose Email Client"));
★intent action大全：
ACTION_MAIN 作为一个主要的进入口，而并不期望去接受数据
ACTION_VIEW 向用户去显示数据
ACTION_ATTACH_DATA 用于指定一些数据应该附属于一些其他的地方，例如，图片数据应该附属于联系人
ACTION_EDIT 访问已给的数据，提供明确的可编辑
ACTION_PICK 从数据中选择一个子项目，并返回你所选中的项目
ACTION_CHOOSER 显示一个activity选择器，允许用户在进程之前选择他们想要的
ACTION_GET_CONTENT 允许用户选择特殊种类的数据，并返回（特殊种类的数据：照一张相片或录一段音）
ACTION_DIAL 拨打一个指定的号码，显示一个带有号码的用户界面，允许用户去启动呼叫
ACTION_CALL 根据指定的数据执行一次呼叫（ACTION_CALL在应用中启动一次呼叫有缺陷，多数应用ACTION_DIAL，ACTION_CALL不能用在紧急呼叫上，紧急呼叫可以用ACTION_DIAL来实现）
ACTION_SEND 传递数据，被传送的数据没有指定，接收的action请求用户发数据
ACTION_SENDTO 发送一跳信息到指定的某人
ACTION_ANSWER 处理一个打进电话呼叫
ACTION_INSERT 插入一条空项目到已给的容器
ACTION_DELETE 从容器中删除已给的数据
ACTION_RUN 运行数据，无论怎么
ACTION_SYNC 同步执行一个数据
ACTION_PICK_ACTIVITY 为已知的Intent选择一个Activity，返回选中的类
ACTION_SEARCH 执行一次搜索
ACTION_WEB_SEARCH 执行一次web搜索
ACTION_FACTORY_TEST 工场测试的主要进入点，
标准的广播Actions
ACTION_TIME_TICK 当前时间改变，每分钟都发送，不能通过组件声明来接收，只有通过Context.registerReceiver()方法来注册
ACTION_TIME_CHANGED 时间被设置
ACTION_TIMEZONE_CHANGED 时间区改变
ACTION_BOOT_COMPLETED 系统完成启动后，一次广播
ACTION_PACKAGE_ADDED 一个新应用包已经安装在设备上，数据包括包名（最新安装的包程序不能接收到这个广播）
ACTION_PACKAGE_CHANGED 一个已存在的应用程序包已经改变，包括包名
ACTION_PACKAGE_REMOVED 一个已存在的应用程序包已经从设备上移除，包括包名（正在被安装的包程序不能接收到这个广播）
ACTION_PACKAGE_RESTARTED 用户重新开始一个包，包的所有进程将被杀死，所有与其联系的运行时间状态应该被移除，包括包名（重新开始包程序不能接收到这个广播）
ACTION_PACKAGE_DATA_CLEARED 用户已经清除一个包的数据，包括包名（清除包程序不能接收到这个广播）
ACTION_BATTERY_CHANGED 电池的充电状态、电荷级别改变，不能通过组建声明接收这个广播，只有通过Context.registerReceiver()注册
ACTION_UID_REMOVED 一个用户ID已经从系统中移除
android.intent.action.ALL_APPS
android.intent.action.ANSWER
android.intent.action.ATTACH_DATA
android.intent.action.BUG_REPORT
android.intent.action.CALL
android.intent.action.CALL_BUTTON
android.intent.action.CHOOSER
android.intent.action.CREATE_LIVE_FOLDER
android.intent.action.CREATE_SHORTCUT
android.intent.action.DELETE
android.intent.action.DIAL
android.intent.action.EDIT
android.intent.action.GET_CONTENT
android.intent.action.INSERT
android.intent.action.INSERT_OR_EDIT
android.intent.action.MAIN
android.intent.action.MEDIA_SEARCH
android.intent.action.PICK
android.intent.action.PICK_ACTIVITY
android.intent.action.RINGTONE_PICKER
android.intent.action.RUN
android.intent.action.SEARCH
android.intent.action.SEARCH_LONG_PRESS
android.intent.action.SEND
android.intent.action.SENDTO
android.intent.action.SET_WALLPAPER
android.intent.action.SYNC
android.intent.action.SYSTEM_TUTORIAL
android.intent.action.VIEW
android.intent.action.VOICE_COMMAND
android.intent.action.WEB_SEARCH
android.net.wifi.PICK_WIFI_NETWORK
SETTING:
android.settings.AIRPLANE_MODE_SETTINGS
android.settings.APN_SETTINGS
android.settings.APPLICATION_DEVELOPMENT_SETTINGS
android.settings.APPLICATION_SETTINGS
android.settings.BLUETOOTH_SETTINGS
android.settings.DATA_ROAMING_SETTINGS
android.settings.DATE_SETTINGS
android.settings.DISPLAY_SETTINGS
android.settings.INPUT_METHOD_SETTINGS
android.settings.INTERNAL_STORAGE_SETTINGS
android.settings.LOCALE_SETTINGS
android.settings.LOCATION_SOURCE_SETTINGS
android.settings.MANAGE_APPLICATIONS_SETTINGS
android.settings.MEMORY_CARD_SETTINGS
android.settings.NETWORK_OPERATOR_SETTINGS
android.settings.QUICK_LAUNCH_SETTINGS
android.settings.SECURITY_SETTINGS
android.settings.SETTINGS
android.settings.SOUND_SETTINGS
android.settings.SYNC_SETTINGS
android.settings.USER_DICTIONARY_SETTINGS
android.settings.WIFI_IP_SETTINGS
android.settings.WIFI_SETTINGS
android.settings.WIRELESS_SETTINGS
在android SDK文档中有这样一个类，android.provider.Settings类提供android系统各个页面的跳转常量：
使用实例例：startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS))，即可跳到android手机网络设置页面。
如果要launch Mobile Networks Setting页面按如下方法：
Intent intent=new Intent(Settings.ACTION_DATA_ROAMING_SETTINGS);
ComponentName cName = new ComponentName(“com.android.phone”,”com.android.phone.Settings”);
intent.setComponent(cName);
startActivity(intent);
如果要进入Networks Operators页面按如下方法：
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName(“com.android.phone”, “com.android.phone.NetworkSetting”);
startActivity(intent);
String ACTION_ACCESSIBILITY_SETTINGS
辅助功能模块的显示设置。 Activity Action: Show settings for accessibility modules.
String ACTION_ADD_ACCOUNT
显示屏幕上创建一个新帐户添加帐户。 Activity Action: Show add account screen for creating a new account.
String ACTION_AIRPLANE_MODE_SETTINGS
显示设置，以允许进入/退出飞行模式。 Activity Action: Show settings to allow entering/exiting airplane mode.
String ACTION_APN_SETTINGS
显示设置，以允许配置的APN。 Activity Action: Show settings to allow configuration of APNs.
String ACTION_APPLICATION_DETAILS_SETTINGS
有关特定应用程序的详细信息的显示屏幕。 Activity Action: Show screen of details about a particular application.
String ACTION_APPLICATION_DEVELOPMENT_SETTINGS
显示设置，以允许应用程序开发相关的设置配置 Activity Action: Show settings to allow configuration of application development-related settings.
String ACTION_APPLICATION_SETTINGS
显示设置，以允许应用程序相关的设置配置 Activity Action: Show settings to allow configuration of application-related settings.
String ACTION_BLUETOOTH_SETTINGS
显示设置，以允许蓝牙配置 Activity Action: Show settings to allow configuration of Bluetooth.
String ACTION_DATA_ROAMING_SETTINGS
选择of2G/3G显示设置 Activity Action: Show settings for selection of2G/3G.
String ACTION_DATE_SETTINGS
显示日期和时间设置，以允许配置 Activity Action: Show settings to allow configuration of date and time.
String ACTION_DEVICE_INFO_SETTINGS
显示一般的设备信息设置（序列号，软件版本，电话号码，等） Activity Action: Show general device information settings (serial number, software version, phone number, etc.).
String ACTION_DISPLAY_SETTINGS
显示设置，以允许配置显示 Activity Action: Show settings to allow configuration of display.
String ACTION_INPUT_METHOD_SETTINGS
特别配置的输入方法，允许用户启用输入法的显示设置 Activity Action: Show settings to configure input methods, in particular allowing the user to enable input methods.
String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS
显示设置来启用/禁用输入法亚型 Activity Action: Show settings to enable/disable input method subtypes.
String ACTION_INTERNAL_STORAGE_SETTINGS
内部存储的显示设置 Activity Action: Show settings for internal storage.
String ACTION_LOCALE_SETTINGS
显示设置，以允许配置的语言环境 Activity Action: Show settings to allow configuration of locale.
String ACTION_LOCATION_SOURCE_SETTINGS
显示设置，以允许当前位置源的配置 Activity Action: Show settings to allow configuration of current location sources.
String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS
显示设置来管理所有的应用程序 Activity Action: Show settings to manage all applications.
String ACTION_MANAGE_APPLICATIONS_SETTINGS
显示设置来管理安装的应用程序 Activity Action: Show settings to manage installed applications.
String ACTION_MEMORY_CARD_SETTINGS
显示设置为存储卡存储 Activity Action: Show settings for memory card storage.
String ACTION_NETWORK_OPERATOR_SETTINGS
选择网络运营商的显示设置 Activity Action: Show settings for selecting the network operator.
String ACTION_PRIVACY_SETTINGS
显示设置，以允许配置隐私选项 Activity Action: Show settings to allow configuration of privacy options.
String ACTION_QUICK_LAUNCH_SETTINGS
显示设置，以允许快速启动快捷键的配置 Activity Action: Show settings to allow configuration of quick launch shortcuts.
String ACTION_SEARCH_SETTINGS
全局搜索显示设置 Activity Action: Show settings for global search.
String ACTION_SECURITY_SETTINGS
显示设置，以允许配置的安全性和位置隐私 Activity Action: Show settings to allow configuration of security and location privacy.
String ACTION_SETTINGS
显示系统设置 Activity Action: Show system settings.
String ACTION_SOUND_SETTINGS
显示设置，以允许配置声音和音量 Activity Action: Show settings to allow configuration of sound and volume.
String ACTION_SYNC_SETTINGS
显示设置，以允许配置同步设置 Activity Action: Show settings to allow configuration of sync settings.
String ACTION_USER_DICTIONARY_SETTINGS
显示设置来管理用户输入字典 Activity Action: Show settings to manage the user input dictionary.
String ACTION_WIFI_IP_SETTINGS
显示设置，以允许配置一个静态IP地址的Wi – Fi Activity Action: Show settings to allow configuration of a static IP address for Wi-Fi.
String ACTION_WIFI_SETTINGS
显示设置，以允许Wi – Fi配置 Activity Action: Show settings to allow configuration of Wi-Fi.
String ACTION_WIRELESS_SETTINGS
显示设置，以允许配置，如Wi – Fi，蓝牙和移动网络的无线控制 Activity Action: Show settings to allow configuration of wireless controls such as Wi-Fi, Bluetooth and Mobile networks.
String AUTHORITY
String EXTRA_AUTHORITIES
在推出活动的基础上给予的权力限制可选项。 Activity Extra: Limit available options in launched activity based on the given authority.
String EXTRA_INPUT_METHOD_ID
