android radio broadcast

Broadcast Mechanism in Android Development /* * Broadcast mechanism for Android Development * Beijing Android Club group: 167839253 * Created on: 2012-7-31 * Author: blueeagle * Email: liujiaxiang@gmail.com */Overview In Android,

("android.intent.action.MEDIA_UNMOUNTED".equals(action)) { System.out.println("SD卡被卸载了"); }}The note here is that we can onReceiver() get the action that triggers the broadcast by passing it to our object of intent intent.Introduction to some popular broadcasts Auto start broadcast on boot Android3.0 previously did not need to add permissions, after the 3.0 version a

Android. provider. telephony. the broadcast Intent when SMS_RECEIVED receives the SMS. ACTION_AIRPLANE_MODE_CHANGED; // broadcast Intent when flight mode is disabled or enabled. ACTION_BATTERY_CHANGED; // The charging status, or the battery power change // The battery charging status and charge level change. You cannot receive this

the device is currently set to be changed, please refer to Configuration.java intent.action_date_changed;This broadcast is emitted when the device date has changed Intent.action_device_storage_low;Broadcast when the device is out of memory, this broadcast can only be used by the system, other apps are not available? INTENT.ACTION_DEVICE_STORAGE_OK;A

001 intent.action_airplane_mode_changed; 002//Broadcast When airplane mode is turned off or on003 004 intent.action_battery_changed; 005//charging status, or battery power change 006//battery charge status, charge level change, cannot receive this broadcast through the formation statement, only through Context.registerreceiver () registration 007 008 Intent.action_battery_low; 009//indicates low batte

Android has a very important feature, is broadcast. You can also consider broadcasting as a communication mechanism. Android Four components: Activity, Service, Broadcastreceiver and ContentProvider, only activity and service have a complete life cycle, other Broadcastreceiverand ContentProvider are not. Broadcastreceiver is essentially a listener responsible for

;Import Android.os.IBinder;public class MyService extends Service {@OverridePublic IBinder Onbind (Intent Intent) {return null;}OnCreate ondestory onstart onstop onresume onpause@Overridepublic void OnCreate () {SYSTEM.OUT.PRINTLN ("service created");Super.oncreate ();}@Overridepublic int Onstartcommand (Intent Intent, int flags, int startid) {SYSTEM.OUT.PRINTLN ("server");Return Super.onstartcommand (Intent, flags, Startid);}@Overridepublic void OnDestroy () {SYSTEM.OUT.PRINTLN ("server destroy

/** * How to understand Broadcastreceiver (radio)? * In fact, you can think of this, first we have to send a broadcast of the "media", in this case, we use the activity component as the media, of course, later * Use service, or random start to send the broadcast, this depends on the business needs to decide. * In this example, when the button is clicked,

1.Android Broadcast Mechanism overviewAndroid broadcasts are divided into two areas: the broadcast sender and the broadcast receiver, usually broadcastreceiver refers to the broadcast recipient (broadcast receiver).

I remember when I went to school, each class will have a speaker in the classroom, these speakers are connected to the school's broadcast room, once there is any important notice, will broadcast a radio to inform the teachers and students. Similar working mechanisms are also widely used in the computer field, if you understand the principle of network communicati

What is Broadcastreceiver? Broadcastreceiver, a broadcast receiver, is a system global listener that listens to the global broadcast message of the system, so it can easily communicate between system components. Broadcastreceiver is a listener, but it is different from the onxxxlistener used before, those are just program-level listeners, running in the process of the specified program, and when the progr

1.Broadcast Receiver Broadcast receiver brief introduction1.1. Definition Broadcast receiver (broadcast receiver), one of the four components of Android In Android development, br