20140917 Setting Live Wallpaper

In Manifest.xml:

         <service             android:enabled= "true"            android:permission= "Android.permission.BIND_WALLPAPER"            android: Name= "Com.android.settings.common.display.BackgroundSettingService" >            <intent-filter>                < Action android:name= "Android.service.wallpaper.WallpaperService" ></action>            </intent-filter>            <meta-data                 android:name= "Android.service.wallpaper"                 android:resource= "@xml/wallpaper" >            </meta-data>        </service>

　　

Check the entries in the settings:

Activity activity = getactivity (); Preferencescreen screenbackgroundsetting = (preferencescreen) findpreference (key_background_setting); Screenbackgroundsetting! = null) {Screenbackgroundsetting.setonpreferenceclicklistener (new Onpreferenceclicklistener () {@Overridepublic Boolean onpreferenceclick (Preference Preference) {//TODO auto-generated Method Stubstartfragmenttransaction (New Commonbackgroundsettingfragment ()); return true;}});

The right-hand interface switches to the following fragment:

Package Com.android.settings.common.display;import Android.app.fragment;import Android.app.wallpaperinfo;import Android.app.wallpapermanager;import Android.content.context;import Android.content.intent;import Android.os.bundle;import Android.util.log;import Android.view.layoutinflater;import Android.view.View;import Android.view.viewgroup;import Android.widget.button;import Android.widget.toast;import Com.android.settings.R; public class Commonbackgroundsettingfragment extends Fragment{private Button btnbackground1;private static final String Tagetpackagename = "Com.android.wallpaper";p rivate static final int request_set_live_wallpaper = 101;private static Final String TAG = "commonbackgroundsettingfragment"; @Overridepublic void OnCreate (Bundle savedinstancestate) {//TODO Auto-generated method Stubsuper.oncreate (savedinstancestate);} @Overridepublic View Oncreateview (Layoutinflater inflater, ViewGroup container,bundle savedinstancestate) {view Rootview = Inflater.inflate (R.layout.fragmeNt_background_setting, container, false); btnBackground1 = (Button) Rootview.findviewbyid (R.ID.BTNBACKGROUND1); Btnbackground1.requestfocus (); Btnbackground1.setonclicklistener (new View.onclicklistener () {@Overridepublic void OnClick (View v) {Intent Intent = new Intent (); intent.setaction (Wallpapermanager.action_live_wallpaper_chooser); Startactivityforresult (Intent, request_set_live_wallpaper); Toast.maketext (CommonBackgroundSettingFragment.this.getActivity (), getString (r.string.start_background_setting) , Toast.length_long). Show ();}}); return Rootview;} @Overridepublic void Onresume () {//TODO auto-generated method Stubsuper.onresume ();} @Overridepublic void Onactivityresult (int requestcode, int resultcode, Intent data) {if (Requestcode = = Request_set_live_ Wallpaper) {if (Islivewallpaperrunning (This.getactivity (), tagetpackagename)) {Toast.makete                           XT (This.getactivity (), "Livewallpaper is Running", Toast.length_long). Show ();         }else{       Toast.maketext (This.getactivity (), "Livewallpaper is not Running", Toast.length_long). Show ();  }} super.onactivityresult (Requestcode, ResultCode, data);            }/** * Determine if a live wallpaper is already running * * @param context *: Context * @param tagetpackagename * : To determine the package name of the Live wallpaper * @return */public static Boolean islivewallpaperrunning (context context, String Tage Tpackagename) {Wallpapermanager Wallpapermanager = wallpapermanager.getinstance (context);//Get Wallpaper manager Wal Lpaperinfo wallpaperinfo = Wallpapermanager.getwallpaperinfo ();//If the system uses a wallpaper that is live wallpaper then returns the information for that live wallpaper, otherwise it will return NULL if (Wallpa Perinfo! = null) {//If it is a live wallpaper, get the package name of the live wallpaper and compare it with the name of the live wallpaper that you want to know. String Currentlivewallpaperpackagename = Wallpaperi              Nfo.getpackagename ();              if (Currentlivewallpaperpackagename.equals (Tagetpackagename)) {return true;      }} return false; }  }

　

Set the service for live wallpaper:

/** * Livewallpaper Launcher and Preference Template * the MIT License * Copyright (c) mdlab.jp * @author Itoz */pack Age Com.android.settings.common.display;import Java.sql.date;import Java.text.simpledateformat;import Android.annotation.suppresslint;import Android.content.sharedpreferences;import android.content.res.Resources; Import Android.graphics.bitmap;import Android.graphics.bitmapfactory;import Android.graphics.canvas;import Android.graphics.color;import Android.graphics.paint;import Android.os.bundle;import Android.os.Handler;import Android.service.wallpaper.wallpaperservice;import Android.util.log;import Android.view.motionevent;import Android.view.surfaceholder;import android.widget.toast;import COM.ANDROID.SETTINGS.R; @SuppressLint ("NewApi") public class Backgroundsettingservice extends wallpaperservice{private static final String TAG = " Backgroundsettingservice ";                     Private Handler Handler = new Handler ();         @Override public void OnCreate () { LOG.I (TAG, "service OnCreate");      Super.oncreate ();          } @Override public void OnDestroy () {log.i (TAG, "service Ondestory");      Super.ondestroy ();          } @Override Public Engine oncreateengine () {log.i (TAG, "service Oncreateengine");      return new Myengine ();          } private class Myengine extends engine{private float x = 200;          Private float y = 300;          Private Paint Mpaint;                   Private Boolean mvisible = false;              Private Runnable Drawthread = new Runnable () {public void run () {drawwallpaper ();                   }          };              Public Myengine () {log.i (TAG, "myengine");              Mpaint = new Paint ();              Mpaint.setcolor (color.red);              Mpaint.setantialias (TRUE);              Mpaint.setstrokewidth (4);              Mpaint.setstyle (Paint.Style.STROKE);        Mpaint.settextsize (24);  } @Override Public Bundle OnCommand (String action, int x, int y, int z, Bundle extras, Boolean Resul              trequested) {//TODO auto-generated Method Stub log.i (TAG, "OnCommand");          Return Super.oncommand (action, x, Y, z, Extras, resultrequested);              } @Override public void OnCreate (Surfaceholder surfaceholder) {log.i (TAG, "onCreate");              Super.oncreate (Surfaceholder);          The function is to make the wallpaper responsive to touch event, and the default is False settoucheventsenabled (true);              } @Override public void OnDestroy () {log.i (TAG, "OnDestroy");              Super.ondestroy ();          Handler.removecallbacks (Drawthread); } @Override public void onoffsetschanged (float xoffset, float yoffset, float xoffsetstep, float YOFFSE tstep, int xpixeloffset, int ypixeloffset) {//TODO auto-generated Method Stub log.i (TAG, "Onoffset Schanged ");          Super.onoffsetschanged (Xoffset, Yoffset, Xoffsetstep, Yoffsetstep, Xpixeloffset, Ypixeloffset); } @Override public void onvisibilitychanged (Boolean visible) {log.i (TAG, "onvisibilit              Ychanged ");              mvisible = visible;              if (visible) {//Start handler.postdelayed (Drawthread, 50);              } else {handler.removecallbacks (drawthread); }} @Override public void onsurfacechanged (surfaceholder holder, int format, int width, int h              Eight) {log.i (TAG, "onsurfacechanged");          TODO auto-generated Method Stub super.onsurfacechanged (holder, format, width, height); } @Override public void onsurfacecreated (Surfaceholder holder) {log.i (TAG, "onsurfacecreated              ");          super.onsurfacecreated (holder); } @Override public void Onsurfacedestroyed (Surfaceholder holder) {log.i (TAG, "onsurfacedestoryed");              TODO auto-generated Method Stub super.onsurfacedestroyed (holder);          Handler.removecallbacks (Drawthread);              } @Override public void Ontouchevent (Motionevent event) {log.i (TAG, "ontouchevent");          TODO auto-generated Method Stub super.ontouchevent (event); } private void Drawwallpaper () {Surfaceholder holder = Getsurfaceho              Lder ();              Canvas canvas = Holder.lockcanvas ();              Drawtime (canvas);                            Holder.unlockcanvasandpost (canvas);          Cyclic execution handler.postdelayed (drawthread, 50);              } private void Drawtime (canvas canvas) {Date date = new Date (System.currenttimemillis ()); SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss");              String datastr = Sdf.format (date);              Canvas.save ();            Bitmap Bitmap = Bitmapfactory.decoderesource (Getresources (), R.drawable.captain_america);            Bitmap mbitmapdisplayed = Bitmap.createscaledbitmap (Bitmap, Bitmap.getwidth (), Bitmap.getheight (), false);              Canvas.drawbitmap (mbitmapdisplayed, 0, 0, NULL);//Canvas.drawcolor (0XFF00FF00);              Canvas.drawtext (Datastr, x, Y, mpaint);          Canvas.restore (); }      }  }

　

The effect is: The background is "Captain_america.png", while the upper layer has time dynamic update.

20140917 Setting Live Wallpaper