android基础入门教程0.9壁纸管理器

title:Android基础入门——1.1背景相关与系统架构分]categories:]本节引的 WallpaperManager的基本setBitmap(Bitmapbitmap)：将壁纸设置为bitmapsetResource(intresid)：将壁纸设置为resid ..WallpaperManagerwpManager=WallpaperManager.get.<uses.<usespermissionstartActivity(ntent.createChooser(choosentent"纸startActivity(ntent.createChooser(choosentent"纸}.Buttonbtn_set=(Button)findViewBybtn_set.setOnClickListener(newView.OnClickListener()publicvoidonClick(Viewv)ntentchoosentent=ntent.ACT运行效果图将Activity的背景设置为壁纸背..protectedvoidonCreate(Bundlesaved{;super.onCreate(saved}..<activity定时换壁纸的 ——10.5AlarmManager(闹钟服务)进行学习运行效果图代码实现首先来写一个定时换壁纸的..*CreatedbyJayon205//300publicclassWallPaperServiceextendsServiceprivateintcurrent=privateint[]papers=newint[]{R.mipmap.gui_ privateWallpaperManagerwManager 务 publicvoidonCreate() wManager=WallpaperManager.get}publicmand(ntentintent,intflags,intstart{if(current>=4)current=0; 2}catch(ExceptionreturnSTART_ST}BinderonBind(ntentintent)return}}接着撸个简单的布局，三个 android:id="@ android:text="开启自动换壁纸"/>.android:id="@android:text="关闭自动换壁纸"/>android:id="@ 2 android:text="清除壁纸"/>接着是的Activity，在这里实例化aManager并设置定件 publicclassMainActivityextends tivityimplementsView.OnClickListener{privateButtonprivateButtonprivateButtonprivateAlarmManagerprivatePendingntentpi; protectedvoidonCreate(BundlesavednstanceState) super.onCreate(savedaManager=(AlarmManager)getSystemService(ALARM_SERV ntentintent=newntent(MainActivity.this,WallPaperService.pi=Pendingntent.getService(MainActivity.this,0,intent, privatevoidbindViews()btn_on=(Button)findViewBybtn_off=(Button)findViewBybtn_clean=(Button)findViewBy publicvoidonClick(Viewv)switch(v.getd())case aManager.setRepeating(AlarmManager.RTC_WAKEUP,0,3000,Toast.makeText(MainActivity.this,"自动更换壁纸设置成功",case4casetryWallpaperManager.getToast.makeText(MainActivity.this,"清除壁纸成功~",}catch(OExceptione)}5}}}最后别忘了加上设置壁纸的权限以及为的Service进行..<usespermissionandroid:name="a