Android如何在App中启动系统闹钟

2023-09-17 09:03:05 69

packagecom.demo.cxc.systemclocksample; importandroid.content.Intent; importandroid.content.pm.ApplicationInfo; importandroid.content.pm.PackageInfo; importandroid.os.Bundle; importandroid.os.Handler; importandroid.os.Message; importandroid.support.v7.app.AppCompatActivity; importandroid.util.Log; importandroid.view.View; importandroid.widget.Button; importandroid.widget.Toast; importjava.util.ArrayList; importjava.util.List; publicclassMainActivityextendsAppCompatActivity{ privateButtonstartSystemClockButton=null; privateListallPackageInfos;//系统安装所有软件 privateListclockPackageInfos;//系统时钟软件 privatestaticfinalintHANDLE_MESSAGE_KEY=1001; privateHandlermyHandler=newHandler(){ @Override publicvoidhandleMessage(Messagemsg){ super.handleMessage(msg); if(msg!=null){ switch(msg.what){ caseHANDLE_MESSAGE_KEY: Toast.makeText(getApplicationContext(),"--appscanover--",Toast.LENGTH_SHORT).show(); Log.d("CXC","--appscanover--"); break; default: break; } } } }; @Override protectedvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initViews(); initData(); //beginscaninstalledapplications; ////TODO:16/1/15 newThread(newScanInstalledAppsRunnable()).start(); } privatevoidinitViews(){ startSystemClockButton=(Button)findViewById(R.id.start_system_clock_bt); startSystemClockButton.setOnClickListener(newView.OnClickListener(){ @Override publicvoidonClick(Viewv){ ////TODO:16/1/15 startSystemClock(); } }); } privatevoidinitData(){ clockPackageInfos=newArrayList(); } classScanInstalledAppsRunnableimplementsRunnable{ @Override publicvoidrun(){ allPackageInfos=getPackageManager() .getInstalledPackages(0); if(allPackageInfos==null||allPackageInfos.size()==0){ ////TODO:16/1/15todonothing return; } if(clockPackageInfos==null){ clockPackageInfos=newArrayList(); } PackageInfotempPackageInfo=null; for(inti=0;i

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Android如何在App中启动系统闹钟

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