您好,登錄后才能下訂單哦!
這篇文章主要介紹Android在App中啟動(dòng)系統(tǒng)鬧鐘的案例,文中介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們一定要看完!
由于不同Android手機(jī)廠商提供的系統(tǒng)鬧鐘包名都不一致,所以只能通過(guò)過(guò)濾當(dāng)前手機(jī)所有的應(yīng)用,以確定鬧鐘應(yīng)用的包名,進(jìn)而啟動(dòng)它。
這里采用的過(guò)濾規(guī)則是:系統(tǒng)應(yīng)用 && 應(yīng)用的PackageName包含"widget" 和 "clock"
1、布局文件 activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity"> <Button android:id="@+id/start_system_clock_bt" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="啟動(dòng)系統(tǒng)鬧鐘" /> </RelativeLayout>
2、MainActivity.java
package com.demo.cxc.systemclocksample; import android.content.Intent; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.Toast; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private Button startSystemClockButton = null; private List<PackageInfo> allPackageInfos;//系統(tǒng)安裝所有軟件 private List<PackageInfo> clockPackageInfos;//系統(tǒng)時(shí)鐘軟件 private static final int HANDLE_MESSAGE_KEY = 1001; private Handler myHandler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); if (msg != null) { switch (msg.what) { case HANDLE_MESSAGE_KEY: Toast.makeText(getApplicationContext(), "--app scan over--", Toast.LENGTH_SHORT).show(); Log.d("CXC", "--app scan over--"); break; default: break; } } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initViews(); initData(); //begin scan installed applications; //// TODO: 16/1/15 new Thread(new ScanInstalledAppsRunnable()).start(); } private void initViews() { startSystemClockButton = (Button) findViewById(R.id.start_system_clock_bt); startSystemClockButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //// TODO: 16/1/15 startSystemClock(); } }); } private void initData() { clockPackageInfos = new ArrayList<PackageInfo>(); } class ScanInstalledAppsRunnable implements Runnable { @Override public void run() { allPackageInfos = getPackageManager() .getInstalledPackages(0); if (allPackageInfos == null || allPackageInfos.size() == 0) { //// TODO: 16/1/15 todo nothing return; } if (clockPackageInfos == null) { clockPackageInfos = new ArrayList<PackageInfo>(); } PackageInfo tempPackageInfo = null; for (int i = 0; i < allPackageInfos.size(); i++) { tempPackageInfo = allPackageInfos.get(i); if (tempPackageInfo != null) { if (isSystemApplication(tempPackageInfo.applicationInfo) && isClockApplication(tempPackageInfo.packageName)) { clockPackageInfos.add(tempPackageInfo); } } } Message message = myHandler.obtainMessage(); message.what = MainActivity.HANDLE_MESSAGE_KEY; myHandler.sendMessage(message); } } private boolean isSystemApplication(ApplicationInfo applicationInfo) { boolean isSystemApp = false; if (applicationInfo != null) { if ((applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0 || (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { isSystemApp = true; } } return isSystemApp; } private boolean isClockApplication(String packageName) { boolean isClockApp = false; if (packageName != null && packageName.contains("clock") && !packageName.contains("widget")) { isClockApp = true; } return isClockApp; } private void startSystemClock() { if (clockPackageInfos == null || clockPackageInfos.size() == 0) { Toast.makeText(getApplicationContext(), "--啟動(dòng)系統(tǒng)鬧鐘失敗1--", Toast.LENGTH_SHORT).show(); return; } Log.d("CXC", "---clock package size :" + clockPackageInfos.size()); Log.d("CXC", "---clock package [0] :" + clockPackageInfos.get(0).packageName); try { Intent startSysClockIntent = getPackageManager().getLaunchIntentForPackage(clockPackageInfos.get(0).packageName); startActivity(startSysClockIntent); } catch (Exception e) { Toast.makeText(getApplicationContext(), "--啟動(dòng)系統(tǒng)鬧鐘失敗2--", Toast.LENGTH_SHORT).show(); } } }
以上是“Android在App中啟動(dòng)系統(tǒng)鬧鐘的案例”這篇文章的所有內(nèi)容,感謝各位的閱讀!希望分享的內(nèi)容對(duì)大家有幫助,更多相關(guān)知識(shí),歡迎關(guān)注億速云行業(yè)資訊頻道!
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。