Android一键锁屏实现详解

在学习Android一键锁屏功能时,我们可以通过以下代码实现锁屏,并且在锁屏前利用SystemClock.sleep(5000);让系统延迟5秒。

实现步骤:

  1. 引入必要的权限:在Android项目中,确保应用有锁屏权限。

  2. 添加延时操作:在代码中使用SystemClock.sleep(5000);以达到5秒后再锁屏的效果。

  3. 锁屏代码示例

SystemClock.sleep(5000); // 延时5秒
DevicePolicyManager deviceManager = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
ComponentName compName = new ComponentName(this, YourAdminReceiver.class);
if (deviceManager.isAdminActive(compName)) {
    deviceManager.lockNow();
}

以上代码将会在延时后执行锁屏功能,适用于需要在指定时间后自动锁屏的应用需求。

zip
锁屏.zip 预估大小:42个文件
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锁屏 文件夹
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.project 842B
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project.properties 563B
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src 文件夹
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com 文件夹
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d 文件夹
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LocktheScreen 文件夹
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MainActivity.java 1KB
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LockReceiver.java 715B
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AndroidManifest.xml 1KB
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res 文件夹
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drawable-ldpi 文件夹
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xml 文件夹
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lock_screen.xml 535B
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drawable-hdpi 文件夹
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ic_launcher.png 1KB
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values-v11 文件夹
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styles.xml 334B
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drawable-mdpi 文件夹
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ic_launcher.png 759B
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layout 文件夹
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activity_main.xml 466B
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drawable-xxhdpi 文件夹
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ic_launcher.png 2KB
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drawable-xhdpi 文件夹
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ic_launcher.png 1KB
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values 文件夹
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strings.xml 178B
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styles.xml 697B
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values-v14 文件夹
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styles.xml 391B
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.settings 文件夹
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org.eclipse.jdt.core.prefs 177B
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assets 文件夹
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gen 文件夹
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com 文件夹
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d 文件夹
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LocktheScreen 文件夹
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BuildConfig.java 161B
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R.java 2KB
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libs 文件夹
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android-support-v4.jar 964KB
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.classpath 475B
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proguard-project.txt 781B
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ic_launcher-web.png 10KB
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bin 文件夹
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resources.ap_ 10KB
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classes 文件夹
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com 文件夹
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d 文件夹
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LocktheScreen 文件夹
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R$layout.class 406B
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R$style.class 434B
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BuildConfig.class 347B
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R$drawable.class 410B
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R$attr.class 343B
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LockReceiver.class 961B
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R$xml.class 395B
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R.class 589B
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R$string.class 436B
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MainActivity.class 2KB
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AndroidManifest.xml 1KB
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dexedLibs 文件夹
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annotations-20f58f9ffb447171f1b76e4693e7d1ec.jar 910B
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android-support-v4-3d102f144c17cfddd03f71193b141540.jar 332KB
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res 文件夹
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crunch 文件夹
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drawable-hdpi 文件夹
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ic_launcher.png 1KB
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drawable-mdpi 文件夹
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ic_launcher.png 888B
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drawable-xxhdpi 文件夹
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ic_launcher.png 2KB
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drawable-xhdpi 文件夹
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ic_launcher.png 2KB
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锁屏.apk 348KB
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classes.dex 1.28MB
...
zip 文件大小:1.84MB