Android设置锁屏方式为无代码_android.provider.settings 锁屏方式无-优快云博客

本文介绍了如何在Android7.0及更高版本中设置锁屏为无，提供了相应的代码实现方法。

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一，7.0后面代码

public void setLockNone(){

mLockPatternUtils=new LockPatternUtils(getApplicationContext());
mLockPatternUtils.clearEncryptionPassword();
mLockPatternUtils.clearLock(0);
mLockPatternUtils.setLockScreenDisabled(true,0);

}

二、7.0或者之前实现方法：

down vote

I would like to explore exilit answer. From the source, we finally get into this:

mChooseLockSettingsHelper.utils().clearLock(false);
mChooseLockSettingsHelper.utils().setLockScreenDisabled(disabled);

The utils is the com.android.internal.widget.LockPatternUtils

object and we can somehow get it by reflection. Here is the code:

    try{
            Class lockPatternUtilsCls = Class.forName("com.android.internal.widget.LockPatternUtils");
            Constructor lockPatternUtilsConstructor = 
                lockPatternUtilsCls.getConstructor(new Class[]{Context.class});
            Object lockPatternUtils = lockPatternUtilsConstructor.newInstance(MyActivity.this);

            Method clearLockMethod = lockPatternUtils.getClass().getMethod("clearLock", boolean.class);
            Method setLockScreenDisabledMethod = lockPatternUtils.getClass().getMethod("setLockScreenDisabled", boolean.class);

            clearLockMethod.invoke(lockPatternUtils, false);
            setLockScreenDisabledMethod.invoke(lockPatternUtils, true);                 
            Log.d(TAG, "set lock screen to NONE SUC");
    }catch(Exception e){
            Log.e(TAG, "set lock screen to NONE failed", e);
    }

0 down vote

I would like to explore exilit answer. From the source, we finally get into this:

mChooseLockSettingsHelper.utils().clearLock(false);
mChooseLockSettingsHelper.utils().setLockScreenDisabled(disabled);

The utils is the com.android.internal.widget.LockPatternUtils object and we can somehow get it by reflection. Here is the code:

    try{
            Class lockPatternUtilsCls = Class.forName("com.android.internal.widget.LockPatternUtils");
            Constructor lockPatternUtilsConstructor = 
                lockPatternUtilsCls.getConstructor(new Class[]{Context.class});
            Object lockPatternUtils = lockPatternUtilsConstructor.newInstance(MyActivity.this);

            Method clearLockMethod = lockPatternUtils.getClass().getMethod("clearLock", boolean.class);
            Method setLockScreenDisabledMethod = lockPatternUtils.getClass().getMethod("setLockScreenDisabled", boolean.class);

            clearLockMethod.invoke(lockPatternUtils, false);
            setLockScreenDisabledMethod.invoke(lockPatternUtils, true);                 
            Log.d(TAG, "set lock screen to NONE SUC");
    }catch(Exception e){
            Log.e(TAG, "set lock screen to NONE failed", e);
    }