[英]Regarding screen lock and unlock
我正在做一個鎖定和解鎖屏幕的應用程序。 我正在使用disableKeygaurd和reeanbleKeygaurd進行鎖定和解鎖。 下面我用來解鎖的代碼:
if(mKeyguardLock == null){
mKeyGuardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
mKeyguardLock = mKeyGuardManager.newKeyguardLock("****");
mKeyguardLock.disableKeyguard();
}
和鎖:
if(mKeyguardLock != null){
mKeyguardLock.reenableKeyguard();
mKeyguardLock = null;
}
一切正常。 但是問題是當用戶通過拖動keygaurd意外解鎖屏幕時(不使用我的應用程序),那么我的應用程序將不會下次鎖定屏幕。.當用戶也通過拖動keygaurd解鎖時,我想使用我的應用程序。 我該怎么辦? 提前致謝
Try This:
private KeyguardManager mKeyguardManager;
private KeyguardManager.KeyguardLock mKeyguardLock;
private static final String TAG = "ALERTLock";
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
int flags = getFlagsForVersion();
getWindow().addFlags(flags);
mKeyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
}
private int getFlagsForVersion() {
final String possibleFlags[] = new String[] {
"FLAG_SHOW_WHEN_LOCKED",
"FLAG_DISMISS_KEYGUARD",
"FLAG_TURN_SCREEN_ON"
};
int flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
for(String flag:possibleFlags) {
try {
Field field = WindowManager.LayoutParams.class.getField(flag);
int value = field.getInt(null);
flags |= value;
}
catch(NoSuchFieldException e) { }
catch(IllegalAccessException e) { }
}
return flags;
}
private synchronized void enableKeyguard() {
if (mKeyguardLock != null) {
mKeyguardLock.reenableKeyguard();
mKeyguardLock = null;
}
}
private synchronized void disableKeyguard() {
if (mKeyguardLock == null) {
mKeyguardLock = mKeyguardManager.newKeyguardLock(TAG);
mKeyguardLock.disableKeyguard();
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
disableKeyguard();
}
@Override
public void onResume() {
super.onResume();
disableKeyguard();
}
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