private void updateLockIcon() {
boolean visible = isShown() && KeyguardUpdateMonitor.getInstance(mContext).isScreenOn();
if (visible) {
mTrustDrawable.start();
} else {
mTrustDrawable.stop();
}
if (!visible) {
return;
}
// TODO: Real icon for facelock.
int iconRes =
mUnlockMethodCache.isFaceUnlockRunning()
? com.android.internal.R.drawable.ic_account_circle
: mUnlockMethodCache.isMethodInsecure()
? R.drawable.ic_lock_open_24dp
: R.drawable.ic_lock_24dp;
if (mLastUnlockIconRes != iconRes) {
Drawable icon = mContext.getDrawable(iconRes);
int iconHeight =
getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_icon_height);
int iconWidth = getResources().getDimensionPixelSize(R.dimen.keyguard_affordance_icon_width);
if (icon.getIntrinsicHeight() != iconHeight || icon.getIntrinsicWidth() != iconWidth) {
icon = new IntrinsicSizeDrawable(icon, iconWidth, iconHeight);
}
mLockIcon.setImageDrawable(icon);
}
boolean trustManaged = mUnlockMethodCache.isTrustManaged();
mTrustDrawable.setTrustManaged(trustManaged);
updateLockIconClickability();
}
@Override
protected void onVisibilityChanged(View changedView, int visibility) {
super.onVisibilityChanged(changedView, visibility);
if (isShown()) {
mTrustDrawable.start();
} else {
mTrustDrawable.stop();
}
if (changedView == this && visibility == VISIBLE) {
updateLockIcon();
updateCameraVisibility();
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mTrustDrawable.stop();
}