LockIconContainer 是直接在super_notification_shade.xml 里面的:
lock_icon_container
<?xml version="1.0" encoding="utf-8"?>
<!-- This is the notification shade window. -->
<com.android.systemui.statusbar.phone.NotificationShadeWindowView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:sysui="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<com.android.systemui.statusbar.BackDropView
android:id="@+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone"
sysui:ignoreRightInset="true"
>
<ImageView android:id="@+id/backdrop_back"
android:layout_width="match_parent"
android:scaleType="centerCrop"
android:layout_height="match_parent" />
<ImageView android:id="@+id/backdrop_front"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:visibility="invisible" />
</com.android.systemui.statusbar.BackDropView>
<com.android.systemui.statusbar.ScrimView
android:id="@+id/scrim_behind"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:importantForAccessibility="no"
sysui:ignoreRightInset="true"
/>
<include layout="@layout/status_bar_expanded"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="invisible" />
<include layout="@layout/brightness_mirror" />
<com.android.systemui.statusbar.ScrimView
android:id="@+id/scrim_in_front"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:importantForAccessibility="no"
sysui:ignoreRightInset="true"
/>
<LinearLayout
android:id="@+id/lock_icon_container"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/status_bar_height"
android:layout_gravity="top|center_horizontal">
<com.android.systemui.statusbar.phone.LockIcon
android:id="@+id/lock_icon"
android:layout_width="@dimen/keyguard_lock_width"
android:layout_height="@dimen/keyguard_lock_height"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/keyguard_lock_padding"
android:contentDescription="@string/accessibility_unlock_button"
android:src="@*android:drawable/ic_lock"
android:scaleType="center" />
<com.android.keyguard.KeyguardMessageArea
android:id="@+id/keyguard_message_area"
style="@style/Keyguard.TextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyguard_lock_padding"
android:gravity="center"
android:singleLine="true"
android:ellipsize="marquee"
android:focusable="true" />
</LinearLayout>
</com.android.systemui.statusbar.phone.NotificationShadeWindowView>
控制显示与否:
会基于StatusBarState的状态来更新 updateLockIcon
状态有:
/**
* The status bar is in the "normal" shade mode.
*/
public static final int SHADE = 0;
/**
* Status bar is currently the Keyguard.
*/
public static final int KEYGUARD = 1;
/**
* Status bar is in the special mode, where it is fully interactive but still locked. So
* dismissing the shade will still show the bouncer.
*/
public static final int SHADE_LOCKED = 2;
/**
* Status bar is locked and shows the full screen user switcher.
*/
public static final int FULLSCREEN_USER_SWITCHER = 3;