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Commit 5c9fabbd authored by Orhan Uysal's avatar Orhan Uysal
Browse files

Update status bar icon colours... 

depending on the wallpaper hint.

Test: Change the wallpaper and observer light/dark colours of status bar
icons
Flag: com.android.window.flags.enable_desktop_windowing_wallpaper_activity
Bug: 415332896

Change-Id: Ida39e40c3e18f81364ac69cb855221b94babc847
parent 2583ac54

libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopWallpaperActivity.kt

+38 −0
Original line number Diff line number Diff line
@@ -17,12 +17,16 @@ 
package com.android.wm.shell.desktopmode



import android.app.TaskInfo

import android.app.WallpaperColors

import android.app.WallpaperManager

import android.content.ComponentName

import android.os.Bundle

import android.util.Log

import android.view.WindowManager

import android.window.DesktopExperienceFlags

import androidx.activity.addCallback

import androidx.core.view.WindowCompat

import androidx.core.view.WindowInsetsControllerCompat

import androidx.fragment.app.FragmentActivity



/**
@@ -36,6 +40,13 @@ import androidx.fragment.app.FragmentActivity 
 */

class DesktopWallpaperActivity : FragmentActivity() {



    private var wallpaperManager: WallpaperManager? = null



    private val wallpaperColorsListener =

        WallpaperManager.OnColorsChangedListener { colors, which ->

            updateStatusBarIconColors(colors)

        }



    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        Log.d(TAG, "onCreate")
@@ -55,6 +66,20 @@ class DesktopWallpaperActivity : FragmentActivity() { 
        ) {

            onBackPressedDispatcher.addCallback(this) { moveTaskToBack(true) }

        }



        // Handle wallpaper color changes

        wallpaperManager = getSystemService(WallpaperManager::class.java)

        wallpaperManager?.addOnColorsChangedListener(wallpaperColorsListener, mainThreadHandler)



        // Set the initial color of status bar icons on activity creation.

        updateStatusBarIconColors(

            wallpaperManager?.getWallpaperColors(WallpaperManager.FLAG_SYSTEM)

        )

    }



    override fun onDestroy() {

        super.onDestroy()

        wallpaperManager?.removeOnColorsChangedListener(wallpaperColorsListener)

    }



    override fun onTopResumedActivityChanged(isTopResumedActivity: Boolean) {
@@ -73,6 +98,19 @@ class DesktopWallpaperActivity : FragmentActivity() { 
        }

    }



    /** Set the status bar icon colours depending on wallpaper hint. */

    private fun updateStatusBarIconColors(wallpaperColors: WallpaperColors?) {

        wallpaperColors?.colorHints?.let {

            getWindowInsetsController().isAppearanceLightStatusBars =

                (it and WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0

        }

    }



    private fun getWindowInsetsController(): WindowInsetsControllerCompat {

        val window = getWindow()

        return WindowCompat.getInsetsController(window, window.decorView)

    }



    companion object {

        private const val TAG = "DesktopWallpaperActivity"

        private const val SYSTEM_UI_PACKAGE_NAME = "com.android.systemui"