1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings; 18 19 import android.app.Activity; 20 import android.app.WallpaperColors; 21 import android.app.WallpaperManager; 22 import android.app.WallpaperManager.OnColorsChangedListener; 23 import android.content.BroadcastReceiver; 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.IntentFilter; 27 import android.content.pm.ResolveInfo; 28 import android.os.AsyncTask; 29 import android.os.Bundle; 30 import android.os.Handler; 31 import android.os.Message; 32 import android.os.PowerManager; 33 import android.os.SystemClock; 34 import android.os.UserHandle; 35 import android.os.UserManager; 36 import android.provider.Settings; 37 import android.util.Log; 38 import android.view.View; 39 import android.view.WindowManager.LayoutParams; 40 import android.view.animation.AnimationUtils; 41 42 import java.util.Objects; 43 44 public class FallbackHome extends Activity { 45 private static final String TAG = "FallbackHome"; 46 private static final int PROGRESS_TIMEOUT = 2000; 47 48 private boolean mProvisioned; 49 private WallpaperManager mWallManager; 50 51 private final Runnable mProgressTimeoutRunnable = () -> { 52 View v = getLayoutInflater().inflate( 53 R.layout.fallback_home_finishing_boot, null /* root */); 54 setContentView(v); 55 v.setAlpha(0f); 56 v.animate() 57 .alpha(1f) 58 .setDuration(500) 59 .setInterpolator(AnimationUtils.loadInterpolator( 60 this, android.R.interpolator.fast_out_slow_in)) 61 .start(); 62 getWindow().addFlags(LayoutParams.FLAG_KEEP_SCREEN_ON); 63 }; 64 65 private final OnColorsChangedListener mColorsChangedListener = new OnColorsChangedListener() { 66 @Override 67 public void onColorsChanged(WallpaperColors colors, int which) { 68 if (colors != null) { 69 final View decorView = getWindow().getDecorView(); 70 decorView.setSystemUiVisibility( 71 updateVisibilityFlagsFromColors(colors, decorView.getSystemUiVisibility())); 72 mWallManager.removeOnColorsChangedListener(this); 73 } 74 } 75 }; 76 77 @Override onCreate(Bundle savedInstanceState)78 protected void onCreate(Bundle savedInstanceState) { 79 super.onCreate(savedInstanceState); 80 81 // Set ourselves totally black before the device is provisioned so that 82 // we don't flash the wallpaper before SUW 83 mProvisioned = Settings.Global.getInt(getContentResolver(), 84 Settings.Global.DEVICE_PROVISIONED, 0) != 0; 85 final int flags; 86 if (!mProvisioned) { 87 setTheme(R.style.FallbackHome_SetupWizard); 88 flags = View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION 89 | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY; 90 } else { 91 flags = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN 92 | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; 93 } 94 95 mWallManager = getSystemService(WallpaperManager.class); 96 if (mWallManager == null) { 97 Log.w(TAG, "Wallpaper manager isn't ready, can't listen to color changes!"); 98 } else { 99 loadWallpaperColors(flags); 100 } 101 getWindow().getDecorView().setSystemUiVisibility(flags); 102 103 registerReceiver(mReceiver, new IntentFilter(Intent.ACTION_USER_UNLOCKED)); 104 maybeFinish(); 105 } 106 107 @Override onResume()108 protected void onResume() { 109 super.onResume(); 110 if (mProvisioned) { 111 mHandler.postDelayed(mProgressTimeoutRunnable, PROGRESS_TIMEOUT); 112 } 113 } 114 115 @Override onPause()116 protected void onPause() { 117 super.onPause(); 118 mHandler.removeCallbacks(mProgressTimeoutRunnable); 119 } 120 onDestroy()121 protected void onDestroy() { 122 super.onDestroy(); 123 unregisterReceiver(mReceiver); 124 if (mWallManager != null) { 125 mWallManager.removeOnColorsChangedListener(mColorsChangedListener); 126 } 127 } 128 129 private BroadcastReceiver mReceiver = new BroadcastReceiver() { 130 @Override 131 public void onReceive(Context context, Intent intent) { 132 maybeFinish(); 133 } 134 }; 135 loadWallpaperColors(int flags)136 private void loadWallpaperColors(int flags) { 137 final AsyncTask loadWallpaperColorsTask = new AsyncTask<Object, Void, Integer>() { 138 @Override 139 protected Integer doInBackground(Object... params) { 140 final WallpaperColors colors = 141 mWallManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM); 142 143 // Use a listener to wait for colors if not ready yet. 144 if (colors == null) { 145 mWallManager.addOnColorsChangedListener(mColorsChangedListener, 146 null /* handler */); 147 return null; 148 } 149 return updateVisibilityFlagsFromColors(colors, flags); 150 } 151 152 @Override 153 protected void onPostExecute(Integer flagsToUpdate) { 154 if (flagsToUpdate == null) { 155 return; 156 } 157 getWindow().getDecorView().setSystemUiVisibility(flagsToUpdate); 158 } 159 }; 160 loadWallpaperColorsTask.execute(); 161 } 162 maybeFinish()163 private void maybeFinish() { 164 if (getSystemService(UserManager.class).isUserUnlocked()) { 165 final Intent homeIntent = new Intent(Intent.ACTION_MAIN) 166 .addCategory(Intent.CATEGORY_HOME); 167 final ResolveInfo homeInfo = getPackageManager().resolveActivity(homeIntent, 0); 168 if (Objects.equals(getPackageName(), homeInfo.activityInfo.packageName)) { 169 if (UserManager.isSplitSystemUser() 170 && UserHandle.myUserId() == UserHandle.USER_SYSTEM) { 171 // This avoids the situation where the system user has no home activity after 172 // SUW and this activity continues to throw out warnings. See b/28870689. 173 return; 174 } 175 Log.d(TAG, "User unlocked but no home; let's hope someone enables one soon?"); 176 mHandler.sendEmptyMessageDelayed(0, 500); 177 } else { 178 Log.d(TAG, "User unlocked and real home found; let's go!"); 179 getSystemService(PowerManager.class).userActivity( 180 SystemClock.uptimeMillis(), false); 181 finish(); 182 } 183 } 184 } 185 186 // Set the system ui flags to light status bar if the wallpaper supports dark text to match 187 // current system ui color tints. updateVisibilityFlagsFromColors(WallpaperColors colors, int flags)188 private int updateVisibilityFlagsFromColors(WallpaperColors colors, int flags) { 189 if ((colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0) { 190 return flags | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR 191 | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR; 192 } 193 return flags & ~(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) 194 & ~(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR); 195 } 196 197 private Handler mHandler = new Handler() { 198 @Override 199 public void handleMessage(Message msg) { 200 maybeFinish(); 201 } 202 }; 203 } 204