| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package com.google.android.example.locktasktests; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.view.View; |
| import android.widget.EditText; |
| |
| public class LaunchActivity extends Activity { |
| |
| Runnable mBackgroundPolling; |
| boolean mRunning; |
| Handler mHandler; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(R.layout.activity_launch); |
| mBackgroundPolling = new Runnable() { |
| @Override |
| public void run() { |
| if (!mRunning) { |
| return; |
| } |
| ActivityManager activityManager = |
| (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); |
| final int color = activityManager.getLockTaskModeState() != |
| ActivityManager.LOCK_TASK_MODE_NONE ? 0xFFFFC0C0 : 0xFFFFFFFF; |
| findViewById(R.id.root_launch).setBackgroundColor(color); |
| mHandler.postDelayed(this, 1000); |
| } |
| }; |
| mHandler = new Handler(Looper.getMainLooper()); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| mRunning = true; |
| mBackgroundPolling.run(); |
| } |
| |
| @Override |
| public void onPause() { |
| super.onPause(); |
| mRunning = false; |
| } |
| |
| public void onTryLock(View view) { |
| startLockTask(); |
| } |
| |
| public void onTryUnlock(View view) { |
| stopLockTask(); |
| } |
| |
| public void onLaunchMain(View view) { |
| Intent intent = new Intent(this, MainActivity.class); |
| startActivity(intent); |
| } |
| } |