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      1 
      2 package com.google.android.example.locktasktests;
      3 
      4 import android.app.Activity;
      5 import android.app.ActivityManager;
      6 import android.content.Context;
      7 import android.content.Intent;
      8 import android.os.Bundle;
      9 import android.os.Handler;
     10 import android.os.Looper;
     11 import android.view.View;
     12 
     13 public class MainActivity extends Activity {
     14 
     15     private final static String TAG = "LockTaskTests";
     16     Runnable mBackgroundPolling;
     17     boolean mRunning;
     18     Handler mHandler;
     19 
     20     @Override
     21     protected void onCreate(Bundle savedInstanceState) {
     22         super.onCreate(savedInstanceState);
     23         setContentView(R.layout.activity_main);
     24         mBackgroundPolling = new Runnable() {
     25             // Poll lock task state and set background pink if locked, otherwise white.
     26             @Override
     27             public void run() {
     28                 if (!mRunning) {
     29                     return;
     30                 }
     31                 ActivityManager activityManager =
     32                         (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
     33                 final int color = activityManager.getLockTaskModeState() !=
     34                         ActivityManager.LOCK_TASK_MODE_NONE ? 0xFFFFC0C0 : 0xFFFFFFFF;
     35                 findViewById(R.id.root_launch).setBackgroundColor(color);
     36                 mHandler.postDelayed(this, 500);
     37             }
     38         };
     39         mHandler = new Handler(Looper.getMainLooper());
     40     }
     41 
     42     @Override
     43     public void onResume() {
     44         super.onResume();
     45         mRunning = true;
     46         mBackgroundPolling.run();
     47     }
     48 
     49     @Override
     50     public void onPause() {
     51         super.onPause();
     52         mRunning = false;
     53     }
     54 
     55     public void onButtonPressed(View v) {
     56         Class activity = null;
     57         switch (v.getId()) {
     58             case R.id.button_default:
     59                 activity = LockDefaultActivity.class;
     60                 break;
     61             case R.id.button_never:
     62                 activity = LockTaskNeverActivity.class;
     63                 break;
     64             case R.id.button_whitelist:
     65                 activity = LockWhitelistedActivity.class;
     66                 break;
     67             case R.id.button_always:
     68                 activity = LockAtLaunchActivity.class;
     69                 break;
     70         }
     71         Intent intent = new Intent(this, activity);
     72         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     73         startActivity(intent);
     74     }
     75 
     76     public void onToast(View v) {
     77         showLockTaskEscapeMessage();
     78     }
     79 }
     80