src/tools/android/memconsumer/java/src/org/chromium/memconsumer/MemConsumer.java

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 package org.chromium.memconsumer;
   6
   7 import android.app.Activity;
   8 import android.content.Intent;
   9 import android.content.ServiceConnection;
  10 import android.content.ComponentName;
  11 import android.content.Context;
  12 import android.os.Bundle;
  13 import android.os.IBinder;
  14 import android.view.KeyEvent;
  15 import android.view.Gravity;
  16 import android.view.View;
  17 import android.widget.EditText;
  18 import android.widget.NumberPicker;
  19 import android.widget.TextView;
  20
  21 public class MemConsumer extends Activity {
  22     public static final String NOTIFICATION_ACTION =
  23             MemConsumer.class.toString() + ".NOTIFICATION";
  24
  25     private ResidentService mResidentService;
  26     private int mMemory = 0;
  27     private NumberPicker mMemoryPicker;
  28
  29     private ServiceConnection mServiceConnection = new ServiceConnection() {
  30
  31         public void onServiceConnected(ComponentName name,
  32                                        IBinder binder) {
  33             mResidentService = ((ResidentService.ServiceBinder)binder).getService();
  34             mResidentService.useMemory(mMemory);
  35         }
  36
  37         public void onServiceDisconnected(ComponentName name) {
  38             mResidentService = null;
  39         }
  40     };
  41
  42     @Override
  43     protected void onCreate(Bundle savedInstanceState) {
  44         super.onCreate(savedInstanceState);
  45         mMemoryPicker = new NumberPicker(this);
  46         mMemoryPicker.setGravity(Gravity.CENTER);
  47         mMemoryPicker.setMaxValue(Integer.MAX_VALUE);
  48         mMemoryPicker.setMinValue(0);
  49         mMemoryPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
  50             @Override
  51             public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
  52                 updateMemoryConsumption(picker.getValue());
  53             }
  54         });
  55         for (int i = 0; i < mMemoryPicker.getChildCount(); i++) {
  56             View child = mMemoryPicker.getChildAt(i);
  57             if (child instanceof EditText) {
  58                 EditText editText = (EditText)child;
  59                 editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
  60                     @Override
  61                     public boolean onEditorAction (TextView v, int actionId, KeyEvent event) {
  62                         if (v.getText().length() > 0) {
  63                             updateMemoryConsumption(Integer.parseInt(v.getText().toString()));
  64                         }
  65                         return false;
  66                     }
  67                 });
  68             }
  69         }
  70         setContentView(mMemoryPicker);
  71         onNewIntent(getIntent());
  72     }
  73
  74     @Override
  75     protected void onNewIntent(Intent intent) {
  76         super.onNewIntent(intent);
  77         if (intent.getAction() == NOTIFICATION_ACTION) {
  78             updateMemoryConsumption(0);
  79             return;
  80         }
  81         if (!intent.hasExtra("memory")) return;
  82         updateMemoryConsumption(intent.getIntExtra("memory", 0));
  83     }
  84
  85     void updateMemoryConsumption(int memory) {
  86         if (memory == mMemory || memory < 0) return;
  87         mMemory = memory;
  88         mMemoryPicker.setValue(mMemory);
  89         if (mResidentService == null) {
  90             if (mMemory > 0) {
  91                 Intent resident = new Intent();
  92                 resident.setClass(this, ResidentService.class);
  93                 startService(resident);
  94                 bindService(new Intent(this, ResidentService.class),
  95                             mServiceConnection,
  96                             Context.BIND_AUTO_CREATE);
  97             }
  98         } else {
  99             mResidentService.useMemory(mMemory);
 100             if (mMemory == 0) {
 101                 unbindService(mServiceConnection);
 102                 stopService(new Intent(this, ResidentService.class));
 103                 mResidentService = null;
 104             }
 105         }
 106     }
 107 }