1 /*
2  * Copyright 2013 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.example.android.interactivechart;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 import android.view.Menu;
22 import android.view.MenuItem;
23 
24 public class MainActivity extends Activity {
25     private InteractiveLineGraphView mGraphView;
26 
onCreate(Bundle savedInstanceState)27     protected void onCreate(Bundle savedInstanceState) {
28         super.onCreate(savedInstanceState);
29         setContentView(R.layout.activity_main);
30         mGraphView = (InteractiveLineGraphView) findViewById(R.id.chart);
31     }
32 
33     @Override
onCreateOptionsMenu(Menu menu)34     public boolean onCreateOptionsMenu(Menu menu) {
35         super.onCreateOptionsMenu(menu);
36         getMenuInflater().inflate(R.menu.main, menu);
37         return true;
38     }
39 
40     @Override
onOptionsItemSelected(MenuItem item)41     public boolean onOptionsItemSelected(MenuItem item) {
42         switch (item.getItemId()) {
43             case R.id.action_zoom_in:
44                 mGraphView.zoomIn();
45                 return true;
46 
47             case R.id.action_zoom_out:
48                 mGraphView.zoomOut();
49                 return true;
50 
51             case R.id.action_pan_left:
52                 mGraphView.panLeft();
53                 return true;
54 
55             case R.id.action_pan_right:
56                 mGraphView.panRight();
57                 return true;
58 
59             case R.id.action_pan_up:
60                 mGraphView.panUp();
61                 return true;
62 
63             case R.id.action_pan_down:
64                 mGraphView.panDown();
65                 return true;
66         }
67 
68         return super.onOptionsItemSelected(item);
69     }
70 }
71