1 /*
2  * Copyright (C) 2008 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.apis.app;
18 
19 // Need the following import to get access to the app resources, since this
20 // class is in a sub-package.
21 import com.example.android.apis.R;
22 
23 import android.app.Activity;
24 import android.os.Bundle;
25 import android.view.View;
26 import android.view.Window;
27 import android.view.View.OnClickListener;
28 import android.widget.Button;
29 import android.widget.ImageView;
30 import android.widget.LinearLayout;
31 
32 /**
33  * <h3>Dialog Activity</h3>
34  *
35  * <p>This demonstrates the how to write an activity that looks like
36  * a pop-up dialog.</p>
37  */
38 public class DialogActivity extends Activity {
39     /**
40      * Initialization of the Activity after it is first created.  Must at least
41      * call {@link android.app.Activity#setContentView setContentView()} to
42      * describe what is to be displayed in the screen.
43      */
44     @Override
onCreate(Bundle savedInstanceState)45 	protected void onCreate(Bundle savedInstanceState) {
46         // Be sure to call the super class.
47         super.onCreate(savedInstanceState);
48 
49         requestWindowFeature(Window.FEATURE_LEFT_ICON);
50 
51 
52         // See assets/res/any/layout/dialog_activity.xml for this
53         // view layout definition, which is being set here as
54         // the content of our screen.
55         setContentView(R.layout.dialog_activity);
56         getWindow().setTitle("This is just a test");
57 
58         getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
59                 android.R.drawable.ic_dialog_alert);
60 
61         Button button = (Button)findViewById(R.id.add);
62         button.setOnClickListener(mAddContentListener);
63         button = (Button)findViewById(R.id.remove);
64         button.setOnClickListener(mRemoveContentListener);
65     }
66 
67     private OnClickListener mAddContentListener = new OnClickListener() {
68         public void onClick(View v) {
69             LinearLayout layout = (LinearLayout)findViewById(R.id.inner_content);
70             ImageView iv = new ImageView(DialogActivity.this);
71             iv.setImageDrawable(getResources().getDrawable(R.drawable.icon48x48_1));
72             iv.setPadding(4, 4, 4, 4);
73             layout.addView(iv);
74         }
75     };
76 
77     private OnClickListener mRemoveContentListener = new OnClickListener() {
78         public void onClick(View v) {
79             LinearLayout layout = (LinearLayout)findViewById(R.id.inner_content);
80             int num = layout.getChildCount();
81             if (num > 0) {
82                 layout.removeViewAt(num-1);
83             }
84         }
85     };
86 }
87