DrawableBgMinSize.java revision 1d3165f10b12165f02b7015ac1a817c5f60e6399 
1/*
2 * Copyright (C) 2007 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
17package android.view;
18
19import com.android.frameworks.coretests.R;
20
21import android.app.Activity;
22import android.graphics.drawable.Drawable;
23import android.os.Bundle;
24import android.view.View;
25import android.view.View.OnClickListener;
26import android.widget.AbsoluteLayout;
27import android.widget.Button;
28import android.widget.FrameLayout;
29import android.widget.LinearLayout;
30import android.widget.RelativeLayout;
31import android.widget.TextView;
32
33/**
34 * Views should obey their background {@link Drawable}'s minimum size
35 * requirements ({@link Drawable#getMinimumHeight()} and
36 * {@link Drawable#getMinimumWidth()}) when possible.
37 * <p>
38 * This Activity exercises a few Views with background {@link Drawable}s.
39 */
40public class DrawableBgMinSize extends Activity implements OnClickListener {
41    private boolean mUsingBigBg = false;
42    private Drawable mBackgroundDrawable;
43    private Drawable mBigBackgroundDrawable;
44    private Button mChangeBackgroundsButton;
45
46    private TextView mTextView;
47    private LinearLayout mLinearLayout;
48    private RelativeLayout mRelativeLayout;
49    private FrameLayout mFrameLayout;
50    private AbsoluteLayout mAbsoluteLayout;
51
52    @Override
53    protected void onCreate(Bundle icicle) {
54        super.onCreate(icicle);
55
56        setContentView(R.layout.drawable_background_minimum_size);
57
58        mBackgroundDrawable = getResources().getDrawable(R.drawable.drawable_background);
59        mBigBackgroundDrawable = getResources().getDrawable(R.drawable.big_drawable_background);
60
61        mChangeBackgroundsButton = (Button) findViewById(R.id.change_backgrounds);
62        mChangeBackgroundsButton.setOnClickListener(this);
63
64        mTextView = (TextView) findViewById(R.id.text_view);
65        mLinearLayout = (LinearLayout) findViewById(R.id.linear_layout);
66        mRelativeLayout = (RelativeLayout) findViewById(R.id.relative_layout);
67        mFrameLayout = (FrameLayout) findViewById(R.id.frame_layout);
68        mAbsoluteLayout = (AbsoluteLayout) findViewById(R.id.absolute_layout);
69
70        changeBackgrounds(mBackgroundDrawable);
71    }
72
73    private void changeBackgrounds(Drawable newBg) {
74        mTextView.setBackgroundDrawable(newBg);
75        mLinearLayout.setBackgroundDrawable(newBg);
76        mRelativeLayout.setBackgroundDrawable(newBg);
77        mFrameLayout.setBackgroundDrawable(newBg);
78        mAbsoluteLayout.setBackgroundDrawable(newBg);
79    }
80
81    public void onClick(View v) {
82        if (mUsingBigBg) {
83            changeBackgrounds(mBackgroundDrawable);
84        } else {
85            changeBackgrounds(mBigBackgroundDrawable);
86        }
87
88        mUsingBigBg = !mUsingBigBg;
89    }
90
91}
92