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.widget.scroll;
18
19import com.android.frameworks.coretests.R;
20
21import android.app.Activity;
22import android.os.Bundle;
23import android.widget.LinearLayout;
24import android.widget.ScrollView;
25import android.widget.TextView;
26import android.widget.Button;
27
28
29/**
30 * Basic scroll view example
31 */
32public class ScrollViewButtonsAndLabels extends Activity {
33
34    private ScrollView mScrollView;
35    private LinearLayout mLinearLayout;
36
37    private int mNumGroups = 10;
38
39
40    public ScrollView getScrollView() {
41        return mScrollView;
42    }
43
44    public LinearLayout getLinearLayout() {
45        return mLinearLayout;
46    }
47
48    public int getNumButtons() {
49        return mNumGroups;
50    }
51
52    public Button getButton(int groupNum) {
53        if (groupNum > mNumGroups) {
54            throw new IllegalArgumentException("groupNum > " + mNumGroups);
55        }
56        return (Button) mLinearLayout.getChildAt(2*groupNum);
57    }
58
59    @Override
60    protected void onCreate(Bundle icicle) {
61        super.onCreate(icicle);
62        setContentView(R.layout.scrollview_linear_layout);
63
64
65        // estimated ratio to get enough buttons so a couple are off screen
66        int screenHeight = getWindowManager().getDefaultDisplay().getHeight();
67        mNumGroups = screenHeight / 30;
68
69        mScrollView = findViewById(R.id.scrollView);
70        mLinearLayout = findViewById(R.id.layout);
71
72        LinearLayout.LayoutParams p = new LinearLayout.LayoutParams(
73                LinearLayout.LayoutParams.MATCH_PARENT,
74                LinearLayout.LayoutParams.WRAP_CONTENT
75        );
76
77        for (int i = 0; i < mNumGroups; i++) {
78            // want button to be first and last
79            if (i > 0) {
80                TextView textView = new TextView(this);
81                textView.setText("Text View " + i);
82                mLinearLayout.addView(textView, p);
83            }
84
85            Button button = new Button(this);
86            button.setText("Button " + (i + 1));
87            mLinearLayout.addView(button, p);
88        }
89    }
90
91}
92