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 17 package android.widget.scroll; 18 19 import com.android.frameworks.coretests.R; 20 21 import android.app.Activity; 22 import android.os.Bundle; 23 import android.widget.LinearLayout; 24 import android.widget.ScrollView; 25 import android.widget.TextView; 26 import android.widget.Button; 27 28 29 /** 30 * Basic scroll view example 31 */ 32 public 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 = (ScrollView) findViewById(R.id.scrollView); 70 mLinearLayout = (LinearLayout) 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
