1 /* 2 * Copyright (C) 2012 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.android.test.hwui; 18 19 20 import android.app.Activity; 21 import android.os.Bundle; 22 import android.view.ViewGroup; 23 import android.widget.LinearLayout; 24 import android.widget.ScrollView; 25 import android.widget.TextView; 26 27 import static android.widget.LinearLayout.LayoutParams; 28 29 public class GlyphCacheActivity extends Activity { 30 31 private static final String mCharacterSet = "abcdefghijklmnopqrstuvwxyz" + 32 "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "0123456789" + "~!@#$%^&*()_+-={}[]:\";'<>?,./"; 33 private int mTotalChars = 0; 34 35 @Override onCreate(Bundle savedInstanceState)36 protected void onCreate(Bundle savedInstanceState) { 37 super.onCreate(savedInstanceState); 38 39 ScrollView scrollView = new ScrollView(this); 40 scrollView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, 41 ViewGroup.LayoutParams.MATCH_PARENT)); 42 LinearLayout layout = new LinearLayout(this); 43 layout.setOrientation(LinearLayout.VERTICAL); 44 layout.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 45 ViewGroup.LayoutParams.WRAP_CONTENT)); 46 scrollView.addView(layout); 47 48 while (mTotalChars < 10000) { 49 layout.addView(createTextView()); 50 } 51 setContentView(scrollView); 52 } 53 createTextView()54 private TextView createTextView() { 55 TextView textview = new TextView(this); 56 textview.setTextSize(6 + (int) (Math.random() * 5) * 10); 57 textview.setTextColor(0xff << 24 | (int) (Math.random() * 255) << 16 | 58 (int) (Math.random() * 255) << 8 | (int) (Math.random() * 255) << 16); 59 textview.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 60 ViewGroup.LayoutParams.WRAP_CONTENT)); 61 int numChars = 5 + (int) (Math.random() * 10); 62 mTotalChars += numChars; 63 textview.setText(createString(numChars)); 64 65 return textview; 66 } 67 createString(int length)68 private String createString(int length) { 69 StringBuilder sb = new StringBuilder(); 70 for (int i = 0; i < length; i++) { 71 sb.append(mCharacterSet.charAt((int)(Math.random() * mCharacterSet.length()))); 72 } 73 return sb.toString(); 74 } 75 } 76