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.gridview; 18 19 import android.app.Activity; 20 import android.os.Bundle; 21 import android.os.Handler; 22 import android.widget.AbsListView; 23 import android.widget.ArrayAdapter; 24 import android.widget.GridView; 25 import android.widget.TextView; 26 27 import com.android.frameworks.coretests.R; 28 29 /** 30 * Exercises change notification in a list 31 */ 32 public class GridScrollListener extends Activity implements AbsListView.OnScrollListener { 33 Handler mHandler = new Handler(); 34 TextView mText; 35 GridView mGridView; 36 37 @Override onCreate(Bundle icicle)38 public void onCreate(Bundle icicle) { 39 super.onCreate(icicle); 40 41 setContentView(R.layout.grid_scroll_listener); 42 43 String values[] = new String[1000]; 44 int i=0; 45 for(i=0; i<1000; i++) { 46 values[i] = ((Integer)i).toString(); 47 } 48 49 mText = (TextView) findViewById(R.id.text); 50 mGridView = (GridView) findViewById(R.id.grid); 51 mGridView.setAdapter(new ArrayAdapter<String>(this, 52 android.R.layout.simple_list_item_1, values)); 53 54 mGridView.setOnScrollListener(this); 55 } 56 getGridView()57 public GridView getGridView() { 58 return mGridView; 59 } 60 onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount)61 public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { 62 int lastItem = firstVisibleItem + visibleItemCount - 1; 63 mText.setText("Showing " + firstVisibleItem + "-" + lastItem + "/" + totalItemCount); 64 } 65 onScrollStateChanged(AbsListView view, int scrollState)66 public void onScrollStateChanged(AbsListView view, int scrollState) { 67 } 68 } 69