GridScrollListener.java revision 1d3165f10b12165f02b7015ac1a817c5f60e6399
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 171d3165f10b12165f02b7015ac1a817c5f60e6399Neal Nguyenpackage android.widget.gridview; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.app.Activity; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Bundle; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.AbsListView; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.ArrayAdapter; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.GridView; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.TextView; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 271d3165f10b12165f02b7015ac1a817c5f60e6399Neal Nguyenimport com.android.frameworks.coretests.R; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Exercises change notification in a list 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class GridScrollListener extends Activity implements AbsListView.OnScrollListener { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Handler mHandler = new Handler(); 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextView mText; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project GridView mGridView; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onCreate(Bundle icicle) { 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onCreate(icicle); 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setContentView(R.layout.grid_scroll_listener); 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String values[] = new String[1000]; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i=0; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for(i=0; i<1000; i++) { 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project values[i] = ((Integer)i).toString(); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mText = (TextView) findViewById(R.id.text); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGridView = (GridView) findViewById(R.id.grid); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGridView.setAdapter(new ArrayAdapter<String>(this, 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android.R.layout.simple_list_item_1, values)); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGridView.setOnScrollListener(this); 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public GridView getGridView() { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mGridView; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastItem = firstVisibleItem + visibleItemCount - 1; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mText.setText("Showing " + firstVisibleItem + "-" + lastItem + "/" + totalItemCount); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState) { 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 69