/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.frameworktest.gridview; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.widget.AbsListView; import android.widget.ArrayAdapter; import android.widget.GridView; import android.widget.TextView; import com.android.frameworktest.R; /** * Exercises change notification in a list */ public class GridScrollListener extends Activity implements AbsListView.OnScrollListener { Handler mHandler = new Handler(); TextView mText; GridView mGridView; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.grid_scroll_listener); String values[] = new String[1000]; int i=0; for(i=0; i<1000; i++) { values[i] = ((Integer)i).toString(); } mText = (TextView) findViewById(R.id.text); mGridView = (GridView) findViewById(R.id.grid); mGridView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, values)); mGridView.setOnScrollListener(this); } public GridView getGridView() { return mGridView; } public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { int lastItem = firstVisibleItem + visibleItemCount - 1; mText.setText("Showing " + firstVisibleItem + "-" + lastItem + "/" + totalItemCount); } public void onScrollStateChanged(AbsListView view, int scrollState) { } }