1/* 2 * Copyright (C) 2008 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 17package com.example.android.rs.miscsamples; 18import android.renderscript.RSSurfaceView; 19import android.renderscript.RenderScriptGL; 20 21import android.content.Context; 22import android.view.MotionEvent; 23 24public class RsListView extends RSSurfaceView { 25 26 public RsListView(Context context) { 27 super(context); 28 ensureRenderScript(); 29 } 30 31 private RenderScriptGL mRS; 32 private RsListRS mRender; 33 34 private void ensureRenderScript() { 35 if (mRS == null) { 36 RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); 37 mRS = createRenderScriptGL(sc); 38 mRender = new RsListRS(); 39 mRender.init(mRS, getResources()); 40 } 41 } 42 43 @Override 44 protected void onAttachedToWindow() { 45 super.onAttachedToWindow(); 46 ensureRenderScript(); 47 } 48 49 @Override 50 protected void onDetachedFromWindow() { 51 mRender = null; 52 if (mRS != null) { 53 mRS = null; 54 destroyRenderScriptGL(); 55 } 56 } 57 58 @Override 59 public boolean onTouchEvent(MotionEvent ev) 60 { 61 boolean ret = false; 62 int act = ev.getAction(); 63 if (act == MotionEvent.ACTION_DOWN) { 64 mRender.onActionDown((int)ev.getX(), (int)ev.getY()); 65 ret = true; 66 } else if (act == MotionEvent.ACTION_MOVE) { 67 mRender.onActionMove((int)ev.getX(), (int)ev.getY()); 68 ret = true; 69 } 70 71 return ret; 72 } 73} 74 75 76