Home | History | Annotate | Download | only in miscsamples 
      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 
     17 package com.example.android.rs.miscsamples;
     18 import android.renderscript.RSSurfaceView;
     19 import android.renderscript.RenderScriptGL;
     20 
     21 import android.content.Context;
     22 import android.view.MotionEvent;
     23 
     24 public 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