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      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 com.example.android.apis.graphics;
     18 
     19 import android.app.Activity;
     20 import android.opengl.GLSurfaceView;
     21 import android.os.Bundle;
     22 import android.view.View;
     23 import android.view.View.OnClickListener;
     24 import android.widget.Button;
     25 
     26 //Need the following import to get access to the app resources, since this
     27 //class is in a sub-package.
     28 import com.example.android.apis.R;
     29 
     30 /**
     31  * Demonstration of overlays placed on top of a SurfaceView.
     32  */
     33 public class SurfaceViewOverlay extends Activity {
     34     View mVictimContainer;
     35     View mVictim1;
     36     View mVictim2;
     37 
     38     @Override
     39     protected void onCreate(Bundle savedInstanceState) {
     40         super.onCreate(savedInstanceState);
     41 
     42         setContentView(R.layout.surface_view_overlay);
     43 
     44         GLSurfaceView glSurfaceView =
     45             (GLSurfaceView) findViewById(R.id.glsurfaceview);
     46         glSurfaceView.setRenderer(new CubeRenderer(false));
     47 
     48         // Find the views whose visibility will change
     49         mVictimContainer = findViewById(R.id.hidecontainer);
     50         mVictim1 = findViewById(R.id.hideme1);
     51         mVictim1.setOnClickListener(new HideMeListener(mVictim1));
     52         mVictim2 = findViewById(R.id.hideme2);
     53         mVictim2.setOnClickListener(new HideMeListener(mVictim2));
     54 
     55         // Find our buttons
     56         Button visibleButton = (Button) findViewById(R.id.vis);
     57         Button invisibleButton = (Button) findViewById(R.id.invis);
     58         Button goneButton = (Button) findViewById(R.id.gone);
     59 
     60         // Wire each button to a click listener
     61         visibleButton.setOnClickListener(mVisibleListener);
     62         invisibleButton.setOnClickListener(mInvisibleListener);
     63         goneButton.setOnClickListener(mGoneListener);
     64     }
     65 
     66     @Override
     67     protected void onResume() {
     68         // Ideally a game should implement onResume() and onPause()
     69         // to take appropriate action when the activity looses focus
     70         super.onResume();
     71     }
     72 
     73     @Override
     74     protected void onPause() {
     75         // Ideally a game should implement onResume() and onPause()
     76         // to take appropriate action when the activity looses focus
     77         super.onPause();
     78     }
     79 
     80     class HideMeListener implements OnClickListener {
     81         final View mTarget;
     82 
     83         HideMeListener(View target) {
     84             mTarget = target;
     85         }
     86 
     87         public void onClick(View v) {
     88             mTarget.setVisibility(View.INVISIBLE);
     89         }
     90 
     91     }
     92 
     93     OnClickListener mVisibleListener = new OnClickListener() {
     94         public void onClick(View v) {
     95             mVictim1.setVisibility(View.VISIBLE);
     96             mVictim2.setVisibility(View.VISIBLE);
     97             mVictimContainer.setVisibility(View.VISIBLE);
     98         }
     99     };
    100 
    101     OnClickListener mInvisibleListener = new OnClickListener() {
    102         public void onClick(View v) {
    103             mVictim1.setVisibility(View.INVISIBLE);
    104             mVictim2.setVisibility(View.INVISIBLE);
    105             mVictimContainer.setVisibility(View.INVISIBLE);
    106         }
    107     };
    108 
    109     OnClickListener mGoneListener = new OnClickListener() {
    110         public void onClick(View v) {
    111             mVictim1.setVisibility(View.GONE);
    112             mVictim2.setVisibility(View.GONE);
    113             mVictimContainer.setVisibility(View.GONE);
    114         }
    115     };
    116 }
    117