1 /* 2 * Copyright (C) 2012 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.android.camera.ui; 18 19 import android.content.Context; 20 import android.util.AttributeSet; 21 import android.view.SurfaceHolder; 22 import android.view.SurfaceView; 23 import android.view.ViewGroup; 24 25 import com.android.gallery3d.common.ApiHelper; 26 27 public class PreviewSurfaceView extends SurfaceView { 28 public PreviewSurfaceView(Context context, AttributeSet attrs) { 29 super(context, attrs); 30 setZOrderMediaOverlay(true); 31 getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 32 } 33 34 public void shrink() { 35 setLayoutSize(1); 36 } 37 38 public void expand() { 39 setLayoutSize(ViewGroup.LayoutParams.MATCH_PARENT); 40 } 41 42 private void setLayoutSize(int size) { 43 ViewGroup.LayoutParams p = getLayoutParams(); 44 if (p.width != size || p.height != size) { 45 p.width = size; 46 p.height = size; 47 setLayoutParams(p); 48 } 49 } 50 } 51
