Android自定义相机界面的实现代码

<?xml version="1.0" encoding="utf-8"?> 
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> 
 <item> 
  <shape android:shape="oval"> 
   <solid android:color="@color/white" /> 
  </shape> 
 </item> 
 <item 
  android:bottom="6dp" 
  android:left="6dp" 
  android:right="6dp" 
  android:top="6dp"> 
  <shape android:shape="oval"> 
   <solid android:color="@color/blue" /> 
  </shape> 
 </item> 
 <item> 
  <shape android:shape="oval"> 
   <stroke 
    android:width="1dp" 
    android:color="@color/blue" 
    android:dashWidth="0dp" /> 
  </shape> 
 </item> 
</layer-list> 

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:background="#ffffff"> 
 
 <!-- 显示预览图形 --> 
 
 <SurfaceView 
  android:id="@+id/surfaceView" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" /> 
 
 <RelativeLayout 
  android:id="@+id/buttonLayout" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:background="@drawable/pic"> 
 
  <RelativeLayout 
   android:id="@+id/panel_take_photo" 
   android:layout_width="fill_parent" 
   android:layout_height="wrap_content" 
   android:layout_alignParentBottom="true" 
   android:background="@color/white" 
   android:gravity="center_vertical" 
   android:padding="2dp"> 
 
 
   <Button 
    android:id="@+id/btn_take_photo" 
    android:layout_width="50dp" 
    android:layout_height="50dp" 
    android:background="@drawable/btn_take_photo" 
    android:layout_centerHorizontal="true" 
    android:layout_alignTop="@+id/iv_album" /> 
 
   <ImageView 
    android:id="@+id/iv_album" 
    android:layout_width="40dp" 
    android:layout_height="40dp" 
    android:layout_alignParentLeft="true" 
    android:layout_centerVertical="true" 
    android:layout_marginLeft="20dp" 
    android:padding="5dp" 
    android:src="@drawable/camera_library" /> 
 
   <ImageView 
    android:id="@+id/title_btn_black" 
    android:layout_width="40dp" 
    android:layout_height="40dp" 
    android:layout_alignParentRight="true" 
    android:layout_centerVertical="true" 
    android:layout_marginRight="20dp" 
    android:padding="5dp" 
    android:src="@drawable/camera_back" /> 
  </RelativeLayout> 
 
 
  <LinearLayout 
   android:id="@+id/photo_area" 
   android:layout_width="fill_parent" 
   android:layout_height="wrap_content" 
   android:layout_above="@id/panel_take_photo" 
   android:layout_centerVertical="true" 
   android:background="@color/white" 
   android:orientation="horizontal"></LinearLayout> 
 
  <!-- 自定义的标题栏--> 
  <RelativeLayout 
   android:id="@+id/camera_top" 
   android:layout_width="fill_parent" 
   android:layout_height="40dp" 
   android:layout_alignParentTop="true" 
   android:background="@color/black"> 
 
   <ImageView 
    android:id="@+id/btn_black" 
    android:layout_width="wrap_content" 
    android:layout_height="fill_parent" 
    android:layout_alignParentLeft="true" 
    android:paddingBottom="10dp" 
    android:paddingLeft="10dp" 
    android:paddingTop="10dp" 
    android:src="@drawable/back" /> 
 
   <ImageView 
    android:id="@+id/btn_change" 
    android:layout_width="wrap_content" 
    android:layout_height="fill_parent" 
    android:layout_alignParentRight="true" 
    android:layout_centerVertical="true" 
    android:paddingBottom="10dp" 
    android:paddingRight="10dp" 
    android:paddingTop="10dp" 
    android:src="@drawable/camera_flip" /> 
 
  </RelativeLayout> 
 
  <!-- 自定义的CameraGrid--> 
  <org.personality.camera.ui.view.CameraGrid 
   android:id="@+id/masking" 
   android:layout_width="match_parent" 
   android:layout_height="match_parent" 
   android:layout_above="@id/photo_area" 
   android:layout_alignParentTop="true" /> 
 
  <View 
   android:id="@+id/focus_index" 
   android:layout_width="40dp" 
   android:layout_height="40dp" 
   android:layout_above="@id/photo_area" 
   android:background="@drawable/cam_focus" 
   android:visibility="invisible" /> 
 </RelativeLayout> 
 
</FrameLayout>

/** 
 * 自定义的View 
 * 照相机井字线 
 * 
 */ 
public class CameraGrid extends View { 
 
 private int topBannerWidth = 0; 
 private Paint mPaint; 
 
 public CameraGrid(Context context) { 
  this(context,null); 
 } 
 
 public CameraGrid(Context context, AttributeSet attrs) { 
  super(context, attrs); 
  init(); 
 } 
 
 private void init(){ 
  mPaint = new Paint(); 
  mPaint.setColor(Color.WHITE); 
  mPaint.setAlpha(120); 
  mPaint.setStrokeWidth(1f); 
 } 
 
 
 private boolean showGrid = true; 
 
 public boolean isShowGrid() { 
  return showGrid; 
 } 
 
 public void setShowGrid(boolean showGrid) { 
  this.showGrid = showGrid; 
 } 
 
 public int getTopWidth() { 
  return topBannerWidth; 
 } 
}