Android实现动态向Gallery中添加图片及倒影与3D效果示例

package nate.android.Service;import android.content.Context;import android.graphics.Camera;import android.graphics.Matrix;import android.graphics.Rect;import android.util.AttributeSet;import android.view.View;import android.view.animation.Transformation;import android.widget.Gallery;import android.widget.ImageView;import android.widget.Toast;publicclass MyGallery extends Gallery {private Camera mCamera =new Camera();privateint mMaxRotationAngle =45;privateint mMaxZoom =-120;privateint mCoveflowCenter;public MyGallery(Context context) {super(context);this.setStaticTransformationsEnabled(true); }public MyGallery(Context context, AttributeSet attrs) {super(context, attrs);this.setStaticTransformationsEnabled(true); }public MyGallery(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);this.setStaticTransformationsEnabled(true); }publicint getMaxRotationAngle() {return mMaxRotationAngle; }publicvoid setMaxRotationAngle(int maxRotationAngle) {   mMaxRotationAngle = maxRotationAngle; }publicint getMaxZoom() {return mMaxZoom; }publicvoid setMaxZoom(int maxZoom) {   mMaxZoom = maxZoom; }privateint getCenterOfCoverflow() {return (getWidth() - getPaddingLeft() - getPaddingRight()) /2+ getPaddingLeft(); }privatestaticint getCenterOfView(View view) {return view.getLeft() + view.getWidth() /2; }protectedboolean getChildStaticTransformation(View child, Transformation t) {finalint childCenter = getCenterOfView(child);finalint childWidth = child.getWidth();int rotationAngle =0;   t.clear();   t.setTransformationType(Transformation.TYPE_MATRIX);if (childCenter == mCoveflowCenter) {     transformImageBitmap((ImageView) child, t, 0);   } else {     rotationAngle = (int) (((float) (mCoveflowCenter - childCenter) / childWidth) * mMaxRotationAngle);if (Math.abs(rotationAngle) > mMaxRotationAngle) {       rotationAngle = (rotationAngle <0) ?-mMaxRotationAngle           : mMaxRotationAngle;     }     transformImageBitmap((ImageView) child, t, rotationAngle);   }returntrue; }protectedvoid onSizeChanged(int w, int h, int oldw, int oldh) {   mCoveflowCenter = getCenterOfCoverflow();super.onSizeChanged(w, h, oldw, oldh); }privatevoid transformImageBitmap(ImageView child, Transformation t,int rotationAngle) {   mCamera.save();final Matrix imageMatrix = t.getMatrix();finalint imageHeight = child.getLayoutParams().height;finalint imageWidth = child.getLayoutParams().width;finalint rotation = Math.abs(rotationAngle);// 在Z轴上正向移动camera的视角，实际效果为放大图片。// 如果在Y轴上移动，则图片上下移动；X轴上对应图片左右移动。   mCamera.translate(0.0f, 0.0f, 100.0f);// As the angle of the view gets less, zoom inif (rotation < mMaxRotationAngle) {float zoomAmount = (float) (mMaxZoom + (rotation *1.5));     mCamera.translate(0.0f, 0.0f, zoomAmount);   }// 在Y轴上旋转，对应图片竖向向里翻转。// 如果在X轴上旋转，则对应图片横向向里翻转。   mCamera.rotateY(rotationAngle);   mCamera.getMatrix(imageMatrix);   imageMatrix.preTranslate(-(imageWidth /2), -(imageHeight /2));   imageMatrix.postTranslate((imageWidth /2), (imageHeight /2));   mCamera.restore(); }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffffff"><LinearLayoutandroid:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" android:paddingTop="10px"><LinearLayoutandroid:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"><TextViewandroid:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/dishName"   android:textSize="18pt" android:text="菜名"/><LinearLayoutandroid:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:paddingLeft="10px"><TextViewandroid:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/ds"   android:textSize="18pt" android:text="评分 : "/><RatingBarandroid:numStars="5" android:rating="3" android:stepSize="0.2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:isIndicator="true" android:id="@+id/dishScores" style="?android:attr/ratingBarStyleSmall"/></LinearLayout></LinearLayout><LinearLayoutandroid:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"><TextViewandroid:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/dishPrice" android:text="价格" android:textSize="18pt"/></LinearLayout></LinearLayout><nate.android.Service.MyGalleryandroid:id="@+id/Gallery01" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_centerInParent="true"/><TextViewandroid:text="/n/n/n/n这里是关于每一道菜的信息,点击图片进入评论" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/gallery01" android:paddingLeft="5px" android:id="@+id/showHint"/></LinearLayout>

package nate.android.Service;import java.util.ArrayList;import android.content.Context;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.LinearGradient;import android.graphics.Matrix;import android.graphics.Paint;import android.graphics.PorterDuffXfermode;import android.graphics.Bitmap.Config;import android.graphics.PorterDuff.Mode;import android.graphics.Shader.TileMode;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;publicclass ImageAdapter extends BaseAdapter {int mGalleryItemBackground;private Context mContext;private ArrayList<byte[]> dishImages =new ArrayList<byte[]>();private ImageView[] mImages;public ImageAdapter(Context c,ArrayList<byte[]> tmpDishImages) {  mContext = c;  dishImages = tmpDishImages;  mImages =new ImageView[dishImages.size()]; }publicboolean createReflectedImages() {finalint reflectionGap =4;int index =0;  System.out.println("dishImages size "+ dishImages.size());for (int i =0; i < dishImages.size(); ++i ) {   System.out.println("dishImage --- "+ dishImages.get(i));   Bitmap originalImage = BitmapFactory.decodeByteArray(dishImages.get(i), 0, dishImages.get(i).length);int width = originalImage.getWidth();int height = originalImage.getHeight();   Matrix matrix =new Matrix();   matrix.preScale(1, -1);   Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,     height /2, width, height /2, matrix, false);   Bitmap bitmapWithReflection = Bitmap.createBitmap(width,     (height + height /2), Config.ARGB_8888);   Canvas canvas =new Canvas(bitmapWithReflection);   canvas.drawBitmap(originalImage, 0, 0, null);   Paint deafaultPaint =new Paint();   canvas.drawRect(0, height, width, height + reflectionGap,     deafaultPaint);   canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);   Paint paint =new Paint();   LinearGradient shader =new LinearGradient(0, originalImage     .getHeight(), 0, bitmapWithReflection.getHeight()+ reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);   paint.setShader(shader);   paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));   canvas.drawRect(0, height, width, bitmapWithReflection.getHeight()+ reflectionGap, paint);   ImageView imageView =new ImageView(mContext);   imageView.setImageBitmap(bitmapWithReflection);//   imageView.setLayoutParams(new GalleryFlow.LayoutParams(180, 240));   imageView.setLayoutParams(new MyGallery.LayoutParams(270, 360));//imageView.setScaleType(ScaleType.MATRIX);   mImages[index++] = imageView;  }returntrue; }private Resources getResources() {returnnull; }publicint getCount() {return dishImages.size(); }public Object getItem(int position) {return position; }publiclong getItemId(int position) {return position; }public View getView(int position, View convertView, ViewGroup parent) {return mImages[position]; }publicfloat getScale(boolean focused, int offset) {return Math.max(0, 1.0f/ (float) Math.pow(2, Math.abs(offset))); }}

package com.nate.wte2;import java.io.IOException;import java.util.ArrayList;import nate.InfoService.DishInfo;import nate.InfoService.StoreInfoService;import nate.InfoService.WhichChoice;import nate.NetConnection.GetConnectionSock;import nate.android.Service.GalleryFlow;import nate.android.Service.ImageAdapter;import android.app.Activity;import android.app.ProgressDialog;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.View;import android.widget.AdapterView;import android.widget.RatingBar;import android.widget.TextView;import android.widget.Toast;import android.widget.AdapterView.OnItemClickListener;import android.widget.AdapterView.OnItemSelectedListener;import com.nate.wte.LocalSql.StoresInfoDB;publicclass DishMenuActivity extends Activity {private ArrayList<DishInfo> dishInfoList =new ArrayList<DishInfo>();private TextView dishName;private RatingBar dishScores;private TextView dishPrice;//3:send the dish's whole info to fill the activity(send the comments of the dish)privateint flag3 =3; WhichChoice choice3 =new WhichChoice(flag3);private StoreInfoService storeInfo;private ProgressDialog loadingDialog;/**  * handler handle the dialog dismission*/private Handler handler =new Handler(){  @Overridepublicvoid handleMessage(Message msg) {   loadingDialog.dismiss();//other operationsuper.handleMessage(msg);  } };/**  * thread to load the data from local database or from the server  * @author Administrator  **/class Loading implements Runnable{  @Overridepublicvoid run() {try {//这儿的sleep将换成一个循环，知道某个条件满足时候才结束循环，让dialog终止    Thread.sleep(1500);    handler.sendEmptyMessage(0);   } catch (InterruptedException e) {    e.printStackTrace();   }  } }/**  * loading the items,start the thread to load*/publicvoid loadingItems(){  loadingDialog = ProgressDialog.show(DishMenuActivity.this, "", "loading...");  Thread t =new Thread(new Loading());  t.start(); }publicvoid onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);  setContentView(R.layout.dishmenu_gallery);  StoresInfoDB infoDB;int dishInfoListLength;  ArrayList<byte[]> dishImages =new ArrayList<byte[]>();byte[] dishImage;  dishName = (TextView)this.findViewById(R.id.dishName);  dishPrice = (TextView)this.findViewById(R.id.dishPrice);  dishScores = (RatingBar)this.findViewById(R.id.dishScores);//得到intent中从Choices类中传过来的对象  Intent intent = getIntent();  Bundle bundle = intent.getBundleExtra("bundleData");  storeInfo = (StoreInfoService)bundle.getSerializable("storeInfo");  dishInfoList = (ArrayList<DishInfo>)bundle.getSerializable("dishInfoList");  System.out.println("look look the info received from Choices Activity");for(int i =0; i < dishInfoList.size(); i++){   System.out.println("--- "+ i + dishInfoList.get(i).getDishImage().toString());  }  dishInfoListLength = dishInfoList.size();//初始化 dishImagesfor(int i =0; i < dishInfoListLength; i++){   dishImages.add(dishInfoList.get(i).getDishImage());  }  System.out.println("the length of the dishImages ---- "+ dishImages.size());//////////////////////////////////注意这里一段////////////////////////////////  ImageAdapter adapter =new ImageAdapter(DishMenuActivity.this,dishImages);  adapter.createReflectedImages();  GalleryFlow galleryFlow = (GalleryFlow) findViewById(R.id.Gallery01);  galleryFlow.setOnItemSelectedListener(new OnItemSelectedListener(){   @Overridepublicvoid onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {    String showName ="菜名 : "+ dishInfoList.get((int)arg3).getDishName() +"";    dishName.setText(showName);    dishScores.setRating(dishInfoList.get((int)arg3).getDishScores());    dishPrice.setText("价格 ： "+ dishInfoList.get((int)arg3).getPrice() +" 元/n/n/n");   }   @Overridepublicvoid onNothingSelected(AdapterView<?> arg0) {   }  });  galleryFlow.setOnItemClickListener(new OnItemClickListener(){  @Overridepublicvoid onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {   loadingItems();   DishInfo dishInfo = dishInfoList.get((int)arg3);try {    GetConnectionSock.fromClient.writeObject(choice3);    System.out.println("send the flag 3 ");    GetConnectionSock.fromClient.writeObject(dishInfo);    System.out.println("send the name back to server");    DishInfo dishComments = (DishInfo)GetConnectionSock.fromServer.readObject();    System.out.println("recv the dish comments");    dishInfo.setDishName(dishInfoList.get((int)arg3).getDishName());    dishInfo.setDishComments(dishComments.getDishComments());    System.out.println("full the dish info");   } catch (IOException e) {    e.printStackTrace();   } catch (ClassNotFoundException e) {    e.printStackTrace();   }   Intent intent =new Intent();   Bundle bundle =new Bundle();   bundle.putSerializable("dishInfo",dishInfo);   bundle.putSerializable("storeInfo",storeInfo);   intent.putExtra("dishBundleData",bundle);   intent.setClass(DishMenuActivity.this,DishInfoDynamic.class);   Toast.makeText(DishMenuActivity.this, "进入评论此道菜",Toast.LENGTH_LONG).show();   DishMenuActivity.this.startActivity(intent);  }  });  galleryFlow.setAdapter(adapter); //注意这里 }}