[转载]超炫的3D特效程序管理功能android-Mikel

[转载]超炫的3D特效程序管理功能android – tankaixiong – 博客园.

tank我昨天我花了点时间重新整理了一下，加了很多注释希望让大家能够看的很明白

整理后在原来的基础上，实现一个超炫的3D特效程序管理功能，所以更有用途了，不仅仅只是显示图片了。

实现的效果：
用3D效果显示所有已安装的程序列表，点击某张图片时动态显示到最前一张，长按可以打开该程序。（如上篇博客展示的样子，这里不再贴出）

主要思路流程如下：

@Override

 public void onCreate(Bundle savedInstanceState) {

 super.onCreate(savedInstanceState);

 // 实例化launcher列表，得到应用程序的信息列表（包括图片）

 getLauncher();

 final CoverFlow cf = new CoverFlow(this);//重写Garry的getChildStaticTransformation ，产生层叠和放大效果

 //填充我的要的图片 http://www.cnblogs.com/tankaixiong/（原）

 cf.setAdapter(new ImageAdapter(this));

 //自定义图片的填充方式

 ImageAdapter imageAdapter = new ImageAdapter(this);

 cf.setAdapter(imageAdapter);

 cf.setAnimationDuration(1500);

 cf.setOnItemClickListener(this);

 cf.setOnItemLongClickListener(lonClick);

 setContentView(cf);

 }

第一步：
创建一个实体类来保存程序信息：

LauncherItem

package com.Android.tank;

import Android.content.ComponentName;

import android.graphics.drawable.Drawable;

public class LauncherItem {

 Drawable icon;

 String name;

 ComponentName component;

 LauncherItem(Drawable d, String s, ComponentName cn) {

 icon = d;

 name = s;

 component = cn;

 }

 public Drawable getIcon() {

 return icon;

 }

 public void setIcon(Drawable icon) {

 this.icon = icon;

 }

 public String getName() {

 return name;

 }

 public void setName(String name) {

 this.name = name;

 }

 public ComponentName getComponent() {

 return component;

 }

 public void setComponent(ComponentName component) {

 this.component = component;

 }

};

第二步：存入

//这里保存从应用程序中获取到的信息LIST（包括图片的信息），你也可以自己定一个图片集合

 List<LauncherItem> lvalue;

 // 获得app 列表信息

 public void getLauncher() {

 lvalue = new ArrayList<LauncherItem>();

 PackageManager pkgMgt = this.getPackageManager();//这个方法是关键

 // to query all launcher & load into List<>

 Intent it = new Intent(Intent.ACTION_MAIN);

 it.addCategory(Intent.CATEGORY_LAUNCHER);

 List<ResolveInfo> ra = pkgMgt.queryIntentActivities(it, 0);//查询

 //存入集合中 http://www.cnblogs.com/tankaixiong/（原）

 for (int i = 0; i < ra.size(); i++) {

 ActivityInfo ai = ra.get(i).activityInfo;

 // String ainfo = ai.toString();

 Drawable icon = ai.loadIcon(pkgMgt);

 String label = ai.loadLabel(pkgMgt).toString();

 ComponentName c = new ComponentName(ai.applicationInfo.packageName,

 ai.name);

 LauncherItem item = new LauncherItem(icon, label, c);

 lvalue.add(item);

 }

 }

第三步：重写baseadapter

public class ImageAdapter extends BaseAdapter {

 int mGalleryItemBackground;

 private Context mContext;

 public ImageAdapter(Context context) {

 mContext = context;

 TypedArray typedArray = obtainStyledAttributes(R.styleable.Gallery);

 mGalleryItemBackground = typedArray.getResourceId(

 R.styleable.Gallery_android_galleryItemBackground, 0);

 }

 // 第1点改进，返回一个很大的值，例如，Integer.MAX_VALUE

 public int getCount() {

 return resIds.length;

 }

 public Object getItem(int position) {

 return position;

 }

 public long getItemId(int position) {

 return position;

 }

 public View getView(int position, View convertView, ViewGroup parent) {

 ImageView iv = new ImageView(mContext);

 iv.setImageDrawable(lvalue.get(position).icon);

 iv.setImageBitmap(MyImgView.createReflectedImage(MyImgView

 .drawableToBitmap(lvalue.get(position).icon)));//加入处理过的图片

 iv.setLayoutParams(new Gallery.LayoutParams(80, 60));

 return iv;

 }

第四步：处理图片，产生特效

package com.android.tank;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.LinearGradient;

import android.graphics.Matrix;

import android.graphics.Paint;

import android.graphics.PixelFormat;

import android.graphics.PorterDuffXfermode;

import android.graphics.Bitmap.Config;

import android.graphics.PorterDuff.Mode;

import android.graphics.Shader.TileMode;

import android.graphics.drawable.Drawable;

public class MyImgView {

 /**

 * 添加倒影，原理，先翻转图片，由上到下放大透明度

 * http://www.cnblogs.com/tankaixiong/（原）

 * @param originalImage

 * @return

 */

 public static Bitmap createReflectedImage(Bitmap originalImage) {

 // The gap we want between the reflection and the original image

 final int reflectionGap = 4;

 int width = originalImage.getWidth();

 int height = originalImage.getHeight();

 // This will not scale but will flip on the Y axis

 Matrix matrix = new Matrix();

 matrix.preScale(1, -1);

 // Create a Bitmap with the flip matrix applied to it.

 // We only want the bottom half of the image

 Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,

 height / 2, width, height / 2, matrix, false);

 // Create a new bitmap with same width but taller to fit reflection

 Bitmap bitmapWithReflection = Bitmap.createBitmap(width,

 (height + height / 2), Config.ARGB_8888);

 // Create a new Canvas with the bitmap that's big enough for

 // the image plus gap plus reflection

 Canvas canvas = new Canvas(bitmapWithReflection);

 // Draw in the original image

 canvas.drawBitmap(originalImage, 0, 0, null);

 // Draw in the gap http://www.cnblogs.com/tankaixiong/（原）

 Paint defaultPaint = new Paint();

 canvas.drawRect(0, height, width, height + reflectionGap, defaultPaint);

 // Draw in the reflection

 canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);

 // Create a shader that is a linear gradient that covers the reflection

 Paint paint = new Paint();

 LinearGradient shader = new LinearGradient(0,

 originalImage.getHeight(), 0, bitmapWithReflection.getHeight()

 + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);

 // Set the paint to use this shader (linear gradient)

 paint.setShader(shader);

 // Set the Transfer mode to be porter duff and destination in

 paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));

 // Draw a rectangle using the paint with our linear gradient

 canvas.drawRect(0, height, width, bitmapWithReflection.getHeight()

 + reflectionGap, paint);

 return bitmapWithReflection;

 }

 //drawable 类型转化为bitmap

 public static Bitmap drawableToBitmap(Drawable drawable) {

 Bitmap bitmap = Bitmap

 .createBitmap(

 drawable.getIntrinsicWidth(),

 drawable.getIntrinsicHeight(),

 drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888

 : Bitmap.Config.RGB_565);

 Canvas canvas = new Canvas(bitmap);

 // canvas.setBitmap(bitmap);

 drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable

 .getIntrinsicHeight());

 drawable.draw(canvas);

 return bitmap;

 }

}

第五步：

重写Garry 来达到层叠效果。

package com.android.tank;

import android.content.Context;

import android.graphics.Camera;

import android.graphics.Matrix;

import android.util.AttributeSet;

import android.util.Log;

import android.view.View;

import android.view.animation.Transformation;

import android.widget.Gallery;

import android.widget.ImageView;

//自己定义的Gallery

public class CoverFlow extends Gallery {

 private Camera mCamera = new Camera();

 private int mMaxRotationAngle = 50;

 private int mMaxZoom = -500;

 private int mCoveflowCenter;

 private boolean mAlphaMode = true;

 private boolean mCircleMode = false;

 public CoverFlow(Context context) {

 super(context);

 this.setStaticTransformationsEnabled(true);

 }

 public CoverFlow(Context context, AttributeSet attrs) {

 super(context, attrs);

 this.setStaticTransformationsEnabled(true);

 }

 public CoverFlow(Context context, AttributeSet attrs, int defStyle) {

 super(context, attrs, defStyle);

 this.setStaticTransformationsEnabled(true);

 }

 public int getMaxRotationAngle() {

 return mMaxRotationAngle;

 }

 public void setMaxRotationAngle(int maxRotationAngle) {

 mMaxRotationAngle = maxRotationAngle;

 }

 public boolean getCircleMode() {

 return mCircleMode;

 }

 public void setCircleMode(boolean isCircle) {

 mCircleMode = isCircle;

 }

 public boolean getAlphaMode() {

 return mAlphaMode;

 }

 public void setAlphaMode(boolean isAlpha) {

 mAlphaMode = isAlpha;

 }

 public int getMaxZoom() {

 return mMaxZoom;

 }

 public void setMaxZoom(int maxZoom) {

 mMaxZoom = maxZoom;

 }

 private int getCenterOfCoverflow() {

 return (getWidth() - getPaddingLeft() - getPaddingRight()) / 2

 + getPaddingLeft();

 }

 private static int getCenterOfView(View view) {

 return view.getLeft() + view.getWidth() / 2;

 }

 //重写Garray方法 ，产生层叠和放大效果

 @Override

 protected boolean getChildStaticTransformation(View child, Transformation t) {

 final int childCenter = getCenterOfView(child);

 final int childWidth = child.getWidth();

 int rotationAngle = 0;

 t.clear();

 t.setTransformationType(Transformation.TYPE_MATRIX);

 if (childCenter == mCoveflowCenter) {

 transformImageBitmap((ImageView) child, t, 0, 0);

 } else {

 rotationAngle = (int) (((float) (mCoveflowCenter - childCenter) / childWidth) * mMaxRotationAngle);

 // Log.d("test", "recanglenum:"+Math.floor ((mCoveflowCenter -

 // childCenter) / childWidth));

 if (Math.abs(rotationAngle) > mMaxRotationAngle) {

 rotationAngle = (rotationAngle < 0) ? -mMaxRotationAngle

 : mMaxRotationAngle;

 }

 transformImageBitmap((ImageView) child, t, rotationAngle,

 (int) Math.floor((mCoveflowCenter - childCenter)/ (childWidth==0?1:childWidth)));

 }

 return true;

 }

 /**

 * This is called during layout when the size of this view has changed. If

 * you were just added to the view hierarchy, you're called with the old

 * values of 0.

 * http://www.cnblogs.com/tankaixiong/（原）

 * @param w

 *            Current width of this view.

 * @param h

 *            Current height of this view.

 * @param oldw

 *            Old width of this view.

 * @param oldh

 *            Old height of this view.

 */

 protected void onSizeChanged(int w, int h, int oldw, int oldh) {

 mCoveflowCenter = getCenterOfCoverflow();

 super.onSizeChanged(w, h, oldw, oldh);

 }

 /**

 * Transform the Image Bitmap by the Angle passed

 * http://www.cnblogs.com/tankaixiong/（原）

 * @param imageView

 *            ImageView the ImageView whose bitmap we want to rotate

 * @param t

 *            transformation

 * @param rotationAngle

 *            the Angle by which to rotate the Bitmap

 */

 private void transformImageBitmap(ImageView child, Transformation t,

 int rotationAngle, int d) {

 mCamera.save();

 final Matrix imageMatrix = t.getMatrix();

 final int imageHeight = child.getLayoutParams().height;

 final int imageWidth = child.getLayoutParams().width;

 final int rotation = Math.abs(rotationAngle);

 mCamera.translate(0.0f, 0.0f, 100.0f);

 // As the angle of the view gets less, zoom in

 if (rotation <= mMaxRotationAngle) {

 float zoomAmount = (float) (mMaxZoom + (rotation * 1.5));

 mCamera.translate(0.0f, 0.0f, zoomAmount);

 if (mCircleMode) {

 if (rotation < 40)

 mCamera.translate(0.0f, 155, 0.0f);

 else

 mCamera.translate(0.0f, (255 - rotation * 2.5f), 0.0f);

 }

 if (mAlphaMode) {

 ((ImageView) (child)).setAlpha((int) (255 - rotation * 2.5));

 }

 }

 mCamera.rotateY(rotationAngle);

 mCamera.getMatrix(imageMatrix);

 imageMatrix.preTranslate(-(imageWidth / 2), -(imageHeight / 2));

 imageMatrix.postTranslate((imageWidth / 2), (imageHeight / 2));

 mCamera.restore();

 }

}

最后是表示层：

<?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">

 <Gallery android:id="@+id/gallery" android:layout_width="fill_parent"

 android:layout_height="wrap_content" android:layout_marginTop="30dp" />

 <ImageSwitcher android:id="@+id/imageswitcher"

 android:layout_width="fill_parent" android:layout_height="wrap_content"

 android:layout_marginTop="30dp" />

</LinearLayout>

好了，大概就这些了，整理这么多东东贴出可花了我不少时间呢，希望对大家有帮助！

这里提供源码下载的地址（请尊重tank的心血成果）：

http://files.cnblogs.com/tankaixiong/MyApplicationMenu.rar

[转载]超炫的3D特效程序管理功能android

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