Android的Cover Flow功能與圖像陰影效果

Question

我想要實現的Cover Flow如下

我已經試過旋轉木馬，但它不是一回事。是否有一些谷歌搜索無法找到一些東西甚至接近在給定的例子中實現的封面流程。

Answer 1

你嘗試過這樣的：

blog post

public Bitmap getRefelection(Bitmap image) { 
    // The gap we want between the reflection and the original image 
    final int reflectionGap = 0; 

    // Get you bit map from drawable folder 
    Bitmap originalImage = image; 

    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 matix applied to it. 
    // We only want the bottom half of the image 
    /*if(bitmapWithReflection!=null && !bitmapWithReflection.isRecycled()){ 
    bitmapWithReflection.recycle(); 
    bitmapWithReflection=null; 
    }*/ 
    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 the reflection Image 
    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, 0x40ffffff, 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); 
    if(originalImage!=null && originalImage.isRecycled()){ 
    originalImage.recycle(); 
    originalImage=null; 
    } 
    if(reflectionImage!=null && reflectionImage.isRecycled()){ 
    reflectionImage.recycle(); 
    reflectionImage=null; 
    } 
    return bitmapWithReflection; 
} 

Answer 2

你有沒有通過Android Coverflow這是有點不同的形式，你想要的旋轉木馬了。

Answer 3

肯定看看這個，FancyCoverFlow。

在Play商店中有一個演示應用程序，它也顯示您想要的反射要求。

Answer 4

我做了不依賴於圖庫的封面流控件。 你可以在這裏找到它。我會在稍後添加一些樣本。

http://applm.github.io/ma-components/