Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;

import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;

import android.graphics.Shader;

import android.view.WindowManager;
import android.widget.ScrollView;

public class Main {

    public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
        final int reflectionGap = 4;
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();

        Matrix matrix = new Matrix();
        matrix.preScale(1, -1);

        Bitmap reflectionImage;
        reflectionImage = Bitmap.createBitmap(bitmap, 0, h / 2, w, h / 2, matrix, false);

        Bitmap bitmapWithReflection = Bitmap.createBitmap(w, (h + h / 2), Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(bitmapWithReflection);
        canvas.drawBitmap(bitmap, 0, 0, null);
        Paint defaultPaint = new Paint();
        canvas.drawRect(0, h, w, h + reflectionGap, defaultPaint);

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

        Paint paint = new Paint();
        LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
                bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, Shader.TileMode.CLAMP);
        paint.setShader(shader);
        // Set the Transfer mode to be porter duff and destination in
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
        // Draw a rectangle using the paint with our linear gradient
        canvas.drawRect(0, h, w, bitmapWithReflection.getHeight() + reflectionGap, paint);

        return bitmapWithReflection;
    }

    public static Bitmap createBitmap(Context context, ScrollView v) {
        int width = 0, height = 0;
        for (int i = 0; i < v.getChildCount(); i++) {
            width += v.getChildAt(i).getWidth();
            height += v.getChildAt(i).getHeight();
        }
        if (width <= 0 || height <= 0) {
            return null;
        }
        int h = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getHeight();
        if (height < h)
            height = h;
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        v.draw(canvas);
        return bitmap;
    }
}