Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;

import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.view.View;
import android.widget.ImageView;

import java.io.InputStream;

public class Main {
    private static final Canvas sCanvas = new Canvas();

    public static Bitmap createBitmapFromView(View view) {
        if (view instanceof ImageView) {
            Drawable drawable = ((ImageView) view).getDrawable();
            if (drawable != null && drawable instanceof BitmapDrawable) {
                return ((BitmapDrawable) drawable).getBitmap();
            }
        }
        view.clearFocus();
        Bitmap bitmap = createBitmapSafely(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888, 1);
        if (bitmap != null) {
            synchronized (sCanvas) {
                Canvas canvas = sCanvas;
                canvas.setBitmap(bitmap);
                view.draw(canvas);
                canvas.setBitmap(null);
            }
        }
        return bitmap;
    }

    public static Bitmap getBitmap(String path) {
        try {
            return BitmapFactory.decodeFile(path);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Bitmap getBitmap(InputStream is) {
        try {
            return BitmapFactory.decodeStream(is);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static Bitmap createBitmapSafely(int width, int height, Bitmap.Config config, int retryCount) {
        try {
            return Bitmap.createBitmap(width, height, config);
        } catch (OutOfMemoryError e) {
            e.printStackTrace();
            if (retryCount > 0) {
                System.gc();
                return createBitmapSafely(width, height, config, retryCount - 1);
            }
            return null;
        }
    }
}