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.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageView;

public class Main {
    public static boolean usingMemoryCache = false;

    @SuppressWarnings("unchecked")
    public static void unbindRecursively(View view) {
        if (view == null)
            return;

        if (view.getBackground() != null) {
            view.getBackground().setCallback(null);
            setBackgroundDrawable(view, null);
        }

        if (view instanceof Button) {
            if (view.getBackground() != null) {
                view.getBackground().setCallback(null);
            }
            setBackgroundDrawable(view, null);
        }

        if (view instanceof ImageView) {
            unbindImageView((ImageView) view);
            setBackgroundDrawable(view, null);
        }

        if (view instanceof ViewGroup) {
            ViewGroup viewGroup = (ViewGroup) view;
            for (int i = 0; i < viewGroup.getChildCount(); i++) {
                unbindRecursively(viewGroup.getChildAt(i));
            }
            if (viewGroup instanceof AdapterView) {
                ((AdapterView) viewGroup).setAdapter(null);
            } else {
                viewGroup.removeAllViews();
            }
        }
        view.destroyDrawingCache();
        view = null;
    }

    @SuppressWarnings("deprecation")
    private static void setBackgroundDrawable(View view, Drawable drawable) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            view.setBackground(drawable);
        } else {
            view.setBackgroundDrawable(drawable);
        }
    }

    public static void unbindImageView(ImageView imageView) {
        if (imageView == null) {
            return;
        }

        if (imageView.getBackground() != null) {
            imageView.getBackground().setCallback(null);
        }

        if (imageView.getDrawable() == null)
            return;
        if (!(imageView.getDrawable() instanceof BitmapDrawable))
            return;
        if (((BitmapDrawable) imageView.getDrawable()).getBitmap() == null)
            return;

        BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
        try {
            if (drawable != null && imageView.getTag() != null && !drawable.getBitmap().isRecycled()) {
                if (!imageView.getTag().toString().equalsIgnoreCase("resource") && !usingMemoryCache) {
                    drawable.getBitmap().recycle();
                }
            }
        } catch (RuntimeException e) {
            e.printStackTrace();
        }
        drawable.setCallback(null);
        imageView.setImageBitmap(null);
        imageView.setImageDrawable(null);
    }
}