NotificationWallpaper.java

package com.android.systemui.statusbar.phone;

import java.io.File;
import java.io.IOException;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.provider.Settings;
import android.util.AttributeSet;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;

class NotificationWallpaper extends FrameLayout {

    private final String TAG = "NotificationWallpaperUpdater";

    private final String NOTIF_WALLPAPER_IMAGE_PATH = "/data/data/com.aokp.romcontrol/files/notification_wallpaper.jpg";

    private ImageView mNotificationWallpaperImage;

    Bitmap bitmapWallpaper;

    float wallpaperAlpha = Settings.System.getFloat(getContext()
            .getContentResolver(), Settings.System.NOTIF_WALLPAPER_ALPHA, 1.0f);

    public NotificationWallpaper(Context context, AttributeSet attrs) {
        super(context);

        setNotificationWallpaper();
    }

    public void setNotificationWallpaper() {
        File file = new File(NOTIF_WALLPAPER_IMAGE_PATH);

        if (file.exists()) {
            mNotificationWallpaperImage = new ImageView(getContext());
            mNotificationWallpaperImage.setScaleType(ScaleType.CENTER);
            addView(mNotificationWallpaperImage, -1, -1);
            bitmapWallpaper = BitmapFactory.decodeFile(NOTIF_WALLPAPER_IMAGE_PATH);
            Drawable d = new BitmapDrawable(getResources(), bitmapWallpaper);
            d.setAlpha((int) (wallpaperAlpha * 255));
            mNotificationWallpaperImage.setImageDrawable(d);
        } else {
            removeAllViews();
        }
    }

    @Override
    protected void onDetachedFromWindow() {
        if (bitmapWallpaper != null)
            bitmapWallpaper.recycle();

        System.gc();
        super.onDetachedFromWindow();
    }
}