Example usage for android.graphics Bitmap setHasMipMap

Introduction

In this page you can find the example usage for android.graphics Bitmap setHasMipMap.

Prototype

public final void setHasMipMap(boolean hasMipMap) 

Source Link

Document

Set a hint for the renderer responsible for drawing this bitmap indicating that it should attempt to use mipmaps when this bitmap is drawn scaled down.

Usage

From source file:com.laurencedawson.image_management.ImageManager.java

/**
 * Decode a Bitmap with a given max width and height
 * @param file The Bitmap file//from w w  w.jav a 2s  .com
 * @param reqWidth The requested width of the resulting bitmap
 * @param reqHeight The requested height of the resulting bitmap
 * @return The Bitmap image
 */
@SuppressLint("NewApi")
public static Bitmap decodeBitmap(final File file, final int reqWidth, final int reqHeight) {

    // Serialize all decode on a global lock to reduce concurrent heap usage.
    synchronized (DECODE_LOCK) {

        // Check if the file doesn't exist or has no content
        if (!file.exists() || file.exists() && file.length() == 0) {
            return null;
        }

        // Load a scaled version of the bitmap
        Options opts = null;
        opts = getOptions(file, reqWidth, reqHeight);

        // Set a few additional options for the bitmap opts
        opts.inPurgeable = true;
        opts.inInputShareable = true;
        opts.inDither = true;

        // Grab the bitmap
        Bitmap bitmap = BitmapFactory.decodeFile(file.getPath(), opts);

        // If on JellyBean attempt to draw with mipmaps enabled
        if (bitmap != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            bitmap.setHasMipMap(true);
        }

        // return the decoded bitmap
        return bitmap;
    }
}

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