Android Open Source - 101AndroidApps Developer Tools

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License

The source code is released under:

Licenced under the Creative Commons Attribution 4.0 licence. For full text see http://creativecommons.org/licenses/by/4.0/

Java Source Code

package com.hulzenga.ioi.android.util;
//from   w w w.j a  v  a2s .  c o m
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffColorFilter;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.StateListDrawable;
import android.view.View;
import android.widget.ImageButton;

/**
 * A utility class containing methods to simplify development but which do not
 * necessarily belong in a deployed app
 */
public class DeveloperTools {

  private DeveloperTools() {
  }

  public enum Statefulness {
    greyWhenDisabled
  }

  public static void makeImageButtonStateful(ImageButton imageButton, Statefulness type) {
    switch (type) {
      case greyWhenDisabled:
        Bitmap original = ((BitmapDrawable) imageButton.getDrawable()).getBitmap();
        Bitmap clone = Bitmap.createBitmap(original.getWidth(), original.getHeight(), Config.ARGB_8888);

        Canvas c = new Canvas(clone);
        Paint p = new Paint();
        p.setColorFilter(new PorterDuffColorFilter(Color.GRAY, Mode.SRC_IN));
        c.drawBitmap(original, 0, 0, p);

        StateListDrawable stateListDrawable = new StateListDrawable();
        stateListDrawable.addState(new int[]{-android.R.attr.state_enabled}, new BitmapDrawable(clone));
        stateListDrawable.addState(new int[]{}, imageButton.getDrawable());

        imageButton.setImageDrawable(stateListDrawable);

        break;
    }
  }

  public static void makeBackgroundColored(View view, int color) {
    view.setBackgroundDrawable(createColoredBackground(view, color));
  }

  public static Drawable createColoredBackground(View view, int color) {
    Bitmap colorBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(colorBitmap);
    view.draw(canvas);
    canvas.drawColor(color, Mode.SRC_IN);

    return new BitmapDrawable(colorBitmap);
  }
}

Java Source Code List

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