Tiles the background of the for a view with viewId as a parameter. - Android User Interface

Android examples for User Interface:View Background

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Description

Tiles the background of the for a view with viewId as a parameter.

Demo Code

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.Log;
import android.view.View;

public class Main {
  private static final String TAG = "";

  /**/*from  w w w .  j  a va  2 s .  com*/
   * Tiles the background of the for a view with viewId as a parameter.
   * ***/
  public static void tileBackground(Context ctx, int viewId, int resIdOfTile) {

    try {
      // Tiling the background.
      Bitmap bmp = BitmapFactory
          .decodeResource(ctx.getResources(), resIdOfTile);
      BitmapDrawable bitmapDrawable = new BitmapDrawable(ctx.getResources(),
          bmp);
      bitmapDrawable.setTileModeXY(Shader.TileMode.REPEAT,
          Shader.TileMode.REPEAT);
      View view = ((Activity) ctx).findViewById(viewId);

      if (view == null) {
        throw new NullPointerException(
            "View to which the tile has to be applied should not be null");
      } else {
        setBackground(view, bitmapDrawable);
      }
    } catch (Exception e) {
      Log.w(TAG,
          "#tileBackground Exception while tiling the background of the view");
    }
  }

  public static void tileBackground(Context ctx, int layoutId,
      View viewToTileBg, int resIdOfTile) {

    try {
      // Tiling the background.
      Bitmap bmp = BitmapFactory
          .decodeResource(ctx.getResources(), resIdOfTile);
      // deprecated constructor
      // BitmapDrawable bitmapDrawable = new BitmapDrawable(bmp);
      BitmapDrawable bitmapDrawable = new BitmapDrawable(ctx.getResources(),
          bmp);
      bitmapDrawable.setTileModeXY(Shader.TileMode.REPEAT,
          Shader.TileMode.REPEAT);
      View view = viewToTileBg.findViewById(layoutId);

      if (view != null) {
        setBackground(view, bitmapDrawable);
      }

    } catch (Exception e) {
      Log.e(TAG,
          "#tileBackground Exception while tiling the background of the view");
    }
  }

  /**
   * Sets the passed-in drawable parameter as a background to the passed in
   * target parameter in an SDK independent way. This is the recommended way of
   * setting background rather than using native background setters provided by
   * {@link android.view.View} class. This method should NOT be used for setting
   * background of an {@link android.widget.ImageView}
   *
   * @param target
   *          View to set background to.
   * @param drawable
   *          background image
   * ***/
  @SuppressLint("NewApi")
  public static void setBackground(View target, Drawable drawable) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
      target.setBackgroundDrawable(drawable);
    } else {
      target.setBackground(drawable);
    }
  }
}

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