Android Open Source - hpush Font Text View

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Back to project page hpush.

License

The source code is released under:

MIT License

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Java Source Code

package com.hpush.views;
/*from   w w  w .  jav a 2  s  .c  o m*/
import java.util.concurrent.ConcurrentHashMap;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.widget.TextView;

import com.hpush.R;


/**
 * A TextView that allows a custom font to be defined in a layout. The font must
 * be in the assets folder.
 * <a href="http://stackoverflow.com/questions/2376250/custom-fonts-and-xml-layouts-android">Stackoverflow</a>
 */
public class FontTextView extends TextView {
  public FontTextView(Context context) {
    super(context);
  }

  public FontTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
    initialize(context, attrs);
  }

  public FontTextView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    initialize(context, attrs);
  }

  private void initialize(Context context, AttributeSet attrs) {
    String font;

    TypedArray a = context.obtainStyledAttributes(attrs,
        R.styleable.FontTextView);
    int fontIndex = a.getInt(R.styleable.FontTextView_font, -1);

    // defined in attrs.xml
    switch (fontIndex) {
    case 1:
      font = Fonts.FONT_THIN;
      break;
    case 2:
      font = Fonts.FONT_LIGHT;
      break;
    case 3:
      font = Fonts.FONT_BOLD;
      break;
    case 4:
      font =  Fonts.FONT_REGULAR;
      break;
    default:
      font = Fonts.FONT_REGULAR;
      break;
    }

    a.recycle();

    if (font != null) {
      setFont(font);
    }
  }

  public void setFont(String font) {
    if (!isInEditMode()) {
      Typeface tf = Fonts.getFont(getContext(), font);
      setTypeface(tf);
    }
  }

  /**
   * A cache for Fonts. Works around a known memory leak in
   * <code>Typeface.createFromAsset</code>.
   * 
   * <a href="http://code.google.com/p/android/issues/detail?id=9904">Google Code</a>
   */
  public final static class Fonts {
    private static final ConcurrentHashMap<String, Typeface> sTypefaces = new ConcurrentHashMap<String, Typeface>();

    public static final String FONT_THIN = "Roboto-Thin.ttf";
    public static final String FONT_LIGHT = "Roboto-Light.ttf";
    public static final String FONT_BOLD = "Roboto-Bold.ttf";
    public static final String FONT_REGULAR = "Roboto-Regular.ttf";

    public static Typeface getFont(Context context, String assetPath) {
      Typeface font = sTypefaces.get(assetPath);
      if (font == null) {
        font = Typeface.createFromAsset(context.getAssets(), "fonts/"
            + assetPath);
        sTypefaces.put(assetPath, font);
      }
      return font;
    }

  }
}

Java Source Code List