Android Open Source - TypeFaceTextView Type Face Text View

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License

The source code is released under:

MIT License

Java Source Code

package com.nubicz.customviews;
/*  w w  w  .  j  a v a2  s  .c o  m*/
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.os.Handler;
import android.util.AttributeSet;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.AnimationSet;
import android.view.animation.DecelerateInterpolator;
import android.widget.TextView;

import com.nubicz.typefacetextview.R;

public class TypeFaceTextView extends TextView{

  public String data = null;
  public Boolean is_animate = false;
  public Integer mDelay = 500;
  private int mIndex = 0;
  public CharSequence mText = "";
  protected AlphaAnimation fadeIn = null; 
  protected AlphaAnimation fadeOut = null;
  protected AnimationSet animation;
  
  private Handler mHandler = new Handler();
    private Runnable characterAdder = new Runnable() {
        @Override
        public void run() {
            setText(mText.subSequence(0, mIndex++));
            if(mIndex <= mText.length()) {
                mHandler.postDelayed(characterAdder, mDelay);
            }
            if(mIndex == mText.length()){
              mHandler.postDelayed(animationAdder, mDelay);
            }
        }
    };
    
    private Runnable animationAdder = new Runnable() {
    
    @Override
    public void run() {
          setAnimation(animation);      
    }
  };
    
  public TypeFaceTextView(Context context) {
    super(context);
  }
  
    public TypeFaceTextView(Context context,AttributeSet attrs) {
      super(context, attrs);
      init(context,attrs);
  }
    
    public TypeFaceTextView(Context context, AttributeSet attrs, int defStyle){
      super(context, attrs, defStyle);
      init(context,attrs);
    }
    
    public void init(Context context,AttributeSet attrs){
      
      TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.TypeFaceTextView);
      
      data = ta.getString(R.styleable.TypeFaceTextView_customFont);
      is_animate = ta.getBoolean(R.styleable.TypeFaceTextView_typeEffect, false);
      mDelay = ta.getInteger(R.styleable.TypeFaceTextView_typeEffectDelay,500);
      
      if((data == null) || (data.length() == 0)){
             ta.recycle();
             return;
      }     
      Typeface tf =  TypeFaceCache.getFont(getContext(), data);
      this.setTypeface(tf);
      //Set for animation
      if(is_animate){
        animateText();
      }
    }
    
    private void animateText(){
      mText = getText();
      mIndex = 0;
      setText("");
      
      fadeIn = new AlphaAnimation(0.0f , 1.0f ) ;
      fadeOut = new AlphaAnimation( 1.0f , 0.0f ) ; 
      
        fadeIn.setInterpolator(new DecelerateInterpolator()); //add this
        fadeIn.setDuration(1000);
        fadeOut.setInterpolator(new AccelerateInterpolator()); //and this
        fadeOut.setStartOffset(1000);
        fadeOut.setDuration(1000);
      mHandler.removeCallbacks(characterAdder);
      mHandler.postDelayed(characterAdder, mDelay);
      animation = new AnimationSet(false);
      animation.addAnimation(fadeIn);
      animation.addAnimation(fadeOut);
    }
    
    public void setTypeface(String path){
      Typeface tf =  TypeFaceCache.getFont(getContext(), path);
      this.setTypeface(tf);
    }
    
    public void setTypeEffectDelay(Integer delay){
      mDelay = delay;
    }
    
    public void startAnimation(){
      animateText();
    }
  
    
}

Java Source Code List

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