Android自定义View实现闪耀字体效果

本文实例为大家分享了闪耀字体效果的具体代码，供大家参考，具体内容如下

import android.content.context;
import android.graphics.canvas;
import android.graphics.color;
import android.graphics.lineargradient;
import android.graphics.matrix;
import android.graphics.paint;
import android.graphics.shader;
import android.util.attributeset;
import android.widget.textview;

/**
 * 闪耀字体
 */

public class shiningfontview extends textview {
  private int mviewwidth;
  private paint mpaint;
  private lineargradient mlineargradient;
  private matrix mgradientmatrix;
  private int mtranslate;

  public shiningfontview(context context) {
    super(context);
  }

  public shiningfontview(context context, attributeset attrs) {
    super(context, attrs);
  }

  public shiningfontview(context context, attributeset attrs, int defstyleattr) {
    super(context, attrs, defstyleattr);
  }

  @override
  protected void onsizechanged(int w, int h, int oldw, int oldh) {
    super.onsizechanged(w, h, oldw, oldh);
    if (mviewwidth == 0) {
      mviewwidth = getmeasuredwidth();
      if (mviewwidth > 0) {
        mpaint = getpaint();
        mlineargradient = new lineargradient(0, 0, mviewwidth, 0, new int[]{color.blue, 0xffffffff, color.blue}, null, shader.tilemode.clamp);
        mpaint.setshader(mlineargradient);
        mgradientmatrix = new matrix();
      }
    }
  }

  @override
  protected void ondraw(canvas canvas) {
    super.ondraw(canvas);
    if (mgradientmatrix != null) {
      mtranslate += mviewwidth / 5;
      if (mtranslate > 2 * mviewwidth) {
        mtranslate = -mviewwidth;
      }
      mgradientmatrix.settranslate(mtranslate, 0);
      mlineargradient.setlocalmatrix(mgradientmatrix);
      postinvalidatedelayed(100);
    }
  }

}

使用方式如下

 <com.hz56pt.huipaotui.view.shiningfontview//包裹起来就行
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centervertical="true"
      android:layout_marginleft="@dimen/margin_10"
      android:layout_torightof="@id/iv_tips1_icon"
      android:text="@string/tips1" />

效果图如下

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。