abstract:这篇文章主要为大家详细介绍了Android自定义View实现闪耀字体效果,具有一定的参考价值,感兴趣的小伙伴们可以参考一下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.Co
这篇文章主要为大家详细介绍了Android自定义View实现闪耀字体效果,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
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" />
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