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package com.hh.xuetubao.Utils;
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/**
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* Time: 11/23/2019 10:08
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* Author: tao
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* Description:
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*/
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import android.animation.ValueAnimator;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.LinearGradient;
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import android.graphics.Paint;
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import android.graphics.RectF;
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import android.graphics.Shader;
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import android.support.annotation.ColorRes;
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import android.support.annotation.Nullable;
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import android.support.v4.content.ContextCompat;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.animation.OvershootInterpolator;
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import com.hh.xuetubao.R;
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public class CircularProgressView extends View {
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private Paint mBackPaint, mProgPaint; // 绘制画笔
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private RectF mRectF; // 绘制区域
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private int[] mColorArray; // 圆环渐变色
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private int mProgress; // 圆环进度(0-100)
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public CircularProgressView(Context context) {
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this(context, null);
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}
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public CircularProgressView(Context context, @Nullable AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public CircularProgressView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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@SuppressLint("Recycle")
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TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CircularProgressView);
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// 初始化背景圆环画笔
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mBackPaint = new Paint();
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mBackPaint.setStyle(Paint.Style.STROKE); // 只描边，不填充
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mBackPaint.setStrokeCap(Paint.Cap.ROUND); // 设置圆角
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mBackPaint.setAntiAlias(true); // 设置抗锯齿
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mBackPaint.setDither(true); // 设置抖动
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mBackPaint.setStrokeWidth(typedArray.getDimension(R.styleable.CircularProgressView_backWidth, 5));
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mBackPaint.setColor(typedArray.getColor(R.styleable.CircularProgressView_backColor, Color.LTGRAY));
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// 初始化进度圆环画笔
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mProgPaint = new Paint();
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mProgPaint.setStyle(Paint.Style.STROKE); // 只描边，不填充
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mProgPaint.setStrokeCap(Paint.Cap.ROUND); // 设置圆角
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mProgPaint.setAntiAlias(true); // 设置抗锯齿
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mProgPaint.setDither(true); // 设置抖动
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mProgPaint.setStrokeWidth(typedArray.getDimension(R.styleable.CircularProgressView_progWidth, 10));
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mProgPaint.setColor(typedArray.getColor(R.styleable.CircularProgressView_progColor, Color.BLUE));
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// 初始化进度圆环渐变色
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int startColor = typedArray.getColor(R.styleable.CircularProgressView_progStartColor, -1);
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int firstColor = typedArray.getColor(R.styleable.CircularProgressView_progFirstColor, -1);
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if (startColor != -1 && firstColor != -1) mColorArray = new int[]{startColor, firstColor};
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else mColorArray = null;
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// 初始化进度
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mProgress = typedArray.getInteger(R.styleable.CircularProgressView_progress, 0);
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typedArray.recycle();
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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int viewWide = getMeasuredWidth() - getPaddingLeft() - getPaddingRight();
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int viewHigh = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();
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int mRectLength = (int) ((viewWide > viewHigh ? viewHigh : viewWide) - (mBackPaint.getStrokeWidth() > mProgPaint.getStrokeWidth() ? mBackPaint.getStrokeWidth() : mProgPaint.getStrokeWidth()));
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int mRectL = getPaddingLeft() + (viewWide - mRectLength) / 2;
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int mRectT = getPaddingTop() + (viewHigh - mRectLength) / 2;
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mRectF = new RectF(mRectL, mRectT, mRectL + mRectLength, mRectT + mRectLength);
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// 设置进度圆环渐变色
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if (mColorArray != null && mColorArray.length > 1)
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mProgPaint.setShader(new LinearGradient(0, 0, 0, getMeasuredWidth(), mColorArray, null, Shader.TileMode.MIRROR));
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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canvas.drawArc(mRectF, 0, 360, false, mBackPaint);
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canvas.drawArc(mRectF, 275, 360 * mProgress / 100, false, mProgPaint);
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}
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// ---------------------------------------------------------------------------------------------
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/**
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* 获取当前进度
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*
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* @return 当前进度（0-100）
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*/
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public int getProgress() {
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return mProgress;
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}
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/**
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* 设置当前进度
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*
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* @param progress 当前进度（0-100）
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*/
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public void setProgress(int progress) {
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this.mProgress = progress;
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invalidate();
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}
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/**
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* 设置当前进度，并展示进度动画。如果动画时间小于等于0，则不展示动画
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*
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* @param progress 当前进度（0-100）
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* @param animTime 动画时间（毫秒）
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*/
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public void setProgress(int progress, long animTime) {
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if (animTime <= 0) setProgress(progress);
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else {
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ValueAnimator animator = ValueAnimator.ofInt(mProgress, progress);
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animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator animation) {
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mProgress = (int) animation.getAnimatedValue();
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invalidate();
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}
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});
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animator.setInterpolator(new OvershootInterpolator());
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animator.setDuration(animTime);
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animator.start();
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}
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}
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/**
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* 设置背景圆环宽度
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*
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* @param width 背景圆环宽度
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*/
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public void setBackWidth(int width) {
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mBackPaint.setStrokeWidth(width);
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invalidate();
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}
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/**
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* 设置背景圆环颜色
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*
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* @param color 背景圆环颜色
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*/
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public void setBackColor(@ColorRes int color) {
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mBackPaint.setColor(ContextCompat.getColor(getContext(), color));
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invalidate();
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}
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/**
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* 设置进度圆环宽度
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*
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* @param width 进度圆环宽度
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*/
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public void setProgWidth(int width) {
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mProgPaint.setStrokeWidth(width);
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invalidate();
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}
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/**
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* 设置进度圆环颜色
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*
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* @param color 景圆环颜色
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*/
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public void setProgColor(@ColorRes int color) {
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mProgPaint.setColor(ContextCompat.getColor(getContext(), color));
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mProgPaint.setShader(null);
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invalidate();
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}
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/**
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* 设置进度圆环颜色(支持渐变色)
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*
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* @param startColor 进度圆环开始颜色
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* @param firstColor 进度圆环结束颜色
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*/
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public void setProgColor(@ColorRes int startColor, @ColorRes int firstColor) {
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mColorArray = new int[]{ContextCompat.getColor(getContext(), startColor), ContextCompat.getColor(getContext(), firstColor)};
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mProgPaint.setShader(new LinearGradient(0, 0, 0, getMeasuredWidth(), mColorArray, null, Shader.TileMode.MIRROR));
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invalidate();
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}
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/**
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* 设置进度圆环颜色(支持渐变色)
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*
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* @param colorArray 渐变色集合
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*/
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public void setProgColor(@ColorRes int[] colorArray) {
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if (colorArray == null || colorArray.length < 2) return;
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mColorArray = new int[colorArray.length];
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for (int index = 0; index < colorArray.length; index++)
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mColorArray[index] = ContextCompat.getColor(getContext(), colorArray[index]);
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mProgPaint.setShader(new LinearGradient(0, 0, 0, getMeasuredWidth(), mColorArray, null, Shader.TileMode.MIRROR));
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invalidate();
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}
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} |
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\ No newline at end of file |
...
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