Java DashPathEffect类代码示例

import android.graphics.DashPathEffect; //导入依赖的package包/类
@[email protected]("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@[email protected]("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表上拉Footer的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@Override
@SuppressLint("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@Override
@SuppressLint("DrawAllocation")
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表上拉Footer的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
public DashedLine(Context context, AttributeSet attrs) {
    super(context, attrs);
    int dashGap, dashLength, dashThickness;
    int color;

    TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.DashedLine, 0, 0);

    try {
        dashGap = a.getDimensionPixelSize(R.styleable.DashedLine_dashGap, 5);
        dashLength = a.getDimensionPixelSize(R.styleable.DashedLine_dashLength, 5);
        dashThickness = a.getDimensionPixelSize(R.styleable.DashedLine_dashThickness, 3);
        color = a.getColor(R.styleable.DashedLine_color, 0xff000000);
        orientation = a.getInt(R.styleable.DashedLine_orientation, ORIENTATION_HORIZONTAL);
    } finally {
        a.recycle();
    }

    mPaint = new Paint();
    mPaint.setAntiAlias(true);
    mPaint.setColor(color);
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setStrokeWidth(dashThickness);
    mPaint.setPathEffect(new DashPathEffect(new float[]{dashLength, dashGap,}, 0));
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
/**
 * Sets up paint according to the props set on a shadow view. Returns {@code true}
 * if the stroke should be drawn, {@code false} if not.
 */
protected boolean setupStrokePaint(Paint paint, float opacity, @Nullable RectF box) {
  paint.reset();
  if (TextUtils.isEmpty(mStrokeColor)) {
    return false;
  }

  paint.setFlags(Paint.ANTI_ALIAS_FLAG);
  paint.setStyle(Paint.Style.STROKE);
  paint.setStrokeCap(mStrokeLinecap);
  paint.setStrokeJoin(mStrokeLinejoin);
  paint.setStrokeMiter(mStrokeMiterlimit * mScale);
  paint.setStrokeWidth(mStrokeWidth * mScale);
  setupPaint(paint, opacity, mStrokeColor, box);

  if (mStrokeDasharray != null && mStrokeDasharray.length > 0) {
    paint.setPathEffect(new DashPathEffect(mStrokeDasharray, mStrokeDashoffset));
  }

  return true;
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
public void setPaintParam(int color, int paintWidth, int style) {
    mPaint.setStrokeWidth(paintWidth);
    mPaint.setColor(color);
    mPaint.setAntiAlias(true);

    switch (style) {
        case STYLE_DASH:
            mPaint.setStyle(Paint.Style.STROKE);
            mPaint.setPathEffect(new DashPathEffect(mBase.mDashEffect, 1));

            this.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
            break;

        case STYLE_SOLID:
            mPaint.setStyle(Paint.Style.FILL);
            break;
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
private void applyDashPatternIfNeeded() {
  if (dashPatternAnimations.isEmpty()) {
    return;
  }

  float scale = lottieDrawable.getScale();
  for (int i = 0; i < dashPatternAnimations.size(); i++) {
    dashPatternValues[i] = dashPatternAnimations.get(i).getValue();
    // If the value of the dash pattern or gap is too small, the number of individual sections
    // approaches infinity as the value approaches 0.
    // To mitigate this, we essentially put a minimum value on the dash pattern size of 1px
    // and a minimum gap size of 0.01.
    if (i % 2 == 0) {
      if (dashPatternValues[i] < 1f) {
        dashPatternValues[i] = 1f;
      }
    } else {
      if (dashPatternValues[i] < 0.1f) {
        dashPatternValues[i] = 0.1f;
      }
    }
    dashPatternValues[i] *= scale;
  }
  float offset = dashPatternOffsetAnimation == null ? 0f : dashPatternOffsetAnimation.getValue();
  paint.setPathEffect(new DashPathEffect(dashPatternValues, offset));
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@[email protected]("DrawAllocation")
protected final void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@Override protected void onDraw(Canvas canvas) {
  super.onDraw(canvas);
  //无效果
  mEffects[0] = null;
  //拐角处变得圆滑
  mEffects[1] = new CornerPathEffect(30);
  //线段上就会产生许多杂点
  mEffects[2] = new DiscretePathEffect(3.0F, 5.0F);
  //绘制虚线
  mEffects[3] = new DashPathEffect(new float[] { 20, 10, 5, 10 }, 0);
  Path path = new Path();
  path.addRect(0, 0, 8, 8, Path.Direction.CCW);
  //设置点的图形,即方形点的虚线,圆形点的虚线
  mEffects[4] = new PathDashPathEffect(path, 12, 0, PathDashPathEffect.Style.ROTATE);
  //组合PathEffect
  mEffects[5] = new ComposePathEffect(mEffects[3], mEffects[1]);
  for (int i = 0; i < mEffects.length; i++) {
    mPaint.setPathEffect(mEffects[i]);
    canvas.drawPath(mPath, mPaint);
    canvas.translate(0, 200);
  }
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
private Line getTargetLine() {
    if (!needDrawTargetLine()) {
        return null;
    }
    PointValue lastRecordPoint = (PointValue) this.mPointValues.get(this.mPointValues.size()
            - 1);
    PointValue targetPoint = new PointValue(((AxisValue) this.mAxisValues.get(this
            .mAxisValues.size() - 1)).getValue(), this.mTargetWeight);
    List<PointValue> points = new ArrayList();
    points.add(lastRecordPoint);
    points.add(targetPoint);
    Line line = new Line(points);
    line.setColor(this.resources.getColor(R.color.da));
    line.setPathEffect(new DashPathEffect(new float[]{15.0f, 15.0f, 15.0f, 15.0f}, 0.0f));
    line.setHasLabels(false);
    if (this.mTypeMode > 0) {
        line.setHasPoints(false);
        return line;
    }
    line.setHasPoints(true);
    return line;
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
private void init(Context context) {
    setLayerType(1, null);
    this.mContext = context;
    this.mBackgroundPaint = new Paint();
    this.mBackgroundPaint.setStrokeWidth(2.0f);
    this.mBackgroundPaint.setAntiAlias(true);
    this.mBackgroundPaint.setColor(-5056771);
    this.mBackgroundPaint.setStyle(Style.STROKE);
    this.mColumnPaint = new Paint();
    this.mColumnPaint.setAntiAlias(true);
    this.mColumnPaint.setStyle(Style.FILL);
    this.mColumnPaint.setColor(-12477447);
    this.mLinePaint = new Paint();
    this.mLinePaint.setAntiAlias(true);
    this.mLinePaint.setStyle(Style.STROKE);
    this.mLinePaint.setColor(-5056771);
    this.mLinePaint.setStrokeWidth(1.0f);
    this.mLinePaint.setPathEffect(new DashPathEffect(new float[]{aj.hA, aj.hA}, 0.0f));
    this.mBackgroundRect = new RectF();
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
public WidgetTextFrame(Context context, @Nullable AttributeSet attrs) {
    super(context, attrs);
    setClipChildren(false);
    setClipToPadding(false);
    mContext = context.getApplicationContext();
    mPaddingSpace = context.getResources().getDimensionPixelSize(R.dimen.edit_text_space);

    mRoundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    PathEffect effect = new DashPathEffect(new float[]{20, 20}, 1);
    mRoundPaint.setAntiAlias(true);
    mRoundPaint.setColor(getResources().getColor(R.color.edit_text_background_color));
    mRoundPaint.setPathEffect(effect);
    mRoundPaint.setStyle(Paint.Style.STROKE);
    mRoundPaint.setStrokeWidth(3);

    mDeletePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mDeletePaint.setAntiAlias(true);
    mDeletePaint.setFilterBitmap(true);
    mDeletePaint.setDither(true);

    setWillNotDraw(false);
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
private void initPaint() {
    mPaint = new Paint();

    mPaint.setColor(mColor);
    mPaint.setStyle(Paint.Style.STROKE);
    /** 边界实际的位置是在边框的中间，所以都要减去边框宽度的一半，所以需要乘以2，才能得到想要的尺寸*/
    mPaint.setStrokeWidth(mThickness * 2);
    if (mLineMode == LINE_MODE_DOTTED) {
        /** 定义 虚线的一些尺寸属性 从0开始，偶数项代表 单个虚线的长度，第二个代表虚线间隔的大小，后面会依次循环*/
        float[] intervals = new float[]{mDottedSize, mDottedSpacingSize};
        /** 第二个参数是 偏移量,填0就够用了*/
        DashPathEffect dashPathEffect = new DashPathEffect(intervals, 0);
        mPaint.setPathEffect(dashPathEffect);
    }
    mPath = new Path();
}
 

import android.graphics.DashPathEffect; //导入依赖的package包/类
@Override
@SuppressLint({"DrawAllocation", "SetTextI18n"})
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isInEditMode()) {//这段代码在运行时不会执行，只会在Studio编辑预览时运行，不用在意性能问题
        int d = DensityUtil.dp2px(5);

        Paint paint = new Paint();
        paint.setStyle(Paint.Style.STROKE);
        paint.setColor(0x44ffffff);
        paint.setStrokeWidth(DensityUtil.dp2px(1));
        paint.setPathEffect(new DashPathEffect(new float[]{d, d, d, d}, 1));
        canvas.drawRect(d, d, getWidth() - d, getBottom() - d, paint);

        TextView textView = new TextView(getContext());
        textView.setText(getClass().getSimpleName()+" 虚假区域\n运行时代表下拉Header的高度【" + DensityUtil.px2dp(getHeight()) + "dp】\n而不会显示任何东西");
        textView.setTextColor(0x44ffffff);
        textView.setGravity(Gravity.CENTER);
        textView.measure(makeMeasureSpec(getWidth(), EXACTLY), makeMeasureSpec(getHeight(), EXACTLY));
        textView.layout(0, 0, getWidth(), getHeight());
        textView.draw(canvas);
    }
}