Example usage for android.graphics Canvas drawLine

Introduction

In this page you can find the example usage for android.graphics Canvas drawLine.

Prototype

public void drawLine(float startX, float startY, float stopX, float stopY, @NonNull Paint paint) 

Source Link

Document

Draw a line segment with the specified start and stop x,y coordinates, using the specified paint.

Usage

From source file:com.example.helloandroid.animation.PagerSlidingTabStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;//from ww  w.ja  v a  2 s .  c o  m
    }

    final int height = getHeight();

    // draw indicator line
    rectPaint.setColor(indicatorColor);

    Utility.logd("onDraw : currentPosition = " + currentPosition);
    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    Utility.logd("currentPositionOffset = " + currentPositionOffset);
    Utility.logd("tabCount = " + tabCount);

    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    Utility.logd("lineLeft = " + lineLeft + ", indicatorHeight = " + indicatorHeight + ", " + "lineRight = "
            + lineRight + ", height=" + height);

    //canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    // draw underline
    Utility.logd("height=" + height + ", underlineHeight = " + underlineHeight + ", "
            + "tabsContainer.getWidth() = " + tabsContainer.getWidth());

    rectPaint.setColor(underlineColor);

    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:net.droidsolutions.droidcharts.core.renderer.xy.AbstractXYItemRenderer.java

/**
 * Draws a vertical line on the chart to represent a 'range marker'.
 *
 * @param g2  the graphics device./*w  w w .j  a v  a  2s  .c  o m*/
 * @param plot  the plot.
 * @param domainAxis  the domain axis.
 * @param marker  the marker line.
 * @param dataArea  the axis data area.
 */
public void drawDomainMarker(Canvas g2, XYPlot plot, ValueAxis domainAxis, Marker marker,
        Rectangle2D dataArea) {

    if (marker instanceof ValueMarker) {
        ValueMarker vm = (ValueMarker) marker;
        double value = vm.getValue();
        Range range = domainAxis.getRange();
        if (!range.contains(value)) {
            return;
        }

        double v = domainAxis.valueToJava2D(value, dataArea, plot.getDomainAxisEdge());

        PlotOrientation orientation = plot.getOrientation();
        Line2D line = null;
        if (orientation == PlotOrientation.HORIZONTAL) {
            line = new Line2D.Double(dataArea.getMinX(), v, dataArea.getMaxX(), v);
        } else if (orientation == PlotOrientation.VERTICAL) {
            line = new Line2D.Double(v, dataArea.getMinY(), v, dataArea.getMaxY());
        }

        Paint paint = marker.getPaint();
        int oldAlpha = paint.getAlpha();
        paint.setAlpha(marker.getAlpha());
        Float stroke = marker.getStroke();

        paint.setStyle(Paint.Style.STROKE);
        paint.setStrokeWidth(stroke);

        g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(), (float) line.getY2(),
                paint);

        String label = marker.getLabel();
        RectangleAnchor anchor = marker.getLabelAnchor();
        if (label != null) {
            Font labelFont = marker.getLabelFont();

            Paint lPaint = marker.getLabelPaint();
            lPaint.setTypeface(labelFont.getTypeFace());
            lPaint.setTextSize(labelFont.getSize());
            int lOldAlpha = lPaint.getAlpha();
            lPaint.setAlpha(marker.getAlpha());
            Point2D coordinates = calculateDomainMarkerTextAnchorPoint(g2, orientation, dataArea,
                    line.getBounds2D(), marker.getLabelOffset(), LengthAdjustmentType.EXPAND, anchor);
            TextUtilities.drawAlignedString(label, g2, (float) coordinates.getX(), (float) coordinates.getY(),
                    marker.getLabelTextAnchor(), lPaint);
            lPaint.setAlpha(lOldAlpha);
        }
        paint.setAlpha(oldAlpha);
    } else if (marker instanceof IntervalMarker) {
        IntervalMarker im = (IntervalMarker) marker;
        double start = im.getStartValue();
        double end = im.getEndValue();
        Range range = domainAxis.getRange();
        if (!(range.intersects(start, end))) {
            return;
        }

        double start2d = domainAxis.valueToJava2D(start, dataArea, plot.getDomainAxisEdge());
        double end2d = domainAxis.valueToJava2D(end, dataArea, plot.getDomainAxisEdge());
        double low = Math.min(start2d, end2d);
        double high = Math.max(start2d, end2d);

        PlotOrientation orientation = plot.getOrientation();
        Rectangle2D rect = null;
        if (orientation == PlotOrientation.HORIZONTAL) {
            // clip top and bottom bounds to data area
            low = Math.max(low, dataArea.getMinY());
            high = Math.min(high, dataArea.getMaxY());
            rect = new Rectangle2D.Double(dataArea.getMinX(), low, dataArea.getWidth(), high - low);
        } else if (orientation == PlotOrientation.VERTICAL) {
            // clip left and right bounds to data area
            low = Math.max(low, dataArea.getMinX());
            high = Math.min(high, dataArea.getMaxX());
            rect = new Rectangle2D.Double(low, dataArea.getMinY(), high - low, dataArea.getHeight());
        }

        Paint p = marker.getPaint();
        int oldAlpha = p.getAlpha();
        p.setAlpha(marker.getAlpha());
        p.setStyle(Paint.Style.FILL);

        g2.drawRect((float) rect.getMinX(), (float) rect.getMinY(), (float) rect.getMaxX(),
                (float) rect.getMaxY(), p);
        p.setAlpha(oldAlpha);
        // now draw the outlines, if visible...
        if (im.getOutlinePaint() != null && im.getOutlineStroke() != null) {
            if (orientation == PlotOrientation.VERTICAL) {
                Line2D line = new Line2D.Double();
                double y0 = dataArea.getMinY();
                double y1 = dataArea.getMaxY();
                Paint oPiant = im.getOutlinePaint();
                oPiant.setStyle(Paint.Style.STROKE);
                int oOldAlpha = oPiant.getAlpha();
                oPiant.setAlpha(marker.getAlpha());
                oPiant.setStrokeWidth(im.getOutlineStroke());

                if (range.contains(start)) {
                    line.setLine(start2d, y0, start2d, y1);
                    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(),
                            (float) line.getY2(), oPiant);
                }
                if (range.contains(end)) {
                    line.setLine(end2d, y0, end2d, y1);
                    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(),
                            (float) line.getY2(), oPiant);
                }
                oPiant.setAlpha(oOldAlpha);
            } else { // PlotOrientation.HORIZONTAL
                Line2D line = new Line2D.Double();
                double x0 = dataArea.getMinX();
                double x1 = dataArea.getMaxX();
                Paint oPiant = im.getOutlinePaint();
                oPiant.setStyle(Paint.Style.STROKE);
                int oOldAlpha = oPiant.getAlpha();
                oPiant.setAlpha(marker.getAlpha());
                oPiant.setStrokeWidth(im.getOutlineStroke());
                if (range.contains(start)) {
                    line.setLine(x0, start2d, x1, start2d);
                    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(),
                            (float) line.getY2(), oPiant);
                }
                if (range.contains(end)) {
                    line.setLine(x0, end2d, x1, end2d);
                    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(),
                            (float) line.getY2(), oPiant);
                }
                oPiant.setAlpha(oOldAlpha);
            }
        }

        String label = marker.getLabel();
        RectangleAnchor anchor = marker.getLabelAnchor();
        if (label != null) {
            Font labelFont = marker.getLabelFont();
            Paint paint = marker.getLabelPaint();
            paint.setTypeface(labelFont.getTypeFace());
            paint.setTextSize(labelFont.getSize());
            Point2D coordinates = calculateDomainMarkerTextAnchorPoint(g2, orientation, dataArea, rect,
                    marker.getLabelOffset(), marker.getLabelOffsetType(), anchor);
            TextUtilities.drawAlignedString(label, g2, (float) coordinates.getX(), (float) coordinates.getY(),
                    marker.getLabelTextAnchor(), paint);
        }

    }

}

---

From source file:com.astuetz.PagerSlidingTabStripExtends.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;//from w w w  .  j  a  v  a2  s.  com
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }
    //indicator
    //        canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
    Path path = new Path();
    float x1 = (lineRight + lineLeft) / 2;
    float y1 = height - indicatorHeight;
    //
    int triangleWidth = (int) ((lineRight - lineLeft) * 0.40f);
    float x2 = x1 + triangleWidth / 2;
    float y2 = height;
    float x3 = x1 - triangleWidth / 2;
    float y3 = height;

    path.moveTo(x1, y1);
    path.lineTo(x2, y2);
    path.lineTo(x3, y3);
    path.lineTo(x1, y1);
    canvas.drawPath(path, rectPaint);

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:com.astuetz.PagerSlidingTabStripCustom.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;/*from   ww w  . j  av  a 2 s.c  o m*/
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }
    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    //draw triangle 
    float bianchang = indicatorHeight + 10;
    float x1 = (lineRight + lineLeft) / 2;
    float y1 = height - bianchang;
    float x2 = x1 + bianchang * 2;
    float y2 = y1 + bianchang;
    float x3 = x1 - bianchang * 2;
    float y3 = y1 + bianchang;

    Path path = new Path();
    path.moveTo(x1, y1);
    path.lineTo(x2, y2);
    path.lineTo(x3, y3);
    path.close();
    canvas.drawPath(path, rectPaint);

    // draw underline   tabcontent

    rectPaint.setColor(underlineColor);

    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider tab

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:ingbank.com.tr.happybanking.common.ui.controls.PagerSlidingTabStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;/*ww w.jav  a2  s .c  o m*/
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    //canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    if (triangleIndicator) {
        Rect r = new Rect();
        int left = (int) lineLeft + (int) (((lineRight - lineLeft) / 2) - (indicatorHeight / 2)) - 20;
        int top = height - indicatorHeight;
        int right = (int) left + indicatorHeight + 30;
        int bottom = height;
        r.set(left, top, right, bottom);
        Path path = getEquilateralTriangle(r);
        canvas.drawPath(path, rectPaint);
    } else {
        canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
    }

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:PagerSlidingTab.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;//from   w  w w  .j  a va 2 s  . co  m
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
    //
    //      canvas.drawRect(lineLeft, 0, lineRight, indicatorHeight, rectPaint);
    //
    //      canvas.drawRect(lineLeft,height/2-indicatorHeight/2, lineRight, height/2+indicatorHeight/2, rectPaint);
    //
    //      rectPaint.setColor(Color.parseColor("#66006BCE"));
    //      canvas.drawRect(lineLeft,0, lineRight, height, rectPaint);
    //
    //      RectF rect = new RectF(lineLeft, 0, lineRight, height);
    //      canvas.drawRoundRect(rect, 8, 8, rectPaint);

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:com.dashihui.afford.ui.widget.WdtPagerSlidingTabStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;//from w  w  w  . j  av a  2s. c  om
    }

    final int height = getHeight();

    // draw indicator line
    //tab 
    rectPaint.setColor(getResources().getColor(R.color.btfontBlue));
    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();
    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {
        //?tab?
        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();
        if (lineLeft != nextTabLeft && yesBoolean < 3) {
            //??tab
            //?
            //            Log.i(TAG, "??===TTT==nextTabLeft=====>"+nextTabLeft);
            //            Log.i(TAG, "??===TTT==lineLeft=====>"+lineLeft);
            yesBoolean++;
        } else {
            lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
            lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
            yesBoolean++;
        }

    }
    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    // draw underline
    //?
    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:com.nicolas.coding.third.WechatTab.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;/*w w w. j a v  a2s  . co  m*/
    }

    final int height = getHeight();

    // draw underline
    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw indicator line
    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    //        TextView tv = ((TextView) currentTab);
    //        String s = tv.getText().toString();
    //        float widths[] = new float[s.length()];
    //        tv.getPaint().getTextWidths(s, widths);
    //        float StringWidth = 0;
    //        for (float item : widths) {
    //            StringWidth += item;
    //        }
    //        int padding = (int) ((tv.getWidth() - StringWidth) / 2 - mMyUnderlinePadding);
    //        if (padding < 0) {
    //            padding = 0;
    //        }

    canvas.drawRect(lineLeft + mMyUnderlinePadding, height - indicatorHeight, lineRight - mMyUnderlinePadding,
            height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:com.next.PagerSlidingTabStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;//from   w  ww .  j  ava 2s.c om
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    updateTabColor(tabsContainer.getChildAt(currentPosition), 1.0f);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);

        /*
        if(currentPositionOffset > 0.5) {
        updateTabColor(currentTab, tabTextColorNormal);
        updateTabColor(nextTab, tabTextColor);
        } else {
        updateTabColor(currentTab, tabTextColor);
        updateTabColor(nextTab, tabTextColorNormal);
        }
        */

        updateTabColor(currentTab, 1 - currentPositionOffset);
        updateTabColor(nextTab, currentPositionOffset);

    }

    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

From source file:com.inspiron.googlegoogle.UI.View.PagerSlidingTab.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (isInEditMode() || tabCount == 0) {
        return;/*from  www .  j ava  2s  .c o m*/
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }
    //
    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
    //
    //      canvas.drawRect(lineLeft, 0, lineRight,indicatorHeight, rectPaint);
    //
    //      canvas.drawRect(lineLeft,height/2-indicatorHeight/2, lineRight,height/2+indicatorHeight/2, rectPaint);
    //
    //      rectPaint.setColor(Color.parseColor("#660077E5"));
    //      canvas.drawRect(lineLeft,0, lineRight,height, rectPaint);
    //
    //      RectF rect = new RectF(lineLeft,0, lineRight,height);
    //      canvas.drawRoundRect(rect, 6, 6, rectPaint);

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

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