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张攀
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149 changes: 149 additions & 0 deletions
149
app/src/main/java/com/example/zhpan/circleviewpager/RectangleIndicatorView.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| package com.example.zhpan.circleviewpager; | ||
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| import android.content.Context; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Color; | ||
| import android.graphics.Paint; | ||
| import android.util.AttributeSet; | ||
| import android.view.View; | ||
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| import com.zhpan.bannerview.enums.IndicatorSlideMode; | ||
| import com.zhpan.bannerview.indicator.IIndicator; | ||
| import com.zhpan.bannerview.utils.DpUtils; | ||
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| /** | ||
| * Created by zhpan on 2017/12/6. | ||
| */ | ||
| public class RectangleIndicatorView extends View implements IIndicator { | ||
| private int normalColor; | ||
| private int checkedColor; | ||
| private Paint mPaint; | ||
| private int mPageSize; | ||
| private float sliderWidth; | ||
| private float sliderHeight; | ||
| private int currentPosition; | ||
| private float mMargin; | ||
| private IndicatorSlideMode mSlideStyle = IndicatorSlideMode.SMOOTH; | ||
| private float slideProgress; | ||
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| public RectangleIndicatorView(Context context) { | ||
| this(context, null); | ||
| } | ||
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| public RectangleIndicatorView(Context context, AttributeSet attrs) { | ||
| this(context, attrs, 0); | ||
| } | ||
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| public RectangleIndicatorView(Context context, AttributeSet attrs, int defStyleAttr) { | ||
| super(context, attrs, defStyleAttr); | ||
| normalColor = Color.parseColor("#8C18171C"); | ||
| checkedColor = Color.parseColor("#8C6C6D72"); | ||
| mPaint = new Paint(); | ||
| mPaint.setColor(normalColor); | ||
| mPaint.setAntiAlias(true); | ||
| sliderWidth = DpUtils.dp2px(context, 5); | ||
| sliderHeight = sliderWidth / 2; | ||
| mMargin = sliderWidth; | ||
| } | ||
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| @Override | ||
| protected void onSizeChanged(int w, int h, int oldw, int oldh) { | ||
| super.onSizeChanged(w, h, oldw, oldh); | ||
| } | ||
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| @Override | ||
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { | ||
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); | ||
| setMeasuredDimension((int) ((mPageSize - 1) * mMargin + sliderWidth * mPageSize), | ||
| (int) (sliderHeight)); | ||
| } | ||
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| @Override | ||
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { | ||
| super.onLayout(changed, left, top, right, bottom); | ||
| } | ||
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| @Override | ||
| protected void onDraw(Canvas canvas) { | ||
| super.onDraw(canvas); | ||
| mPaint.setColor(normalColor); | ||
| for (int i = 0; i < mPageSize; i++) { | ||
| mPaint.setColor(normalColor); | ||
| canvas.drawRect(i * (sliderWidth) + i * +mMargin, 0, i * (sliderWidth) + i * +mMargin + sliderWidth, sliderHeight, mPaint); | ||
| } | ||
| drawSliderStyle(canvas); | ||
| } | ||
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| @Override | ||
| public void onPageSelected(int position) { | ||
| if (mSlideStyle == IndicatorSlideMode.NORMAL) { | ||
| this.currentPosition = position; | ||
| invalidate(); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { | ||
| if (mSlideStyle == IndicatorSlideMode.SMOOTH) { | ||
| slideProgress = positionOffset; | ||
| currentPosition = position; | ||
| invalidate(); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void onPageScrollStateChanged(int state) { | ||
|
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| } | ||
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| private void drawSliderStyle(Canvas canvas) { | ||
| switch (mSlideStyle) { | ||
| case NORMAL: | ||
| slideProgress = 0; | ||
| case SMOOTH: | ||
| slideProgress = (currentPosition == mPageSize - 1) ? 0 : slideProgress; | ||
| break; | ||
| } | ||
| mPaint.setColor(checkedColor); | ||
| canvas.drawRect(currentPosition * (sliderWidth) + currentPosition * +mMargin + (sliderWidth + mMargin) * slideProgress, 0, currentPosition * (sliderWidth) + currentPosition * +mMargin + (sliderWidth + mMargin) * slideProgress + sliderWidth, sliderHeight, mPaint); | ||
| } | ||
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| public RectangleIndicatorView setNormalColor(int normalColor) { | ||
| this.normalColor = normalColor; | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setCheckedColor(int checkedColor) { | ||
| this.checkedColor = checkedColor; | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setPageSize(int pageSize) { | ||
| this.mPageSize = pageSize; | ||
| requestLayout(); | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setIndicatorMargin(float margin) { | ||
| if (margin > 0) { | ||
| this.mMargin = DpUtils.dp2px(getContext(), margin); | ||
| } | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setSliderWidth(float sliderWidth) { | ||
| this.sliderWidth = DpUtils.dp2px(getContext(), sliderWidth); | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setSliderHeight(float sliderHeight) { | ||
| this.sliderHeight = DpUtils.dp2px(getContext(), sliderHeight); | ||
| return this; | ||
| } | ||
|
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| public RectangleIndicatorView setSlideStyle(IndicatorSlideMode slideStyle) { | ||
| mSlideStyle = slideStyle; | ||
| return this; | ||
| } | ||
| } |
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