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Merge pull request #76 from zhpanvip/dev_2.6.4
v2.6.4
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159 changes: 159 additions & 0 deletions
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app/src/main/java/com/example/zhpan/circleviewpager/view/DrawableIndicator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| package com.example.zhpan.circleviewpager.view; | ||
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| import android.content.Context; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.BitmapFactory; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Matrix; | ||
| import android.util.AttributeSet; | ||
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| import androidx.annotation.DrawableRes; | ||
| import androidx.annotation.Nullable; | ||
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| import com.zhpan.bannerview.indicator.BaseIndicatorView; | ||
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| /** | ||
| * @ author : zhouweibin | ||
| * @ time: 2019/12/18 17:04. | ||
| * @ desc: 选中与未选中的图片长宽可能不一样 | ||
| **/ | ||
| public class DrawableIndicator extends BaseIndicatorView { | ||
| // 选中与未选中的图片 | ||
| private Bitmap mCheckedBitmap, mNormalBitmap; | ||
| // 图片之间的间距 | ||
| private int mIndicatorPadding; | ||
| // 选中图片的宽高 | ||
| private int mCheckedBitmapWidth, mCheckedBitmapHeight; | ||
| //未选中图片的宽高 | ||
| private int mNormalBitmapWidth, mNormalBitmapHeight; | ||
| private IndicatorSize mIndicatorSize; | ||
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| public DrawableIndicator(Context context) { | ||
| this(context, null); | ||
| } | ||
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| public DrawableIndicator(Context context, @Nullable AttributeSet attrs) { | ||
| this(context, attrs, 0); | ||
| } | ||
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| public DrawableIndicator(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { | ||
| super(context, attrs, defStyleAttr); | ||
| } | ||
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| @Override | ||
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { | ||
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); | ||
| int maxHeight = Math.max(mCheckedBitmapHeight, mNormalBitmapHeight); | ||
| int realWidth = mCheckedBitmapWidth + (mNormalBitmapWidth + mIndicatorPadding) * (getPageSize() - 1); | ||
| setMeasuredDimension(realWidth, maxHeight); | ||
| } | ||
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| @Override | ||
| protected void onDraw(Canvas canvas) { | ||
| super.onDraw(canvas); | ||
| if (getPageSize() > 1 || mCheckedBitmap == null || mNormalBitmap == null) { | ||
| for (int i = 1; i < getPageSize() + 1; i++) { | ||
| int left; | ||
| int top; | ||
| Bitmap bitmap = mNormalBitmap; | ||
| int index = i - 1; | ||
| if (index < getCurrentPosition()) { | ||
| left = (i - 1) * (mNormalBitmapWidth + mIndicatorPadding); | ||
| top = getMeasuredHeight() / 2 - mNormalBitmapHeight / 2; | ||
| } else if (index == getCurrentPosition()) { | ||
| left = (i - 1) * (mNormalBitmapWidth + mIndicatorPadding); | ||
| top = getMeasuredHeight() / 2 - mCheckedBitmapHeight / 2; | ||
| bitmap = mCheckedBitmap; | ||
| } else { | ||
| left = (i - 1) * mIndicatorPadding + (i - 2) * mNormalBitmapWidth + mCheckedBitmapWidth; | ||
| top = getMeasuredHeight() / 2 - mNormalBitmapHeight / 2; | ||
| } | ||
| drawIcon(canvas, left, top, bitmap); | ||
| } | ||
| } | ||
| } | ||
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| private void drawIcon(Canvas canvas, int left, int top, Bitmap icon) { | ||
| if (icon == null) { | ||
| return; | ||
| } | ||
| canvas.drawBitmap(icon, left, top, null); | ||
| } | ||
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| private void initIconSize() { | ||
| if (mCheckedBitmap != null) { | ||
| if (mIndicatorSize != null) { | ||
| if (mCheckedBitmap.isMutable()) { | ||
| mCheckedBitmap.setWidth(mIndicatorSize.checkedWidth); | ||
| mCheckedBitmap.setHeight(mIndicatorSize.checkedHeight); | ||
| } else { | ||
| int width = mCheckedBitmap.getWidth(); | ||
| int height = mCheckedBitmap.getHeight(); | ||
| float scaleWidth = ((float) (mIndicatorSize.checkedWidth) / width); | ||
| float scaleHeight = ((float) (mIndicatorSize.checkedHeight) / height); | ||
| Matrix matrix = new Matrix(); | ||
| matrix.postScale(scaleWidth, scaleHeight); | ||
| mCheckedBitmap = Bitmap.createBitmap(mCheckedBitmap, 0, 0, width, height, matrix, true); | ||
| } | ||
| } | ||
| mCheckedBitmapWidth = mCheckedBitmap.getWidth(); | ||
| mCheckedBitmapHeight = mCheckedBitmap.getHeight(); | ||
| } | ||
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| if (mNormalBitmap != null) { | ||
| if (mIndicatorSize != null) { | ||
| if (mNormalBitmap.isMutable()) { | ||
| mNormalBitmap.setWidth(mIndicatorSize.normalWidth); | ||
| mNormalBitmap.setHeight(mIndicatorSize.normalHeight); | ||
| } else { | ||
| int width = mNormalBitmap.getWidth(); | ||
| int height = mNormalBitmap.getHeight(); | ||
| float scaleWidth = ((float) (mIndicatorSize.normalWidth) / mNormalBitmap.getWidth()); | ||
| float scaleHeight = ((float) (mIndicatorSize.normalHeight) / mNormalBitmap.getHeight()); | ||
| Matrix matrix = new Matrix(); | ||
| matrix.postScale(scaleWidth, scaleHeight); | ||
| mNormalBitmap = Bitmap.createBitmap(mNormalBitmap, 0, 0, width, height, matrix, true); | ||
| } | ||
| } | ||
| mNormalBitmapWidth = mNormalBitmap.getWidth(); | ||
| mNormalBitmapHeight = mNormalBitmap.getHeight(); | ||
| } | ||
| } | ||
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| public DrawableIndicator setIndicatorDrawable(@DrawableRes int normalDrawable, @DrawableRes int checkedDrawable) { | ||
| mNormalBitmap = mCheckedBitmap = BitmapFactory.decodeResource(getResources(), normalDrawable); | ||
| mCheckedBitmap = BitmapFactory.decodeResource(getResources(), checkedDrawable); | ||
| initIconSize(); | ||
| postInvalidate(); | ||
| return this; | ||
| } | ||
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| public DrawableIndicator setIndicatorSize(int normalWidth, int normalHeight, int checkedWidth, int checkedHeight) { | ||
| this.mIndicatorSize = new IndicatorSize(normalWidth, normalHeight, checkedWidth, checkedHeight); | ||
| initIconSize(); | ||
| postInvalidate(); | ||
| return this; | ||
| } | ||
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| public DrawableIndicator setIndicatorGap(int padding) { | ||
| if (padding >= 0) { | ||
| mIndicatorPadding = padding; | ||
| postInvalidate(); | ||
| } | ||
| return this; | ||
| } | ||
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| static class IndicatorSize { | ||
| int normalWidth; | ||
| int checkedWidth; | ||
| int normalHeight; | ||
| int checkedHeight; | ||
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| public IndicatorSize(int normalWidth, int normalHeight, int checkedWidth, int checkedHeight) { | ||
| this.normalWidth = normalWidth; | ||
| this.checkedWidth = checkedWidth; | ||
| this.normalHeight = normalHeight; | ||
| this.checkedHeight = checkedHeight; | ||
| } | ||
| } | ||
| } |
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