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60 changes: 60 additions & 0 deletions
60
bannerview/src/main/java/com/zhpan/bannerview/provider/OvalViewOutlineProvider.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,60 @@ | ||
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| package com.zhpan.bannerview.provider; | ||
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| import android.annotation.TargetApi; | ||
| import android.graphics.Outline; | ||
| import android.graphics.Rect; | ||
| import android.os.Build; | ||
| import android.view.View; | ||
| import android.view.ViewOutlineProvider; | ||
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| /** | ||
| * <pre> | ||
| * Created by zhangpan on 2018/12/26. | ||
| * Description:圆形效果 | ||
| * </pre> | ||
| */ | ||
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| @TargetApi(Build.VERSION_CODES.LOLLIPOP) | ||
| public class OvalViewOutlineProvider extends ViewOutlineProvider { | ||
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| public OvalViewOutlineProvider() {} | ||
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| @Override | ||
| public void getOutline(final View view, final Outline outline) { | ||
| Rect ovalRect = convertToCircleRect(new Rect(0, 0, view.getWidth(), view.getHeight())); | ||
| outline.setOval(ovalRect); | ||
| } | ||
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| /** | ||
| * 以矩形的中心点为圆心,较短的边为直径画圆 | ||
| * | ||
| * 注意, 由于整除省略了小数, (x/2)*2不一定等于x | ||
| * | ||
| * Currently, only Outlines that can be represented as a rectangle, circle, or round rect | ||
| * support clipping. | ||
| * | ||
| * @param rect | ||
| * @return | ||
| */ | ||
| private Rect convertToCircleRect(Rect rect) { | ||
| int left, top, right, bottom; | ||
| if(rect.width() > rect.height()) { | ||
| int dH = rect.height() / 2; | ||
| left = rect.centerX() - dH; | ||
| top = 0; | ||
| right = rect.centerX() + dH; | ||
| bottom = dH * 2; | ||
| } else { | ||
| int dW = rect.width() / 2; | ||
| left = 0; | ||
| top = rect.centerY() - dW; | ||
| right = dW * 2; | ||
| bottom = rect.centerY() + dW; | ||
| } | ||
| rect.set(left, top, right, bottom); | ||
| return rect; | ||
| } | ||
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| } |
33 changes: 33 additions & 0 deletions
33
bannerview/src/main/java/com/zhpan/bannerview/provider/RoundViewOutlineProvider.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,33 @@ | ||
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| package com.zhpan.bannerview.provider; | ||
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| import android.annotation.TargetApi; | ||
| import android.graphics.Outline; | ||
| import android.graphics.Rect; | ||
| import android.os.Build; | ||
| import android.view.View; | ||
| import android.view.ViewOutlineProvider; | ||
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| /** | ||
| * <pre> | ||
| * Created by zhangpan on 2018/12/26. | ||
| * Description:圆角效果 | ||
| * </pre> | ||
| */ | ||
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| @TargetApi(Build.VERSION_CODES.LOLLIPOP) | ||
| public class RoundViewOutlineProvider extends ViewOutlineProvider { | ||
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| private float mRadius;// 圆角弧度 | ||
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| public RoundViewOutlineProvider(float radius) { | ||
| this.mRadius = radius; | ||
| } | ||
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| @Override | ||
| public void getOutline(View view, Outline outline) { | ||
| Rect selfRect = new Rect(0, 0, view.getWidth(), view.getHeight());// 绘制区域 | ||
| outline.setRoundRect(selfRect, mRadius); | ||
| } | ||
| } |
56 changes: 56 additions & 0 deletions
56
bannerview/src/main/java/com/zhpan/bannerview/provider/ViewStyleSetter.java
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| @@ -0,0 +1,56 @@ | ||
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| package com.zhpan.bannerview.provider; | ||
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| import android.os.Build; | ||
| import android.view.View; | ||
| import androidx.annotation.RequiresApi; | ||
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| /** | ||
| * <pre> | ||
| * Created by zhangpan on 2018/12/26. | ||
| * Description:为View设置圆角/圆形效果，支持View及ViewGroup，适用Android 5.1及以上系统。 | ||
| * </pre> | ||
| */ | ||
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| public class ViewStyleSetter { | ||
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| private ViewStyleSetter() {} | ||
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| /** | ||
| * 为View设置圆角效果 | ||
| * | ||
| * @param radius 圆角半径 | ||
| */ | ||
| @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) | ||
| public static void applyRoundCorner(View target, float radius) { | ||
| if(target == null) { | ||
| return; | ||
| } | ||
| target.setClipToOutline(true);// 用outline裁剪内容区域 | ||
| target.setOutlineProvider(new RoundViewOutlineProvider(radius)); | ||
| } | ||
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| /** | ||
| * 设置View为圆形 | ||
| */ | ||
| @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) | ||
| public static void applyCircle(View target) { | ||
| if(target == null) { | ||
| return; | ||
| } | ||
| target.setClipToOutline(true);// 用outline裁剪内容区域 | ||
| target.setOutlineProvider(new OvalViewOutlineProvider()); | ||
| } | ||
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| /** | ||
| * 清除View的圆角效果 | ||
| */ | ||
| @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) | ||
| public static void clearShapeStyle(View target) { | ||
| if(target == null) { | ||
| return; | ||
| } | ||
| target.setClipToOutline(false); | ||
| } | ||
| } |