给任何一个View剪裁不同形状（现已有心形，圆形，圆角矩形，三角形，正多边形），即将推出更多形状敬请期待！！！
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compile 'com.github.xwc:ShapeView:1.2.0'
<com.github.xwc.view.ShapeView
android:id="@+id/heartShapeView"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginLeft="10dp"
app:shape_type="heart"
android:layout_marginTop="10dp"
app:layout_constraintLeft_toLeftOf="parent" >
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="@mipmap/image4" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="30dp"
android:text="heart"
android:textColor="@android:color/black"
android:textStyle="bold" />
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:id="@+id/circleShapeView"
android:layout_width="100dp"
android:layout_height="100dp"
app:shape_circle_borderWidth="5dp"
android:padding="5dp"
app:shape_circle_borderColor="@color/colorAccent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="@mipmap/image1" />
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:id="@+id/roundRectShapeView"
android:layout_width="100dp"
android:layout_height="100dp"
app:shape_roundRect_radius="20dp"
app:shape_type="roundRect">
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:id="@+id/triangleShapeView"
android:layout_width="100dp"
android:layout_height="100dp"
app:shape_triangle_percentBottom="0.5"
app:shape_triangle_percentLeft="0"
app:shape_triangle_percentRight="0"
app:shape_type="triangle">
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:layout_width="70dp"
android:layout_height="70dp"
app:shape_polygon_side="6"
app:shape_polygon_turn="0.3"
app:shape_type="polygon">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary" />
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:layout_width="70dp"
android:layout_height="70dp"
app:shape_polygon_side="6"
app:shape_polygon_turn="0.5"
app:shape_type="star">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary" />
</com.github.xwc.view.ShapeView>
<com.github.xwc.view.ShapeView
android:id="@+id/diagonalShapeView"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_marginTop="10dp"
app:shape_diagonal_angle="10"
app:shape_diagonal_direction="left"
app:shape_diagonal_position="bottom"
app:shape_type="diagonal">
<ImageView
android:scaleType="centerCrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="@mipmap/image5" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="ShapeView"
android:textColor="#87CEEB"
android:textSize="18sp"
android:textStyle="bold" />
</com.github.xwc.view.ShapeView> /**
* 圆形
*/
@Override
public void setCirclePath(Path path, int width, int height) {
//xy为圆的圆心 radius为圆的半径 Diection.CW 顺时针方向
path.addCircle(width / 2f, height / 2f, Math.min(width / 2f, height / 2f), Path.Direction.CW);
}
/**
* 带圆角的矩形
*/
@Override
public void setRoundRectPath(RectF rect, Path path, float topLeftDiameter, float topRightDiameter, float bottomRightDiameter, float bottomLeftDiameter) {
topLeftDiameter = topLeftDiameter < 0 ? 0 : topLeftDiameter;
topRightDiameter = topRightDiameter < 0 ? 0 : topRightDiameter;
bottomLeftDiameter = bottomLeftDiameter < 0 ? 0 : bottomLeftDiameter;
bottomRightDiameter = bottomRightDiameter < 0 ? 0 : bottomRightDiameter;
float borderWidth = shapeView.getBorderWidthPx() / 2;
path.moveTo(rect.left + topLeftDiameter + borderWidth, rect.top + borderWidth);
path.lineTo(rect.right - topRightDiameter - borderWidth, rect.top + borderWidth);
path.quadTo(rect.right - borderWidth, rect.top + borderWidth, rect.right - borderWidth, rect.top + topRightDiameter + borderWidth);
path.lineTo(rect.right - borderWidth, rect.bottom - bottomRightDiameter - borderWidth);
path.quadTo(rect.right - borderWidth, rect.bottom - borderWidth, rect.right - bottomRightDiameter - borderWidth, rect.bottom - borderWidth);
path.lineTo(rect.left + bottomLeftDiameter + borderWidth, rect.bottom - borderWidth);
path.quadTo(rect.left + borderWidth, rect.bottom - borderWidth, rect.left + borderWidth, rect.bottom - bottomLeftDiameter - borderWidth);
path.lineTo(rect.left + borderWidth, rect.top + topLeftDiameter + borderWidth);
path.quadTo(rect.left + borderWidth, rect.top + borderWidth, rect.left + topLeftDiameter + borderWidth, rect.top + borderWidth);
path.close();
}
@Override
public void setTriangleBroadPath(Path path, int width, int height) {
float borderWidth = shapeView.getBorderWidthPx();
path.moveTo(0 + borderWidth, shapeView.getPercentLeft() * height + borderWidth / 2);
path.lineTo(shapeView.getPercentBottom() * width - borderWidth / 2, height - borderWidth);
path.lineTo(width - borderWidth, shapeView.getPercentBottom() * height + borderWidth / 2);
path.close();
}
/**
* 三角形
*/
@Override
public void setTrianglePath(Path path, int width, int height) {
float borderWidth = shapeView.getBorderWidthPx() / 2;
path.moveTo(0 + borderWidth, shapeView.getPercentLeft() * height + borderWidth);
path.lineTo(shapeView.getPercentBottom() * width - borderWidth, height - borderWidth);
path.lineTo(width - borderWidth, shapeView.getPercentRight() * height + borderWidth);
path.close();
}
/**
* 心形
*/
@Override
public void setHeartPath(Path path, int width, int height) {
int borderWidth = shapeView.getBorderWidthPx() / 2;
path.moveTo(0.5f * width, 0.16f * height + borderWidth);
path.cubicTo(0.15f * width + borderWidth, -shapeView.getRadian() * height + borderWidth, -0.4f * width + borderWidth, 0.45f * height + borderWidth, 0.5f * width, height - borderWidth);
// path.moveTo(0.5f * width, height);
path.cubicTo(width + 0.4f * width - borderWidth, 0.45f * height + borderWidth, width - 0.15f * width - borderWidth, -shapeView.getRadian() * height + borderWidth, 0.5f * width, 0.16f * height + borderWidth);
path.close();
}
/**
* 正多边形
*/
@Override
public void setPolygonPath(RectF rect, Path path) {
int sides = shapeView.getSides();
if (sides < 3) {
return;
}
float r = (rect.right - rect.left) / 2 - shapeView.getBorderWidthPx();
float mX = (rect.right + rect.left) / 2;
float my = (rect.top + rect.bottom) / 2;
for (int i = 0; i <= sides; i++) {
// - 0.5 : Turn 90 °
float alpha = Double.valueOf(((2f / sides) * i - shapeView.getTurn()) * Math.PI).floatValue();
float nextX = mX + Double.valueOf(r * Math.cos(alpha)).floatValue();
float nextY = my + Double.valueOf(r * Math.sin(alpha)).floatValue();
if (i == 0) {
path.moveTo(nextX, nextY);
} else {
path.lineTo(nextX, nextY);
}
}
path.close();
}
/**
* 星星
*/
@Override
public void setStarPath(Path path, float outR, float inR) {
int borderWidthPx = shapeView.getBorderWidthPx();
float radius = outR;
float radian = Utils.degree2Radian(36);// 36为五角星的角度
float radius_in = (float) (radius * Math.sin(radian / 2) / Math
.cos(radian)); // 中间五边形的半径
path.moveTo((float) (radius * Math.cos(radian / 2) + borderWidthPx), borderWidthPx);// 此点为多边形的起点
path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in
* Math.sin(radian) + borderWidthPx),
(float) (radius - radius * Math.sin(radian / 2) + borderWidthPx));
path.lineTo((float) (radius * Math.cos(radian / 2) * 2 + borderWidthPx),
(float) (radius - radius * Math.sin(radian / 2) + borderWidthPx));
path.lineTo((float) (radius * Math.cos(radian / 2) + radius_in
* Math.cos(radian / 2) + borderWidthPx),
(float) (radius + radius_in * Math.sin(radian / 2) + borderWidthPx));
path.lineTo(
(float) (radius * Math.cos(radian / 2) + radius
* Math.sin(radian) + borderWidthPx), (float) (radius + radius
* Math.cos(radian) + borderWidthPx));
path.lineTo((float) (radius * Math.cos(radian / 2) + borderWidthPx), radius + radius_in + borderWidthPx);
path.lineTo(
(float) (radius * Math.cos(radian / 2) - radius
* Math.sin(radian) + borderWidthPx), (float) (radius + radius
* Math.cos(radian) + borderWidthPx));
path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in
* Math.cos(radian / 2) + borderWidthPx),
(float) (radius + radius_in * Math.sin(radian / 2) + borderWidthPx));
path.lineTo(borderWidthPx, (float) (radius - radius * Math.sin(radian / 2) + borderWidthPx));
path.lineTo((float) (radius * Math.cos(radian / 2) - radius_in
* Math.sin(radian) + borderWidthPx),
(float) (radius - radius * Math.sin(radian / 2) + borderWidthPx));
path.close();
}
/**
* 对角线图形
*/
@Override
public void setDiagonalPath(Path path, int width, int height) {
final float perpendicularHeight = (float) (width * Math.tan(Math.toRadians(shapeView.getDiagonalAngle())));
final boolean isDirectionLeft = shapeView.getDiagonalDirection() == DIRECTION_LEFT;
int paddingLeft = shapeView.getPaddingLeft();
int paddingRight = shapeView.getPaddingRight();
int paddingTop = shapeView.getPaddingTop();
int paddingBottom = shapeView.getPaddingBottom();
switch (shapeView.getDiagonalPosition()) {
case POSITION_BOTTOM:
if (isDirectionLeft) {
path.moveTo(paddingLeft, paddingRight);
path.lineTo(width - paddingRight, paddingTop);
path.lineTo(width - paddingRight, height - perpendicularHeight - paddingBottom);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
} else {
path.moveTo(width - paddingRight, height - paddingBottom);
path.lineTo(paddingLeft, height - perpendicularHeight - paddingBottom);
path.lineTo(paddingLeft, paddingTop);
path.lineTo(width - paddingRight, paddingTop);
path.close();
}
break;
case POSITION_TOP:
if (isDirectionLeft) {
path.moveTo(width - paddingRight, height - paddingBottom);
path.lineTo(width - paddingRight, paddingTop + perpendicularHeight);
path.lineTo(paddingLeft, paddingTop);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
} else {
path.moveTo(width - paddingRight, height - paddingBottom);
path.lineTo(width - paddingRight, paddingTop);
path.lineTo(paddingLeft, paddingTop + perpendicularHeight);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
}
break;
case POSITION_RIGHT:
if (isDirectionLeft) {
path.moveTo(paddingLeft, paddingTop);
path.lineTo(width - paddingRight, paddingTop);
path.lineTo(width - paddingRight - perpendicularHeight, height - paddingBottom);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
} else {
path.moveTo(paddingLeft, paddingTop);
path.lineTo(width - paddingRight - perpendicularHeight, paddingTop);
path.lineTo(width - paddingRight, height - paddingBottom);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
}
break;
case POSITION_LEFT:
if (isDirectionLeft) {
path.moveTo(paddingLeft + perpendicularHeight, paddingTop);
path.lineTo(width - paddingRight, paddingTop);
path.lineTo(width - paddingRight, height - paddingBottom);
path.lineTo(paddingLeft, height - paddingBottom);
path.close();
} else {
path.moveTo(paddingLeft, paddingTop);
path.lineTo(width - paddingRight, paddingTop);
path.lineTo(width - paddingRight, height - paddingBottom);
path.lineTo(paddingLeft + perpendicularHeight, height - paddingBottom);
path.close();
}
break;
}
} <declare-styleable name="ShapeView">
<!--边框颜色-->
<attr name="shape_borderColor" format="color" />
<!--边框宽度-->
<attr name="shape_borderWidth" format="dimension" />
<!--虚线间隙-->
<attr name="shape_borderDashGap" format="dimension" />
<!--虚线宽度-->
<attr name="shape_borderDashWidth" format="dimension" />
<!--形状类型-->
<attr name="shape_type" format="enum">
<enum name="circle" value="0" />
<enum name="roundRect" value="1" />
<enum name="triangle" value="2" />
<enum name="heart" value="3" />
<enum name="polygon" value="4" />
<enum name="star" value="5" />
<enum name="diagonal" value="6" />
</attr>
<!--圆角矩形的四边弧度可分别配置或者直接使用shape_roundRect_radius同时配置-->
<attr name="shape_roundRect_bottomLeftRadius" format="dimension" />
<attr name="shape_roundRect_bottomRightRadius" format="dimension" />
<attr name="shape_roundRect_topLeftRadius" format="dimension" />
<attr name="shape_roundRect_topRightRadius" format="dimension" />
<attr name="shape_roundRect_radius" format="dimension" />
<!--圆角矩形点击颜色-->
<attr name="shape_roundRect_pressed_color" format="color" />
<!--圆角矩形默认颜色-->
<attr name="shape_roundRect_default_color" format="color" />
<!--三角形三个顶点的起始位置 0～1 float类型-->
<attr name="shape_triangle_percentLeft" format="float" />
<attr name="shape_triangle_percentBottom" format="float" />
<attr name="shape_triangle_percentRight" format="float" />
<!--心形弧度-->
<attr name="shape_heart_radian" format="float" />
<!--心形上面连接点位置 0～1 float类型-->
<attr name="shape_heart_YPercent" format="float"/>
<!--对边形形边数-->
<attr name="shape_polygon_side" format="integer" />
<!--对边形按照XY中心点旋转 0.5为90°-->
<attr name="shape_polygon_turn" format="float" />
<!-- <attr name="shape_star_turn" format="float" />-->
<!--对角线图形对角的起点 -->
<attr name="shape_diagonal_direction" format="enum">
<enum name="left" value="1" />
<enum name="right" value="2" />
</attr>
<!--对角线图形对角的那个位置-->
<attr name="shape_diagonal_position" format="enum">
<enum name="bottom" value="1" />
<enum name="top" value="2" />
<enum name="left" value="3" />
<enum name="right" value="4" />
</attr>
<attr name="shape_diagonal_angle" format="integer" />
</declare-styleable>
Copyright 2018 xwc
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.