Android代码处理视图圆角和色彩的工具类

视图圆角和色彩的工具类"/>

Android代码处理视图圆角和色彩的工具类

Android代码处理视图圆角和色彩的工具类

一直都用的.XML文件处理圆角与色彩或色彩渐变，觉得很不方便，后来发现了GradientDrawable这个类，就整了个工具类，用起来觉得挺方便

效果图：

下面贴代码：

public class DrawCorner {/** 默认绘制圆角函数，背景白色，半径20* */public static GradientDrawable drawCorner() {GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadius(20);drawable.setColor(Color.WHITE);return drawable;}/** 默认绘制圆角函数，背景白色* 参数：* radius：圆角半径* */public static GradientDrawable drawCorner(int radius) {GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadius(radius);drawable.setColor(Color.WHITE);return drawable;}/** 默认绘制圆角函数，背景白色* 参数：* radii：四个圆角半径，依次是左上x、左上y、右上x、右上y、右下x、右下y、左下x、左下y* */public static GradientDrawable drawCorner(float[] radii) {if (radii == null || radii.length != 8) {radii = new float[]{0, 0, 0, 0, 0, 0, 0, 0};}GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadii(radii);drawable.setColor(Color.WHITE);return drawable;}/** 默认绘制圆角函数* 参数：* radius：圆角半径* color：背景色* */public static GradientDrawable drawCorner(int radius, int color) {GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadius(radius);drawable.setColor(color);return drawable;}/** 默认绘制圆角函数* 参数：* radii：四个圆角半径，依次是左上x、左上y、右上x、右上y、右下x、右下y、左下x、左下y* color：背景色* */public static GradientDrawable drawCorner(float[] radii, int color) {if (radii == null || radii.length != 8) {radii = new float[]{0, 0, 0, 0, 0, 0, 0, 0};}GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadii(radii);drawable.setColor(color);return drawable;}/** 默认绘制圆角函数* 参数：* radius：圆角半径* colors：渐变背景色* */public static GradientDrawable drawCorner(int radius, int[] colors) {GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadius(radius);drawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);drawable.setColors(colors);return drawable;}/** 默认绘制圆角函数* 参数：* radii：四个圆角半径，依次是左上x、左上y、右上x、右上y、右下x、右下y、左下x、左下y* colors：渐变背景色* */public static GradientDrawable drawCorner(float[] radii, int[] colors) {if (radii == null || radii.length != 8) {radii = new float[]{0, 0, 0, 0, 0, 0, 0, 0};}GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadii(radii);drawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);drawable.setColors(colors);return drawable;}/** 默认绘制圆角函数* 参数：* radius：圆角半径* colors：渐变背景色* orientation：渐变类型（ 0：上到下，1：右上到左下，2：右到左，3：右下到左上，4：下到上，5：左下到右上，6：左到右，7：左上到右下 ）* */public static GradientDrawable drawCorner(int radius, int[] colors, int orientation) {GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadius(radius);drawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);switch (orientation) {case 0:drawable.setOrientation(GradientDrawable.Orientation.TOP_BOTTOM);break;case 1:drawable.setOrientation(GradientDrawable.Orientation.TR_BL);break;case 2:drawable.setOrientation(GradientDrawable.Orientation.RIGHT_LEFT);break;case 3:drawable.setOrientation(GradientDrawable.Orientation.BR_TL);break;case 4:drawable.setOrientation(GradientDrawable.Orientation.BOTTOM_TOP);break;case 5:drawable.setOrientation(GradientDrawable.Orientation.BL_TR);break;case 6:drawable.setOrientation(GradientDrawable.Orientation.LEFT_RIGHT);break;case 7:drawable.setOrientation(GradientDrawable.Orientation.TL_BR);break;}drawable.setColors(colors);return drawable;}/** 默认绘制圆角函数* 参数：* radii：四个圆角半径，依次是左上、右上、右下、左下* colors：渐变背景色* orientation：渐变类型（ 0：上到下，1：右上到左下，2：右到左，3：右下到左上，4：下到上，5：左下到右上，6：左到右，7：左上到右下 ）* */public static GradientDrawable drawCorner(float[] radii, int[] colors, int orientation) {if (radii == null || radii.length != 8) {radii = new float[]{0, 0, 0, 0, 0, 0, 0, 0};}GradientDrawable drawable = new GradientDrawable();drawable.setCornerRadii(radii);drawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);switch (orientation) {case 0:drawable.setOrientation(GradientDrawable.Orientation.TOP_BOTTOM);break;case 1:drawable.setOrientation(GradientDrawable.Orientation.TR_BL);break;case 2:drawable.setOrientation(GradientDrawable.Orientation.RIGHT_LEFT);break;case 3:drawable.setOrientation(GradientDrawable.Orientation.BR_TL);break;case 4:drawable.setOrientation(GradientDrawable.Orientation.BOTTOM_TOP);break;case 5:drawable.setOrientation(GradientDrawable.Orientation.BL_TR);break;case 6:drawable.setOrientation(GradientDrawable.Orientation.LEFT_RIGHT);break;case 7:drawable.setOrientation(GradientDrawable.Orientation.TL_BR);break;}drawable.setColors(colors);return drawable;}}

调用方式很简单，就是

View.setBackground(DrawCorner.drawCorner);

就行了

例如：

TextView textView = findViewById(R.id.test);
textView.setBackground(DrawCorner.drawCorner());

Github地址：