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Android处理视图圆角和色彩 Android处理视图圆角和色彩的工具类

优秀的哥斯拉 人气:0

Android代码处理视图圆角和色彩的工具类,供大家参考,具体内容如下

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

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