Android动态生成按钮样式 _android

【Android动态生成按钮样式】弱龄寄事外，委怀在琴书。这篇文章主要讲述Android动态生成按钮样式相关的知识，希望能为你提供帮助。
动态生成按钮样式使用：

int borderColor = Color.parseColor("#2E3135"); int bgColor = Color.parseColor("#00FF00"); // 设置View背景样式，有边框宽度、边框颜色、圆角度数、背景颜色。 GradientDrawable shape = DrawableUtils.createShape(1, 4, borderColor, bgColor); btn1.setBackground(shape); int textNormalColor = Color.parseColor("#2E3135"); int textPressColor = Color.parseColor("#FF0000"); int textFocusColor = Color.parseColor("#00FF00"); int textEnableColor = Color.parseColor("#0000FF"); // 设置文本点击样式切换 ColorStateList colorStateList = DrawableUtils.createColorStateList(textNormalColor, textPressColor, textFocusColor, textEnableColor); btn2.setTextColor(colorStateList); /* android:focusableInTouchMode="true" 控件默认获取焦点 */int color1 = Color.parseColor("#FF0000"); int color2 = Color.parseColor("#00FF00"); // 设置View点击样式切换 GradientDrawable unSelected = DrawableUtils.createShape(1, 4, color1, color2); GradientDrawable selected = DrawableUtils.createShape(1, 4, color2, color1); StateListDrawable stateListDrawable = DrawableUtils.createStateListDrawable(unSelected, selected); btn3.setBackground(stateListDrawable);

工具类：

public class DrawableUtils {/** * 创建一个shape * * @param strokeWidth 边框宽度(px) * @param roundRadius 圆角半径(px) * @param strokeColor 边框颜色 * @param fillColor内部填充颜色 * @return GradientDrawable */ public static GradientDrawable createShape(int strokeWidth, int roundRadius, int strokeColor, int fillColor) { GradientDrawable gd = new GradientDrawable(); gd.setColor(fillColor); gd.setCornerRadius(roundRadius); gd.setStroke(strokeWidth, strokeColor); return gd; }/** * 创建按钮文字点击样式 * * @param normal正常样式 * @param pressed 按下样式 * @param focused 焦点样式 * @param unable不可用样式 * @return ColorStateList */ public static ColorStateList createColorStateList(int normal, int pressed, int focused, int unable) { int[] colors = new int[]{pressed, focused, normal, focused, unable, normal}; int[][] states = new int[6][]; states[0] = new int[]{android.R.attr.state_pressed, android.R.attr.state_enabled}; states[1] = new int[]{android.R.attr.state_enabled, android.R.attr.state_focused}; states[2] = new int[]{android.R.attr.state_enabled}; states[3] = new int[]{android.R.attr.state_focused}; states[4] = new int[]{android.R.attr.state_window_focused}; states[5] = new int[]{}; return new ColorStateList(states, colors); }/** * 创建按钮点击样式 * * @param unSelected 未点击样式 * @param selected 点击样式 * @return StateListDrawable */ public static StateListDrawable createStateListDrawable(GradientDrawable unSelected, GradientDrawable selected) { StateListDrawable drawable = new StateListDrawable(); drawable.addState(new int[]{android.R.attr.state_pressed}, selected); drawable.addState(new int[]{-android.R.attr.state_pressed}, unSelected); return drawable; }}