Android 中NumberPicker,DatePicker与DatePickerDialog中分割颜色的修改实例代码
前言: 开发中,为了应用整体美观,需要保持控件的色调和主题色保持一致,
例如:NumberPicker、DatePicker和DatePickerDialog的分割线颜色
一、NumberPicker的分割线颜色
我把对NumberPicker分割线颜色的方法写在一个工具类中,便于全局调用,代码如下:
public static void setNumberPickerDividerColor(Context context, NumberPicker numberPicker) {
NumberPicker picker = numberPicker;
Field[] pickerFields = NumberPicker.class.getDeclaredFields();
for (Field pf : pickerFields) {
if (pf.getName().equals("mSelectionDivider")) {
pf.setAccessible(true);
try {
//设置分割线的颜色值
pf.set(picker, new ColorDrawable(context.getResources().getColor(R.color.theme_pink)));
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (Resources.NotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
break;
}
}
}
二、DatePicker的分割线颜色
查看DataPicker的源码可以看到,DatePacker也是NumberPicker实现的,所以主要思想,还是修改NumberPicker分割线的颜色,代码如下:
public static void setDatePickerDividerColor(Context context, DatePicker datePicker){
// 获取 mSpinners
LinearLayout llFirst = (LinearLayout) datePicker.getChildAt(0);
// 获取 NumberPicker
LinearLayout mSpinners = (LinearLayout) llFirst.getChildAt(0);
for (int i = 0; i < mSpinners.getChildCount(); i++) {
NumberPicker picker = (NumberPicker) mSpinners.getChildAt(i);
Field[] pickerFields = NumberPicker.class.getDeclaredFields();
for (Field pf : pickerFields) {
if (pf.getName().equals("mSelectionDivider")) {
pf.setAccessible(true);
try {
pf.set(picker, new ColorDrawable(context.getResources().getColor(R.color.theme_pink)));
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (Resources.NotFoundException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
break;
}
}
}
}
二、DatePickerDialog的分割线颜色
实现思路:拿到Dialog中DatePicker就可以改变分割先的颜色,主要代码如下:
DatePickerDialog datePickerDialog =
new DatePickerDialog(mContext, 0, listener, year, month, day);
datePickerDialog.setTitle("选择年月");
datePickerDialog.show();
DatePicker datePicker = datePickerDialog.getDatePickerStart(); //获取DatePicker
CommonUtil.setDatePickerDividerColor(mContext, datePicker); //设置分割线颜色
Button commitBtn = datePickerDialog.getButton(DialogInterface.BUTTON_POSITIVE); //确认按钮
commitBtn.setTextColor(Color.parseColor("#e8615e"));
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