1.Android设置TimePicker样式和字体颜色

Android默认的TimePicker有两种，6.0为Dialog样式，6.0之前为Spinner样式

设置TimePicker选择器风格

一种是

android:timePickerMode="clock"

image.png

另一种是

android:timePickerMode="spinner"

[图片上传中...(image.png-7ac7c0-1593766325814-0)]

image.png

TimePicker的显示规模大小设置

数字越大 显示越大

android:scaleX="2"

android:scaleY="2"

TimePicker的数据回调

mTimepicker = (TimePicker) inflate.findViewById(R.id.timepicker);

mTimepicker.setDescendantFocusability(TimePicker.FOCUS_BLOCK_DESCENDANTS); //设置点击事件不弹键盘

mTimepicker.setIs24HourView(true); //设置时间显示为24小时

mTimepicker.setHour(8); //设置当前小时

mTimepicker.setMinute(10); //设置当前分(0-59)

mTimepicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() { //获取当前选择的时间

@Override

public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {

}

});

利用反射修改一些选择器的字体效果与背景颜色

需要用到反射的方法了，比如更改分割线的样式，设置起始截止时间等：

首先我们要通过反射获取TimePicker源码里hour和minute的id：

Resources systemResources = Resources.getSystem();

int hourNumberPickerId = systemResources.getIdentifier("hour", "id", "android");

int minuteNumberPickerId = systemResources.getIdentifier("minute", "id", "android");

然后用我们定义的TimePicker来获取这个id并转换成hour和minute对应的NumberPicker:

NumberPicker hourNumberPicker = (NumberPicker) mTimepicker.findViewById(hourNumberPickerId);

NumberPicker minuteNumberPicker = (NumberPicker) mTimepicker.findViewById(minuteNumberPickerId);

通过获取到的hourNumberPicker和minuteNumberPicker我们可以先进行TimePicker的时间限制：

hourNumberPicker.setMinValue(8); //设置最小hour

hourNumberPicker.setMaxValue(12); //设置最大hour

minuteNumberPicker .setMinValue(0); //设置最小minute

minuteNumberPicker .setMaxValue(30); //设置最大minute

修改滚动条背景颜色

hourNumberPicker.setBackgroundColor(getResources().getColor(R.color.colorBlue));// 修改背景颜色

image.png

隐藏冒号

用最暴力的方式隐藏滚动条的冒号，就是直接找ChildAt

ViewGroup view = (ViewGroup) mTimepicker.getChildAt(0);

ViewGroup view2 = (ViewGroup) view.getChildAt(1);

view2.getChildAt(1).setVisibility(View.GONE);

禁止键盘输入

mTimePicker.setDescendantFocusability(TimePicker.FOCUS_BLOCK_DESCENDANTS);

TimePicker分割线的颜色和高度

private void setNumberPickerDivider(NumberPicker numberPicker) {

NumberPicker picker = numberPicker;

Field[] pickerFields = NumberPicker.class.getDeclaredFields();

for (Field pf : pickerFields) {

if (pf.getName().equals("mSelectionDivider")) { //设置颜色

pf.setAccessible(true);

ColorDrawable colorDrawable = new ColorDrawable(

ContextCompat.getColor(this, R.color.colortime)); //选择自己喜欢的颜色

try {

pf.set(numberPicker, colorDrawable);

} catch (IllegalAccessException e) {

e.printStackTrace();

}

}

if (pf.getName().equals("mSelectionDividerHeight")) { //设置高度

pf.setAccessible(true);

try {

int result = 3; //要设置的高度

pf.set(picker, result);

} catch (Exception e) {

e.printStackTrace();

}

break;

}

picker.invalidate();

}

}