Android 分隔线颜色 DatePicker 对话框 [英] Android divider color DatePicker dialog

问题描述

我正在尝试在对话框中更改 DatePicker 的蓝色分隔线的颜色.这只是一个带有 DatePicker 和 ButtonBar 的普通 DialogFragment.

I'm trying to change color of the blue dividers for a DatePicker in a dialog. This is just a normal DialogFragment with a DatePicker and a ButtonBar.

有谁知道要更改这些分隔符，或者是否有可能不用自定义分隔符替换整个 DatePicker?

Does anyone know to change these dividers, or if it's even possible without replacing the entire DatePicker with a custom one?

迷你咆哮

现在我看到太多答案暗示以下代码:

Now I've seen too many answers suggesting the following code:

<style name="datePickerTheme" parent="@android:style/Widget.DeviceDefault.DatePicker">
    <item name="android:divider">**your @drawable/ or @color/ here**</item>
</style>

这根本行不通.你们在建议这个代码之前尝试过这个吗?它应该完美运行，但它似乎不适用于 DatePicker.

Which simply does not work. Have you guys tried this before suggesting this code? It should work perfectly, but it does not seem to work with the DatePicker.

推荐答案

以下方法对我有用.这为所有字段设置分隔线颜色(也适用于 am/pm)

The following approach worked for me.This sets divider colours for all fields (also for am/pm)

 private void applyStyLing(TimePickerDialog timePickerDialog){
    Resources system = Resources.getSystem();
    int hourNumberPickerId = system.getIdentifier("hour", "id", "android");
    int minuteNumberPickerId = system.getIdentifier("minute", "id", "android");
    int ampmNumberPickerId = system.getIdentifier("amPm", "id", "android");

    NumberPicker hourNumberPicker = (NumberPicker) timePickerDialog.findViewById(hourNumberPickerId);
    NumberPicker minuteNumberPicker = (NumberPicker) timePickerDialog.findViewById(minuteNumberPickerId);
    NumberPicker ampmNumberPicker = (NumberPicker) timePickerDialog.findViewById(ampmNumberPickerId);

   setNumberPickerDividerColour(hourNumberPicker);
   setNumberPickerDividerColour(minuteNumberPicker);
   setNumberPickerDividerColour(ampmNumberPicker);
}

private void setNumberPickerDividerColour(NumberPicker number_picker){
    final int count = number_picker.getChildCount();

    for(int i = 0; i < count; i++){

        try{
            Field dividerField = number_picker.getClass().getDeclaredField("mSelectionDivider");
            dividerField.setAccessible(true);
                ColorDrawable colorDrawable = new ColorDrawable(mContext.getResources().getColor(R.color
                        .interactive_color));
            dividerField.set(number_picker,colorDrawable);

            number_picker.invalidate();
        }
        catch(NoSuchFieldException e){
            Log.w("setNumberPickerTxtClr", e);
        }
        catch(IllegalAccessException e){
            Log.w("setNumberPickerTxtClr", e);
        }
        catch(IllegalArgumentException e){
            Log.w("setNumberPickerTxtClr", e);
        }
    }
}

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