How can I override TimePicker to change text color

问题

My view has a white background, and it has to stay that way. I have a TimePicker on that white background.Everything is woking fine with android 2.3.3 but android 4.0.3 has a new timePicker style. The numbers have a very bright color. It is very hard to see them on the white background, and I didn't find a direct way to change the textColor. I don't want to change the background because it would look not so good.

Is there any way to override this and set the color of the numbers to black?

Sincerly, Wolfen

回答1:

Take a look at the android source for styles.xml

https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/styles.xml

You then set a style on your activity/timepicker it looks like you could do something like this:

<style name="MyTimePicker" parent="@android:style/Widget.TimePicker">
    <item name="android:textColor">#000000</item>
</style>

or maybe (3.0 and above only)

<style name="MyHoloTimePicker" parent="@android:style/Widget.Holo.TimePicker">
    <item name="android:textColor">#000000</item>
</style>

Then your xml would be:

<TimePicker
 style="@style/MyHoloTimePicker"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent" />

回答2:

use this function

public static boolean setNumberPickerTextColor(NumberPicker numberPicker, int color) {
final int count = numberPicker.getChildCount();
for (int i = 0; i < count; i++) {
  View child = numberPicker.getChildAt(i);
  if (child instanceof EditText) {
    try {
      Field selectorWheelPaintField =
          numberPicker.getClass().getDeclaredField("mSelectorWheelPaint");
      selectorWheelPaintField.setAccessible(true);
      ((Paint) selectorWheelPaintField.get(numberPicker)).setColor(color);
      ((EditText) child).setTextColor(color);
      numberPicker.invalidate();
      return true;
    } catch (NoSuchFieldException e) {
      Log.w("setNumberPickerTextColor", e);
    } catch (IllegalAccessException e) {
      Log.w("setNumberPickerTextColor", e);
    } catch (IllegalArgumentException e) {
      Log.w("setNumberPickerTextColor", e);
    }
  }
}
return false;

}

来源：https://stackoverflow.com/questions/10969513/how-can-i-override-timepicker-to-change-text-color