Android 更改 TimePicker 文本颜色

Change TimePicker text color

提问by Bono

I've been trying to change the textcolor of my timepicker. But I can't find where the parent style is located. I've tried both

我一直在尝试更改时间选择器的文本颜色。但是我找不到父样式的位置。我都试过了

<style name="MyTimePicker" parent="@android:style/Widget.Holo.TimePicker">
    <item name="android:textColor">@color/text</item>
</style>

and

和

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

My minSdkVersionis 15. My targetSdkVersionis 20. I have rebuilded and cleaned my project.
I think I've been through every similar question on SO and none of them really have provided a solution for me. The only answer that might work is using some sort of library, but I'm not a big fan of that solution. Is the path to the parent something different from what I'm using, because I'm pretty sure I should be able to access it somehow?

我minSdkVersion是 15 岁。我targetSdkVersion是 20 岁。我已经重建并清理了我的项目。
我想我已经解决了关于 SO 的所有类似问题，但没有一个真正为我提供解决方案。唯一可行的答案是使用某种库，但我不是该解决方案的忠实粉丝。父路径是否与我使用的路径不同，因为我很确定我应该能够以某种方式访问​​它？

Edit
This is how the theme is applied;

编辑
这是主题的应用方式；

<TimePicker
    style="@style/MyTimePicker"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/timePicker"
    android:layout_below="@+id/textView"
    android:layout_centerHorizontal="true" />

On a note this is the error I receive (forgot to place it before):

请注意，这是我收到的错误（之前忘记放置了）：

Error:Error retrieving parent for item: No resource found that matches the given name '@android:style/Widget.Holo.TimePicker'.

错误：检索项目的父项时出错：找不到与给定名称“@android:style/Widget.Holo.TimePicker”匹配的资源。

Edit 2A couple of the questions I've viewed to try to solve this:

编辑 2我查看过的几个问题试图解决这个问题：

1. How can I override TimePicker to change text color- I think this question gets as close to an answer, but I'm not entirely sure what I need to do? Do I need to import the android TimePicker style into my project?
2. https://stackoverflow.com/questions/24973586/set-textcolor-for-timepicker-in-customized-app-theme- No answer is given.
3. How can i change the textcolor of my timepicker and datepicker?- Tried the 0 votes answer, but it didn't work.
4. How to change the default color of DatePicker and TimePicker dialog in Android?- Again can't find the TimePicker in a similar way.
5. Android - How do I change the textColor in a TimePicker?- Again, can't find the actual TimePicker parent.

1. 如何覆盖 TimePicker 以更改文本颜色- 我认为这个问题接近答案，但我不完全确定我需要做什么？我需要将 android TimePicker 样式导入到我的项目中吗？
2. https://stackoverflow.com/questions/24973586/set-textcolor-for-timepicker-in-customized-app-theme- 没有给出答案。
3. 如何更改时间选择器和日期选择器的文本颜色？- 尝试了 0 票答案，但没有用。
4. 如何更改 Android 中 DatePicker 和 TimePicker 对话框的默认颜色？- 再次无法以类似的方式找到 TimePicker。
5. Android - 如何更改 TimePicker 中的 textColor？- 同样，找不到实际的 TimePicker 父级。

These are probably the best questions/answers to my problem, but none of them help me. It would be nice to get a definitive answer on this.

这些可能是对我的问题最好的问题/答案，但没有一个对我有帮助。如果能得到一个明确的答案，那就太好了。

回答by Bono

I have combined Paul Burke's Answerand Simon's Answerto succesfully edit the text colour of the TimePicker.

我结合了Paul Burke's Answer和Simon's Answer来成功编辑TimePicker.

Here's how it is accomplished:

这是它的实现方式：

TimePicker time_picker; //Instantiated in onCreate()
Resources system;

private void set_timepicker_text_colour(){
    system = Resources.getSystem();
    int hour_numberpicker_id = system.getIdentifier("hour", "id", "android");
    int minute_numberpicker_id = system.getIdentifier("minute", "id", "android");
    int ampm_numberpicker_id = system.getIdentifier("amPm", "id", "android");

    NumberPicker hour_numberpicker = (NumberPicker) time_picker.findViewById(hour_numberpicker_id);
    NumberPicker minute_numberpicker = (NumberPicker) time_picker.findViewById(minute_numberpicker_id);
    NumberPicker ampm_numberpicker = (NumberPicker) time_picker.findViewById(ampm_numberpicker_id);

    set_numberpicker_text_colour(hour_numberpicker);
    set_numberpicker_text_colour(minute_numberpicker);
    set_numberpicker_text_colour(ampm_numberpicker);
}

private void set_numberpicker_text_colour(NumberPicker number_picker){
    final int count = number_picker.getChildCount();
    final int color = getResources().getColor(R.color.text);

    for(int i = 0; i < count; i++){
        View child = number_picker.getChildAt(i);

        try{
            Field wheelpaint_field = number_picker.getClass().getDeclaredField("mSelectorWheelPaint");
            wheelpaint_field.setAccessible(true);

            ((Paint)wheelpaint_field.get(number_picker)).setColor(color);
            ((EditText)child).setTextColor(color);
            number_picker.invalidate();
        }
        catch(NoSuchFieldException e){
            Log.w("setNumberPickerTextColor", e);
        }
        catch(IllegalAccessException e){
            Log.w("setNumberPickerTextColor", e);
        }
        catch(IllegalArgumentException e){
            Log.w("setNumberPickerTextColor", e);
        }
    }
}

Please note that this answer might be outdated by now. I ran into this a while ago with something that might have been buggy (see my question for more details). Otherwise you should probably follow Vikram's answer.

请注意，这个答案现在可能已经过时了。不久前我遇到了可能有问题的东西（有关更多详细信息，请参阅我的问题）。否则，您可能应该遵循 Vikram 的回答。

回答by Vikram

Not sure why you would need to dive into Java Reflection API for this. Its a simple styling matter. The attribute that you need to override is: textColorPrimary.

不知道为什么您需要为此深入研究 Java 反射 API。这是一个简单的造型问题。您需要覆盖的属性是：textColorPrimary。

<style name="AppTheme" parent="@android:style/Theme.Holo.Light">
    ....
    <item name="android:textColorPrimary">#ff0000</item>
</style>

If you're using the TimePickerinside a Dialog, override android:textColorPrimaryin the dialog's theme.

如果您使用TimePicker内部 a Dialog，则覆盖android:textColorPrimary对话框的主题。

That's about it.

就是这样。

回答by Paul Burke

A TimePickeris really just two NumberPickers. Looking into the Widget.NumberPickerstyle and layout, you'll find the it uses

ATimePicker实际上只是两个NumberPickers。查看Widget.NumberPicker样式和布局，您会发现它使用的

@style/TextAppearance.Large.Inverse.NumberPickerInputText

Unfortunately, TextAppearance.Large.Inverse.NumberPickerInputTextdoesn't use one of the attributes that you can set in your theme. So you have two options:

不幸的是，TextAppearance.Large.Inverse.NumberPickerInputText不使用您可以在主题中设置的属性之一。所以你有两个选择：

1. Copy the necessary classes to make your own version of NumberPickerand TimePicker. (You might be able to extract something from libraries like HoloEverywhere)

2. Use hacks.

1. 复制必要的类以制作您自己的NumberPicker和版本TimePicker。（你也许可以从像HoloEverywhere这样的库中提取一些东西）

2. 使用黑客。

If you want to go the second route, you can do this:

如果你想走第二条路线，你可以这样做：

private int mNumberPickerInputId = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Resources system = Resources.getSystem();

    // This is the internal id of the EditText used in NumberPicker (hack)
    mNumberPickerInputId = 
        system.getIdentifier("numberpicker_input", "id", "android");

    // just used for full example, use your TimePicker
    TimePicker timePicker = new TimePicker(this);
    setContentView(timePicker);

    final int hourSpinnerId = 
        system.getIdentifier("hour", "id", "android");
    View hourSpinner = timePicker.findViewById(hourSpinnerId);
    if (hourSpinner != null) {
        setNumberPickerTextColor(hourSpinner, Color.BLUE);
    }

    final int minSpinnerId = 
        system.getIdentifier("minute", "id", "android");
    View minSpinner = timePicker.findViewById(minSpinnerId);
    if (minSpinner != null) {
        setNumberPickerTextColor(minSpinner, Color.BLUE);
    }

    final int amPmSpinnerId = 
        system.getIdentifier("amPm", "id", "android");
    View amPmSpinner = timePicker.findViewById(amPmSpinnerId);
    if (amPmSpinner != null) {
        setNumberPickerTextColor(amPmSpinner, Color.BLUE);
    }
}

private void setNumberPickerTextColor(View spinner, int color) {
    TextView input = (TextView) spinner.findViewById(mNumberPickerInputId);
    input.setTextColor(color);
}

EDIT

编辑

Upon further investigation, this hack doesn't really work well. It won't allow you to change the color of the NumberPickerabove/below values. The color also resets after the use interacts with it. It seems that your only option will be to create your own copies of the necessary classes (option #1 above).

经过进一步调查，这个 hack 并不能很好地工作。它不允许您更改NumberPicker以上/以下值的颜色。使用后颜色也会重置。似乎您唯一的选择是创建您自己的必要类的副本（上面的选项 #1）。

回答by Muhaiminur Rahman

@Vikram is right This is so simple.You can try this way

@Vikram 是对的 这太简单了 你可以试试这个

<style name="abirStyle" parent="@android:style/Theme.Holo.Light.Dialog.NoActionBar">
    <item name="android:textColor">@color/colorPrimary</item>
    <item name="android:background">@null</item>
    <item name="android:textColorPrimary">@color/colorPrimary</item>
</style>

回答by mkruglikov

You can try to set android:textColorPrimaryInverseand android:textColorSecondaryInverse. That should do the job without using Reflection.

您可以尝试设置android:textColorPrimaryInverse和android:textColorSecondaryInverse。这应该可以在不使用反射的情况下完成工作。

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:textColorPrimaryInverse">@android:color/black</item>
    <item name="android:textColorSecondaryInverse">@color/colorLightGrey</item>
</style>

回答by Manohar Reddy

Adding to Vikramanswer , Set the theme to timePicker do not set it as style

添加到Vikram答案，将主题设置为 timePicker 不要将其设置为样式

in styles.xml

在 styles.xml

 <style name="timePickerOrange">
    <item name="android:textColorPrimary">@color/orange</item>
    <item name="android:textColor">@color/orange</item>
</style>

and for timePicker

和时间选择器

<TimePicker
    android:theme="@style/timePickerOrange"
    android:id="@+id/timePicker_defaultTime"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fontFamily="@font/hero_regular"
    android:timePickerMode="spinner"
    app:fontFamily="@font/hero_regular" />