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更改datepickerDialog中某个按钮的文本颜色?

android-theme android java

Dishonered · 技术社区 · 7 年前

我有一个日期选择对话框,主题是

<style name="DatePickerTheme" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">@color/that_blue_color</item>
</style>

我做这个自定义主题是因为我想更改日期选择对话框的背景色。我设法改变了背景色,选取圆和按钮的文本颜色。但我现在想更改 CANCEL 按钮并保留文本颜色 OK 按钮不变。我该怎么做?

5 回复 | 直到 6 年前

ADM 7 年前

你可以得到 Button 从 Dialog 并使用修改IT属性 getButton() .请参见下面的示例。打电话后拿到按钮 .show() 否则它会给 null .

 final Calendar c = Calendar.getInstance();
            int mYear = c.get(Calendar.YEAR);
            int  mMonth = c.get(Calendar.MONTH);
            int mDay = c.get(Calendar.DAY_OF_MONTH);
            DatePickerDialog datePickerDialog = new DatePickerDialog(ConstarintsActivity.this,
                    (view, year, monthOfYear, dayOfMonth) -> {


                    }, mYear, mMonth, mDay);
            datePickerDialog.show();
            datePickerDialog.getButton(DatePickerDialog.BUTTON_NEGATIVE).setTextColor(Color.GREEN);

Dishonered 7 年前

我是这样做的

 datePickerDialog.show();
 datePickerDialog.
 getButton(DatePickerDialog.BUTTON_NEGATIVE).setTextColor(Color.G
 RAY);

Manish Karena 7 年前

只需改变风格 CANCEL 按钮并将该样式放入AlertDialog的父主题,如下所示:

<style name="DatePickerTheme" parent="Theme.AppCompat.Light.Dialog">
    <item name="colorAccent">@color/that_blue_color</item>
    <item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
</style>

<style name="NegativeButtonStyle" parent="Widget.AppCompat.Button.ButtonBar.AlertDialog">
        <item name="android:textColor">#f00</item>
</style>

Shehan Rangana 6 年前

您可以为 CANCEL 按钮如下。

<style name="DatePickerTheme" parent="Theme.MaterialComponents.Light.Dialog.Alert">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:buttonBarNegativeButtonStyle">@style/DatePickerTheme.ButtonBarNegativeButtonStyle</item>
</style>

<style name="DatePickerTheme.ButtonBarNegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
    <item name="android:textColor">@android:color/holo_red_light</item>
</style>

Viral Patel 7 年前

<style name="DatePickerTheme" parent="Theme.AppCompat.Light">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/that_blue_color</item>
</style>

在androidmanifest.xml文件中,将这一行添加到微粒活动android:theme=“@style/datepickerTheme”。

或

在XML文件中尝试此操作:

<Button
    android:id="@+id/btn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Set Date"
    />

现在在Java文件中:

btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Initialize a new date picker dialog fragment
                DialogFragment dFragment = new DatePickerFragment();

                // Show the date picker dialog fragment
                dFragment.show(getFragmentManager(), "Date Picker");
            }
        });

public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState){
            final Calendar calendar = Calendar.getInstance();
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);
            int day = calendar.get(Calendar.DAY_OF_MONTH);

            /*
                Create a DatePickerDialog using Theme.

                    DatePickerDialog(Context context, int theme, DatePickerDialog.OnDateSetListener listener,
                        int year, int monthOfYear, int dayOfMonth)
             */

            // DatePickerDialog THEME_DEVICE_DEFAULT_LIGHT
            DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                    AlertDialog.THEME_DEVICE_DEFAULT_LIGHT,this,year,month,day);
       // Return the DatePickerDialog
            return  dpd;
        }

        public void onDateSet(DatePicker view, int year, int month, int day){
            // Do something with the chosen date
        }

我希望它能帮助你….