我有很多警报对话框在我的应用程序。这是一个默认的布局,但我添加了积极和消极的按钮对话框。所以按钮得到Android 5的默认文本颜色(绿色)。我试图改变它,但没有成功。知道怎么改变文字的颜色吗?

自定义对话框:

public class MyCustomDialog extends AlertDialog.Builder {

    public MyCustomDialog(Context context,String title,String message) {
        super(context);

        LayoutInflater inflater = (LayoutInflater) context.getSystemService( Context.LAYOUT_INFLATER_SERVICE );
        View viewDialog = inflater.inflate(R.layout.dialog_simple, null, false);

        TextView titleTextView = (TextView)viewDialog.findViewById(R.id.title);
        titleTextView.setText(title);
        TextView messageTextView = (TextView)viewDialog.findViewById(R.id.message);
        messageTextView.setText(message);

        this.setCancelable(false);

        this.setView(viewDialog);

    } }

创建对话框:

MyCustomDialog builder = new MyCustomDialog(getActivity(), "Try Again", errorMessage);
builder.setNegativeButton("OK", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            ...
                        }
}).show();

那个negativeButton是一个默认的对话框按钮,并采用Android 5 Lollipop的默认绿色。

非常感谢


当前回答

快速简单的方法: 更改res/values/colors.xml中的colorAccent颜色,颜色以十六进制表示,例如#010613为黑色。 拜拜

其他回答

你可以这样做:简单的方法

// Initializing a new alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(R.string.message);
builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        doAction();
    }
});
builder.setNegativeButton(R.string.cancel, null);

// Create the alert dialog and change Buttons colour
AlertDialog dialog = builder.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface arg0) {
        dialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(getResources().getColor(R.color.red));
        dialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(getResources().getColor(R.color.blue));
        //dialog.getButton(AlertDialog.BUTTON_NEUTRAL).setTextColor(getResources().getColor(R.color.black));
    }
});
dialog.show();

In your app's theme/style, add the following lines: <item name="android:buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item> <item name="android:buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item> <item name="android:buttonBarNeutralButtonStyle">@style/NeutralButtonStyle</item> Then add the following styles: <style name="NegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog"> <item name="android:textColor">@color/red</item> </style> <style name="PositiveButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog"> <item name="android:textColor">@color/red</item> </style> <style name="NeutralButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog"> <item name="android:textColor">#00f</item> </style>

使用此方法无需在AlertDialog构建器中设置主题。

<style name="AlertDialogCustom" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="android:colorPrimary">#00397F</item>
    <item name="android:textColorPrimary">#22397F</item>
    <item name="android:colorAccent">#00397F</item>
    <item name="colorPrimaryDark">#22397F</item>
</style>

按钮和其他文本的颜色也可以使用appcompat更改:

在学习的同时又看了很多造型。要知道的一件重要的事情是,代码比样式更高级。按键的样式并不适用,所以我感谢Ramakrishna Joshi在这篇文章中的回答。我在其中添加了白天和夜晚的主题:

private fun AlertDialog.dlgTextColor() {
    val currentNightMode = (resources.configuration.uiMode
            and Configuration.UI_MODE_NIGHT_MASK)
    when (currentNightMode) {
        Configuration.UI_MODE_NIGHT_YES -> {
            this.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(ContextCompat.getColor(context, R.color.yellow_accent))
            this.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(ContextCompat.getColor(context, R.color.yellow_accent))
        }
        Configuration.UI_MODE_NIGHT_NO -> {
            this.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(ContextCompat.getColor(context, R.color.blue_accent))
            this.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(ContextCompat.getColor(context, R.color.blue_accent))
        }
    }
}

对它的调用是:

.dlgTextColor()

在对话构建器中,对该方法的调用确实跟在.show之后。

这是一个自定义主题,以改变AlertDialog按钮的textColor。 它在我的设备上工作-三星ga70 -安卓11

<style name="AlertDialogCustom" parent="Theme.AppCompat.Light.Dialog.Alert">
    <!--Support for other devices, I think so-->
        <item name="android:textColor">@color/yourcolor</item>
        <item name="colorButtonNormal">@color/yourcolor</item>
        <item name="colorAccent">@color/yourcolor</item>
    <!--only this code works on my device-->
        <item name="buttonBarButtonStyle">@style/MyButtonStyle</item>
    </style>

    <!--only this code works on my device-->
    <style name="MyButtonStyle" parent="Widget.AppCompat.Button.Borderless">
        <item name="android:textColor">@color/yourcolor</item>
    </style>