如何在 Android 中更改警报对话框的文本行

Posted 2023-04-18

【中文标题】如何在 Android 中更改警报对话框的文本行

【英文标题】：How to change the textline of an alertdialog in Android

【发布时间】：2020-09-13 08:57:56

【问题描述】：

有谁知道你如何用 textinput 更改文本输入行和 AlertDialog 的光标（从绿色变为粉红色）。 1]：https://i.stack.imgur.com/1apfI.png 我在我的课堂上这样实现它：

AlertDialog.Builder builder = new AlertDialog.Builder(this,R.style.AlertDialogTheme);
        builder.setTitle("Artikel Toevoegen");
        final EditText input = new EditText(this);
        input.setSingleLine();
        builder.setView(input);
        builder.setPositiveButton("Toevoegen", new DialogInterface.OnClickListener() 
            @Override
            public void onClick(DialogInterface dialog, int which) 
                if(input.length() != 0) 
                    shoppingList.add((input.getText().toString()));
                    lv.setAdapter(adapter);
                
                else 
                    Toast toast = Toast.makeText(getApplicationContext(),"Voer een artikel in", Toast.LENGTH_LONG);
                    toast.setGravity(Gravity.CENTER, 0, 570);
                    toast.show();
                    artikelToevoegen();
                
            
        );

        builder.setNegativeButton("Annuleer", new DialogInterface.OnClickListener() 
            @Override
            public void onClick(DialogInterface dialog, int which) 
                dialog.cancel();
            
        );
        AlertDialog dialog = builder.create();
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        WindowManager.LayoutParams wmlp = dialog.getWindow().getAttributes();

        wmlp.gravity = Gravity.TOP | Gravity.LEFT;
        wmlp.x = 40;   //x position
        wmlp.y = 100;   //y position

        dialog.show();

这就是 xml 样式的样子：

<style name="AlertDialogTheme" parent="ThemeOverlay.AppCompat.Dialog.Alert">
        android:textCursorDrawable="@drawable/pink_cursor"
        android:backgroundTint="#D70F64"
        <item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
        <item name="buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
    </style>

    <style name="NegativeButtonStyle" parent="Widget.AppCompat.Button.ButtonBar.AlertDialog">
        <item name="android:textColor">#d70f64</item>
    </style>

    <style name="PositiveButtonStyle" parent="Widget.AppCompat.Button.ButtonBar.AlertDialog">
        <item name="android:textColor">#d70f64</item>
    </style>

【参考方案1】：

你可以改变颜色，

input.getBackground().setColorFilter(getResources().getColor(R.color.pink_cursor), PorterDuff.Mode.SRC_ATOP);

或

input.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.pink_cursor)));