Question

AlertDialog

如何更改AlertDialog中的textcolor？

<item name="android:textColor">@color/black_text</item>

仅更改标题颜色。

ad = new AlertDialog.Builder((new ContextThemeWrapper(context, R.style.DialogTheme)));
            ad.setTitle(R.string.my_activ_remove_title_dialog);

            ad.setPositiveButton(R.string.my_activ_remove_dialog, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int arg1) {
                    content.remove(position);
                    notifyItemRemoved(position);
                    notifyItemRangeChanged(position, content.size());
                }

            });
            ad.setNegativeButton(R.string.my_activ_cancel_remove_dialog, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int arg1) {

                }
            });

Alerd Dialog v2

Answer 1

仅用于更改字体颜色，请尝试以下操作：

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
    builder.setPositiveButton(Html.fromHtml("<font color='#FF7F27'>Yes</font>"), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int arg1) {
            Log.e(LOG_TAG, "Yes");
        }
    });
    builder.setNegativeButton(Html.fromHtml("<font color='#FF7F27'>No</font>"), new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int arg1) {
            Log.e(LOG_TAG, "No");
        }
    });
    builder.create();
    builder.show();

结果：

要更改字体颜色和按钮背景颜色，请尝试以下操作：

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
    builder.setCancelable(false);
    builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
        }
    });
    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
        }
    });
    AlertDialog alert = builder.create();
    alert.show();
    Button nbutton = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
    //Set negative button background
    nbutton.setBackgroundColor(Color.MAGENTA);
    //Set negative button text color
    nbutton.setTextColor(Color.YELLOW);
    Button pbutton = alert.getButton(DialogInterface.BUTTON_POSITIVE);
    //Set positive button background
    pbutton.setBackgroundColor(Color.YELLOW);
    //Set positive button text color
    pbutton.setTextColor(Color.MAGENTA);

结果：

如果您想更改分隔线颜色，请尝试以下操作：

        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Test Title");
        builder.setMessage(Html.fromHtml("<font color='#FF7F27'>This is a test</font>"));
        builder.setCancelable(false);
        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            }
        });
        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            }
        });
        AlertDialog dialog = builder.create();
        dialog.show();
        try {
            Resources resources = dialog.getContext().getResources();
            int alertTitleId = resources.getIdentifier("alertTitle", "id", "android");
            TextView alertTitle = (TextView) dialog.getWindow().getDecorView().findViewById(alertTitleId);
            alertTitle.setTextColor(Color.MAGENTA); // change title text color

            int titleDividerId = resources.getIdentifier("titleDivider", "id", "android");
            View titleDivider = dialog.getWindow().getDecorView().findViewById(titleDividerId);
            titleDivider.setBackgroundColor(Color.YELLOW); // change divider color
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        Button nbutton = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
        //Set negative button background
        nbutton.setBackgroundColor(Color.MAGENTA);
        //Set negative button text color
        nbutton.setTextColor(Color.YELLOW);
        Button pbutton = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
        //Set positive button background
        pbutton.setBackgroundColor(Color.YELLOW);
        //Set positive button text color
        pbutton.setTextColor(Color.MAGENTA);

这是我的示例代码，但如果您想更改分隔符颜色，请考虑代码的一部分以＆＃34; int titleDividerId＆＃34;开始。

结果：

如果你想自定义AlertDialog很多。例如，添加一些带有自定义背景颜色的复选框，请使用以下方法：

AlertDialog.Builder alert = new AlertDialog.Builder(this);
        LinearLayout mainLayout       = new LinearLayout(this);
        mainLayout.setOrientation(LinearLayout.VERTICAL);

        LinearLayout layout1       = new LinearLayout(this);
        layout1.setOrientation(LinearLayout.HORIZONTAL);
        CheckBox cb1 = new CheckBox(getApplicationContext());
        cb1.setText("Easy");
        layout1.addView(cb1);
        layout1.setBackgroundColor(Color.BLUE);
        layout1.setMinimumHeight(50);

        LinearLayout layout2       = new LinearLayout(this);
        layout2.setOrientation(LinearLayout.HORIZONTAL);
        layout2.addView(new TextView(this));
        CheckBox cb2 = new CheckBox(getApplicationContext());
        cb2.setText("Normal");
        layout2.addView(cb2);
        layout2.setBackgroundColor(Color.CYAN);
        layout2.setMinimumHeight(50);

        LinearLayout layout3       = new LinearLayout(this);
        layout3.setOrientation(LinearLayout.HORIZONTAL);
        CheckBox cb3 = new CheckBox(getApplicationContext());
        cb3.setText("Hard");
        layout3.addView(cb3);
        layout3.setBackgroundColor(Color.GREEN);
        layout3.setMinimumHeight(50);

        mainLayout.addView(layout1);
        mainLayout.addView(layout2);
        mainLayout.addView(layout3);
        alert.setTitle("Custom alert demo");
        alert.setView(mainLayout);
        alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });
        alert.setPositiveButton("Done", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getBaseContext(), "done", Toast.LENGTH_SHORT).show();
            }
        });

        alert.show();

结果：

首先，我在代码中看到了一个主要布局（垂直）。然后，对于每个复选框，我创建了一个水平布局。在这种情况下，您可以使用元素的颜色和字体（复选框，项目等）。我希望它有所帮助。

Answer 2

创建对话框后：

AlertDialog dialog = builder.create();
dialog.show();
Button buttonPositive = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
buttonPositive.setTextColor(ContextCompat.getColor(this, R.color.green));
Button buttonNegative = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
buttonNegative.setTextColor(ContextCompat.getColor(this, R.color.red));

Answer 3

文本颜色取自colorAccent中设置的styles.xml值（根据您在活动中设置的样式）。

Answer 4

您可以按照以下步骤操作：

1。添加样式并随意命名，在我的情况下为struct Model: Codable { let tall: Int }

AlertDialogTheme

2。在<style name="AlertDialogTheme" parent="Theme.AppCompat.Light.Dialog.Alert"> <item name="colorAccent">@color/colorPrimaryDark</item> </style>实例中，将样式作为第二个参数传递。请注意，如果要通过活动创建实例，请用AlertDialog.Builder()

替换第一个参数

this

查看您的更改

Answer 5

对于“材料设计”警报对话框：

<style name="MyTheme" parent="MaterialAlertDialog.MaterialComponents">
    <item name="materialAlertDialogTitleTextStyle">@style/AlertDialogTitleText</item>
    <item name="materialAlertDialogBodyTextStyle">@style/AlertDialogBodyText</item>
</style>

<style name="AlertDialogTitleText" parent="MaterialAlertDialog.MaterialComponents.Title.Text">
    <item name="android:textColor">@android:color/black</item>
</style>

<style name="AlertDialogBodyText" parent="MaterialAlertDialog.MaterialComponents.Body.Text">
    <item name="android:textColor">@android:color/white</item>
</style>

该对话框应使用“材质”构建器构建，并且需要设置样式。

new MaterialAlertDialogBuilder(getContext(), R.style.MyTheme)
            .setTitle("Title")
            .setMessage("Message");

如何在AlertDialog中更改textcolor

5 个答案: