早上好,如何在AlertDialog
中更改fragment
的背景?
当我单击按钮(片段->按钮->警报对话框)时,将显示我的AlertDialog
。
我在实现AlertDialog
并更改其背景颜色时尝试了以下代码:
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(R.string.scaleTitle);
builder.setView(R.layout.scale_layout);
builder.setNegativeButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
AlertDialog alertDialog = builder.create();
builder.show();
alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.YELLOW));
,但背景仍然相同。
请,我怎么可能更改它?谢谢。
答案 0 :(得分:0)
在res-> values-> styles.xml
中定义这样的样式<style name="CustomAlertDialogTheme" parent="Theme.AppCompat.Dialog.Alert">
<item name="colorAccent">@color/colorAccent</item>
<item name="android:colorBackground">@color/dialogColor</item>
<item name="android:windowBackground">@color/dialogWindowColor</item>
</style>
并使用上述主题资源创建构建器。
AlertDialog.Builder builder = new AlertDialog.Builder(getContext(), R.style.
CustomAlertDialogTheme);
答案 1 :(得分:0)
您可以尝试以下带有黄色的AlertDialog代码。
在Java中:
View view = LayoutInflater.from(this).inflate(R.layout.dialog, null);
View customTitleView = LayoutInflater.from(this).inflate(R.layout.title, null);
AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.AlertDialogCustom);
builder.setView(view);
builder.setCustomTitle(customTitleView);
builder.setNegativeButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
在style.xml中:
<style name="AlertDialogCustom" parent="Theme.AppCompat.Dialog.Alert">
<item name="android:colorBackground">@color/yellow</item>
<item name="android:windowBackground">@color/yellow</item>
</style>
在colors.xml中:
<color name="yellow">#FFFF00</color>
创建以下布局XML:
title.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Dialog"
android:textColor="@android:color/black"
android:textSize="20sp" />
</LinearLayout>
dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
Create a custom view with textview, edittext or whatever you want.
</LinearLayout>
您的输出将如下图所示:
我希望这是您要实现的目标,如果您有任何疑问,请告诉我。
答案 2 :(得分:0)
尝试一下:
AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
builder.setTitle(R.string.scaleTitle);
builder.setView(R.layout.scale_layout);
builder.setNegativeButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
final AlertDialog alertDialog = builder.create();
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface arg0) {
alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.YELLOW));
}
});
alertDialog.show();