android按钮呈垂直布局,在其线性布局垂直父Android中将以编程方式创建的单选按钮居中...

我正在以编程方式创建一个线性布局，其中orientation = vertical。在该线性布局中，我还以编程方式创建2个或3个对象：

1图像视图

2文本视图(如果需要，我创建此对象)

3单选按钮

问题是如何将单选按钮置于其父级中心？

编辑：我的代码在Xamarin.Android C＃中，但我认为很容易将其转换为Java Android

LinearLayout mainLinearLayout = new LinearLayout(this)

{

Orientation = Orientation.Vertical

};

LinearLayout sub1LinearLayout = new LinearLayout(this)

{

//Set orientation = horizontal

Orientation = Orientation.Horizontal

};

//Add the sub1LinearLayout to the mainLinearLayout

mainLinearLayout.AddView(sub1LinearLayout);

for (int j = 0; j < count; j++)

{

LinearLayout sub2LinearLayout = new LinearLayout(this)

{

Orientation = Orientation.Vertical

};

LinearLayout.LayoutParams layoutParams =

new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WrapContent,

ViewGroup.LayoutParams.WrapContent);

RadioButton Box = new RadioButton(this){

//Set gravity = center

Gravity = GravityFlags.Center

};

switch (SomeMode)

{

//Show radio button + image

case Mode.ShowBoxAndImage:

{

ImageView image = new ImageView(this);

Bitmap imageBitmap = BitmapFactory.DecodeFile(path);

image.SetImageBitmap(imageBitmap);

sub2LinearLayout.AddView(image);

layoutParams.SetMargins(padding, 0, 2 * padding, 0);

break;

}

//Show radio button + its text + image

case Mode.ShowBoxAndImageAndText:

{

ImageView image = new ImageView(this);

Bitmap imageBitmap = BitmapFactory.DecodeFile(path);

image.SetImageBitmap(imageBitmap);

sub2LinearLayout.AddView(image);

TextView Name = new TextView(this)

{

Text = name,

TextSize = nameTextSize,

//Set gravity = center

Gravity = GravityFlags.Center

};

Name.SetTextColor(new Color(ContextCompat.GetColor(this, Resource.Color.colorBlack)));

sub2LinearLayout.AddView(Name);

layoutParams.SetMargins(padding, 0, 2 * padding, 0);

break;

}

}

}

sub2LinearLayout.AddView(Box);

sub2LinearLayout.LayoutParameters = layoutParams;

sub1LinearLayout.AddView(sub2LinearLayout);

//Set sub2LinearLayout gravity = bottom

sub2LinearLayout.SetGravity(GravityFlags.Bottom);