Java 动态居中线性布局

我有以下动态创建可点击图像视图的代码（取决于您可以将其设置为2x2 3x3 4x4等的值） 一切正常，除了我希望图像视图居中，现在它们从屏幕左侧开始。我希望整个ImageView集合位于屏幕中央

 private void maakLayout() {
    LinearLayout linearLayout = new LinearLayout(this);
    linearLayout.setOrientation(LinearLayout.VERTICAL);
    LinearLayout.LayoutParams layoutParams =
            new LinearLayout.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.MATCH_PARENT);
    layoutParams.gravity = Gravity.CENTER_HORIZONTAL;
    linearLayout.setLayoutParams(layoutParams);
    setContentView(linearLayout);

    TextView textView = new TextView(this);
    textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, (2) * 10);
    textView.setGravity(Gravity.CENTER);

    LinearLayout.LayoutParams layoutTextParams =
            new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.WRAP_CONTENT);
    layoutTextParams.topMargin = 50;
    layoutTextParams.bottomMargin = 50;
    textView.setLayoutParams(layoutTextParams);

    textViewScore = textView;
    linearLayout.addView(textView);


    int k = 0;
    for (int i = 0; i < RASTER; i++) {
        LinearLayout linearLayout1 = new LinearLayout(this);
        //linearLayout1.setOrientation(LinearLayout.HORIZONTAL);
        LinearLayout.LayoutParams layoutParams1 = new LinearLayout.LayoutParams(layoutParams);
        layoutParams1.gravity = Gravity.CENTER_VERTICAL;

        LinearLayout.LayoutParams layoutImageParams =
                new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
        linearLayout1.setLayoutParams(layoutImageParams);
        linearLayout.addView(linearLayout1);

        for (int j = 0; j < RASTER; j++) {
            ImageView imageView = new ImageView(this);
            imageView.setImageResource(R.drawable.back);
            imageView.setTag(k);
            imageView.setBackgroundResource(R.drawable.border_gray);

            LinearLayout.LayoutParams layoutImageParams1 =
                    new LinearLayout.LayoutParams(70, 70);
            layoutImageParams.topMargin = 2;
            layoutImageParams.leftMargin = 2;
            layoutImageParams1.gravity = Gravity.CENTER_HORIZONTAL;
            imageView.setLayoutParams(layoutImageParams1);

            imageView.setOnClickListener(new View.OnClickListener() {

                public void onClick(View v) {
                    klikopknop((ImageView) v);
                }
            });

            knoppen[k] = imageView;
            linearLayout1.addView(imageView);
            k++;
        }
    }


}

private void maakLayout（）{
LinearLayout LinearLayout=新的LinearLayout（本）；
linearLayout.setOrientation（linearLayout.VERTICAL）；
LinearLayout.LayoutParams LayoutParams=
新建LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_父级，
ViewGroup.LayoutParams.MATCH_PARENT）；
layoutParams.gravity=重心水平；
linearLayout.setLayoutParams（layoutParams）；
setContentView（线性布局）；
TextView TextView=新的TextView（此）；
textView.setTextSize（TypedValue.COMPLEX\u UNIT\u SP，（2）*10）；
textView.setGravity（Gravity.CENTER）；
LinearLayout.LayoutParams LayoutExtParams=
新建LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_父级，
ViewGroup.LayoutParams.WRAP_内容）；
layoutTextParams.topMargin=50；
layoutTextParams.bottomMargin=50；
setLayoutParams（layoutTextParams）；
textViewScore=textView；
linearLayout.addView（文本视图）；
int k=0；
对于（int i=0；i

将ImageView的width LayoutParams设置为

MATCH_PARENT

，将scaleType设置为

居中

使用Realtive layout并将ImageView置于相对布局中。然后在父项中添加规则RelativeLayout.CENTER