如何在android中以编程方式为视图（不是viewGroup）设置layout_margin

Question

在为GridLayout动态创建的ImageView以编程方式设置layout_margin时，我遇到了问题。 我试过以下代码：

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GridLayout gridLayout = (GridLayout) findViewById(R.id.idGridLayout);

    gridLayout.setColumnCount(10);
    gridLayout.setRowCount(10);


    for (int i = 1; i <= 100; i++) {
        ImageView tile1 = new ImageView();
        LayoutParams lp = new LayoutParams(100, 100);

        tile1.setLayoutParams(lp);
       lp.setMargins(4, 4, 4, 4); ////not working some error
        tile1.setBackgroundColor(Color.rgb(255, 255, 5));
        //tile1.setBackgroundResource(R.drawable.aalien);
        //tile1.setBackgroundColor();

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我找到了一个方法setMargins(4, 4, 4, 4) ，但是通过这种方式，我只能为诸如LinearLayout / GridLayout / RelativeLayout等的ViewGroups设置边距。

但是我想像使用android:layout_margin="5dp"在xml那样为ImageView设置边距

Answer 1

尝试对每个ImageView执行此操作

ImageView imageView = new ImageView(context);

GridLayout.LayoutParams params = (GridLayout.LayoutParams) imageView.getLayoutParams();

params.setMargins(4, 4, 4, 4); // left, top, right, bottom

imageView.setLayoutParams(params);