Android,View设置margin

以把设置margin的方式封装成方法，只要是GroupView里面的LayoutParams 即可。

public static void setMargins (View v, int l, int t, int r, int b) {
    if (v.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
        ViewGroup.MarginLayoutParams p = (ViewGroup.MarginLayoutParams) v.getLayoutParams();
        p.setMargins(l, t, r, b);
        v.requestLayout();
    }
}

使用

TextView tv1 = new TextView(this);
        tv1.setText(getResources().getString(R.string.user_agreement));
        tv1.setTextSize(14);
        tv1.setTextColor(Color.BLUE);

        TextView tv2 = new TextView(this);
        tv2.setText(getResources().getString(R.string.privacy_policy));
        tv2.setTextSize(14);
        tv2.setTextColor(Color.BLUE);
      ;
        LinearLayout linearLayout = new LinearLayout(this);
        linearLayout.setOrientation(LinearLayout.VERTICAL);
        linearLayout.setGravity(Gravity.CENTER);
        linearLayout.addView(tv1);
        linearLayout.addView(tv2);
        setMargins(tv1,50, 20, 0, 0);
        setMargins(tv2,50, 20, 0, 0);