Android RelativeLayout + TextView动态

Question

我在要显示的TextView内部动态创建了一个布局。它可以工作，但是如何定位TextView的右侧和左侧呢？ 谢谢

ScrollView sv = new ScrollView(this);

sv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));

RelativeLayout r_layout = new RelativeLayout(this);

r_layout.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));

sv.addView(r_layout);

TextView tv2 = new TextView(this);
TextView tv1 = new TextView(this);

 int id1 = 1;
        tv1.setId(id1);

        RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
        p.addRule(RelativeLayout.RIGHT_OF, tv1.getId());

        tv2.setText(data.getStringExtra("prodotto"));
        tv1.setText(data.getStringExtra("prodotto"));

        r_layout.addView(tv2, p);



        layout_relativo.addView(sv);

Answer 1

首先使用setID()方法将ID设置为您的第一个TextView，然后需要为第二个TextView添加RIGHT_OF规则，如下所示。

RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
p.addRule(RelativeLayout.RIGHT_OF, tv1.getId());
r_layout.addView(tv2, p);