android - 如何以编程方式固定 View 在线性布局中的位置

Question

我在这里以编程方式将 LinearLayout(child view) 添加到另一个 LinearLayout(parentview) 我想将 subview 的位置设置为 center_horizo​​ntal。怎么做？请有人帮助我。

code

LinearLayout linearLayoutstate = new LinearLayout(this);

linearLayoutstate.setOrientation(LinearLayout.HORIZONTAL);

TextView stateTitletv = new TextView(this);

stateTitletv.setText("tv1");

TextView state_valuetv = new TextView(this);    

state_valuetv.setText("tv2");    

linearLayoutstate.addView(stateTitletv);

linearLayoutstate.addView(state_valuetv);

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT,Gravity.CENTER_HORIZONTAL);

LL_SelectedFilters.addView(linearLayoutstate,layoutParams);

Answer 1

使用这个小改动:::

  LinearLayout linearLayoutstate = new LinearLayout(this);

  linearLayoutstate.setOrientation(LinearLayout.HORIZONTAL);
  linearLayoutstate.setGravity(Gravity.CENTER_HORIZONTAL);
  LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);

  TextView stateTitletv = new TextView(this);

  stateTitletv.setText("tv1");

  TextView state_valuetv = new TextView(this);

  state_valuetv.setText("tv2");

  linearLayoutstate.addView(stateTitletv);

  linearLayoutstate.addView(state_valuetv);

  LL_SelectedFilters.addView(linearLayoutstate,layoutParams);