优化Fragment使用：两种高效方法

1:普通(笨)的写法
FragmentManager fm;普通
BtnSelect hotspot_tv01;
BtnSelect hotspot_tv02;
BtnSelect hotspot_tv03;
BtnSelect hotspot_tv04;
/**
 * 初妾化view布局里的内容
 * @param nCurAction
 */
@SuppressLint("NewApi")
private void initViewUp(int nCurAction) {
switch (nCurAction) {
case 1035: //热点
    fm = mContext.getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.hotspot_container, new HotSpot_Research_Fragment());
ft.commit();

hotspot_tv01 = (BtnSelect) findViewById(R.id.hotspot_tv01);
hotspot_tv02 = (BtnSelect) findViewById(R.id.hotspot_tv02);
hotspot_tv03 = (BtnSelect) findViewById(R.id.hotspot_tv03);
hotspot_tv04 = (BtnSelect) findViewById(R.id.hotspot_tv04);

hotspot_tv01.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.hotspot_container, new HotSpot_Research_Fragment());

hotspot_tv01.setbtnbackground(R.drawable.select_pressed);
hotspot_tv01.setbottomline(1);
hotspot_tv02.setbtnbackground(R.drawable.select_up);
hotspot_tv02.setbottomline(0);
hotspot_tv03.setbtnbackground(R.drawable.select_up);
hotspot_tv03.setbottomline(0);
hotspot_tv04.setbtnbackground(R.drawable.select_up);
hotspot_tv04.setbottomline(0);
ft.commit();
}
});
hotspot_tv02.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.hotspot_container, new HotSpot_ImportantNews_Fragment());
hotspot_tv01.setbtnbackground(R.drawable.select_up);
hotspot_tv01.setbottomline(0);
hotspot_tv02.setbtnbackground(R.drawable.select_pressed);
hotspot_tv02.setbottomline(1);

hotspot_tv03.setbtnbackground(R.drawable.select_up);
hotspot_tv03.setbottomline(0);
hotspot_tv04.setbtnbackground(R.drawable.select_up);
hotspot_tv04.setbottomline(0);
ft.commit();
}
});
hotspot_tv03.setOnClickListener(new OnClickListener(){
@Override