多个fragment切换，而不重新加载数据的实现

 多个fragment切换，而不重新加载数据的实现

1、在xml中添加一个framlayout

<FrameLayout 
        android:id="@+id/framelayout"
        android:layout_width="match_parent"
        android:layout_weight="1"
        android:layout_height="0dp" />

2、初始化所有fragment，并添加一个fragment显示

private void initFragment() {
		
		allfragment = new Ts_All_Fragment();
		unstartfragment = new Ts_unstart_Fragment();
		finishfragment = new Ts_finish_Fragment();
		startfragment = new Ts_start_Fragment();
		
		mFragmentMan = getSupportFragmentManager();
		FragmentTransaction ft = mFragmentMan.beginTransaction();
		ft.add(R.id.framelayout,startfragment).commit();
		mContent = startfragment;
	}

3、当点击控件时，切换fragment 调用下面的方法

public void switchContent(Fragment to) {
   if (mContent != to) {
      FragmentTransaction transaction = mFragmentManager.beginTransaction().setCustomAnimations(
            android.R.anim.fade_in, android.R.anim.fade_out);
      // 先判断是否被add过
      if (!to.isAdded()) {
         // 隐藏当前的fragment
         transaction.hide(mContent).add(R.id.framelayout, to).commit();
      }else {
         transaction.hide(mContent).show(to).commit(); //提交
      }
     mContent = to;
   }
}

4、在监听方法中调用即可：

@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.ts_activity_tv1:
			switchContent( allfragment);
			break;
		case R.id.ts_activity_tv2:
			switchContent( unstartfragment);
			break;
		case R.id.ts_activity_tv3:
			switchContent( startfragment);
			break;
		case R.id.ts_activity_tv4:
			switchContent(finishfragment);
			break;

		default:
			break;
		}