android 数据传递——实例化对象调用方法
1、
2、(1)在LeftMenuFragment中添加
public void SetData(String str){
System.out.println("侧栏接收到的数据是"+str);
}
(2)在Main2Activity中根据标查找Fragment
//根据fragment标签返回Fragment
public LeftMenuFragment getLeftMenuFragment(){
FragmentManager fm = getSupportFragmentManager();
LeftMenuFragment leftMemuFragment = (LeftMenuFragment) fm.findFragmentByTag(FRAGMENT_LEFT_MENU);
return leftMemuFragment;
}(3)在NewsPager中获取Main2Activity实体,然后获取leftMemuFragment,调用setData()