先跳转到fragement所在的activity,在根据情况判断该显示哪个fragment
Intent intent = new Intent(this,MainActivity.class);
intent.putExtra("id", 1);
startActivity(intent);
//singleInstance模式,返回时选择fragment的显示protected void onRestart() {
Log.e("zz","onRestart");
int id= getIntent().getIntExtra("id", 0);
if(id==1){
addFragment(my_f);
showFragment(my_f);
}
super.onRestart();
}