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我想在android片段中設置工具欄標題。但我的代碼在下面的代碼給空指針異常:在Android片段中設置標題工具欄給空指針
((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("PROFIL");
這是我的全部代碼
package id.prasetyo.appsgaul.Layout;
import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import id.prasetyo.appsgaul.R;
public class Profil2Activity extends android.support.v4.app.Fragment implements SwipeRefreshLayout.OnRefreshListener {
private Toolbar toolbar;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_profil2, container, false);
toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar
((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("PROFIL");
return rootView;
}
@Override
public void onRefresh() {
}
}
任何建議,將不勝感激。謝謝
你能給我們堆棧跟蹤嗎? –
我的意思是stack trace..log貓? –
活動 – Rahul