Question

我在导航菜单itemClick中使用了它，但它显示上面的错误。我该怎么做才能删除它？

if (id == R.id.item_alarm){
            FragmentManager manager = getSupportFragmentManager();
            manager.beginTransaction().replace(R.id.fragment_container, new NotificationActivity()).commit();
/*Wrong 2nd argument type. Found: 'com.sagar.kugeclass.NotificationActivity', required: 'android.support.v4.app.Fragment'

这是我想在单击导航抽屉菜单项时显示的NotificationActivity：

import android.app.Activity;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.Fragment;
import android.support.v4.app.NotificationCompat;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

import com.sagar.adapters.RecyclerAdapter;
import com.sagar.models.CardItemModel;

import java.util.ArrayList;
import java.util.List;


/**
 * A simple {@link Fragment} subclass.
 */
public class NotificationActivity extends AppCompatActivity implements View.OnClickListener {
    private Button alarmButton;
    private Context context;


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.notification_activity_layout);
        alarmButton = (Button) findViewById(R.id.alarmButton);
        alarmButton.setOnClickListener(this);
    }

    @Override
    public void onClick(View view){
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        Intent repeating_intent = new Intent(context,Repeating_activity.class);
        repeating_intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(context,100,repeating_intent, PendingIntent.FLAG_UPDATE_CURRENT);
        NotificationCompat.Builder builder = (NotificationCompat.Builder) new NotificationCompat.Builder(context)
                .setContentIntent(pendingIntent)
                .setSmallIcon(android.R.drawable.arrow_up_float)
                .setContentTitle("Title")
                .setContentText("Content")
                .setAutoCancel(true);
        notificationManager.notify(100,builder.build());


    }





}

Answer 1

您正在进行Fragment交易，但正在替换为Activity（NotificationActivity）。如果您想首先使用片段，请为NotificationActivity创建一个片段，并将此Activity的代码转移到Fragment。

错误的第二个参数类型。发现：＆＃39; com.sagar.kugeclass.NotificationActivity＆＃39;，required：＆＃39; android.support.v4.app.Fragment＆＃39;

1 个答案: