java - 构造ArrayAdaptor时出现Resources.NotFoundException

Question

这是我的 .java 文件:

package com.example.rohitkulkarni.readingfile;

import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

       ListView listView= (ListView) findViewById(R.id.listView);
        try{

                InputStream inputreader = getAssets().open("myaddress.txt");
                BufferedReader buffreader = new BufferedReader(new InputStreamReader(inputreader));



                ArrayList<String> lines = new ArrayList<String>();
           boolean hasNextLine =true;
            while (hasNextLine){

               String line =  buffreader.readLine();
                lines.add(line);
               hasNextLine = line != null;


            }
                    tv.setText((CharSequence) lines);

            //exception here:
            ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(),R.id.listView,lines);

         listView.setAdapter(adapter);

           inputreader.close();

        }
        catch(FileNotFoundException e){

        }catch(IOException e){

        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

这是我的 xml 文件:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <ListView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/listView"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />
</RelativeLayout>

我正在使用 getAsset 一切正常，但只有 ArrayAdaptor 不起作用我尝试了所有可能的组合，但它不起作用。它使用简单的字符串数组。

Answer 1

字符串行= buffreader.readLine();

//我发现他取的是空值，因此检查它

if(line != null);

            lines.add(line);
           hasNextLine = line != null;

//不是工作正常，谢谢