Question

package com.example.smsread;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import java.lang.reflect.Array;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    ListView listView;

    private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100;
    ArrayList<String> smsList;
    //private static final String TAG == MainActivity.class.getSimpleName()


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

        listView = (ListView) findViewById(R.id.idList);

        int permissionCheck = ContextCompat.checkSelfPermission( this,
                Manifest.permission.READ_SMS);

        if(permissionCheck == PackageManager.PERMISSION_GRANTED) {
            showContacts();
        } else {
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.READ_SMS},
                    PERMISSIONS_REQUEST_READ_CONTACTS);
        }
        }
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResult){
        if(requestCode == PERMISSIONS_REQUEST_READ_CONTACTS){
            if(grantResult[0] == PackageManager.PERMISSION_GRANTED) {
                showContacts();
            }else {
                Toast.makeText(this,
                        "Until you grant the permission, we cannot display the names",
                        Toast.LENGTH_SHORT).show();
            }
        }

}

    private void showContacts(){
        Uri inboxUri = Uri.parse("content://sms/inbox");
        smsList = new ArrayList<>();
        ContentResolver contentResolver = getContentResolver();

        Cursor cursor = contentResolver.query(inboxUri, null, null, null, null);
        while (cursor.moveToNext()){
            String number = cursor.getString(cursor.getColumnIndexOrThrow("address")).toString();
            String body = cursor.getString(cursor.getColumnIndexOrThrow("body")).toString();

            //String number = "098765432";
            //String body = "lat: 33.584317N long: 73.045458";
            String data = body;
            String[] args = data.split(" ");
            //           String a = body.trim();
//            String latitude = args[1];
//            String longitude = args[1];
           // Log.d("Args",a);
            Log.d("Args",args[1]);
            Log.d("Args",args[3]);







            smsList.add("Number:" + number + "\n" + "Body:" + body + "\n"+"latitude:" +args[1]+ "\n" + "longitude:" +args[3] );
                    //+ "\n" + "latitude:" +args[1]+ "\n" + "longitude:" +args[3]

        }
        cursor.close();
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1,
                smsList);

        listView.setAdapter(adapter);
    }

}

错误：E / Android运行时：致命异常：主要流程：com.example.smsread，PID：28273 java.lang.RuntimeException：无法启动活动ComponentInfo {com.example.smsread / com.example.smsread.MainActivity}： java.lang.ArrayIndexOutOfBoundsException：length = 1;索引= 1 在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:3430）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:3614）在android.app.servertransaction.LaunchActivityItem.execute（LaunchActivityItem.java:86）在android.app.servertransaction.TransactionExecutor.executeCallbacks（TransactionExecutor.java:108）在android.app.servertransaction.TransactionExecutor.execute（TransactionExecutor.java:68）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:2199）在android.os.Handler.dispatchMessage（Handler.java:112）在android.os.Looper.loop（Looper.java:216）在android.app.ActivityThread.main（ActivityThread.java:7625）在java.lang.reflect.Method.invoke（本机方法）在com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:524）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:987）由以下原因引起：java.lang.ArrayIndexOutOfBoundsException：length = 1;索引= 1 在com.example.smsread.MainActivity.showContacts（MainActivity.java:83）在com.example.smsread.MainActivity.onCreate（MainActivity.java:44）在android.app.Activity.performCreate（Activity.java:7458）在android.app.Activity.performCreate（Activity.java:7448）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1286）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:3409）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:3614）在android.app.servertransaction.LaunchActivityItem.execute（LaunchActivityItem.java:86）在android.app.servertransaction.TransactionExecutor.executeCallbacks（TransactionExecutor.java:108）在android.app.servertransaction.TransactionExecutor.execute（TransactionExecutor.java:68）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:2199）在android.os.Handler.dispatchMessage（Handler.java:112）在android.os.Looper.loop（Looper.java:216）在android.app.ActivityThread.main（ActivityThread.java:7625）在java.lang.reflect.Method.invoke（本机方法）在com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:524）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:987） I / Process：正在发送信号。 PID：28273 SIG：9进程28273已终止。

为什么会出现此错误？

Answer 1

由于ArrayIndexOutOfBoundsException。将数据拆分为args []并尝试记录args [1]和args [3]时，请确保它具有足够的元素。最好使用更多的安全构造，例如：

i = 0
for p in ax.patches:
    ax.annotate("%.4f" % albion_dataset["Average Speeds"][i], (p.get_x() + p.get_width(), p.get_y() + 1.2),
            xytext=(5, 10), textcoords='offset points')
    print(i)
    i += 1

/ AndroidRuntime：关闭VM

1 个答案: