非法类型'；无效'；在androidjava类中

我在Android Java应用程序中遇到了非法类型“void”的错误

错误出现在私有void createFolder（）和公共void onRequestPermissionsResult代码块上

我不知道是否缺少一些导入，或者公共类Berechtigungen Extendes AppCompatActivity代码行存在错误

如果有人知道这个问题的答案，请写下来，谢谢

我的代码：

package barsoftware.suedtirolpointer;

import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.Manifest;
import android.content.pm.PackageManager;


public class Berechtigungen extends AppCompatActivity {

    final int REQ_CODE_EXTERNAL_STORAGE_PERMISSION = 45;

    public void GPS() {
        if(ActivityCompat.checkSelfPermission(Berechtigungen.this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED){
            // Anweisung
        } else {
            ActivityCompat.requestPermissions(Berechtigungen.this,new  String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQ_CODE_EXTERNAL_STORAGE_PERMISSION);
        }
    }
};


private void createFolder(){
    File ordner = new File(Environment.getExternalStorageDirectory(), "TestOrdner");
    ordner.mkdirs();
    Toast.makeText(getApplicationContext(), "Ordner erstellt", Toast.LENGTH_SHORT).show();
}

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);

    if(requestCode == REQ_CODE_EXTERNAL_STORAGE_PERMISSION && grantResults.length >0 &&grantResults[0] == PackageManager.PERMISSION_GRANTED){
        createFolder();
    }
}
}

---

这是一个语法错误，应该是这样的：

package barsoftware.suedtirolpointer;

import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.Manifest;
import android.content.pm.PackageManager;

public class Berechtigungen extends AppCompatActivity {

    final int REQ_CODE_EXTERNAL_STORAGE_PERMISSION = 45;

    public void GPS() {

        if (ActivityCompat.checkSelfPermission(Berechtigungen.this, 
        Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
            //

        } else {

            ActivityCompat.requestPermissions(Berechtigungen.this, 
            new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE }, 
            REQ_CODE_EXTERNAL_STORAGE_PERMISSION);
        }
    }

    private void createFolder() {

        File ordner = new File(Environment.getExternalStorageDirectory(), "TestOrdner");
        ordner.mkdirs();
        Toast.makeText(getApplicationContext(), "Ordner erstellt", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if (requestCode == REQ_CODE_EXTERNAL_STORAGE_PERMISSION 
        && grantResults.length > 0 
        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            createFolder();
        }
    }
}

---

也许括号不匹配。什么是“；”在GPS方法的末尾？你有一个额外的支架。删除“}；”格式化代码以突出大括号的问题，当前

createFolder

和

onRequestPermissionsResult

在类之外。使用IDE会在一个窗口中为您突出显示这些错误instant@Cheticamp哦，是的，这些小错误：）谢谢有一个虚假的

在

private void createFolder

之前，因此编译器假定第二个类声明

private class/enum/interface

。