那些遇到过的问题

ActiveAndroid SQLite异常'没有这样的表'

Mat*_*ech 9 java database sqlite android activeandroid

我遇到了active-android的问题.我试图获取用户位置,乘客数量和总体方向.我想使用activeAndroid将这些保存到名为"Splits"的表中的手机存储中.但每当我调用该save()方法时,我都会得到一长串错误.我试图重新安装应用程序,并在清单中更改我的数据库名称,但这些解决方案都不起作用.请记住我对编程很新,所以如果可能的话,就像我是5.谢谢你:)

这是LogCat输出

11-03 23:27:51.094    2905-2905/dk.specialisering.splitcab E/SQLiteLog? (1) no such table: Splits
11-03 23:27:51.115    2905-2905/dk.specialisering.splitcab E/SQLiteDatabase? Error inserting passengers=1 Id=null startLong=9.92773733 direction=North startLat=57.0487396
    android.database.sqlite.SQLiteException: no such table: Splits (code 1): , while compiling: INSERT INTO Splits(passengers,Id,startLong,direction,startLat) VALUES (?,?,?,?,?)
            at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
            at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1118)
            at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:691)
            at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
            at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
            at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
            at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1589)
            at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1461)
            at com.activeandroid.Model.save(Model.java:153)
            at dk.specialisering.splitcab.MainActivity.save(MainActivity.java:127)
            at dk.specialisering.splitcab.MainActivity$1.onClick(MainActivity.java:37)
            at android.view.View.performClick(View.java:4475)
            at android.view.View$PerformClick.run(View.java:18786)
            at android.os.Handler.handleCallback(Handler.java:730)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5419)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
            at dalvik.system.NativeStart.main(Native Method)
11-03 23:27:51.175    2905-2905/dk.specialisering.splitcab E/SQLiteLog? (1) no such table: Splits
11-03 23:27:51.175    2905-2905/dk.specialisering.splitcab E/SQLiteDatabase? Error inserting passengers=1 Id=null startLong=9.92773733 direction=North startLat=57.0487396
    android.database.sqlite.SQLiteException: no such table: Splits (code 1): , while compiling: INSERT INTO Splits(passengers,Id,startLong,direction,startLat) VALUES (?,?,?,?,?)
            at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
            at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1118)
            at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:691)
            at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
            at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
            at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
            at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1589)
            at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1461)
            at com.activeandroid.Model.save(Model.java:153)
            at dk.specialisering.splitcab.MainActivity.save(MainActivity.java:127)
            at dk.specialisering.splitcab.MainActivity$1.onClick(MainActivity.java:37)
            at android.view.View.performClick(View.java:4475)
            at android.view.View$PerformClick.run(View.java:18786)
            at android.os.Handler.handleCallback(Handler.java:730)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5419)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
            at dalvik.system.NativeStart.main(Native Method)
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这是我的表的Model类

@Table(name = "Splits")
public class Splits extends Model {
    @Column(name = "startLat")
    public double startLat;
    @Column(name = "startLong")
    public double startLong;
    @Column(name = "passengers")
    public int passengers;
    @Column(name = "direction")
    public String direction;


    public Splits()
    {
        super();
    }

    public Splits(double startLat, double startLong, int passengers, String direction)
    {
        this.startLat = startLat;
        this.startLong = startLong;
        this.passengers = passengers;
        this.direction = direction;
    }

}
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我的活动

    package dk.specialisering.splitcab;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.media.Image;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.Spinner;
import android.widget.TextView;

import com.activeandroid.ActiveAndroid;

import dk.specialiserng.model.Splits;


public class MainActivity extends Activity {

    TextView textLat;
    TextView textLong;



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

        final ImageButton btn = (ImageButton)findViewById(R.id.imgBtn);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                save();
            }
        });
        ActiveAndroid.initialize(this);
        populateSpinners();
        initializeLocation();
    }
        private class myLocationListener implements LocationListener{
            @Override
            public void onLocationChanged(Location location) {

                if(location != null) {
                    double pLong = location.getLongitude();
                    double pLat = location.getLatitude();

                    textLat.setText(Double.toString(pLat));
                    textLong.setText((Double.toString(pLong)));
                }

            }

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {

            }

            @Override
            public void onProviderEnabled(String provider) {

            }

            @Override
            public void onProviderDisabled(String provider) {

            }
        }


    public void populateSpinners()
    {
        Spinner passengerSpinner = (Spinner) findViewById(R.id.ddlPassengers);

        Spinner directionSpinner = (Spinner) findViewById(R.id.ddlDirection);
// Create an ArrayAdapter using the string array and a default spinner layout
        ArrayAdapter<CharSequence> passengerAdapter = ArrayAdapter.createFromResource(this,
                R.array.noOfPassengers, android.R.layout.simple_spinner_item);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
                R.array.splitDirection, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
        passengerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
        passengerSpinner.setAdapter(passengerAdapter);

        directionSpinner.setAdapter(adapter);


    }

    public void initializeLocation()
    {

        textLat = (TextView) findViewById(R.id.textLat);
        textLong = (TextView) findViewById(R.id.textLong);

        LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        LocationListener ll = new myLocationListener();
        Location lastLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);

        lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, ll);
        if (lastLocation != null)
        {
            textLat.setText(Double.toString(lastLocation.getLatitude()));
            textLong.setText(Double.toString(lastLocation.getLongitude()));
        }
    }

    public void save()
    {
        Spinner pasSpin = (Spinner)findViewById(R.id.ddlPassengers);
        Spinner dirSpin = (Spinner)findViewById(R.id.ddlDirection);
        double latitude = Double.parseDouble(textLat.getText().toString());
        double longitude = Double.parseDouble(textLong.getText().toString());
        int passengers = Integer.parseInt(pasSpin.getSelectedItem().toString());
        String direction = dirSpin.getSelectedItem().toString();

        Splits splits = new Splits(latitude, longitude, passengers, direction);

        splits.save();


    }

    }
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我的布局

<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">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Your Position in latitude and longitude"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:id="@+id/textLat"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignRight="@+id/textView"
        android:layout_alignEnd="@+id/textView" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:id="@+id/textLong"
        android:layout_below="@+id/textLat"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignRight="@+id/textLat"
        android:layout_alignEnd="@+id/textLat" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Number of Splitters in your party"
        android:id="@+id/textView2"
        android:layout_below="@+id/textLong"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <Spinner
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/ddlPassengers"
        android:layout_below="@+id/textView2"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:spinnerMode="dropdown" />

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="The direction you will be going"
        android:id="@+id/textView3"
        android:layout_below="@+id/ddlPassengers"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <Spinner
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/ddlDirection"
        android:layout_below="@+id/textView3"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:spinnerMode="dropdown" />

    <ImageButton
        android:layout_width="200dp"
        android:layout_height="90dp"
        android:scaleType="fitCenter"
        android:id="@+id/imgBtn"
        android:src="@drawable/gotitbtn"
        android:background="@android:color/transparent"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"

        />

</RelativeLayout>
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我希望有人可以提供帮助,我知道我发了一堆,但我现在已经绝望了.提前致谢

meh*_*hdi 16

虽然很晚,希望对此有所帮助.

来自github中ActiveAndroid的官方页面:

"这是因为如果没有现有的数据库文件, ActiveAndroid 只生成模式.为了在创建新模型后"重新生成"模式,最简单的方法是从模拟器中卸载应用程序并允许它完全重新安装,这是因为这将清除数据库文件和触发ActiveAndroid重新创建基于项目注释车型表".

Ste*_*ven 10

增加清单中的AA_DB_VERSION.这将迫使ActiveAndroid重新生成您的架构.

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