本文介绍了SQLiteAssetHelper:无法打开数据库写入(会尝试只读)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

这个问题已经被问的人,但经历从许多人的步骤,我仍然无法在我的结束来解决这个问题,我的应用程序工作,但不是真正的设备上模拟器罚款,并给出以下2例外,第一个例外是第二例外的主要来源,我想有一些权限问题。我已经添加了

 <使用许可权的android:NAME =android.permission.WRITE_EXTERNAL_STORAG​​E/>

要清单文件,但我得到了同样的结果。我的数据库是很简单的一个表。此外,我已经添加了android_metadata表和编辑我的其他表的id字段为_id。我相信我的数据库是在资产的文件夹present。

任何帮助将是AP preciated。

第一个例外

  12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):无法打开Shajra写(会尝试只读):
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):com.readystatesoftware.sqliteasset.SQLiteAssetHelper $ SQLiteAssetException:缺少数据库/ Shajra文件(或.zip,.gz的压缩文件)的资产,或目标文件夹不可写
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.content.res.AssetManager.openAsset(本机方法)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.content.res.AssetManager.open(AssetManager.java:325)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.content.res.AssetManager.open(AssetManager.java:299)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.readystatesoftware.sqliteasset.SQLiteAssetHelper.copyDatabaseFromAssets(SQLiteAssetHelper.java:436)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.readystatesoftware.sqliteasset.SQLiteAssetHelper.createOrOpenDatabase(SQLiteAssetHelper.java:400)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getWritableDatabase(SQLiteAssetHelper.java:176)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getReadableDatabase(SQLiteAssetHelper.java:254)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.nannandotcom.MainActivity.onCreate(MainActivity.java:27)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.ActivityThread.access $ 1500(ActivityThread.java:135)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1054)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.os.Handler.dispatchMessage(Handler.java:99)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.os.Looper.loop(Looper.java:150)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在android.app.ActivityThread.main(ActivityThread.java:4389)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在java.lang.reflect.Method.invokeNative(本机方法)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在java.lang.reflect.Method.invoke(Method.java:507)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:849)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
12月2日至24日:58:10.067:E / SQLiteAssetHelper(7107):在dalvik.system.NativeStart.main(本机方法)

第二个例外

  12月2日至24日:58:10.077:E /数据库(7107):dbopen():sqlite3_open_v2(/数据/数据​​/ com.example.nannandotcom /数据库/ Shajra ,&安培;手柄,1,NULL)失败
12月2日至24日:58:10.077:E /数据库(7107):dbopen():错误号= 2,错误消息=没有这样的文件或目录
12月2日至24日:58:10.077:D / AndroidRuntime(7107):关闭VM
12月2日至24日:58:10.077:W / dalvikvm(7107):主题ID = 1:螺纹未捕获的异常(组= 0x4011f5a0)退出
12月2日至24日:58:10.108:E / AndroidRuntime(7107):致命异常:主要
12月2日至24日:58:10.108:E / AndroidRuntime(7107):了java.lang.RuntimeException:无法启动活动ComponentInfo {com.example.nannandotcom / com.nannandotcom.MainActivity}:android.database.sqlite.SQLiteException:不能打开数据库文件
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1872)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread.access $ 1500(ActivityThread.java:135)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1054)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.os.Handler.dispatchMessage(Handler.java:99)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.os.Looper.loop(Looper.java:150)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread.main(ActivityThread.java:4389)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在java.lang.reflect.Method.invokeNative(本机方法)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在java.lang.reflect.Method.invoke(Method.java:507)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:849)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在dalvik.system.NativeStart.main(本机方法)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):android.database.sqlite.SQLiteException:无法打开数据库文件产生的原因
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.database.sqlite.SQLiteDatabase.dbopen(本机方法)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.database.sqlite.SQLiteDatabase<&初始化GT;(SQLiteDatabase.java:1962)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:906)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getReadableDatabase(SQLiteAssetHelper.java:264)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在com.nannandotcom.MainActivity.onCreate(MainActivity.java:27)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
12月2日至24日:58:10.108:E / AndroidRuntime(7107):11 ...更多

DatabaseHelper

 包com.nannandotcom;进口java.io.FileOutputStream中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.io.OutputStream中;进口android.content.Context;
进口android.database.Cursor;
进口android.database.sqlite.SQLiteDatabase;进口com.nannandotcom.model.ProfileBean;
进口com.readystatesoftware.sqliteasset.SQLiteAssetHelper;公共类DatabaseHelper扩展SQLiteAssetHelper {    私有静态最后弦乐DATABASE_NAME =Shajra;
    私有静态最终诠释DATABASE_VERSION = 1;    私人上下文的背景下;    公共DatabaseHelper(上下文的背景下){
        超(背景下,DATABASE_NAME,空,DATABASE_VERSION);
        this.context =背景;
    }    公共无效copyDatabase()抛出IOException
    // SQLiteDatabase CHECKDB = SQLiteDatabase.openDatabase(context.getAssets()+(DATABASE_NAME),空,SQLiteDatabase.OPEN_READONLY);
    // checkDB.close();
    InputStream的myInput = context.getAssets()开(DATABASE_NAME)。
    字符串outFileName =/数据/数据​​/+ context.getPackageName()+/数据库/+ DATABASE_NAME;
    的OutputStream myOutput =新的FileOutputStream(outFileName);    字节[]缓冲区=新的字节[1024];
    INT长;
    而((长度= myInput.read(缓冲液))大于0){
        myOutput.write(缓冲液,0,长度);
    }    myOutput.flush();
    myOutput.close();
    myInput.close();
    }    公共ProfileBean getProfileBean(SQLiteDatabase数据库,INT ID){
        ProfileBean profileBean =新ProfileBean();
        尝试{
            光标C = database.query(情景模式
                    新的String [] {_ ID,姓名,资格,WorkingAt,LivesAt,MaritalStatus,NumberOfChildren
                    电话,电子邮件,图片,MarriedTo,父亲,母亲,出生日期,性别},
                    _id =?,
                    新的String [] {Integer.toString(ID)},NULL,NULL,NULL);
            如果(C!= NULL){
                如果(c.moveToFirst()){
                    做{                    }而(c.moveToNext());
                }
            }
        }
        赶上(例外五){
            e.printStackTrace();
        }
        返回profileBean;
    }
}

MainActivity

 包com.nannandotcom;进口java.io.IOException异常;
进口com.example.nannandotcom.R;进口android.os.Bundle;
进口android.app.Activity;
进口android.content.Intent;
进口android.database.Cursor;
进口android.database.SQLException;
进口android.database.sqlite.SQLiteDatabase;
进口android.util.Log;
进口android.view.Menu;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.Button;
进口android.widget.EditText;
进口android.widget.Toast;公共类MainActivity延伸活动{    @覆盖
    保护无效的onCreate(捆绑savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.activity_main);
        DatabaseHelper databaseHelper =新DatabaseHelper(本);
        SQLiteDatabase数据库= databaseHelper.getReadableDatabase();        尝试{
            databaseHelper.copyDatabase();
    }
        }赶上(的SQLException SQLE){            扔SQLE;        }
        }
        赶上(例外五){
            Log.e(MainActivity,e.getMessage());
            e.printStackTrace();
        }        最终的EditText enterName =(EditText上)findViewById(R.id.editText1);
        按钮提交=(按钮)findViewById(R.id.button1);
        submit.setOnClickListener(新OnClickListener(){            @覆盖
            公共无效的onClick(视图v){
                意图mainActivityIntent =新意图(MainActivity.this,Welcome.class);
                mainActivityIntent.putExtra(username的,enterName.getText()的toString());
                startActivity(mainActivityIntent);
            }
        });
    }    @覆盖
    公共布尔onCreateOptionsMenu(菜单菜单){
        //充气菜单;如果是present这增加了项目操作栏。
        。getMenuInflater()膨胀(R.menu.main,菜单);
        返回true;
    }}


解决方案

我认为你缺少分贝扩展在 DATABASE_NAME

所以,给出具体的 DATABASE_NAME 带扩展名按资产目录。

替换

 私有静态最后弦乐DATABASE_NAME =Shajra;

通过

 私有静态最后弦乐DATABASE_NAME =Shajra.db;

或者

 私有静态最后弦乐DATABASE_NAME =Shajra.sqlite;

This question has already been asked by the people but going through the steps from many of them I am still unable to fix the problem at my end, My app is working fine on emulator but not on the real device and gives the following 2 exceptions, the first exception is the major source of second exception and i guess there is some permission issue. I have added the

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

to the manifest file but i got the same result. My database is very simple with one table. ALso i have added "android_metadata" table and edit my other table's id field to "_id". and I am sure my database is present in the assets folder.

Any help would be appreciated.

first exception

02-24 12:58:10.067: E/SQLiteAssetHelper(7107): Couldn't open Shajra for writing (will try read-only):
02-24 12:58:10.067: E/SQLiteAssetHelper(7107): com.readystatesoftware.sqliteasset.SQLiteAssetHelper$SQLiteAssetException: Missing databases/Shajra file (or .zip, .gz archive) in assets, or target folder not writable
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.content.res.AssetManager.openAsset(Native Method)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.content.res.AssetManager.open(AssetManager.java:325)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.content.res.AssetManager.open(AssetManager.java:299)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.readystatesoftware.sqliteasset.SQLiteAssetHelper.copyDatabaseFromAssets(SQLiteAssetHelper.java:436)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.readystatesoftware.sqliteasset.SQLiteAssetHelper.createOrOpenDatabase(SQLiteAssetHelper.java:400)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getWritableDatabase(SQLiteAssetHelper.java:176)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getReadableDatabase(SQLiteAssetHelper.java:254)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.nannandotcom.MainActivity.onCreate(MainActivity.java:27)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.ActivityThread.access$1500(ActivityThread.java:135)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1054)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.os.Handler.dispatchMessage(Handler.java:99)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.os.Looper.loop(Looper.java:150)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at android.app.ActivityThread.main(ActivityThread.java:4389)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at java.lang.reflect.Method.invokeNative(Native Method)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at java.lang.reflect.Method.invoke(Method.java:507)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
02-24 12:58:10.067: E/SQLiteAssetHelper(7107):  at dalvik.system.NativeStart.main(Native Method)

second exception

02-24 12:58:10.077: E/Database(7107): dbopen(): sqlite3_open_v2("/data/data/com.example.nannandotcom/databases/Shajra", &handle, 1, NULL) failed
02-24 12:58:10.077: E/Database(7107): dbopen(): errno = 2, error message = No such file or directory
02-24 12:58:10.077: D/AndroidRuntime(7107): Shutting down VM
02-24 12:58:10.077: W/dalvikvm(7107): threadid=1: thread exiting with uncaught exception (group=0x4011f5a0)
02-24 12:58:10.108: E/AndroidRuntime(7107): FATAL EXCEPTION: main
02-24 12:58:10.108: E/AndroidRuntime(7107): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.nannandotcom/com.nannandotcom.MainActivity}: android.database.sqlite.SQLiteException: unable to open database file
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1872)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread.access$1500(ActivityThread.java:135)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1054)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.os.Looper.loop(Looper.java:150)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread.main(ActivityThread.java:4389)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at java.lang.reflect.Method.invokeNative(Native Method)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at java.lang.reflect.Method.invoke(Method.java:507)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at dalvik.system.NativeStart.main(Native Method)
02-24 12:58:10.108: E/AndroidRuntime(7107): Caused by: android.database.sqlite.SQLiteException: unable to open database file
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.database.sqlite.SQLiteDatabase.dbopen(Native Method)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.database.sqlite.SQLiteDatabase.<init>(SQLiteDatabase.java:1962)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:906)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at com.readystatesoftware.sqliteasset.SQLiteAssetHelper.getReadableDatabase(SQLiteAssetHelper.java:264)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at com.nannandotcom.MainActivity.onCreate(MainActivity.java:27)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
02-24 12:58:10.108: E/AndroidRuntime(7107):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
02-24 12:58:10.108: E/AndroidRuntime(7107):     ... 11 more

DatabaseHelper

package com.nannandotcom;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

import com.nannandotcom.model.ProfileBean;
import com.readystatesoftware.sqliteasset.SQLiteAssetHelper;

public class DatabaseHelper extends SQLiteAssetHelper {

    private static final String DATABASE_NAME = "Shajra";
    private static final int DATABASE_VERSION = 1;

    private Context context;

    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        this.context = context;
    }

    public void copyDatabase() throws IOException{
    //  SQLiteDatabase checkDB = SQLiteDatabase.openDatabase(context.getAssets().+(DATABASE_NAME), null, SQLiteDatabase.OPEN_READONLY);
    //  checkDB.close();
    InputStream myInput = context.getAssets().open(DATABASE_NAME);
    String outFileName =  "/data/data/"+ context.getPackageName() + "/databases/" + DATABASE_NAME;
    OutputStream myOutput = new FileOutputStream(outFileName);

    byte[] buffer = new byte[1024];
    int length;
    while ((length = myInput.read(buffer))>0){
        myOutput.write(buffer, 0, length);
    }

    myOutput.flush();
    myOutput.close();
    myInput.close();
    }

    public ProfileBean getProfileBean(SQLiteDatabase database,int id){
        ProfileBean profileBean = new ProfileBean();
        try {
            Cursor c = database.query("Profiles",
                    new String[]{"_id","Name","Qualification","WorkingAt","LivesAt","MaritalStatus","NumberOfChildren",
                    "Telephone","Email","Picture","MarriedTo","Father","Mother","DOB","Gender"},
                    "_id=?",
                    new String[]{Integer.toString(id)},null, null, null);
            if (c != null ) {
                if  (c.moveToFirst()) {
                    do {

                    }while (c.moveToNext());
                }
            }
        }
        catch(Exception e){
            e.printStackTrace();
        }
        return profileBean;
    }
}

MainActivity

package com.nannandotcom;

import java.io.IOException;
import com.example.nannandotcom.R;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        DatabaseHelper databaseHelper = new DatabaseHelper(this);
        SQLiteDatabase database = databaseHelper.getReadableDatabase();

        try {
            databaseHelper.copyDatabase();
    }
        }catch(SQLException sqle){

            throw sqle;

        }
        }
        catch(Exception e){
            Log.e("MainActivity", e.getMessage());
            e.printStackTrace();
        }

        final EditText enterName = (EditText) findViewById(R.id.editText1);
        Button submit = (Button) findViewById(R.id.button1);
        submit.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent mainActivityIntent = new   Intent(MainActivity.this, Welcome.class);
                mainActivityIntent.putExtra("userName", enterName.getText().toString());
                startActivity(mainActivityIntent);
            }
        });
    }

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

}
解决方案

i think you are missing db extension in DATABASE_NAME.

So give specific DATABASE_NAME with extension as per assets directory.

Replace

private static final String DATABASE_NAME = "Shajra";

With

private static final String DATABASE_NAME = "Shajra.db";

Or

private static final String DATABASE_NAME = "Shajra.sqlite";

这篇关于SQLiteAssetHelper:无法打开数据库写入(会尝试只读)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-10 22:34