我有一个类似的问题 - 并决定在我的应用程序中放置一个按钮,单击该按钮将数据库复制到 SD 卡。然后,您可以使用 DDMS 将数据库从 SD 卡复制到连接的计算机,并启动您想要检查数据库、验证值等的任何内容。
package com.me.myPackage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.content.Context;
import android.os.Environment;
import android.widget.Toast;
public class Utility {
public static void backupDatabase(Context context) throws IOException {
// Open your local db as the input stream
String inFileName = PATH_TO_YOUR_DB;
File dbFile = new File(inFileName);
FileInputStream fis = new FileInputStream(dbFile);
File outputDirectory = new File(
Environment.getExternalStorageDirectory() + "/PATH_FOR_BACKUP");
outputDirectory.mkdirs();
SimpleDateFormat sdf = new SimpleDateFormat(Constants.DATE_TIME_FORMAT_FOR_DATABASE_NAME); // append date time to db name
String backupFileName = "/MyApp_" + sdf.format(new Date()) + ".db3";
String outFileName = outputDirectory + backupFileName;
// Open the empty db as the output stream
OutputStream output = new FileOutputStream(outFileName);
// transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length;
while ((length = fis.read(buffer)) > 0) {
output.write(buffer, 0, length);
}
// Close the streams
output.flush();
output.close();
fis.close();
Toast.makeText(context, "Database backup complete", Toast.LENGTH_LONG)
.show();
}
}