在Android中的资产文件夹中复制两个SQLite数据库

Question

在过去的几天里,我一直在尝试复制资产文件夹中的两个数据库,但无法取得任何成功.

我设法复制并访问它的一个数据库.但第二个,我需要你的帮助.

Answer 1

private void copydatabase() throws IOException {
//Open your local db as the input stream
InputStream myinput = mycontext.getAssets().open(DB_NAME);// Path to the just created empty db
String outfilename = DB_PATH + DB_NAME;
//Open the empty db as the output stream
OutputStream myoutput = new FileOutputStream("/data/data/(packagename)/databases   /(datbasename).sqlite");
// transfer byte to inputfile to outputfile
byte[] buffer = new byte[1024];
int length;
while ((length = myinput.read(buffer))>0)
{
myoutput.write(buffer,0,length);
}
//Close the streams
myoutput.flush();
myoutput.close();
myinput.close();
}

对您的第二个数据库执行此操作。