RecordStore rs = RecordStore.openRecordStore("StoryDataBase1",true);
String data_to_write_in_file = Slug.getString()+"^"+title.getString()+"^"+Body.getString()+"^"+com.editorial.Main.MainImagePath+"^"+com.editorial.Main.MainVideoPath+"^"+com.editorial.Main.MainVoicePath+"$";
byte b[] = rs.getRecord(1);
String str = new String(b,0,b.length);
if(str.equals("")) {
byte bytes[] = data_to_write_in_file.getBytes();
rs.addRecord(bytes,0,bytes.length);
}
else
{
str=str+data_to_write_in_file;
byte[] data = str.getBytes();
rs.setRecord(1, data, 0, data.length);
}
rs.closeRecordStore();
在这里我想检查rms是否包含第一个值,否则它将在其中输入新值???但我仍然有点担心,信息是否会永久保留在移动设备中......
答案 0 :(得分:1)
永久存储在RMS中的信息我们已经讨论过这个问题。 请参阅此示例代码并尝试这样,
byte[] recData = null;
int len;
RecordStore rs = RecordStore.openRecordStore("StoryDataBase1", true);
if (rs.getNumRecords() > 0) {
recData = new byte[rs.getRecordSize(1)];
len = rs.getRecord(1, recData, 0);
String value = new String(recData, 0, len);
if(value == null) {
....
} else {
...
}
}
<强>更新强>
请参阅这些链接以供参考,