我正在尝试使用FileOutputStream
和OutputStreamWriter
写入文件,但我不断收到只读警告。Android文件写入只读文件系统警告
这里是我使用
FileOutputStream fw = new FileOutputStream((trackName.replaceAll(" ", ""))+".gpx", true);
OutputStreamWriter osw = new OutputStreamWriter(fw);
osw.write(XML_HEADER+"\n");
osw.write(TAG_GPX+"\n");
writeTrackPoints(trackName, osw, locations, time, trackDescp);
writeWayPoints(osw, locations,time);
osw.flush();
osw.close();
代码和Logcat
输出
java.io.FileNotFoundException: /test.gpx (Read-only file system)
at org.apache.harmony.luni.platform.OSFileSystem.openImpl(Native Method)
at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:152)
at java.io.FileOutputStream.<init>(FileOutputStream.java:97)
at java.io.FileOutputStream.<init>(FileOutputStream.java:168)
at java.io.FileOutputStream.<init>(FileOutputStream.java:147)
at com.fyp.run_race.GPXFileWriter.<init>(GPXFileWriter.java:25)
at com.fyp.run_race.GPSTrackDetails$1.onClick(GPSTrackDetails.java:58)
at android.view.View.performClick(View.java:2408)
at android.view.View$PerformClick.run(View.java:8816)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
我柔夷花序确定是什么问题真的。
您是否在Android Manifest中为此设置了用户权限? – ihrupin 2012-02-09 16:49:02