FileNotFoundException only in android app
How is it that I only get FileNotFoundException in an android application and when I read it from a normal Java application it finds the directory.
I am using the same code exactly.
{
BufferedReader bufRdr;
contacts = new ArrayList<Contacts>();
File randomContactsFile = new File(("C://test//randomcontacts.txt"));
try {
bufRdr = new BufferedReader(new FileReader(randomContactsFile));
S开发者_StackOverflow社区tring line = null;
String[] a = new String[2];
while ((line = bufRdr.readLine()) != null)
{
a = line.split(",");
Contacts c = new Contacts(a[0], a[1], a[1], a[1], a[2]);
contacts.add(c);
}
} catch (FileNotFoundException e) {
Log.d("file not found", "check");
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
This is the exception:
10-05 08:04:37.151: WARN/System.err(334):
java.io.FileNotFoundException: /C:/test/randomcontacts.txt (No such
file or directory) 10-05 08:04:37.151: WARN/System.err(334): at
org.apache.harmony.luni.platform.OSFileSystem.open(Native Method)
10-05 08:04:37.161: WARN/System.err(334): at
dalvik.system.BlockGuard$WrappedFileSystem.open(BlockGuard.java:232)
10-05 08:04:37.161: WARN/System.err(334): at
java.io.FileInputStream.<init>(FileInputStream.java:80) 10-05
08:04:37.161: WARN/System.err(334): at
java.io.FileReader.<init>(FileReader.java:42) 10-05 08:04:37.161:
WARN/System.err(334): at
android.test.randomcontacts.RandomContactsActivity.readRandomContacts(RandomContactsActivity.java:177)
10-05 08:04:37.161: WARN/System.err(334): at
android.test.randomcontacts.RandomContactsActivity.onCreate(RandomContactsActivity.java:55)
10-05 08:04:37.161: WARN/System.err(334): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
10-05 08:04:37.161: WARN/System.err(334): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
10-05 08:04:37.161: WARN/System.err(334): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
10-05 08:04:37.161: WARN/System.err(334): at
android.app.ActivityThread.access$1500(ActivityThread.java:117)
Thank you
There is probably no C: drice on your android phone.
You can use for your external drive:
Environment.getExternalStorageDirectory() + /* file */;
This is this in this part of your code:
File randomContactsFile = new File(("C://test//randomcontacts.txt"));
C://test//randomcontacts.txt
is not in unix path format.
If your developing for a phone/tablet you should use something like
/mnt/sdcard/test/randomcontacts.txt
or better:
File rootPath=Environment.getExternalStorageDirectory();
File randomContactsFile = new File(rootPath.getPath()+"/test/randomcontacts.txt");
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