Reputation: 1708
I am following a tutorial for creating a simple notepad application and I have been stuck for hours trying to figure why isn't my file saving
Everything works fine up to the point when I try to save the txt file, I have also added permissions into the manifest.
The Toast also doesn't appear after I hit the save button
Note Editing Java (Getting file name and text):
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_save:
SaveNote();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void SaveNote() {
if (filename == null) {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Note Name");
alert.setMessage("Please input the note name.");
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String value = input.getText().toString();
filename = value + ".txt";
new Script_manager(Script_editor.this).SaveNote(filename, et_editor.getText().toString());
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();
} else {
new Script_manager(Script_editor.this).SaveNote(filename, et_editor.getText().toString());
}
}
Backend Java to save note:
private String path = Environment.getExternalStorageDirectory().getAbsolutePath() +"/Scripts/";
public void SaveNote(String sFileName, String sBody){
try
{
File root = new File(this.path);
if (!root.exists()) {
root.mkdirs();
}
File file = new File(root, sFileName);
FileWriter writer = new FileWriter(file);
writer.append(sBody);
writer.flush();
writer.close();
Toast.makeText(this.context, "Saved", Toast.LENGTH_SHORT).show();
}
catch(IOException e)
{
e.printStackTrace();
}
}
Log Cat:
>01-19 14:06:48.113 21958-21958/com.test.android.notetutorial W/System.err: java.io.FileNotFoundException: /storage/emulated/0/Scripts/dfeff.txt: open failed: ENOENT (No such file or directory)
>01-19 14:06:48.113 21958-21958/com.test.android.notetutorial W/System.err: at libcore.io.IoBridge.open(IoBridge.java:452)
>01-19 14:06:48.113 21958-21958/com.test.android.notetutorial W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
>01-19 14:06:48.113 21958-21958/com.test.android.notetutorial W/System.err: at java.io.FileOutputStream.<init>(FileOutputStream.java:72)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at java.io.FileWriter.<init>(FileWriter.java:42)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at com.test.android.notetutorial.Script_manager.SaveNote(Script_manager.java:50)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at com.test.android.notetutorial.Script_editor$1.onClick(Script_editor.java:76)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:163)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at android.os.Looper.loop(Looper.java:148)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5525)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at java.lang.reflect.Method.invoke(Native Method)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at libcore.io.Posix.open(Native Method)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: at libcore.io.IoBridge.open(IoBridge.java:438)
>01-19 14:06:48.114 21958-21958/com.test.android.notetutorial W/System.err: ... 12 more
Upvotes: 1
Views: 133
Reputation: 2485
have you added permission to store file in manifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
also create a file first
public void generateNoteOnSD(String sFileName, String sBody){
try
{
File root = new File(Environment.getExternalStorageDirectory(), "Notes");
if (!root.exists()) {
root.mkdirs();
}
File gpxfile = new File(root, sFileName);
FileWriter writer = new FileWriter(gpxfile);
writer.append(sBody);
writer.flush();
writer.close();
Toast.makeText(this, "Saved", Toast.LENGTH_SHORT).show();
}
catch(IOException e)
{
e.printStackTrace();
importError = e.getMessage();
iError();
}
}
Upvotes: 0
Reputation: 10299
You forgot to create new file before adding content to it.
public void SaveNote(String sFileName, String sBody){
try {
File root = new File(this.path);
if (!root.exists()) {
root.mkdirs();
}
File file = new File(root, sFileName);
if(!file.exists()){ //Check if file exist
// Create new File
file.createNewFile();
}
FileWriter writer = new FileWriter(file);
writer.append(sBody);
writer.flush();
writer.close();
Toast.makeText(this.context, "Saved", Toast.LENGTH_SHORT).show();
} catch(IOException e){
e.printStackTrace();
}
}
Upvotes: 1