I couldn't get that one to work so I'm trying something else.
Here's where the button is pressed:
btnMP.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
memNum = memNum +
Double.parseDouble(txtCalc.getText().toString());
operator = 0; }
});
Here's a thingie I hammered together from parts:
// Save MEMORY
public void WriteMemory(OnClickListener onClickListener, double
memNum){
File sdcard = Environment.getExternalStorageDirectory();
File destinationdir = new File(sdcard,/download/calculator);
destinationdir.mkdir();
File destinationfile = new File(destinationdir,memory.dat);
FileOutputStream fOut = null;
OutputStreamWriter osw = null;
try{
destinationfile.createNewFile();
fOut = new FileOutputStream(destinationfile);
osw = new OutputStreamWriter(fOut);
osw.write((int) memNum);
osw.flush();
Toast.makeText((Context) onClickListener, Memory
saved,Toast.LENGTH_SHORT).show();
}
catch (Exception e) {
e.printStackTrace();
//Toast.makeText((Context) onClickListener, Memory not
saved,Toast.LENGTH_SHORT).show();
}
finally {
try {
osw.close();
fOut.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
This is called by inserting WriteMemory(this,memNum); in the button
routine thusly:
btnMP.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
memNum = memNum +
Double.parseDouble(txtCalc.getText().toString());
operator = 0; }
WriteMemory(this,memNum);
});
The file is created but nothing is written in it. What's missing?
Brian
On Sep 28, 3:38 pm, Yusuf Saib (T-Mobile USA) yusuf.s...@t-
Mobile.com wrote:
txt is declared inside your if (hasChanged) { scope. Then you use it
after the corresponding }.
Yusuf Saib
Android
·T· · ·Mobile· stick together
The views, opinions and statements in this email are those of the
author solely in their individual capacity, and do not necessarily
represent those of T-Mobile USA, Inc.
On Sep 27, 10:02 am, bgoody bgoody...@gmail.com wrote:
Hi. I am trying to hack this bit of code tosavethe results of a
calculation to disk but it says that the variable (txt) cannot be
resolved.
Any ideas!
private void handleEquals(int newOperator) {
if (hasChanged) {
switch (operator) {
case 1:
num = num +Double.parseDouble(txtCalc.getText().toString());
break;
case 2:
num = num -Double.parseDouble(txtCalc.getText().toString());
break;
case 3:
num = num *Double.parseDouble(txtCalc.getText().toString());
break;
case 4:
num = num /Double.parseDouble(txtCalc.getText().toString());
break;
}
String txt =Double.toString(num);
txtCalc.setText(txt);
txtCalc.setSelection(txt.length());
readyToClear = true;
hasChanged = false;
}
FileOutputStream fOut = openFileOutput
(samplefile.txt,MODE_WORLD_READABL E);
OutputStreamWriter osw = new OutputStreamWriter(fOut);
osw.write(txt);
osw.flush();
fOut.close();
osw.close();
operator = newOperator;
}
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