I am working on the following function, but I'm having trouble returning the value "fi", giving the following error:
fi can not be resolved to a variable.
Here is my function:
public File getBitmapFromwebchartView(WebView view2) {
if (view2 != null) {
view2.setDrawingCacheEnabled(true);
Bitmap b = view2.getDrawingCache();
if (b != null) {
try {
File fi = new File(Environment.getExternalStorageDirectory(), "Screenshot" + ".jpg");
//fi = new File(Environment.getExternalStorageDirectory(),"Realitycheck" + ".jpg");
// write the bytes in file
FileOutputStream fo;
fo = new FileOutputStream(fi);
b.compress(CompressFormat.JPEG, 95, fo);
} catch (Exception e) {
e.printStackTrace();
}
}
}
return fi;
}
Thanks for your help.
the variable fi
is out of scope for your return statement, you need to define it outside of your initial if
statement.
public File getBitmapFromwebchartView(WebView view2) {
File fi = null;
if (view2 != null) {
view2.setDrawingCacheEnabled(true);
Bitmap b = view2.getDrawingCache();
if (b != null) {
try {
fi = new File(Environment.getExternalStorageDirectory(), "Screenshot" + ".jpg");
//fi = new File(Environment.getExternalStorageDirectory(),"Realitycheck" + ".jpg");
// write the bytes in file
FileOutputStream fo;
fo = new FileOutputStream(fi);
b.compress(CompressFormat.JPEG, 95, fo);
} catch (Exception e) {
e.printStackTrace();
}
}
}
return fi;
}
Declare File object out side if case :
File fi;
Example :
public File getBitmapFromwebchartView(WebView view2) {
File fi;
if (view2 != null) {
view2.setDrawingCacheEnabled(true);
Bitmap b = view2.getDrawingCache();
if (b != null) {
try {
fi = new File(Environment.getExternalStorageDirectory(), "Screenshot" + ".jpg");
// write the bytes in file
FileOutputStream fo;
fo = new FileOutputStream(fi);
b.compress(CompressFormat.JPEG, 95, fo);
} catch (Exception e) {
e.printStackTrace();
}
}
}
return fi;
}
That is because your fi
is declared in an if clause
and out of the scope. Do something like this:
public File getBitmapFromwebchartView(WebView view2) {
File fi;
if (view2 != null) {
view2.setDrawingCacheEnabled(true);
Bitmap b = view2.getDrawingCache();
if (b != null) {
try {
fi = new File(Environment.getExternalStorageDirectory(), "Screenshot" + ".jpg");
//fi = new File(Environment.getExternalStorageDirectory(),"Realitycheck" + ".jpg");
// write the bytes in file
FileOutputStream fo;
fo = new FileOutputStream(fi);
b.compress(CompressFormat.JPEG, 95, fo);
} catch (Exception e) {
e.printStackTrace();
}
}
}
return fi;
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.