Currently, Android\'s EditText is extremely slow when dealing with a huge amount of lines of text (10000+). It appears like this slowdown is partially due to the fact that E
Avoid using EditText inside a RelativeLayout, use LinearLayout instead.
The alternative would be to use a TextView
(how else would you show the text) and make it act as a EditText
. Here's how:
You'll set an OnClickListener
on your TextView, to show the keyboard:
textView.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
isEnteringText = true; //global
}
});
And override onKeyDown
and process keyboard presses to the TextView:
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(isEnteringText) {
textView.append(event.getDisplayLabel());
return true;
}
return super.onKeyDown(keyCode, event);
}
Obviously this will need a lot of work, such as hiding the keyboard afterward, processing backspace & enter, and clipboard. I kinda formed my answer around this post, you can try the other methods mentioned in there if you're having problems retrieving the keyboard keys. According to them, the above code will work as long as the language is English.
The best thing you can do is using RecyclerView
with EditText
as its item, so you get a new EditText
for each of your lines.
New line will be the only thing you will have to implement.
Although this article only talks about optimizing static TextViews where the text doesn't change, it might get you on the right track for making a more performant EditText.