How to get the text from the Button when clicked? [duplicate]
for( i=0; i<26; i++) {
btnAlpha[i] = new Button(this);
btnAlpha[i].setBackgroundColor(Color.TRANSPARENT);
btnAlpha[i].setTextColor(Color.GREEN);
btnAlpha[i].setText(Character.toString ((char)(j+i)));
btnAlpha[i].setOnClickListener(new View.OnClickListener(){
public void onClick(View v){
//Want to get the text from the current button.
开发者_如何学运维 btnAlpha[i].getText();
//But it gives error that "i" cannot be accessed.
}});
I get the error "cannot refer to a non-final variable inside an inner class defined in a different method". But I need to get the text at that right time. How to do it? Is there any other way to do it?
Button is a subclass of View, so the argument to onClick, v, is the Button being clicked. Try
public void onClick(View v) {
((Button) v).getText();
}
create a new variable final int x = i;
in the for loop and use x
in place of i
in the onClick
method
edit: actually im not sure this will work correctly. oops. Kype P's answer looks pretty good.
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