Typical way to reference android control is something like this:
TextView tv = (TextView)findViewById(R.id.tv);
Where R.id.tv is integer referencing my xml control.
The thing is I would like to make reference using string "R.id.tv". Is that possible?
Let's say I have multiple controls:
tv1,
tv2,
tv3,
tv4,
tv5,
How would I put this into some sort of loop and interate through controls. I am thinking I would use loop counter to reference different controls. How's that to be done? Thanks.
One approach is to put the ids into an array and reference by subscript.
int[] ids = { R.id.tv1, R.id.tv2 /* etc. */ };
for (int i = 0; i < ids.length; ++i) {
TextView tv = (TextView)findViewById(ids[i]);
}
Try next
private int getIdResourceByName(String aString)
{
String packageName = "com.myProject.myPackage"; // set your package name here
int resId = getResources().getIdentifier(aString, "id", packageName);
return resId;
}
...
for (int i = 1; i<=5; i++) {
TextView tv = (TextView) findViewById(getIdResourceByName("tv" + Integer.toString(i)));
...
}
Have a look at this question:
I don't understand why you'd want to do this, it's pretty ugly, inefficient, and likely to cause maintenance issues and bugs.
Why not use a collection (e.g. ArrayList) to store references to all the controls?
