Iterate through multiple variables… here is a solution to the problem.
Iterate through multiple variables
I have 48 variables (TextView) like tv1, tv2, tv3, tv4… tv48。
I want to set a value for these variables with a for loop because I don’t want to write the same line 48 times.
Like this:
for (int i=1; i<49; i++)
{
"tv"+i.setText(i);
}
How to achieve this?
Solution
Initialize them like this:
TextView[] tv = new TextView[48];
You can then use for
loops to set the text in it as follows:
for(int i=0; i<48; i++)
{
tv[i].setText("your text");
}
Edit: In your XML file, provide the same ID for all TextViews. For example, tv0, tv1, tv2, etc
Initialize an array of strings, using these IDs as strings.
String ids[] = new String[48];
for(int i=0; i<48; i++)
{
ids[i] = "tv" + Integer.toString(i);
}
Now, to initialize TextView
the array of , do the following:
for(int i=0; i<48; i++)
{
int resID = getResources().getIdentifier(ids[i], "id", "your.package.name");
tv[i] = (TextView) findViewById(resID);
}