Android

The post shows a simple example displaying ASCII code and character on ListView.

package com.panayiotisgeorgiou.androidlistviewascii;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends ActionBarActivity {

ListView listAscii;
AsciiCode Asciis[];
ArrayAdapter asciiArrayAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listAscii = (ListView) findViewById(R.id.asciilist);
initAsciis();

asciiArrayAdapter = new ArrayAdapter(this,
android.R.layout.simple_list_item_1, android.R.id.text1, Asciis);
listAscii.setAdapter(asciiArrayAdapter);
}

private void initAsciis() {
Asciis = new AsciiCode[128];
for (int i = 0; i < 128; i++) {
Asciis[i] = new AsciiCode(i);
}
}

class AsciiCode{
int id;
char charAscii;

AsciiCode(int id){
this.id = id;
charAscii = (char)id;
}

public String toString(){
return
String.format(“%03d”, id)
+ ” /(hex) 0x” + String.format(“%02x”, id).toUpperCase()
+ ” : ” + charAscii;
}
}
}