i have an activity like message box and i want to get jason response of a php page: my code is something like this but the app crashes! here are my codes ! i dont know what happens but in my stack just writes 'null'
public class MyJason {
private static final String LOGGER = null;
private String myurl;
public MyJason(String requesturl )
{
URL searhURL;
this.myurl=requesturl;
}
public JSONObject returnjason()
{
URL url = null;
try {
url = new URL(myurl);
} catch (MalformedURLException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
InputStream is = null;
URLConnection connection = null;
try {
connection = url.openConnection();
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
Log.d(LOGGER, "1.0");
String line;
StringBuilder builder = new StringBuilder();
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} //problem is here
Log.d(LOGGER, "2.0");
try {
while ((line = reader.readLine()) != null) {
builder.append(line);
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Log.d(LOGGER, "3.0");
String jSONString = builder.toString();
//after cutting off the junk, its ok
Log.d(LOGGER, "String is : "+jSONString);
JSONObject jSONObject = null;
try {
jSONObject = new JSONObject(jSONString);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} //whole json object
return jSONObject;
}
and the way i call them is :
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_message_box);
MyJason res=new MyJason("http://localhost/skyniaz/test.php");
TextView s=(TextView)findViewById(R.id.messagebox_text);
s.setText(res.returnjason().toString());
}
i edited my activity like this: is this correct????
s.setText(new MyJason().execute("http://10.0.2.2/skyniaz/test.php").get().getJSONArray("a").toString());
this is my php source
1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5); echo json_encode($arr); ?>
