Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Change TextView Size using Asynctask
package service.webservice.facilito.codigo.com.ejemplocfwebservices;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class ChangeTextViewSizeWithAsyncActivity extends AppCompatActivity {
Button boton;
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_change_text_view_size_with_async);
boton = (Button) findViewById(R.id.button_start_activity_change_text_view_size_with_async);
textView = (TextView) findViewById(R.id.textview_activity_change_text_view_size_with_async);
boton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new MyAsyncTask().execute(100);
}
});
}
// private class MyTask extends AsyncTask<String, String, String>{
private class MyAsyncTask extends AsyncTask<Integer, Integer, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(Integer... params) { // Recibimos un Integer
int max = params[0];
for(int i=1; i < max; i++){
//No podemos cambiar la interface en doInBackground pq es el hilo principal. Por eso podemos usar publishProgress dentro de el
//publishProgress("Numero: "+i);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
publishProgress(i);
}
return "Fin";
}
@Override
protected void onPostExecute(String result) { // result es el resultado de doInBackground
super.onPostExecute(result);
textView.append("\n"+result);
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate();
int contador = values[0]; // Agarramos el valor que recibimos
String texto = "Contador"+contador;
textView.setText(texto);
textView.setTextSize(contador);
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.