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- package pe.edu.idat.semana11asynctask;
- import android.app.ProgressDialog;
- import android.os.AsyncTask;
- import android.os.Bundle;
- import android.support.constraint.ConstraintLayout;
- import android.support.design.widget.FloatingActionButton;
- import android.support.design.widget.Snackbar;
- import android.support.v7.app.AppCompatActivity;
- import android.support.v7.widget.Toolbar;
- import android.view.View;
- import android.view.Menu;
- import android.view.MenuItem;
- public class MainActivity extends AppCompatActivity {
- ConstraintLayout layout;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- layout = (ConstraintLayout)findViewById(R.id.milayout);
- Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
- setSupportActionBar(toolbar);
- FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
- fab.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- //TODO LLAMAR A LA CLASE ASYNCTASK
- new myasynctask().execute();
- }
- });
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.menu_main, menu);
- return true;
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // Handle action bar item clicks here. The action bar will
- // automatically handle clicks on the Home/Up button, so long
- // as you specify a parent activity in AndroidManifest.xml.
- int id = item.getItemId();
- //noinspection SimplifiableIfStatement
- if (id == R.id.action_settings) {
- return true;
- }
- return super.onOptionsItemSelected(item);
- }
- //TODO - MI CLASE ASYNCTASK
- public class myasynctask extends AsyncTask<String,String,String> {
- //TODO CTRL + O
- ProgressDialog Dialog = new ProgressDialog(MainActivity.this);
- //METODO PRINCIPAL
- @Override
- protected void onPreExecute() {
- Dialog.setMessage("Descargando Imagen...");
- Dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
- // Dialog.show(); Es para que no muestre el dialogo
- //TODO SNACKBAR
- Snackbar.make(layout, "Sincronizando...", Snackbar.LENGTH_LONG)
- .setAction("Action", null).show();
- }
- //METODO QUE EJECUTA EN HILO SECUNDARIO
- @Override
- protected void onPostExecute(String s) {
- //TODO CERRAR DIALOG Y ACTUALIZAR ID
- if (Dialog.isShowing()) Dialog.dismiss();
- //TODO SNACKBAR
- Snackbar.make(layout, "Terminamos", Snackbar.LENGTH_LONG)
- .setAction("Action", null).show();
- }
- //HILO SECUNDARIO CORRIENDO
- @Override
- protected String doInBackground(String... params) {
- try{
- Thread.sleep(10000);
- }catch (InterruptedException e){
- e.printStackTrace();
- }
- return null;
- }
- }
- }
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