Databases
StackOverflow2013
Postsdbo
POAsyncTask Android example
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAsyncTask Android example
    primarykey
    data
    text
    <p>I was reading about <code>AsyncTask</code>, and I tried the simple program below. But it does not seem to work. How can I make it work?</p> <pre><code>package com.test; import android.app.Activity; import android.os.AsyncTask; import android.os.Bundle; import android.provider.Settings.System; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.view.View.OnClickListener; public class AsyncTaskActivity extends Activity { Button btn; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); btn = (Button) findViewById(R.id.button1); btn.setOnClickListener((OnClickListener) this); } public void onClick(View view){ new LongOperation().execute(""); } private class LongOperation extends AsyncTask&lt;String, Void, String&gt; { @Override protected String doInBackground(String... params) { for(int i=0;i&lt;5;i++) { try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } TextView txt = (TextView) findViewById(R.id.output); txt.setText("Executed"); return null; } @Override protected void onPostExecute(String result) { } @Override protected void onPreExecute() { } @Override protected void onProgressUpdate(Void... values) { } } } </code></pre> <p>I am just trying to change the label after 5 seconds in the background process.</p> <p>This is my <strong>main.xml</strong>:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;ProgressBar android:id="@+id/progressBar" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:indeterminate="false" android:max="10" android:padding="10dip"&gt; &lt;/ProgressBar&gt; &lt;Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Start Progress" &gt; &lt;/Button&gt; &lt;TextView android:id="@+id/output" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Replace"/&gt; &lt;/LinearLayout&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USIgor Tyulkanov
    1. USFox
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAsyncTask Android example
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POAsyncTask Android example
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POAsyncTask Android example
      1. This table or related slice is empty.
      1. VTUpMod
    1. COalso you can show the progress by calling publishprogress() from the doInBackground() method.
      singulars
      1. POAsyncTask Android example
      1. USosum
    2. COhere is asynctask example [AsyncTask Example](http://samir-mangroliya.blogspot.in/p/android-asynctask-example.html)
      singulars
      1. POAsyncTask Android example
      1. USSamir Mangroliya
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload