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How to set a Timeout for an AsyncTask in Android?
This example demonstrates how do I set a Timeout for an AsyncTask in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="16dp" tools:context=".MainActivity"> <EditText android:layout_marginTop="50dp" android:id="@+id/enterTime" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:background="@android:drawable/editbox_background" android:inputType="number"/> <Button android:id="@+id/btnRun" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Run Async task" android:layout_below="@+id/enterTime" android:layout_centerHorizontal="true" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.java
import androidx.appcompat.app.AppCompatActivity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Button button;
EditText editTextTime;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = findViewById(R.id.btnRun);
editTextTime = findViewById(R.id.enterTime);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AsyncTaskRunner runner = new AsyncTaskRunner();
String sleepTime = editTextTime.getText().toString();
runner.execute(sleepTime);
}
});
}
private class AsyncTaskRunner extends AsyncTask<String, String, String> {
ProgressDialog progressDialog;
@Override
protected String doInBackground(String... params) {
publishProgress("AsyncTask started...");
String resp;
try {
int time = Integer.parseInt(params[0]) * 1000;
Thread.sleep(time);
resp = "Slept for " + params[0] + " seconds";
}
catch (Exception e) {
e.printStackTrace();
resp = e.getMessage();
}
return resp;
}
@Override
protected void onPostExecute(String result) {
progressDialog.dismiss();
Toast.makeText(MainActivity.this, "AsyncTask Terminated", Toast.LENGTH_SHORT).show();
}
@Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(MainActivity.this, "ProgressDialog", "Wait for " + editTextTime.getText().toString() + " seconds");
}
@Override
protected void onProgressUpdate(String... text) {
Toast.makeText(MainActivity.this, "" + text[0], Toast.LENGTH_SHORT).show();
}
}
}Step 4 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run 
icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.
Updated on: 22-Nov-2019
826 Views
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