Swipe to refresh Android Activity
In this tutorial, we will create swipe-to-refresh functionality in the Android. For this purpose, SwipeRefreshLayout widget should be used.
The instance of SwipeRefreshLayout adds an OnRefreshListener method and implements the code logic that will load on refresh. The vertical swipe displays a distinctive progress bar when the user swipes. The progress bar call setRefreshing(true) when it shows the progress animation or calls setRefreshing(false) to cancel.
Swipe to refresh Android Activity Example
In the activity_main.xml file, implement SwipeRefreshLayout widget.
activity_main.xml
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/refreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="example.javatpoint.com.swiperefreshlayout.MainActivity">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="229dp"
android:text="Hello World!"
android:textSize="18dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</RelativeLayout>
</android.support.v4.widget.SwipeRefreshLayout>
Create an activity MainActivity.java and add the following code. In this class, we are checking the network connectivity onRefresh() the swipe.
MainActivity.java
import android.content.Context;
import android.graphics.Color;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
SwipeRefreshLayout swipeRefreshLayout;
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
swipeRefreshLayout = findViewById(R.id.refreshLayout);
textView = findViewById(R.id.textView);
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
swipeRefreshLayout.setRefreshing(false);
//your code on swipe refresh
//we are checking networking connectivity
boolean connection=isNetworkAvailable();
if(connection){
textView.setText("internet connect");
textView.setTextColor(Color.GREEN);
}
else{
textView.setText("not connected");
textView.setTextColor(Color.RED);
}
}
});
swipeRefreshLayout.setColorSchemeColors(Color.YELLOW);
}
public boolean isNetworkAvailable(){
ConnectivityManager connectivityManager=(ConnectivityManager) this.getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo=connectivityManager.getActiveNetworkInfo();
return networkInfo !=null;
}
}
Required Permission
Add the uses-permission in AndroidMenifest.xml file. The below-given permission is used to access network connectivity.
