package com.example.androidswiperefresh;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.support.v7.app.ActionBarActivity;
import android.widget.TextView;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
public class MainActivity extends ActionBarActivity {
SwipeRefreshLayout swipeRefreshLayout;
TextView textInfo;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textInfo = (TextView)findViewById(R.id.info);
swipeRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swipelayout);
swipeRefreshLayout.setOnRefreshListener(onRefreshListener);
swipeRefreshLayout.setColorSchemeColors(
Color.RED, Color.GREEN, Color.BLUE, Color.CYAN);
}
OnRefreshListener onRefreshListener = new OnRefreshListener(){
@Override
public void onRefresh() {
textInfo.setText("WAIT: doing something");
//simulate doing something
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
swipeRefreshLayout.setRefreshing(false);
textInfo.setText("DONE");
}
}, 2000);
}};
}
Use the same layout file in last exercise of SwipeRefreshLayout example.
HI,
ReplyDeleteI am getting below exception.
extending the activity with ActionbarActivity class
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.widget.SwipeRefreshLayout.setOnRefreshListener(android.support.v4.widget.SwipeRefreshLayout$OnRefreshListener)' on a null object reference
please help me out.