Pull to refresh ListView in Android

Pull to Refresh ListView in Android.

Pull to Refresh ListView in Android.

It will allow to user pulling down  and releasing from the top of the list.

Then come to basic coding part PulltoRefresh.
Here you can fine some better example for pulltorefresh. https://github.com/chrisbanes/Android-PullToRefresh

Custem ListView

pull_to_refresh_listview.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

       <com.pulltorefresh.mad.PullToRefreshView

        xmlns:ptr="http://schemas.android.com/apk/res/com.pulltorefresh.mad"

        android:id="@+id/pull_refresh_list"

        android:layout_height="fill_parent"

        android:layout_width="fill_parent"

        ptr:ptrMode="both"

       

        />

</LinearLayout>

Screen Shot

Activty code

package com.pulltorefresh.mad;

import java.util.Arrays;

import java.util.LinkedList;

import com.pulltorefresh.mad.PullToRefreshBase.Mode;

import com.pulltorefresh.mad.PullToRefreshBase.OnRefreshListener;

import android.app.ListActivity;

import android.os.AsyncTask;

import android.os.Bundle;

import android.text.format.DateUtils;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.ArrayAdapter;

import android.widget.ListView;

public class PullToRefreshListActivity extends ListActivity {

static final int MENU_MANUAL_REFRESH = 0;

static final int MENU_DISABLE_SCROLL = 1;

static final int MENU_SET_MODE = 2;

private LinkedList<String> mListItems;

private PullToRefreshView mPullRefreshListView;

private ArrayAdapter<String> mAdapter;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.pull_to_refresh_listview);

mPullRefreshListView = (PullToRefreshView) findViewById(R.id.pull_refresh_list);

// Set a listener to be invoked when the list should be refreshed.

mPullRefreshListView.setOnRefreshListener(new OnRefreshListener() {

@Override

public void onRefresh() {

mPullRefreshListView.setLastUpdatedLabel(DateUtils.formatDateTime(getApplicationContext(),

System.currentTimeMillis(), DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE

| DateUtils.FORMAT_ABBREV_ALL));

// Do work to refresh the list here.

new GetDataTask().execute();

}

});

ListView actualListView = mPullRefreshListView.getRefreshableView();

mListItems = new LinkedList<String>();

mListItems.addAll(Arrays.asList(mStrings));

mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);

// You can also just use setListAdapter(mAdapter)

actualListView.setAdapter(mAdapter);

}

private class GetDataTask extends AsyncTask<Void, Void, String[]> {

@Override

protected String[] doInBackground(Void... params) {

// Simulates a background job.

try {

Thread.sleep(2000);

} catch (InterruptedException e) {

}

return mStrings;

}

@Override

protected void onPostExecute(String[] result) {

mListItems.addFirst("Added after refresh..New Version Coming soon J-elly Bean");

mAdapter.notifyDataSetChanged();

// Call onRefreshComplete when the list has been refreshed.

mPullRefreshListView.onRefreshComplete();

super.onPostExecute(result);

}

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

menu.add(0, MENU_MANUAL_REFRESH, 0, "Manual Refresh");

menu.add(0, MENU_DISABLE_SCROLL, 1,

mPullRefreshListView.isDisableScrollingWhileRefreshing() ? "Enable Scrolling while Refreshing"

: "Disable Scrolling while Refreshing");

menu.add(0, MENU_SET_MODE, 0,

mPullRefreshListView.getMode() == Mode.BOTH ? "Change to MODE_PULL_DOWN"

: "Change to MODE_PULL_BOTH");

return super.onCreateOptionsMenu(menu);

}

@Override

public boolean onPrepareOptionsMenu(Menu menu) {

MenuItem disableItem = menu.findItem(MENU_DISABLE_SCROLL);

disableItem

.setTitle(mPullRefreshListView.isDisableScrollingWhileRefreshing() ? "Enable Scrolling while Refreshing"

: "Disable Scrolling while Refreshing");

MenuItem setModeItem = menu.findItem(MENU_SET_MODE);

setModeItem.setTitle(mPullRefreshListView.getMode() ==
Mode.BOTH ? "Change to MODE_PULL_DOWN"

: "Change to MODE_PULL_BOTH");

return super.onPrepareOptionsMenu(menu);

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case MENU_MANUAL_REFRESH:

new GetDataTask().execute();

mPullRefreshListView.setRefreshing(false);

break;

case MENU_DISABLE_SCROLL:

mPullRefreshListView.setDisableScrollingWhileRefreshing(!mPullRefreshListView

.isDisableScrollingWhileRefreshing());

break;

case MENU_SET_MODE:

mPullRefreshListView

.setMode(mPullRefreshListView.getMode() == Mode.BOTH ? Mode.PULL_DOWN_TO_REFRESH

: Mode.BOTH);

break;

}

return super.onOptionsItemSelected(item);

}

private String[] mStrings = { "A-stro", "B-ender", "C-upcake", "E-clair", "F-royo",

"G-ingerbread", "H-oneycomb", "I-ce Cream Sandwich ","Android Versions From iamvijayakumar.blogspot.com" };

}