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Does anyone know how to code it to update the information from the Internet in my app with pulling down the screen? Like this

Thanks for answering!

android
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4 Answers4

1

Here is example implemantation :

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/container_items"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:background="@color/white"
        >

        <ListView
            android:id="@+id/list_recent"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            />

    </android.support.v4.widget.SwipeRefreshLayout>

Then in your class on create :

        mItemsContainer = (SwipeRefreshLayout) findViewById(R.id.container_items);
    mItemsContainer.setOnRefreshListener(this);

then some where in class :

   @Override
    public void onRefresh() {

       // after refresh code
    }
Canberk Çakmak
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0

What you need is Pull to Refresh. There are examples around. Check this out.

gvlachakis
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0

Use SwipeRefreshLayout like as

step1: make xml file

<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe_container"
android:layout_width="match_parent"
android:layout_height="match_parent">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:text="@string/hello_world"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:gravity="center"/>
</ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>

step2: in your activity do this

  @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
swipeLayout.setOnRefreshListener(this);
swipeLayout.setColorScheme(android.R.color.holo_blue_bright, 
        android.R.color.holo_green_light, 
        android.R.color.holo_orange_light, 
        android.R.color.holo_red_light);
}
@Override 
public void onRefresh() {
new Handler().postDelayed(new Runnable() {
    @Override public void run() {
        swipeLayout.setRefreshing(false);
    }
}, 5000);
}
Binesh Kumar
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0

Step 1: paste the code in your layout file

 <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_refresh_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">


        <ListView
            android:smoothScrollbar="true"
            android:id="@+id/mListView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="gone" />
    </android.support.v4.widget.SwipeRefreshLayout>

Step 2: Open your java file and add these lines

    public class MainActivity extends Activity implements SwipeRefreshLayout.OnRefreshListener
      private SwipeRefreshLayout swipeRefreshLayout;


         public void onCreate(Bundle savedStateInstances){
        ....
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
    swipeRefreshLayout.setOnRefreshListener(this);

        }

   @Override
    public void onRefresh() {


       //implement the logic you want to do when the pull down happen.

//after completion of your logic add this line.
 swipeRefreshLayout.setRefreshing(false);
    }
kashyap
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