I am trying to scroll item to the middle position of the screen after selecting it.I have used Horizontalscrollview and LinearLayout inside it to add item. I show in the XML XML ``` <LinearLayout android:id="@+id/horizontalbar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@color/tlbackground" android:baselineAligned=…

Android : Locating the item at center position of the screen after selecting it ,In the horizontalscrollview

android, center, horizontalscrollview, scroll

Solution

After long try , I have got it with this

for (int i = 0; i < 20; i++) {
    final Button b = new Button(this);
    b.setText("t" + i);
    b.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
       int scrollX = (b.getLeft() - (screenWidth / 2)) + (b.getWidth() / 2);
       hsl.smoothScrollTo(scrollX, 0);
    }
});

ll.addView(b);
}

Problem

I am trying to scroll item to the middle position of the screen after selecting it.I have used Horizontalscrollview and LinearLayout inside it to add item. I show in the XML XML ``` <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:orientation="vertical" tools:context=".MainActivity" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_above="@+id/bottom" android:orientation="vertical" > <HorizontalScrollView android:id="@+id/scrollView" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/updown" android:layout_weight="0.8" android:fadingEdgeLength="0dp" > <LinearLayout android:id="@+id/horizontalbar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@color/tlbackground" android:baselineAligned="true" android:orientation="horizontal" > </LinearLayout> </HorizontalScrollView> </LinearLayout> </RelativeLayout> ``` Class ``` public class MainActivity extends FragmentActivity implements ActionBar.TabListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); hsl = (HorizontalScrollView) findViewById(R.id.scrollView); LinearLayout l1 = (LinearLayout)findViewById(R.id.horizontalbar); for(int i = 0; i < 20; i++) { Button b = new Button(this); b.setText("t"+i); ll.addView(b); } } } ``` I want something like in figure before click after click How can I Scroll that selected item to the middle in HorizontalScrollview?

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