I am having trouble centering a gridview in the middle of the screen. Right now it looks like the screenshot at the bottom: notice the right edge has way more padding than the left one. Tried everything, including placing the gridview in a relativelayout and centering it.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridview"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:columnWidth="90dp"
android:numColumns="auto_fit"
android:verticalSpacing="16dp"
android:horizontalSpacing="16dp"
android:stretchMode="columnWidth"
android:longClickable="true"
android:gravity="center"
android:layout_margin="16dp"
/>
grid_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="90dp"
android:gravity="center"
android:orientation="vertical"
android:minHeight="90dp"
android:padding="16dp"
android:background="#EEEEEE">
<TextView
android:id="@+id/text_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="test text"
android:maxLines="2"
/>
</LinearLayout>
Screenshot of the issue: as you can see there is a lot of blank space on the right. enter image description here
RelativeLayout child view android:layout_centerInParent="true" use
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="90dp">
<TextView
android:id="@+id/text_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="text"
android:maxLines="2"
/>
</RelativeLayout>
If you want to keep same space then you have to set dynamic property of gridview like this.
/**
* Set gridView data according to device width.
*/
private void InitilizeGridLayout() {
Resources r = getResources();
float padding = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, r.getDisplayMetrics());
columnWidth = (int) ((getScreenWidth() - ((3 + 1) * padding)) / 3);
gvGallery.setNumColumns(3);
gvGallery.setColumnWidth(columnWidth);
gvGallery.setStretchMode(GridView.NO_STRETCH);
gvGallery.setPadding((int) padding, (int) padding, (int) padding, (int) padding);
gvGallery.setHorizontalSpacing((int) padding);
gvGallery.setVerticalSpacing((int) padding);
}
try this way you need to put GridView inside a RelativeLayout and just set GridView's layout_centerInParent to true..
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<GridView
android:id="@+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:numColumns="7"
android:columnWidth="40dp"
android:verticalSpacing="1dp"
android:horizontalSpacing="1dp"
android:paddingTop="2dp"
android:stretchMode="columnWidth"
android:background="#696969"
android:layout_centerInParent="true" />
</RelativeLayout>
**Please update your activity_main.xml**
<?xml version="1.0" encoding="utf-8"?>
<GridView android:layout_width="wrap_content"
android:id="@+id/grid1"
android:layout_height="match_parent"
android:columnWidth="130dp"
android:numColumns="auto_fit"
android:verticalSpacing="16dp"
android:horizontalSpacing="16dp"
android:stretchMode="columnWidth"
android:layout_centerInParent="true"
android:background="#000000"
android:longClickable="true"
android:gravity="center"
xmlns:android="http://schemas.android.com/apk/res/android"/>
**grid_item.xml**
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="90dp"
android:gravity="center"
android:orientation="vertical"
android:minHeight="90dp"
android:padding="16dp"
android:background="#EEEEEE">
<TextView
android:id="@+id/txtEmpName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:text="test text"
android:maxLines="2"
/>
</LinearLayout>
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GridViewAdapter gridViewAdapter = new GridViewAdapter(MainActivity.this);
GridView gridView = (GridView) findViewById(R.id.grid1);
gridView.setAdapter(gridViewAdapter);
}
}
public class GridViewAdapter extends BaseAdapter {
String [] empName = {"Krunal Patel","user11230","Alpa chauhan","loadjang","Aditya Vyas"};
Activity context;
public GridViewAdapter(Activity context) {
this.context = context;
}
@Override
public int getCount() {
return empName.length;
}
@Override
public Object getItem(int i) {
return empName[i];
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
LayoutInflater inflat = context.getLayoutInflater();
Holder holder;
if (view == null) {
view = inflat.inflate(R.layout.grid_adapter_layout, null, false);
holder = new Holder();
holder.txtEmpName = (TextView) view.findViewById(R.id.txtEmpName);
view.setTag(holder);
} else {
holder = (Holder) view.getTag();
}
holder.txtEmpName.setText(empName[i]);
return view;
}
class Holder {
TextView txtEmpName;
}
}
[![enter image description here][1]][1]
[1]: http://i.stack.imgur.com/yvslu.png
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