If you want o move a view on Android, you should implemts OnTouchListener.

In your layout you can define a view, in this case we use ImageView. But You can use any view.
<?xml version="1.0" encoding="utf-8"?>
<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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity"
tools:showIn="@layout/activity_main"
android:id="@+id/content_main_relative_layout"
android:background="@android:color/holo_blue_light">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="@string/activity_main_move_the_view" />
<ImageView
android:id="@+id/content_main_image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@android:drawable/ic_dialog_info"/>
</RelativeLayout>
Now in your activity when you implement View.OnTouchListener, In this listener you have different events, we use two (ACTION_DOWN and ACTION_MOVE) but you can use anyone.
public class MainActivity extends AppCompatActivity implements View.OnTouchListener{
ImageView mImageView;
ViewGroup mRoot;
private int mXDelta;
private int mYDelta;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRoot = (RelativeLayout)findViewById(R.id.content_main_relative_layout);
mImageView = (ImageView) findViewById(R.id.content_main_image_view);
mImageView.setOnTouchListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
final int x = (int) event.getRawX();
final int y = (int) event.getRawY();
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
RelativeLayout.LayoutParams lParams = (RelativeLayout.LayoutParams) mImageView.getLayoutParams();
mXDelta = x - lParams.leftMargin;
mYDelta = y - lParams.topMargin;
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_DOWN:
case MotionEvent.ACTION_POINTER_UP:
break;
case MotionEvent.ACTION_MOVE:
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) mImageView.getLayoutParams();
layoutParams.leftMargin = x - mXDelta;
layoutParams.topMargin = y - mYDelta;
layoutParams.rightMargin = -250;
layoutParams.bottomMargin = -250;
mImageView.setLayoutParams(layoutParams);
break;
}
mRoot.invalidate();
return true;
}
}
Also you can check the complete code in GitHub