i want to set the left margin of a specific listview item, but when i try to change it, the whole margin of listview is changed. I want to achieve the swipe left and delete of view (let's say the first one, see img1), by altering the margins of the specific view. Below you can find some code...
/*custom adapter*/
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) myContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.summary_list_item1, null);
convertView.setTag(position);
TextView tt1 = (TextView) convertView.findViewById(R.id.listText);
tt1.setText(myItems.get(position));
}
return convertView;
}
.
/*onTouchListener*/
lv.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
Log.i("onTouch", "Down");
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
historicX = event.getX();
historicY = event.getY();
/*keep view first time that is touched*/
if (removeView == null) {
removeView = v;
}
break;
case MotionEvent.ACTION_MOVE:
performSlideViewEffect(v, historicX, historicY, event.getX(), event.getY());
historicX = event.getX();
historicY = event.getY();
break;
}
}
.
public void performSlideViewEffect(View v,float historicX,float historicy,float x,float y) {
TextView tt1 = (TextView) v.findViewById(R.id.listText);
LinearLayout.MarginLayoutParams lp = (LinearLayout.MarginLayoutParams) v.getLayoutParams();
lp.setMarginStart(lp.leftMargin - Math.round(historicX - x));
v.setLayoutParams(lp);
v.invalidate();
}
.
/*Layout with the ListView*/
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#f4f4f4"
android:scrollbars="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="50sp"
android:layout_gravity="center_horizontal"
android:id="@+id/table"
android:padding="10sp"
android:textSize="20sp"
android:text=""
android:textStyle="bold|italic"/>
<TextView
android:layout_width="fill_parent"
android:layout_height="3sp"
android:background="#EFEFEF"
android:layout_margin="2sp" />
<ListView
android:id="@+id/summary_list"
android:layout_height="wrap_content"
android:layout_width="280sp"
android:background="#E7E7E7"
android:layout_marginTop="5sp"
android:layout_gravity="center_horizontal"
android:scrollbars="vertical">
</ListView>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/submit_order"
android:text="@string/SubmitOrder"
android:layout_gravity="center_horizontal"/>
.
/*summary_list_item1.xml*/
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/listText"
android:tag=""
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="14sp"
android:textColor="#ffffff"
android:layout_marginTop="2sp"
android:layout_marginBottom="1sp"
android:layout_marginLeft="3sp"
android:layout_marginRight="3sp"
android:padding="15sp"
android:background="#000000"
android:layout_gravity="center_vertical|center_horizontal" />
</LinearLayout>
The initial layout is the following, before i choose to move the first img1
But what i get is all the views to be moved...not only the "touched" one... img2
