Android grille-afficher l'élément glisser-déposer de réorganiser et de la grille de point de glisser et déposer n'importe où dans l'écran

oui, c'est possible. ici est agréable tutoriel.

dans ce tutoriel, ils utilisent le code suivant :-

Créer le dossier drawable dans votre répertoire res. Créer les suivants shape.xml fichier dans ce dossier.

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <stroke
        android:width="2dp"
        android:color="#FFFFFFFF" />

    <gradient
        android:angle="225"
        android:endColor="#DD2ECCFA"
        android:startColor="#DD000000" />

    <corners
        android:bottomLeftRadius="7dp"
        android:bottomRightRadius="7dp"
        android:topLeftRadius="7dp"
        android:topRightRadius="7dp" />

</shape> 

//Création de la shape_droptarget.xml fichier dans le dossier drawable.

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <stroke
        android:width="2dp"
        android:color="#FFFF0000" />

    <gradient
        android:angle="225"
        android:endColor="#DD2ECCFA"
        android:startColor="#DD000000" />

    <corners
        android:bottomLeftRadius="7dp"
        android:bottomRightRadius="7dp"
        android:topLeftRadius="7dp"
        android:topRightRadius="7dp" />

</shape>

Modifier la présentation de votre activité au code suivant.

<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="2"
android:columnWidth="300dp"
android:orientation="vertical"
android:rowCount="2"
android:stretchMode="columnWidth" >
<LinearLayout
android:id="@+id/topleft"
android:layout_width="160dp"
android:layout_height="200dp"
android:layout_column="0"
android:layout_row="0"
android:background="@drawable/shape" >
<ImageView
android:id="@+id/myimage1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="0"
android:layout_row="0"
android:src="@drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:id="@+id/topright"
android:layout_width="160dp"
android:layout_height="200dp"
android:layout_column="1"
android:layout_row="0"
android:background="@drawable/shape" >
<ImageView
android:id="@+id/myimage2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="0"
android:layout_row="0"
android:src="@drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:id="@+id/bottomleft"
android:layout_width="160dp"
android:layout_height="200dp"
android:layout_column="0"
android:layout_row="1"
android:background="@drawable/shape" >
<ImageView
android:id="@+id/myimage3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:id="@+id/bottomright"
android:layout_width="160dp"
android:layout_height="200dp"
android:layout_column="1"
android:layout_row="1"
android:background="@drawable/shape" >
<ImageView
android:id="@+id/myimage4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="0"
android:layout_row="0"
android:src="@drawable/ic_launcher" />
</LinearLayout>
</GridLayout>

Changer votre classe d'activité au code suivant.

public class DragActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findViewById(R.id.myimage1).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage2).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage3).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage4).setOnTouchListener(new MyTouchListener());
findViewById(R.id.topleft).setOnDragListener(new MyDragListener());
findViewById(R.id.topright).setOnDragListener(new MyDragListener());
findViewById(R.id.bottomleft).setOnDragListener(new MyDragListener());
findViewById(R.id.bottomright).setOnDragListener(new MyDragListener());
}
private final class MyTouchListener implements OnTouchListener {
public boolean onTouch(View view, MotionEvent motionEvent) {
if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
ClipData data = ClipData.newPlainText("", "");
DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view);
view.startDrag(data, shadowBuilder, view, 0);
view.setVisibility(View.INVISIBLE);
return true;
} else {
return false;
}
}
}
class MyDragListener implements OnDragListener {
Drawable enterShape = getResources().getDrawable(R.drawable.shape_droptarget);
Drawable normalShape = getResources().getDrawable(R.drawable.shape);
@Override
public boolean onDrag(View v, DragEvent event) {
int action = event.getAction();
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
//do nothing
break;
case DragEvent.ACTION_DRAG_ENTERED:
v.setBackgroundDrawable(enterShape);
break;
case DragEvent.ACTION_DRAG_EXITED:
v.setBackgroundDrawable(normalShape);
break;
case DragEvent.ACTION_DROP:
//Dropped, reassign View to ViewGroup
View view = (View) event.getLocalState();
ViewGroup owner = (ViewGroup) view.getParent();
owner.removeView(view);
LinearLayout container = (LinearLayout) v;
container.addView(view);
view.setVisibility(View.VISIBLE);
break;
case DragEvent.ACTION_DRAG_ENDED:
v.setBackgroundDrawable(normalShape);
default:
break;
}
return true;
}
}
}

Si vous démarrez cette activité, vous devriez être en mesure de faire glisser le ImageViews dans un autre récipient.