package tonio.noa; import android.content.ClipData; import android.os.Build; import android.os.Bundle; import android.view.DragEvent; import android.view.MotionEvent; import android.view.View; import android.widget.ImageView; /** * Created by psyk on 15/01/18. */ public class TutorialScene3Activity extends MyPlayActivity implements View.OnTouchListener, View.OnDragListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tutorial3_display); findViewById(R.id.blue_rectangle31).setOnTouchListener(this); findViewById(R.id.blue_rectangle32).setOnTouchListener(this); findViewById(R.id.red_rectangle31).setOnTouchListener(this); findViewById(R.id.red_rectangle32).setOnTouchListener(this); findViewById(R.id.green_rectangle31).setOnTouchListener(this); findViewById(R.id.green_rectangle32).setOnTouchListener(this); findViewById(R.id.blue_rectangle31).setOnDragListener(this); findViewById(R.id.blue_rectangle32).setOnDragListener(this); findViewById(R.id.red_rectangle31).setOnDragListener(this); findViewById(R.id.red_rectangle32).setOnDragListener(this); findViewById(R.id.green_rectangle31).setOnDragListener(this); findViewById(R.id.green_rectangle32).setOnDragListener(this); } @Override public boolean onTouch(View view, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN) { View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view); ClipData data = ClipData.newPlainText("id", view.getResources().getResourceEntryName(view.getId())); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { view.startDragAndDrop(data, shadowBuilder, view, 0); } else { view.startDrag(data, shadowBuilder, view, 0); } return true; } else return false; } @Override public boolean onDrag(View v, DragEvent event) { switch (event.getAction()) { // signal for the start of a drag and drop operation case DragEvent.ACTION_DRAG_STARTED: // do nothing break; // the drag point has entered the bounding box of the View case DragEvent.ACTION_DRAG_ENTERED: // do nothing break; // the user has moved the drag shadow outside the bounding box of the View case DragEvent.ACTION_DRAG_EXITED: // do nothing break; // the drag and drop operation has concluded case DragEvent.ACTION_DRAG_ENDED: break; //drag shadow has been released,the drag point is within the bounding box of the View case DragEvent.ACTION_DROP: //handle the dragged view being dropped over a target view View view = (View) event.getLocalState(); if (v == findViewById(R.id.red_rectangle)) { //stop displaying the view where it was before it was dragged view.setVisibility(View.INVISIBLE); //view dragged item is being dropped on ImageView dropTarget = (ImageView) v; //view being dragged and dropped ImageView dropped = (ImageView) view; dropTarget.setBackgroundColor(dropped.getSolidColor()); bravoPage(v); } break; } return true; } @Override protected void next() { finish(); } }