Android Drag and Drop Example
Hi Friends, Welcome to UandBlog.com again . Today I am going to discuss with Android Drag and Drop tutorial. Android drag/drop framework allows users to move data from one View to another in the current layout using a graphical drag and drop gesture. Drag and drop gesture is used across several android applications, especially in android games. When you start drag , you include both the data you are moving and metadata describing this data as part of the call to the system . let’s get started with the tutorial.
Read More
Android Image Slideshow Using ViewPager
How to Create Overflow Menus in Android
Prerequisites:
- JDK 7.0 or Above
- Android Studio 2.0
Steps to Follow:
Step 2: Select minimum API level 16 so that it can support maximum of Android Device available in the google play.
Step 3: Select Blank Activity and Give your layout xml name is activity_main and click finish.
Step 4: Inside activity_main.xml configure two Linearlayout with a button to drag and drop like below.
<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="match_parent"
android:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/bottomlinear"
android:layout_width="match_parent"
android:layout_height="400px"
android:gravity="center"
android:background="#E9967a"
android:orientation="vertical" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/one"
android:textSize="30sp"
android:text="Drag it" />
</LinearLayout>
<LinearLayout
android:id="@+id/bottomlinear1"
android:layout_width="match_parent"
android:layout_height="400px"
android:gravity="center"
android:background="#00CED1"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/drop"
android:textSize="30sp"
android:text="Drop Here" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/Total"
android:textSize="20sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/Sucess"
android:textSize="20sp" />
</LinearLayout>
</LinearLayout>
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity" >
<LinearLayout
android:id="@+id/bottomlinear"
android:layout_width="match_parent"
android:layout_height="400px"
android:gravity="center"
android:background="#E9967a"
android:orientation="vertical" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/one"
android:textSize="30sp"
android:text="Drag it" />
</LinearLayout>
<LinearLayout
android:id="@+id/bottomlinear1"
android:layout_width="match_parent"
android:layout_height="400px"
android:gravity="center"
android:background="#00CED1"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/drop"
android:textSize="30sp"
android:text="Drop Here" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/Total"
android:textSize="20sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/Sucess"
android:textSize="20sp" />
</LinearLayout>
</LinearLayout>
Step 5: Inside MainActivity.java write the following code.
public class MainActivity extends AppCompatActivity {
Button dragbutton;
LinearLayout dropbutton;
TextView tv,sucess;
int total,fail = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dragbutton = (Button) findViewById(R.id.one);
dropbutton = (LinearLayout) findViewById(R.id.bottomlinear);
tv = (TextView) findViewById(R.id.Total);
sucess = (TextView) findViewById(R.id.Sucess);
dropbutton.setOnDragListener(new View.OnDragListener(){
@Override
public boolean onDrag(View v, DragEvent event) {
// TODO Auto-generated method stub
final int action = event.getAction();
switch (action){
case DragEvent.ACTION_DRAG_STARTED:
// Executed after startDrag() is called.
break;
case DragEvent.ACTION_DRAG_EXITED:
break;
case DragEvent.ACTION_DRAG_ENTERED:
// Executed after the Drag Shadow enters the drop area
break;
case DragEvent.ACTION_DROP: {
//Executed when user drops the data
fail = fail + 1;
return (true);
}
case DragEvent.ACTION_DRAG_ENDED: {
total = total + 1;
int value = total - fail;
sucess.setText("Sucessful Drops:" + value);
tv.setText("Total Drops: " + total);
return (true);
}
default:
break;
}
return true;
}
});
dragbutton.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent arg1) {
// TODO Auto-generated method stub
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadow = new View.DragShadowBuilder(dragbutton);
v.startDrag(data, shadow, null, 0);
return false;
}
});
}
}
Now run the application and your sequence of output will be like below.Button dragbutton;
LinearLayout dropbutton;
TextView tv,sucess;
int total,fail = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dragbutton = (Button) findViewById(R.id.one);
dropbutton = (LinearLayout) findViewById(R.id.bottomlinear);
tv = (TextView) findViewById(R.id.Total);
sucess = (TextView) findViewById(R.id.Sucess);
dropbutton.setOnDragListener(new View.OnDragListener(){
@Override
public boolean onDrag(View v, DragEvent event) {
// TODO Auto-generated method stub
final int action = event.getAction();
switch (action){
case DragEvent.ACTION_DRAG_STARTED:
// Executed after startDrag() is called.
break;
case DragEvent.ACTION_DRAG_EXITED:
break;
case DragEvent.ACTION_DRAG_ENTERED:
// Executed after the Drag Shadow enters the drop area
break;
case DragEvent.ACTION_DROP: {
//Executed when user drops the data
fail = fail + 1;
return (true);
}
case DragEvent.ACTION_DRAG_ENDED: {
total = total + 1;
int value = total - fail;
sucess.setText("Sucessful Drops:" + value);
tv.setText("Total Drops: " + total);
return (true);
}
default:
break;
}
return true;
}
});
dragbutton.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent arg1) {
// TODO Auto-generated method stub
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadow = new View.DragShadowBuilder(dragbutton);
v.startDrag(data, shadow, null, 0);
return false;
}
});
}
}
Comments ( 0 )
Subscribe Latest Information
Categories
Most Popular Posts
How to Withdraw Money from ATM Machine 7steps 1057562 Views
How to Create Chat Application in Android Studio 139388 Views
Top 10 Best Android Games Under 100MB 86169 Views