Question

How can i make a custom shaped clickable view or button in Android?

When I click , I want to avoid touching on an empty area .

please help. Thank you.

Answer 1

Interesting question. I tried some solutions and this is what I found that has the same result of what you are trying to achieve. The solution below resolves 2 problems:

1. Custom shape as you presented it
2. The top right side of the button shouldn’t be clickable

So this is the solution in 3 steps:

Step 1

Create two shapes.

• First simple rectangle shape for the button: shape_button_beer.xml

  <?xml version="1.0" encoding="utf-8"?>
  <shape xmlns:android="http://schemas.android.com/apk/res/android" >
  
      <gradient
          android:angle="90"
          android:endColor="#C5D9F4"
          android:startColor="#DCE5FD" />
  
      <corners
          android:bottomLeftRadius="5dp"
          android:bottomRightRadius="5dp"
          android:topLeftRadius="5dp" >
      </corners>
  
  </shape>
  

• Second shape is used as mask for the top right side of the button: shape_button_beer_mask.xml. It is simple circle with black solid color.

  <?xml version="1.0" encoding="utf-8"?>
  <shape xmlns:android="http://schemas.android.com/apk/res/android"
      android:shape="oval" >
  
      <solid android:color="#000000" />
  
  </shape>
  

Step 2

In your main layout add the button by next approach:

• RelativeLayout is the container of this custom button
• First LinearLayout is the blue button with beer icon and text inside
• Second ImageView is the mask above the blue button. And here comes dirty trick:
  1. Margins are negative to set the mask in the right place
  2. We define id to be able override on click (see step 3)
  3. android:soundEffectsEnabled="false" – such that user will not feel that he pressed on something.

The XML:

    <!-- Custom Button -->
    <RelativeLayout
        android:layout_width="120dp"
        android:layout_height="80dp" >

        <LinearLayout
            android:id="@+id/custom_buttom"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:background="@drawable/shape_button_beer" >

            <!-- Beer icon and all other stuff -->

            <ImageView
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_marginLeft="5dp"
                android:layout_marginTop="15dp"
                android:src="@drawable/beer_icon" />
        </LinearLayout>

        <ImageView
            android:id="@+id/do_nothing"
            android:layout_width="120dp"
            android:layout_height="100dp"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:layout_marginRight="-50dp"
            android:layout_marginTop="-50dp"
            android:background="@drawable/shape_button_beer_mask"
            android:soundEffectsEnabled="false" >
        </ImageView>
    </RelativeLayout>
    <!-- End Custom Button -->

Step 3

In your main activity you define on click events for both: button and the mask as follow:

LinearLayout customButton = (LinearLayout) findViewById(R.id.custom_buttom);
customButton.setOnClickListener(new View.OnClickListener()
{
    @Override
    public void onClick(View arg0)
    {
        Toast.makeText(getApplicationContext(), "Clicked", Toast.LENGTH_SHORT).show();
    }
});

// Mask on click will do nothing
ImageView doNothing = (ImageView) findViewById(R.id.do_nothing);
doNothing.setOnClickListener(new View.OnClickListener()
{
    @Override
    public void onClick(View arg0)
    {
        // DO NOTHING
    }
});

That’s it. I know that is not a perfect solution but in your described use case it could help.
I have tested it on my mobile and this is how it looks when you click on the blue area and nothing will happen on other areas:

• 

Hope it helped somehow 🙂