title: android why this button is not clickable
body: <p>I don't know why the last two buttons is not clickable, I used the background (that i set to them ) many time and it works with another layouts, I am sure that the wrong is something like foucable or clickable but i don't know where exactly . </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:background="#FFFFFF"
      android:fillViewport="true" &gt;
  
      &lt;RelativeLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content" &gt;
  
          &lt;LinearLayout
              xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:background="#FFFFFF"
              android:orientation="vertical" &gt;
  
              &lt;RelativeLayout
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginBottom="20dip"
                  android:layout_marginLeft="10dip"
                  android:layout_marginRight="10dip"
                  android:layout_marginTop="20dip"
                  android:layout_weight="1" &gt;
  
                  &lt;Button
                      android:id="@+id/b_orderMeal_selectRestaurant"
                      android:layout_width="fill_parent"
                      android:layout_height="wrap_content"
                      android:layout_alignParentLeft="true"
                      android:layout_marginRight="30dip"
                      android:text="@string/b_selectRestaurant" /&gt;
  
                  &lt;ImageView
                      android:id="@+id/iv_orderMeal_isSelectRestaurant"
                      android:layout_width="25dp"
                      android:layout_height="25dp"
                      android:layout_alignParentRight="true"
                      android:contentDescription="@string/iv_isSelected"
                      android:src="@drawable/x" /&gt;
              &lt;/RelativeLayout&gt;
  
              &lt;RelativeLayout
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginBottom="20dip"
                  android:layout_marginLeft="10dip"
                  android:layout_marginRight="10dip"
                  android:layout_marginTop="20dip"
                  android:layout_weight="1" &gt;
  
                  &lt;Button
                      android:id="@+id/b_orderMeal_selectMealItems"
                      android:layout_width="fill_parent"
                      android:layout_height="wrap_content"
                      android:layout_alignParentLeft="true"
                      android:layout_marginRight="30dip"
                      android:text="@string/b_select_MealItems" /&gt;
  
                  &lt;ImageView
                      android:id="@+id/iv_orderMeal_isSelectMealItems"
                      android:layout_width="25dp"
                      android:layout_height="25dp"
                      android:layout_alignParentRight="true"
                      android:contentDescription="@string/iv_isSelected"
                      android:src="@drawable/x" /&gt;
              &lt;/RelativeLayout&gt;
  
              &lt;RelativeLayout
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginBottom="20dip"
                  android:layout_marginLeft="10dip"
                  android:layout_marginRight="10dip"
                  android:layout_marginTop="20dip"
                  android:layout_weight="1" &gt;
  
                  &lt;Button
                      android:id="@+id/b_orderMeal_selectPayMethod"
                      android:layout_width="fill_parent"
                      android:layout_height="wrap_content"
                      android:layout_alignParentLeft="true"
                      android:layout_marginRight="30dip"
                      android:text="@string/b_selectPayMethod" /&gt;
  
                  &lt;ImageView
                      android:id="@+id/iv_orderMeal_isSelectPayMethod"
                      android:layout_width="25dp"
                      android:layout_height="25dp"
                      android:layout_alignParentRight="true"
                      android:contentDescription="@string/iv_isSelected"
                      android:src="@drawable/x" /&gt;
              &lt;/RelativeLayout&gt;
  
              &lt;Button
                  android:id="@+id/b_orderMeal_checkBasket"
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginLeft="10dip"
                  android:layout_marginRight="40dip"
                  android:layout_marginTop="20dip"
                  android:layout_weight="1"
                  android:text="@string/b_check_basket" /&gt;
  
              &lt;TextView
                  android:id="@+id/tv_orderMeal_errorMessage"
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:layout_marginLeft="20dip"
                  android:layout_marginRight="20dip"
                  android:layout_marginTop="30dip"
                  android:layout_weight="1"
                  android:text="@string/tv_orderMeal_errorMessage"
                  android:textColor="#FF0000"
                  android:textSize="20dip"
                  android:textStyle="bold"
                  android:typeface="sans" /&gt;
          &lt;/LinearLayout&gt;
  
          &lt;LinearLayout
              android:layout_width="fill_parent"
              android:layout_height="wrap_content"
              android:layout_alignParentBottom="true"
              android:background="@drawable/bg_selector"
              android:orientation="horizontal" &gt;
  
              &lt;Button
                  android:id="@+id/b_orderMeal_send"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:layout_marginRight="4dip"
                  android:layout_weight="1"
                  android:background="@drawable/button_bg"
                  android:text="@string/b_send"
                  android:focusable="true"
                  android:clickable="true"
                  android:textColor="#FFFFFF" /&gt;
  
              &lt;Button
                  android:id="@+id/b_orderMeal_cancel"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:layout_marginLeft="4dip"
                  android:layout_weight="1"
                  android:background="@drawable/button_bg"
                  android:text="@string/b_cancel"
                  android:clickable="true"
                  android:textColor="#FFFFFF" /&gt;
          &lt;/LinearLayout&gt;
      &lt;/RelativeLayout&gt;
  
  &lt;/ScrollView&gt;
  </code></pre>
  
  <p>I am talking about the last two buttons</p>
  
  <h3>java </h3>
  
  <pre><code>b_send = (Button) findViewById(R.id.b_orderMeal_send);
          b_send.setOnClickListener(this);
          b_cancel = (Button) findViewById(R.id.b_orderMeal_cancel);
          b_cancel.setOnClickListener(this);
  </code></pre>
  
  <h3> on click </h3>
  
  <pre><code>@Override
      public void onClick(View v) {
        case R.id.b_orderMeal_cancel:
          Toast.makeText(this, "roma", Toast.LENGTH_LONG);
          break;          
      }
  </code></pre>
  
  <h3> note </h3>
  
  <p>the toast doesn't appear</p>