How to Show my DrawableRight image only after EditText is filled (or touched)?

Issue

I am having a Edittext , in which user enters their 10 digit mobile number. I want that when user completes entering the 10 digits , the drawableRight should be visible. How can i do this?

The DrawableRight is initially hidden/invisible.

Also a 2nd way can be that , when the Edittext is touched the drawable right can be seen.

Please help me in this.

    <LinearLayout
        android:id="@+id/list1mobile"
        android:layout_width="411dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="3dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:orientation="horizontal"
        android:padding="10dp"
        app:layout_constraintEnd_toEndOf="@+id/list1email"
        app:layout_constraintStart_toStartOf="@+id/list1email"
        app:layout_constraintTop_toBottomOf="@+id/list1email">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="start"
            android:orientation="vertical"
            android:paddingLeft="24dp"
            android:paddingStart="24dp">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="8dp"
                android:layout_marginTop="1dp"
                android:fontFamily="@font/avenibook"
                android:inputType="none"
                android:text="Mobile Number "
                android:textAllCaps="false"
                android:textColor="@color/blue"
                android:textSize="12sp"
                android:textStyle="bold" />

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="8dp"
                    android:layout_marginTop="1dp"
                    android:fontFamily="@font/avenibook"
                    android:inputType="none"
                    android:text="+91 "
                    android:textColor="@color/white"
                    android:textSize="16sp"
                    android:textStyle="bold" />

                <EditText
                    android:id="@+id/mobiledes"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="2dp"
                    android:layout_marginTop="1dp"
                    android:fontFamily="@font/avenirltsdoman"
                    android:inputType="number"
                    android:maxLength="10"
                    android:maxLines="1"
                    android:background="@null"
                    android:hint="Enter Mobile number"
                    android:textColorHint="#87888A"
                    android:textColor="@color/white"
                    android:textSize="16sp"
                    android:textStyle="bold"
                    android:drawableRight="@drawable/ic_verifybutton"
                    android:layout_marginStart="2dp"
                    android:drawableEnd="@drawable/ic_verifybutton"
                    android:drawablePadding="2dp"/>

            </LinearLayout>


        </LinearLayout>

Solution

Consider changing the input type to Phone in edittext. Change the position of R.drawable.your_icon to the first argument if you want it to be at the start.

editText.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        }
        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            //hides the drawable
            if(editText.getText().toString().length()!=10)
                editText.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
            //shows the drawable
            else
                editText.setCompoundDrawablesWithIntrinsicBounds(0,0,R.drawable.your_icon, 0);
        }
        @Override
        public void afterTextChanged(Editable s) {
        }
    });

Answered By - Aravind Varma