Adding EditText dynamically by pressing a Button

Issue

I want to add an "ingredient" EditText view next to a "quantity" EditText view, pressing an "add" Button. Here's the starting layout code:

<LinearLayout android:id="@+id/ingredients_line_layout"
    android:layout_below="@+id/title_line_layout"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/layout_margin"
    android:layout_width="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <EditText
        android:id="@+id/ingredientsField"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_margin="@dimen/boxes_margin"
        android:hint="@string/ingredients"
        android:inputType="text" />

    <EditText
        android:hint="@string/quantity"
        android:id="@+id/quantityField"
        android:inputType="number"
        android:layout_height="match_parent"
        android:layout_margin="@dimen/boxes_margin"
        android:layout_width="wrap_content" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/add_ingredient_btn"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/boxes_margin"
        android:layout_width="wrap_content"
        android:text="@string/add"
        app:icon="@drawable/ic_add_ingr_btn" />

</LinearLayout>

How can I implement the onClick method for the button, in the corresponding activity?

Solution

1. You need to set OnClickListener for "add" button;
2. Create a view you want to add;
3. Find ingredients_line_layout layout and add your view to it.

See code below:

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.your_layout);
    View button = findViewById(R.id.add_ingredient_btn);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ViewGroup layout = (ViewGroup) findViewById(R.id.ingredients_line_layout);
            EditText ingredient = new EditText(YourActivity.this);
            ingredient.setHint(R.string.ingredients);
            layout.addView(ingredient, 1);
        }
    });
}

Answered By - Andrew Churilo