레이아웃 사용자정의 사용

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="이미지 변경" />

    <com.example.layout.Layout1
        android:id="@+id/layout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

    </com.example.layout.Layout1>

</LinearLayout>

* Layout1.java

public class Layout1 extends LinearLayout {

    ImageView imageView;
    TextView textView;
    TextView textView2;

    public Layout1(Context context) {
        super(context);

        init(context);
    }

    public Layout1(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);

        init(context);
    }

    public void init(Context context) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        inflater.inflate(R.layout.layout1, this, true);

        imageView = findViewById(R.id.imageView);
        textView = findViewById(R.id.textView);
        textView2 = findViewById(R.id.textView2);
    }

    public void setImage(int resId) {
        imageView.setImageResource(resId);
    }

    public void setName(String name) {
        textView.setText(name);
    }

    public void setMobile(String mobile) {
        textView2.setText(mobile);
    }

}

* Layout1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <!-- CardView는 Palette에서 라이브러리 다운로드 -->
    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardBackgroundColor="#FFFFFF"
        app:cardCornerRadius="10dp"
        app:cardElevation="5dp"
        app:cardUseCompatPadding="true">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="80dp"
            android:layout_height="80dp"
            app:srcCompat="@mipmap/ic_launcher" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginLeft="8dp"
            android:orientation="vertical">

            <TextView
                android:id="@+id/textView"
                android:textSize="30dp"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="0"
                android:text="이름" />

            <TextView
                android:id="@+id/textView2"
                android:textSize="30dp"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="0"
                android:text="전화번호" />

        </LinearLayout>

    </androidx.cardview.widget.CardView>

</LinearLayout>

* MainActivity.java

public class MainActivity extends AppCompatActivity {

    Layout1 layout1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        layout1 = findViewById(R.id.layout1);
        layout1.setImage(R.drawable.ic_launcher_background);
        layout1.setName("홍길동");
        layout1.setMobile("010-1000-1000");

        Button button = findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                layout1.setImage(R.drawable.ic_launcher_foreground);
            }
        });
    }
}

* activity_main.xml