[kotlin] 안드로이드 당겨서 새로고침 기능 만들기

SwipeRefreshLayout을 사용하여 당겨서 새로고침 기능 구현하기

 

 build.gradle 파일에 설정 추가후 Sync Now 버튼을 클릭하여 의존성 설치

dependencies {
    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
}

사용할 간단 샘플예제 화면 미리보기

당겨서 놓으면 새로고침 처리

<activity_main.xml>

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
        android:id="@+id/swipe"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="홈 화면" />

    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

<MainActivity.java>

package cbw.example.myapplication

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.TextView
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        var swipe = findViewById<SwipeRefreshLayout>(R.id.swipe)
        swipe.setOnRefreshListener {
            var textView = findViewById<TextView>(R.id.textView)
            textView.setText("새로고침 테스트 완료")
            swipe.isRefreshing = false
        }
    }
}