안드로이드 앱 최초 실행여부 확인하기

앱 최초 실행여부 확인하기

java)

package com.ghj.blog_031;
 
import android.app.Activity;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
 
public class MainActivity extends AppCompatActivity {
 
    //UI
    TextView txtFirst;
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        //UI
        txtFirst = (TextView)findViewById(R.id.txtFirst);
 
        txtFirst.setText(""+CheckAppFirstExecute());
    }
 
    //앱최초실행확인 (true - 최초실행)
    public boolean CheckAppFirstExecute(){
        SharedPreferences pref = getSharedPreferences("IsFirst" , Activity.MODE_PRIVATE);
        boolean isFirst = pref.getBoolean("isFirst", false);
        if(!isFirst){ //최초 실행시 true 저장
            SharedPreferences.Editor editor = pref.edit();
            editor.putBoolean("isFirst", true);
            editor.commit();
        }
 
        return !isFirst;
    }
}
 

xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:text="앱최초 실행여부 : "
            android:textSize="24dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <TextView
            android:id="@+id/txtFirst"
            android:textSize="24dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
 
</LinearLayout>
 

결과