[Android学习笔记]枚举与int的转换

package com.example.enumdemo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends Activity {
    
    /**
     * 定义枚举
     */
    public enum MyType {
        // 初始化枚举与int的关系
        NONE(0), TYPE_1(1), TYPE_2(2);

        private int value;
        MyType(int value) {
            this.value = value;
        }
    }

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

        // 枚举转int
        MyType type = MyType.TYPE_1;
        Toast.makeText(MainActivity.this,
                "MyType.TYPE_1 对应的int值:" + type.value, Toast.LENGTH_SHORT)
                .show();

        // int转枚举
        int typeValue = 2;
        Toast.makeText(MainActivity.this,
                "int值对应的枚举类型:" + MyType.values()[typeValue].toString(),
                Toast.LENGTH_SHORT).show();
    }
}