【鼠】安卓学习杂记（一）——Android延时执行任务

package com.example.administrator.myapplication;


import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toast.makeText(this, "延时3秒之前！", Toast.LENGTH_SHORT).show();
        //测试延时执行Java
        new Handler().postDelayed(new Runnable(){
            public void run() {
                //延时之后执行的任务
                toast();
            }
        }, 3000);//延时3秒

    }
    //延时之后执行的任务
    protected void toast(){
        Toast.makeText(this, "延时3秒之后！", Toast.LENGTH_SHORT).show();
    }
}