安卓开发日记40

写进入界面跳转后端代码

package com.example.myexamproject;


import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.Window;

import com.example.myexamproject.R;

public class WelcomeActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_welcome);
        Handler handler = new Handler();
        //当计时结束,跳转至主界面
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent intent = new Intent(WelcomeActivity.this, LoginActivity.class);
                startActivity(intent);
                WelcomeActivity.this.finish();
            }
        }, 3000);
    }
}