登陆（第一次登陆不再登陆，保存密码）

来源：互联网发布：数据清洗与整合平台编辑：程序博客网时间：2024/05/29 11:09
package com.example.zhangyifan1507a0728;import android.os.Bundle;import android.os.Handler;import android.app.Activity;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.widget.ImageView;public class MainActivity extends Activity {    private Animation zonghe;    private ImageView im;    int miao =3;    //handler方法    Handler handler = new Handler(){        public void handleMessage(android.os.Message msg) {            miao--;            if (miao == 0) {                //跳转                Intent intent = new Intent(MainActivity.this,Tiao.class);                startActivity(intent);            }            handler.sendEmptyMessageDelayed(1, 1000);        };    };    private SharedPreferences sha;    //移动通信    //1507A    //张一帆    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        im = (ImageView) findViewById(R.id.im);        //调用动画效果        zonghe = AnimationUtils.loadAnimation(MainActivity.this, R.anim.zonghe);        //让图片跟动画链接        im.startAnimation(zonghe);        //handler发送消息        handler.sendEmptyMessage(1);        sha = getSharedPreferences("文件", MODE_PRIVATE);        Editor edit = sha.edit();        boolean panduan = sha.getBoolean("deng", true);        if (panduan) {            edit.putBoolean("deng", false);            edit.commit();        }else {            Intent intent = new Intent(MainActivity.this,Tiao.class);            startActivity(intent);        }    }}
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