新人刚学Android开发SplashActivity求助

2015-06-01 12:42:44 212 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

android studio for android learning (八)开机启动界面splashActivity 1.什么是Splash?（是否使用splash根据实际需求来，一般不用Splash）比较成熟一点的应用会在进入应用之前显示一个启动界面.这个启动界面或简单,或复杂,或简陋,或华丽,用意不同,风格也不同.2.splash有什么用？启动界面的本意是以友好用户界面来掩饰后台缓冲加载,让用户用平和等待的心情进入正常应用界面.但是因为启动界面是放在开始,在这个特殊的点上,可以做更多的事情,如应用宣传,显示版权阅读详情

boolean mFirst = isFirstEnter(SplashActivity.this, SplashActivity.this.getClass().getName()); 这一行报错
请问要怎么弄

下面SplashActivity.java的源码



package com.srtw.wx.app;



import android.app.Activity;

import android.content.Intent;

import android.content.SharedPreferences;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.app.ProgressDialog;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.content.Context;

import java.net.URL;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileOutputStream;

import java.io.InputStream;





import android.os.Message;

import android.util.Log;



import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;



import android.os.Environment;

import android.widget.Toast;



import java.io.IOException;



import com.lblll.yulingkeji.yxdapp.R;



import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONObject;

import java.io.File;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.AlertDialog.Builder;

import android.app.ProgressDialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.os.Handler;

import android.os.Message;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;



import android.app.Activity;

import android.content.Context;

import android.content.Intent;



public class SplashActivity extends Activity {



    private static final int GO_HOME = 1000;

    private final int UPDATA_NONEED = 0;

    private final int UPDATA_CLIENT = 1;

    private final int GET_UNDATAINFO_ERROR = 2;

    private final int SDCARD_NOMOUNTED = 3;

    private final int DOWN_ERROR = 4;



    boolean isFirstIn = true;

    private static final String SHAREDPREFERENCES_NAME = "first_pref";





    private static final String SHAREDPREFERENCES2_NAME = "my_pref";

    private final static int SWITCH_MAINACTIVITY = 1000;

    private final static int SWITCH_GUIDACTIVITY = 1001;





    /**

     * Handler:跳转到不同界面

     */

    private Handler mHandler = new Handler() {



        @Override

        public void handleMessage(Message msg) {

            switch (msg.what) {

                case GO_HOME:

                    goHome();

                    break;

                case UPDATA_CLIENT:

                    //对话框通知用户升级程序

                    downLoadApk();

                    break;

                case DOWN_ERROR:

                    //下载apk失败

                    Toast.makeText(getApplicationContext(), "下载新版本失败", Toast.LENGTH_SHORT).show();

                    break;

            }

            super.handleMessage(msg);

            switch (msg.what) {

                case SWITCH_MAINACTIVITY:

                    Intent mIntent = new Intent();

                    mIntent.setClass(SplashActivity.this, MyActivity.class);

                    SplashActivity.this.startActivity(mIntent);

                    SplashActivity.this.finish();

                    break;

                case SWITCH_GUIDACTIVITY:

                    mIntent = new Intent();

                    mIntent.setClass(SplashActivity.this, GuideActivity.class);

                    SplashActivity.this.startActivity(mIntent);

                    SplashActivity.this.finish();

                    break;

            }

            super.handleMessage(msg);

        }

    };





    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.splash);

        setContentView(R.layout.activity_splash);



        boolean mFirst = isFirstEnter(SplashActivity.this, SplashActivity.this.getClass().getName());

        if (mFirst)

            mHandler.sendEmptyMessageDelayed(SWITCH_GUIDACTIVITY, 5000);

        else

            mHandler.sendEmptyMessageDelayed(SWITCH_MAINACTIVITY, 5000);



        //检查网络

        if (chkNetwork()) {

            CheckAppVersion();

        } else {

            mHandler.sendEmptyMessageDelayed(GO_HOME, 3000);

        }



    }



    private void isFirstEnter(SplashActivity splashActivity, String name) {

        // 读取SharedPreferences中需要的数据

        // 使用SharedPreferences来记录程序的使用次数

        SharedPreferences preferences = getSharedPreferences(SHAREDPREFERENCES_NAME, MODE_PRIVATE);



        // 取得相应的值，如果没有该值，说明还未写入，用true作为默认值

        isFirstIn = preferences.getBoolean("isFirstIn", true);



        // 判断程序与第几次运行，如果是第一次运行则跳转到引导界面，否则跳转到主界面

        if (!isFirstIn) {

            // 使用Handler的postDelayed方法，3秒后执行跳转到MainActivity

            mHandler.sendEmptyMessageDelayed(GO_HOME, 5000);

        } else {

            //mHandler.sendEmptyMessageDelayed(GO_GUIDE, 3000);

        }

    }

接楼下

...全文

windows系统下，如何为comfyui如何安装triton 有些加速插件、模型在安装的时候，比如说sageattention的安装，就需要提前安装triton这个包，不过这个包有点特殊，windows下略微不好装，经常会装失败。 🎠如何安装之前也有人介绍过，要到github上找个wheel文件，找到对应的版本安装下就好了。问题是：https://github.com/woct0rdho/triton-windows/releases 这个git地址上，已经找不到wheel文件了... 阅读详情

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    private void init() {
        // 读取SharedPreferences中需要的数据
        // 使用SharedPreferences来记录程序的使用次数
        SharedPreferences preferences = getSharedPreferences(SHAREDPREFERENCES_NAME, MODE_PRIVATE);

        // 取得相应的值，如果没有该值，说明还未写入，用true作为默认值
        isFirstIn = preferences.getBoolean("isFirstIn", true);

        // 判断程序与第几次运行，如果是第一次运行则跳转到引导界面，否则跳转到主界面
        if (!isFirstIn) {
            // 使用Handler的postDelayed方法，3秒后执行跳转到MainActivity
            mHandler.sendEmptyMessageDelayed(GO_HOME, 5000);
        } else {
            //mHandler.sendEmptyMessageDelayed(GO_GUIDE, 3000);
        }

    }

    private void goHome() {
        Intent intent = new Intent(SplashActivity.this, MyActivity.class);
        SplashActivity.this.startActivity(intent);
        SplashActivity.this.finish();
    }


    //检查网络
    public boolean chkNetwork() {
        try {
            ConnectivityManager connectivityManager = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
            if (networkInfo != null && networkInfo.isAvailable()) {
                return true;
            } else {
                return false;
            }
        } catch (Exception e) {
            return false;
        }
    }


    public void CheckAppVersion() {
        try {
            getLocalVerInfo();
            Thread_getUpdVerInfo chkVer = new Thread_getUpdVerInfo();
            chkVer.start();
            chkVer.join();
            checkVersion();
        } catch (Exception e) {
            //tvMsg.setText(e.getMessage());
        }
    }

    public void getLocalVerInfo() {
        try {
            UpdateGlobal.localVerCode = this.getPackageManager().getPackageInfo(this.getPackageName(), 0).versionCode;
            UpdateGlobal.localVerName = this.getPackageManager().getPackageInfo(this.getPackageName(), 0).versionName;
        } catch (Exception e) {
            //tvMsg.setText(e.getMessage());
        }
    }

    /**
     * 检查更新版本
     */
    public void checkVersion() {
        //Toast.makeText(getApplicationContext(), UpdateGlobal.localVerCode+";"+ UpdateGlobal.serverVerCode, Toast.LENGTH_SHORT).show();

        TextView tvVersionsShow = (TextView) findViewById(R.id.tvVersionsShow);
        tvVersionsShow.append("" + UpdateGlobal.localVerName);

        if (UpdateGlobal.localVerCode < UpdateGlobal.serverVerCode) {
            //发现新版本，提示用户更新
            AlertDialog.Builder alert = new AlertDialog.Builder(this);
            alert.setTitle("软件升级")
                    .setMessage("发现新版本 " + UpdateGlobal.serverVerName + ",建议立即更新使用.")
                    .setPositiveButton("更新", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            //开启更新服务UpdateService
                            //这里为了把update更好模块化，可以传一些updateService依赖的值
                            //如布局ID，资源ID，动态获取的标题,这里以app_name为例
                            //Intent updateIntent =new Intent(SplashActivity.this, UpdateService.class);
                            //updateIntent.putExtra("titleId",R.string.app_name);
                            //startService(updateIntent);
                            Message msg = new Message();
                            msg.what = UPDATA_CLIENT;
                            mHandler.sendMessage(msg);
                        }
                    })
                    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                            mHandler.sendEmptyMessageDelayed(GO_HOME, 3000);
                        }
                    });
            alert.create().show();
        } else {
            //清理工作，略去
            //cheanUpdateFile(),文章后面我会附上代码
            mHandler.sendEmptyMessageDelayed(GO_HOME, 3000);
        }
    }

    //从服务器中下载APK
    protected void downLoadApk() {
        final ProgressDialog pd;    //进度条对话框
        pd = new ProgressDialog(this);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        pd.setMessage("正在下载更新");
        pd.show();
        new Thread() {
            @Override
            public void run() {
                try {
                    File file = DownLoadManager.getFileFromServer(UpdateGlobal.serverDownUrl, pd);
                    sleep(3000);
                    installApk(file);
                    pd.dismiss(); //结束掉进度条对话框
                } catch (Exception e) {
                    Message msg = new Message();
                    msg.what = DOWN_ERROR;
                    mHandler.sendMessage(msg);
                    e.printStackTrace();
                }
            }
        }.start();
    }

    //安装apk
    protected void installApk(File file) {
        Intent intent = new Intent();
        //执行动作
        intent.setAction(Intent.ACTION_VIEW);
        //执行的数据类型
        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
        startActivity(intent);
    }

    //根据传过来url创建文件
    private File getFile(String url) {
        File files = new File(Environment.getExternalStorageDirectory().getAbsoluteFile(), getFilePath(url));
        return files;
    }

    //截取出url后面的apk的文件名
    private String getFilePath(String url) {
        return url.substring(url.lastIndexOf("/"), url.length());
    }
}





//    @Override
//    protected void onCreate(Bundle savedInstanceState) {
//        super.onCreate(savedInstanceState);
//        setContentView(R.layout.activity_splash);
//
//        boolean mFirst = isFirstEnter(SplashActivity.this,SplashActivity.this.getClass().getName());
//        if(mFirst)
//            mHandler.sendEmptyMessageDelayed(SWITCH_GUIDACTIVITY,5000);
//        else
//            mHandler.sendEmptyMessageDelayed(SWITCH_MAINACTIVITY,5000);
//    }

    //****************************************************************
    // 判断应用是否初次加载，读取SharedPreferences中的guide_activity字段
    //****************************************************************
//    private static final String SHAREDPREFERENCES_NAME = "my_pref";
//    private static final String KEY_GUIDE_ACTIVITY = "guide_activity";
//    private boolean isFirstEnter(Context context,String className){
//        if(context==null || className==null||"".equalsIgnoreCase(className))return false;
//        String mResultStr = context.getSharedPreferences(SHAREDPREFERENCES_NAME, Context.MODE_WORLD_READABLE)
//                .getString(KEY_GUIDE_ACTIVITY, "");//取得所有类名 如 com.my.MainActivity
//        if(mResultStr.equalsIgnoreCase("false"))
//            return false;
//        else
//            return true;
//    }


    //*************************************************
    // Handler:跳转至不同页面
    //*************************************************
//    private final static int SWITCH_MAINACTIVITY = 1000;
//    private final static int SWITCH_GUIDACTIVITY = 1001;
//    public Handler mHandler = new Handler(){
//        public void handleMessage(Message msg) {
//            switch(msg.what){
//                case SWITCH_MAINACTIVITY:
//                    Intent mIntent = new Intent();
//                    mIntent.setClass(SplashActivity.this, MainActivity.class);
//                    SplashActivity.this.startActivity(mIntent);
//                    SplashActivity.this.finish();
//                    break;
//                case SWITCH_GUIDACTIVITY:
//                    mIntent = new Intent();
//                    mIntent.setClass(SplashActivity.this, GuideActivity.class);
//                    SplashActivity.this.startActivity(mIntent);
//                    SplashActivity.this.finish();
//                    break;
//            }
//            super.handleMessage(msg);
//        }

新人刚学Android开发SplashActivity求助

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