自动更新检测，结合网上资料编写

来源：互联网发布：oracle查看数据库编码编辑：程序博客网时间：2024/04/28 12:11

import android.app.Dialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.content.Intent;import android.content.pm.ActivityInfo;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.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AlertDialog;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.text.TextUtils;import android.util.Log;import android.util.Xml;import android.view.View;import android.view.Menu;import android.view.MenuItem;import android.view.WindowManager;import android.view.animation.AlphaAnimation;import android.widget.CheckBox;import android.widget.EditText;import android.widget.RelativeLayout;import android.widget.TextView;import android.widget.Toast;import org.json.JSONArray;import org.json.JSONObject;import org.xmlpull.v1.XmlPullParser;import org.xmlpull.v1.XmlPullParserException;import java.io.BufferedInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.ProtocolException;import java.net.URL;import java.net.URLEncoder;import java.util.Map;public class MainActivity extends AppCompatActivity {    //常量定义    public static final int UNKNOWN_ERROR = 99;    public static final int GET_INFO_SUCCESS = 100;    public static final int SERVER_ERROR = 101;    public static final int SERVER_URL_ERROR = 102;    public static final int PROTOCOL_ERROR = 103;    public static final int IO_ERROR = 104;    public static final int XML_PARSER_ERROR = 105;    public static final int DOWN_ERROR = 106;    public static final String TAG = "SplashActivity";    //获取的服务器端的更新信息    UpdateInfo updateinfo;    //下载进度条    private ProgressDialog pBar;    //显示版本号的tv控件    private TextView tv_splash_version;    //布局控件    private RelativeLayout r1_splash;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        ActivityManager.getInstance().addActivity(this);//将当前Activity加入到管理器，用于退出使用        setContentView(R.layout.activity_main);        //设置全屏模式        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);        r1_splash = (RelativeLayout)findViewById(R.id.r1_splash);        tv_splash_version = (TextView)findViewById(R.id.tv_splash_version);        tv_splash_version.setText("版本号：" + getVersion());        //显示渐进动画        AlphaAnimation aa = new AlphaAnimation(0.3f, 1.0f);        aa.setDuration(2000);        r1_splash.startAnimation(aa);        //检查更新        new Thread(new checkUpdate()) {        }.start();    }    @Override    protected void onResume() {        /**         * 设置为横屏         */        if(getRequestedOrientation()!= ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE){            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);        }        super.onResume();    }    //获取当前应用程序的版本号    private String getVersion() {        String version = "";        //获取系统包管理器        PackageManager pm = this.getPackageManager();        try {            PackageInfo info = pm.getPackageInfo(getPackageName(), 0);            version = info.versionName;        } catch (Exception e) {            e.printStackTrace();        }        return version;    }    /**     * 消息处理器     */    private Handler handler = new Handler() {        public void handleMessage(Message msg) {            switch (msg.what) {                case GET_INFO_SUCCESS:                    String serverVersion = updateinfo.getVersion();                    String currentVersion = getVersion();                    if (currentVersion.equals(serverVersion)) {                        Log.i(TAG, "版本号相同无需升级，直接进入主界面");                        LoginMain();                    }else {                        Log.i(TAG, "版本号不同需升级，显示升级对话框");                        showUpdateDialog();                    }                    break;                case SERVER_ERROR:                    Toast.makeText(getApplicationContext(), "服务器内部异常", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case SERVER_URL_ERROR:                    Toast.makeText(getApplicationContext(), "服务器路径错误", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case PROTOCOL_ERROR:                    Toast.makeText(getApplicationContext(), "协议错误", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case XML_PARSER_ERROR:                    Toast.makeText(getApplicationContext(), "XML解析错误", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case IO_ERROR:                    Toast.makeText(getApplicationContext(), "I/O错误", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case UNKNOWN_ERROR:                    Toast.makeText(getApplicationContext(), "未知错误", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;                case DOWN_ERROR:                    Toast.makeText(getApplicationContext(), "下载失败", Toast.LENGTH_SHORT).show();                    LoginMain();                    break;            }        }    };    /**     * 检查更新     */    private class checkUpdate implements Runnable {        public void run() {            long startTime = System.currentTimeMillis();            long endTime = startTime;            Message msg = Message.obtain();            try {                //获取服务器更新地址                String serverurl = getResources().getString(R.string.serverurl);                URL url = new URL(serverurl);                HttpURLConnection conn = (HttpURLConnection)url.openConnection();                conn.setRequestMethod("GET");                conn.setConnectTimeout(5000);                int code = conn.getResponseCode();                if (code == 200) {                    //success                    InputStream is = conn.getInputStream();                    //解析出更新信息                    updateinfo = UpdateInfoParser.getUpdateInfo(is);                    endTime = System.currentTimeMillis();                    long time = endTime - startTime;                    if (time < 2000) {                        try {                            Thread.sleep(2000 - time);                        } catch (InterruptedException e) {                            e.printStackTrace();                        }                    }                    msg.what = GET_INFO_SUCCESS;                    handler.sendMessage(msg);                } else {                    //服务器错误                    msg.what = SERVER_ERROR;                    handler.sendMessage(msg);                    endTime = System.currentTimeMillis();                    long time = endTime - startTime;                    if (time < 2000) {                        try {                            Thread.sleep(2000 - time);                        } catch (InterruptedException e) {                            e.printStackTrace();                        }                    }                }            } catch (MalformedURLException e) {                msg.what = SERVER_URL_ERROR;                handler.sendMessage(msg);                e.printStackTrace();            } catch (ProtocolException e) {                msg.what = PROTOCOL_ERROR;                handler.sendMessage(msg);                e.printStackTrace();            } catch (IOException e) {                msg.what = IO_ERROR;                handler.sendMessage(msg);                e.printStackTrace();            } catch (XmlPullParserException e) {                msg.what = XML_PARSER_ERROR;                handler.sendMessage(msg);                e.printStackTrace();            } catch (Exception e) {                msg.what = UNKNOWN_ERROR;                handler.sendMessage(msg);                e.printStackTrace();            }        }    }    /**     * 显示升级提示对话框     */    protected void showUpdateDialog() {        //创建对话框构造器        AlertDialog.Builder builder = new AlertDialog.Builder(this);        //设置对话框图标        //builder.setIcon(getResources().getDrawable(R.drawable.notification));        //设置对话框标题        builder.setTitle("升级提示");        //设置更新信息为对话框提示内容        builder.setMessage(updateinfo.getDesc());        //设置升级按钮及响应事件        builder.setPositiveButton("升级", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                downLoadApk();            }        });        //设置取消按钮及响应事件        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {            }        });        //创建并显示对话框        builder.create().show();    }    public static File getFileFromServer(String path, ProgressDialog pd) throws Exception{        //如果相等的话表示当前的sdcard挂载在手机上并且是可用的        if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){            URL url = new URL(path);            HttpURLConnection conn =  (HttpURLConnection) url.openConnection();            conn.setConnectTimeout(5000);            //获取到文件的大小            pd.setMax(conn.getContentLength());            InputStream is = conn.getInputStream();            File file = new File(Environment.getExternalStorageDirectory(), "update.apk");            FileOutputStream fos = new FileOutputStream(file);            BufferedInputStream bis = new BufferedInputStream(is);            byte[] buffer = new byte[1024];            int len ;            int total=0;            while((len =bis.read(buffer))!=-1){                fos.write(buffer, 0, len);                total+= len;                //获取当前下载量                pd.setProgress(total);            }            fos.close();            bis.close();            is.close();            return file;        }        else{            return null;        }    }    /* * 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 = getFileFromServer(updateinfo.getApkurl(), 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;                    handler.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);    }    /* * 进入程序的主界面 */    private void LoginMain(){        Intent intent = new Intent(this,Login.class);        startActivity(intent);        //结束掉当前的activity        this.finish();    }}

/** * Created by cangyun on 2016-09-21. */public class UpdateInfo {    //服务器端版本号    private String version;    //服务器端升级提示    private String desc;    //服务器端apk下载地址    private String apkurl;    public String getVersion() {        return version;    }    public void setVersion(String version) {        this.version = version;    }    public String getDesc() {        return desc;    }    public void setDesc(String desc) {        this.desc = desc;    }    public String getApkurl() {        return apkurl;    }    public void setApkurl(String apkurl) {        this.apkurl = apkurl;    }}

import android.util.Xml;import org.xmlpull.v1.XmlPullParser;import org.xmlpull.v1.XmlPullParserException;import java.io.IOException;import java.io.InputStream;/** * Created by cangyun on 2016-09-21. */public class UpdateInfoParser {    /**     *解析一个utf-8格式的xml输入流，返回一个UpdateInfo对象     * XmlPullParser解析bug参考解决：http://blog.csdn.net/nxh_love/article/details/7109762     * @param is     * @return UpdateInfo对象     * @throws XmlPullParserException     * @throws IOException     */    public static UpdateInfo getUpdateInfo(InputStream is) throws XmlPullParserException, IOException {        UpdateInfo info = new UpdateInfo();        //获取一个pull解析的实例        XmlPullParser parser = Xml.newPullParser();        //解析xml        parser.setInput(is, "UTF-8");        parser.nextTag();        int type = parser.getEventType();        while (parser.nextTag() == XmlPullParser.START_TAG) {            String tag = parser.getName();            String text = parser.nextText();            if (parser.getEventType() != XmlPullParser.END_TAG) {                parser.nextTag();            }            if (tag.equals("ver")) {                info.setVersion(text);            } else if (tag.equals("desc")) {                info.setDesc(text);            } else if (tag.equals("apkurl")) {                info.setApkurl(text);            }        }        return info;    }}

update.xml

<?xml version="1.0" encoding="utf-8"?><info>    <version>1.1</version>    <apkurl>http://www.xxxxxx.com:8080/xx/xx-debug.apk</apkurl>    <desc>检测到最新版本，请及时更新！</desc></info>

AndroidManifest

android:versionName="1.1"

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

0 0