一句代码实现Android版本更新功能

时间 2019-12-05

原文原文链接

自从友盟关闭了版本更新功能后，安卓的版本更新只能本身来撸了，结合以前友盟的版本更新，其实实现起来也简单，这里简单说说版本更新实现的思路：android

第一步，经过接口获取更新信息（版本号、更新内容、apk下载地址、是否强制更新）git
第二步，经过接口拿到的版本号和本地的版本号进行比较，若是拿到的版本号比本地的版本号大，那就进行版本升级github
第三步，版本升级分为三种状况：
非wifi状况下，弹出版本更新提示框，用户点击“当即升级”按钮开始下载apk，下载完成后提示安装。wifi状况下，直接后台下载apk，下载完后弹出版本更新提示框，用户点击“当即安装”按钮开始安装apk。网络

三、强制更新为true的时候，不管是否wifi状况下，都是应该弹出更新提示框，用户点击“当即升级”按钮开始下载升级，提示框不能取消，点击“关闭”按钮直接退出app。app

基本思路就是上面那样，下面来看看最鸡冻人心的环节，如何在本身的app加入版本更新功能。ide

BaseAndroid.checkUpdate(MainActivity.this, 2,
"http://f5.market.mi-img.com/download/AppStore/0f4a347f5ce5a7e01315dda1ec35944fa56431d44/luo.footprint.apk",
"更新了XXXn修复OOO", false);优化

固然啦，前提是你得依赖了个人base库：
https://github.com/LuoGuoXin/...
哈哈，你也能够直接复制版本更新的部分过去就行啦，再根据本身需求修改下，有什么好的建议记得评论，由于那个功能我也还没去优化的。ui

那下面进行代码分析哈：首先是主方法this

/**
     * 版本更新
     *
     * @param context
     * @param versionCode   版本号
     * @param url           apk下载地址
     * @param updateMessage 更新内容
     * @param isForced      是否强制更新
     */
    public static void checkUpdate(Context context, int versionCode, String url, String updateMessage, boolean isForced) {
        if (versionCode > UpdateManager.getInstance().getVersionCode(context)) {
            int type = 0;//更新方式，0：引导更新，1：安装更新，2：强制更新
            if (UpdateManager.getInstance().isWifi(context)) {
                type = 1;
            }
            if (isForced) {
                type = 2;
            }

            //检测是否已下载
            String downLoadPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/downloads/";
            File dir = new File(downLoadPath);
            if (!dir.exists()) {
                dir.mkdir();
            }
            String fileName = url.substring(url.lastIndexOf("/") + 1, url.length());
            if (fileName == null && TextUtils.isEmpty(fileName) && !fileName.contains(".apk")) {
                fileName = context.getPackageName() + ".apk";
            }
            File file = new File(downLoadPath + fileName);

            //设置参数
            UpdateManager.getInstance().setType(type).setUrl(url).setUpdateMessage(updateMessage).setFileName(fileName).setIsDownload(file.exists());
            if (type == 1 && !file.exists()) {
                UpdateManager.getInstance().downloadFile(context);
            } else {
                UpdateManager.getInstance().showDialog(context);
            }
        }
        }

而后就是UpdateManager的封装啦，本身看代码吧，有什么优化点评论下，我去修改哈。url

/**
 * 版本更新
 */

public class UpdateManager {
    private String downLoadPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/downloads/";
    private int type = 0;//更新方式，0：引导更新，1：安装更新，2：强制更新
    private String url = "";//apk下载地址
    private String updateMessage = "";//更新内容
    private String fileName = null;//文件名
    private boolean isDownload = false;//是否下载
    private NotificationManager mNotifyManager;
    private NotificationCompat.Builder mBuilder;
    private BaseDialog dialog;
    private ProgressDialog progressDialog;

    public static UpdateManager updateManager;

    public static UpdateManager getInstance() {
        if (updateManager == null) {
            updateManager = new UpdateManager();
        }
        return updateManager;
    }

    private UpdateManager() {

    }

    /**
     * 弹出版本更新提示框
     */
    public void showDialog(final Context context) {
        String title = "";
        String left = "";
        boolean cancelable = true;
        if (type == 1 | isDownload) {
            title = "安装新版本";
            left = "当即安装";
        } else {
            title = "发现新版本";
            left = "当即更新";
        }
        if (type == 2) {
            cancelable = false;
        }
        dialog = new BaseDialog.Builder(context).setTitle(title).setMessage(updateMessage).setCancelable(cancelable)
                .setLeftClick(left, new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        dialog.dismiss();
                        if (type == 1 | isDownload) {
                            installApk(context, new File(downLoadPath, fileName));
                        } else {
                            if (url != null && !TextUtils.isEmpty(url)) {
                                if (type == 2) {
                                    createProgress(context);
                                } else {
                                    createNotification(context);
                                }
                                downloadFile(context);
                            } else {
                                Toast.makeText(context, "下载地址错误", Toast.LENGTH_SHORT).show();
                            }
                        }
                    }
                })
                .setRightClick("取消", new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        dialog.dismiss();
                        if (type == 2) {
                            System.exit(0);
                        }
                    }
                })
                .create();
        dialog.show();
    }


    /**
     * 下载apk
     *
     */
    public void downloadFile(final Context context) {
        RequestParams params = new RequestParams(url);
        params.setSaveFilePath(downLoadPath + fileName);
        x.http().request(HttpMethod.GET, params, new Callback.ProgressCallback<File>() {

            @Override
            public void onSuccess(File result) {

            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {
                Toast.makeText(context, ex.getMessage(), Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }

            @Override
            public void onWaiting() {

            }

            @Override
            public void onStarted() {

            }

            @Override
            public void onLoading(long total, long current, boolean isDownloading) {
                //实时更新通知栏进度条
                if (type == 0) {
                    notifyNotification(current, total);
                } else if (type == 2) {
                    progressDialog.setProgress((int) (current * 100 / total));
                }
                if (total == current) {
                    if (type == 0) {
                        mBuilder.setContentText("下载完成");
                        mNotifyManager.notify(10086, mBuilder.build());
                    } else if (type == 2) {
                        progressDialog.setMessage("下载完成");
                    }
                    if (type == 1) {
                        showDialog(context);
                    } else {
                        installApk(context, new File(downLoadPath, fileName));
                    }
                }
            }
        });
    }
    /**
     * 强制更新时显示在屏幕的进度条
     *
     */
    private void createProgress(Context context) {
        progressDialog = new ProgressDialog(context);
        progressDialog.setMax(100);
        progressDialog.setCancelable(false);
        progressDialog.setMessage("正在下载...");
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progressDialog.show();
    }

    /**
     * 建立通知栏进度条
     *
     */
    private void createNotification(Context context) {
        mNotifyManager = (NotificationManager) context.getSystemService(NOTIFICATION_SERVICE);
        mBuilder = new NotificationCompat.Builder(context);
        mBuilder.setSmallIcon(BaseAndroid.getBaseConfig().getAppLogo());
        mBuilder.setContentTitle("版本更新");
        mBuilder.setContentText("正在下载...");
        mBuilder.setProgress(0, 0, false);
        Notification notification = mBuilder.build();
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        mNotifyManager.notify(10086, notification);
    }

    /**
     * 更新通知栏进度条
     *
     */
    private void notifyNotification(long percent, long length) {
        mBuilder.setProgress((int) length, (int) percent, false);
        mNotifyManager.notify(10086, mBuilder.build());
    }

    /**
     * 安装apk
     *
     * @param context 上下文
     * @param file    APK文件
     */
    private void installApk(Context context, File file) {
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(Intent.ACTION_VIEW);
        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
        context.startActivity(intent);
    }

    /**
     * @return 当前应用的版本号
     */
    public int getVersionCode(Context context) {
        try {
            PackageManager manager = context.getPackageManager();
            PackageInfo info = manager.getPackageInfo(context.getPackageName(), 0);
            int version = info.versionCode;
            return version;
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 判断当前网络是否wifi
     */
    public boolean isWifi(Context mContext) {
        ConnectivityManager connectivityManager = (ConnectivityManager) mContext
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetInfo != null && activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {
            return true;
        }
        return false;
    }

    public UpdateManager setUrl(String url) {
        this.url = url;
        return this;
    }

    public UpdateManager setType(int type) {
        this.type = type;
        return this;
    }

    public UpdateManager setUpdateMessage(String updateMessage) {
        this.updateMessage = updateMessage;
        return this;
    }

    public UpdateManager setFileName(String fileName) {
        this.fileName = fileName;
        return this;
    }

    public UpdateManager setIsDownload(boolean download) {
        isDownload = download;
        return this;
    }

}