一行代码实现版本更新

前言

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每一个不停迭代的App都需要版本更新,这是刚需
版本更新可以强制或者半强制用户通过App内部更新,而不是通过应用市场

最终效果

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在需要进行版本更新的位置调用下面的代码
context上下文为了显示弹窗或者通知栏
后面的boolean类型值 显示/不显示检查版本更新的toast
主要是在App刚打开时,检查到版本号与后台一致,那么就不需要更新APP
当然也不需要提示用户
但当用户在设置界面进行查看版本号时,版本号一致,也需要对用户进行提示

老实说,这边就是一个半封装的模板,拿来用来时很爽的

 new UpdateManager(context).checkUpdate(true);

基本过程

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版本更新的几个步骤

总结下来无外乎
调版本接口->弹更新提示窗->开启服务下载APK->安装Apk

编码

step1 创建一个版本更新管理类

public class UpdateManager  {    private Context mContext;    private ProgressDialog mDialog;    public UpdateManager(Context context) {        this.mContext = context;    }    /**     * 检测软件更新     * 这里通过自己的网络框架简单改写     * 获取后台版本更新接口     */    public void checkUpdate(final boolean isToast) {        String url = GET_VERSION;        OkHttpUtils                .get()                .url(url)                .build()                .execute(new UpDateMsgCallback() {                    @Override                    public void onError(Call call, Exception e, int id) {                    }                    @Override                    public void onResponse(UpdateMsgBean bean, int id) {                        if ("00".equals(bean.getCode())) {                            UpdateMsgBean.DataBean.VersionInfoBean info = bean.getData().getVersionInfo();                            if (DeviceUtil.getVersionCode(mContext) < info.getVersionCode()) {                                App.version = info.getVersionNo();                                showNoticeDialog(info.getVersionNo(), info.getContent());                                App.VERSION_URL = info.getUrl();                            } else {                                if (isToast) {                                    Toast.makeText(mContext, "已经是最新版本", Toast.LENGTH_SHORT).show();                                }                            }                        }                    }                });    }    /**     * 显示更新对话框     */    private void showNoticeDialog(String versionNo, String version_info) {        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);        builder.setTitle("");        builder.setMessage("版本号:\n" + versionNo + "\n\n更新提示:\n" + version_info);        builder.setCancelable(false);        builder.setPositiveButton("更新", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();                mContext.startService(new Intent(mContext, DownLoadService.class));            }        });        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();            }        });        Dialog noticeDialog = builder.create();        noticeDialog.show();    }}

step2 后台服务 下载新版apk

public class DownLoadService extends Service {//目标文件存储的文件夹路径    private String destFileDir = Environment.getExternalStorageDirectory().getAbsolutePath() + File            .separator + Constant.PACKAGE_NAME;     //目标文件存储的文件名    private String destFileName = Constant.APK_NAME;    private Context mContext;    private int preProgress = 0;    private int NOTIFY_ID = 1000;    private NotificationCompat.Builder builder;    private NotificationManager notificationManager;    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        mContext = this;        loadFile();        return super.onStartCommand(intent, flags, startId);    }    @Nullable    @Override    public IBinder onBind(Intent intent) {        return null;    }//下载文件    private void loadFile() {        initNotification();/***这里也使用 自己的网络框架进行下载和进度监听*/        OkHttpUtils.get()                .url(App.VERSION_URL)                .build()                .execute(new FileCallBack(destFileDir, destFileName) {                    @Override                    public void onError(Call call, Exception e, int id) {                        LogUtils.error("下载失败");                        cancelNotification();                        stopSelf();                    }                    @Override                    public void inProgress(float progress, long total, int id) {                        super.inProgress(progress, total, id);                        updateNotification((long) (progress * 100));                        LogUtils.info(progress+"");                    }                    @Override                    public void onResponse(File file, int id) {                        LogUtils.info("下载完成");                        cancelNotification();                        installApk(file);                        stopSelf();                    }                });    }//安装软件    private void installApk(File file) {        Uri uri = Uri.fromFile(file);        Intent install = new Intent(Intent.ACTION_VIEW);        install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        install.setDataAndType(uri, "application/vnd.android.package-archive");        // 执行意图进行安装        mContext.startActivity(install);    } //初始化Notification通知    public void initNotification() {        builder = new NotificationCompat.Builder(mContext)                .setSmallIcon(R.mipmap.siji)                .setContentText("0%")                .setContentTitle("apk更新")                .setProgress(100, 0, false);        notificationManager = (NotificationManager) mContext.getSystemService(                Context.NOTIFICATION_SERVICE);        notificationManager.notify(NOTIFY_ID, builder.build());    } //更新通知    public void updateNotification(long progress) {        int currProgress = (int) progress;        if (preProgress < currProgress) {            builder.setContentText(progress + "%");            builder.setProgress(100, (int) progress, false);            notificationManager.notify(NOTIFY_ID, builder.build());        }        preProgress = (int) progress;    } //取消通知    public void cancelNotification() {        notificationManager.cancel(NOTIFY_ID);    }    @Override    public void onDestroy() {        super.onDestroy();    }}

最后 不要忘记注册权限 和配置service