手机App版本更新（强制更新/选择更新）

来源：互联网发布：淘宝日亚礼品卡可靠吗编辑：程序博客网时间：2024/04/27 14:34

1.添加依赖：

compile 'org.xutils:xutils:3.5.0'compile 'com.google.code.gson:gson:2.8.1'2.初始化xutilspublic class BaseApplication extends Application {    @Override    public void onCreate() {        super.onCreate();        x.Ext.init(this);        x.Ext.setDebug(BuildConfig.DEBUG);    }}

3.定义一个获取version的工具类：

public class VersionUtils {    /**     * 获取应用的版本     */    public static int getVersionCode(Context context) {        int versionCode = 0;        try {            PackageManager packageManager = context.getPackageManager();            String packageName = context.getPackageName();            PackageInfo packageInfo = packageManager.getPackageInfo(packageName, 0);            versionCode = packageInfo.versionCode;        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        }        return versionCode;    }}4.Bean类public class MessageBean<T> {    private boolean success;    private String message;    private T result;    public boolean isSuccess() {        return success;    }    public void setSuccess(boolean success) {        this.success = success;    }    public String getMessage() {        return message;    }    public void setMessage(String message) {        this.message = message;    }    public T getResult() {        return result;    }    public void setResult(T result) {        this.result = result;    }}

=====================================

public class Version {    @SerializedName("has_new_version")    private boolean hasNewVersion;    @SerializedName("must_update")    private boolean mustUpdate;    private String url;    public boolean isHasNewVersion() {        return hasNewVersion;    }    public void setHasNewVersion(boolean hasNewVersion) {        this.hasNewVersion = hasNewVersion;    }    public boolean isMustUpdate() {        return mustUpdate;    }    public void setMustUpdate(boolean mustUpdate) {        this.mustUpdate = mustUpdate;    }    public String getUrl() {        return url;    }    public void setUrl(String url) {        this.url = url;    }}


5.MainActivity 页面代码


public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Button check;    private String url="http://172.18.47.57/checkversion.php";    private static final String TAG = "MainActivity";    private ProgressDialog progressDialog;    // 文件保存地址    private String targetPath = "";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        x.view().inject(this);        check= (Button) findViewById(R.id.btn_check_version);        //版本更新的监听事件        check.setOnClickListener(this);        //设置sdcard的根路径        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            File file = Environment.getExternalStorageDirectory();            targetPath = file.getAbsolutePath() + File.separator;        }        progressDialog = new ProgressDialog(this);        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);    }    @Override    public void onClick(View v) {        //检查版本号        checkVersion();    }    private void checkVersion() {        //获得自己app当前的版本号，用来和服务器的版本进行对比       final  int code = VersionUtils.getVersionCode(this);        RequestParams params=new RequestParams(url);        params.addQueryStringParameter("version",String.valueOf(code));        x.http().get(params, new Callback.CommonCallback<String>() {            @Override            public void onSuccess(String result) {                if (result!=null){                    Log.i(TAG, "onSuccess: " + result);                    Gson gson = new Gson();                    Type type = new TypeToken<MessageBean<Version>>() {                    }.getType();                    MessageBean<Version> messageBean = gson.fromJson(result, type);                    if (messageBean.isSuccess()){                     final   Version version = messageBean.getResult();                        //强制更新                        if(version.isMustUpdate()){                           //强制更新                           new AlertDialog.Builder(MainActivity.this)                                   .setTitle("版本更新")                                   .setMessage("强制更新到最新版本！")                                   .setPositiveButton("确定", new DialogInterface.OnClickListener() {                                       @Override                                       public void onClick(DialogInterface dialog, int which) {                                           updateVersion(version.getUrl());                                           dialog.dismiss();                                       }                                   })                                   //不可取消                                   .setCancelable(false)                                   .create().show();                        }else if(version.isHasNewVersion()){                            //选择更新                            new AlertDialog.Builder(MainActivity.this)                                    .setTitle("版本更新")                                    .setMessage("是否要升级到最新版本")                                    .setPositiveButton("确定", new DialogInterface.OnClickListener() {                                        @Override                                        public void onClick(DialogInterface dialog, int which) {                                            updateVersion(version.getUrl());                                            dialog.dismiss();                                        }                                    })                                    .setNegativeButton("下次再说", new DialogInterface.OnClickListener() {                                        @Override                                        public void onClick(DialogInterface dialog, int which) {                                            dialog.dismiss();                                        }                                    })                                    .create().show();                        }else{                            //无可用更新                            Toast.makeText(MainActivity.this, "当前已经是最新版本", Toast.LENGTH_SHORT).show();                        }                    }                }            }            @Override            public void onError(Throwable ex, boolean isOnCallback) {            }            @Override            public void onCancelled(CancelledException cex) {            }            @Override            public void onFinished() {            }        });    }    private void updateVersion(String url) {        //下载的app文件名：当前时间.apk        targetPath = targetPath + System.currentTimeMillis() + ".apk";        RequestParams params = new RequestParams(url);        // 设置下载保存路径        params.setSaveFilePath(targetPath);        // xutils的文件下载        x.http().get(params, new Callback.ProgressCallback<File>() {            @Override            public void onSuccess(File result) {                if (progressDialog.isShowing()) {                    progressDialog.dismiss();                }                //自动安装app的方法                installApk(result);            }            @Override            public void onError(Throwable ex, boolean isOnCallback) {                if (progressDialog.isShowing()) {                    progressDialog.dismiss();                }                Toast.makeText(MainActivity.this, "下载失败", 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) {                if (isDownloading) {                    progressDialog.setMessage("正在下载...");                    progressDialog.show();                    progressDialog.setMax((int) total);                    progressDialog.setProgress((int) current);                }            }        });    }    private void installApk(File file) {        Intent intent = new Intent();        intent.setAction(Intent.ACTION_VIEW);        intent.addCategory("android.intent.category.DEFAULT");        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");        startActivity(intent);        android.os.Process.killProcess(android.os.Process.myPid());    }}

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