解决微博登录 Application requires permission to access the Internet

背景：

微博sdk 登录提示

Application requires permission to access the Internet

如上图

问题分析：

这种情况，只有手机上没有安装微博客户端的时候，才会出现。
我们可以跟下微博sdk 的代码，在这里：

protected void startWebAuth() {if (!NetworkHelper.hasInternetPermission(this.mAuthActivity)) {UIUtils.showAlert(this.mAuthActivity, "Error", "Application requires permission to access the Internet");} else {AuthWebViewRequestParam param = new AuthWebViewRequestParam(authInfo, WebRequestType.AUTH, mAuthListenerKey, "微博登录", url, this.mAuthActivity);Intent intent = new Intent(this.mAuthActivity, WeiboSdkWebActivity.class);Bundle bundle = new Bundle();param.fillBundle(bundle);intent.putExtras(bundle);this.mAuthActivity.startActivity(intent);}}

很明显，NetworkHelper.hasInternetPermission返回了fasle,也就是没有权限才会有这个弹窗。
我们看下这个是怎么写的：

    public static boolean hasInternetPermission(Context context) {if (context != null) {return 0 == context.checkCallingPermission("android.permission.INTERNET");} else {return true;}}

这里调用了checkCallingPermission！如果是同一个进程调用这个方法，一定会返回-1，也就是permission define。（权限拒绝）

我们开始看源码:

   /*** Determine whether the calling process of an IPC you are handling has been* granted a particular permission.  This is basically the same as calling* {@link #checkPermission(String, int, int)} with the pid and uid returned* by {@link android.os.Binder#getCallingPid} and* {@link android.os.Binder#getCallingUid}.  One important difference* is that if you are not currently processing an IPC, this function* will always fail.  This is done to protect against accidentally* leaking permissions; you can use {@link #checkCallingOrSelfPermission}* to avoid this protection.** @param permission The name of the permission being checked.** @return {@link PackageManager#PERMISSION_GRANTED} if the calling* pid/uid is allowed that permission, or* {@link PackageManager#PERMISSION_DENIED} if it is not.** @see PackageManager#checkPermission(String, String)* @see #checkPermission* @see #checkCallingOrSelfPermission*/@CheckResult(suggest="#enforceCallingPermission(String,String)")@PackageManager.PermissionResultpublic abstract int checkCallingPermission(@NonNull String permission);/*** Determine whether <em>you</em> have been granted a particular permission.** @param permission The name of the permission being checked.** @return {@link PackageManager#PERMISSION_GRANTED} if you have the* permission, or {@link PackageManager#PERMISSION_DENIED} if not.** @see PackageManager#checkPermission(String, String)* @see #checkCallingPermission(String)*/@PackageManager.PermissionResultpublic abstract int checkSelfPermission(@NonNull String permission);

我们看下checkCallingPermission 的实现，以及checkSelfPermission 的实现：

    @Overridepublic int checkCallingPermission(String permission) {if (permission == null) {throw new IllegalArgumentException("permission is null");}int pid = Binder.getCallingPid();if (pid != Process.myPid()) {return checkPermission(permission, pid, Binder.getCallingUid());}return PackageManager.PERMISSION_DENIED;}
checkCallingPermission 如果是同一个进程的话，那么直接返回PERMISSION_DENIED 。只适用于不同进程之间判断有没有权限。

    @Overridepublic int checkSelfPermission(String permission) {if (permission == null) {throw new IllegalArgumentException("permission is null");}return checkPermission(permission, Process.myPid(), Process.myUid());}这个才是判断当前进程，当前用户，有没有这个权限。

解决方法：

我们重写调用微博登录的activity 的 checkCallingPermission 方法：

    @Overridepublic int checkCallingPermission(String permission) {return super.checkCallingOrSelfPermission(permission);}

这样的话，checkCallingOrSelfPermission 就会返回正确的，当前应用有没有网络权限。就不会再弹窗了。

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解决微博登录 Application requires permission to access the Internet

背景：

问题分析：

我们开始看源码:

解决方法：

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