手机未安装微信时，隐藏微信登录的按钮 - 微信貌似取消了用手机号码授权登录的方式了

Author: wanghengheng

Coding_iOS/Coding_iOS-Info.plist

@@ -37,7 +37,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>5.0.201802091630</string>
+	<string>5.0.201802130930</string>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LSApplicationQueriesSchemes</key>

Coding_iOS/Controllers/Login/LoginViewController.m

@@ -342,6 +342,8 @@ - (UIView *)customFooterView{
     });
     [_underLoginBtn addTarget:self action:@selector(underLoginBtnClicked:) forControlEvents:UIControlEventTouchUpInside];
 
+    _underLoginBtn.hidden = ![self p_canOpenWeiXin];
+    
     UIButton *cannotLoginBtn = ({
         UIButton *button = [UIButton new];
         [button.titleLabel setFont:[UIFont systemFontOfSize:14]];
@@ -586,4 +588,13 @@ - (void)p_thridPlatformLogin:(UMSocialResponse *)resp{
     }];
 }
 
+#pragma mark - app url
+- (BOOL)p_canOpenWeiXin{
+    return [self p_canOpen:@"weixin://"];
+}
+
+- (BOOL)p_canOpen:(NSString*)url{
+    return [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:url]];
+}
+
 @end