优化安装代理的业务逻辑

app/src/main/java/com/bgycc/smartcanteen/utils/InstallManager.java

@@ -12,18 +12,19 @@ import static com.bgycc.smartcanteen.utils.SmartCanteenUtils.TAG;
 public class InstallManager {
     public static boolean install(File updateApk) {
         String model = Build.MODEL;
-        if (model.contains(DeviceProxy.DEVICE_MODEL_TPS)) {
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
             // 6.0以下安装包需要修改权限才能安装
             try {
                 Process p = Runtime.getRuntime().exec("chmod 755 " + updateApk);
                 p.waitFor();
-                DangerousUtils.installAppSilent(updateApk);
                 LogUtils.d(TAG, "开始安装");
-                return true;
             } catch (Exception e) {
                 LogUtils.e(TAG, "安装文件权限修改失败");
                 return false;
             }
+        }
+        if (model.contains(DeviceProxy.DEVICE_MODEL_TPS)) {
+            return DangerousUtils.installAppSilent(updateApk);
         } else if (model.contains(DeviceProxy.DEVICE_MODEL_QUAD)) {
             AppUtils.installApp(updateApk);
             return true;