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eclipse + adt连接到真实的移动设备时，应用无法访问sdcard

[英]App can not access sdcard when eclipse+adt connect to real mobile device

原文 2013-12-05 03:51:59 3 2 android/ eclipse/ emulation/ adt

When eclipse+adt connect to an avd emulator, my app run well and it will read/write the sdcard in this avd emulator. 当eclipse + adt连接到avd模拟器时，我的应用程序运行良好，它将在此avd模拟器中读取/写入sdcard。

Now I connect eclipse+adt to a real device by USB. 现在，我通过USB将eclipse + adt连接到真实设备。 Eclipse+adt transfre app to the real device and app run successful. 将Eclipse + adt Transfre应用程序迁移到真实设备，并且该应用程序成功运行。 But, when app access sdcard, it failed. 但是，当应用程序访问SD卡时，它失败了。 When I disconnect USB, app can access sdcard. 当我断开USB连接时，应用程序可以访问sdcard。 Of course, I can't get the log out. 当然，我无法注销。

What shall I do? 我该怎么办？ I want debug app on real device and it read/write sdcard and I want the log out. 我想在真实设备上调试应用程序，并且它读/写sdcard，我想注销。

Addition, when I connect USB, device system give a hint: can't visit sdcard memory. 另外，当我连接USB时，设备系统会提示：无法访问sdcard内存。

2 个解决方案

To access the sd card of a phone, we need to root the phone. 要访问手机的sd卡，我们需要启动手机。 Once you root a device, you can even see the database of the aplication that you are developing. 一旦为设备建立了根目录，您甚至可以查看正在开发的应用程序的数据库。

finally I find the way. 终于我找到了路。 When USB connect to PC, I should set the connection as "only battery charge", then both eclipse and app on this mobile can visit SD card. 当USB连接到PC时，我应该将连接设置为“仅电池充电”，然后该移动设备上的eclipse和app都可以访问SD卡。 The total setting about USB connection type include: 1, ask when connection, 2, only battery charge, 3, open memory card. USB连接类型的总设置包括：1，连接时询问，2，仅电池充电，3，打开存储卡。 I choose the second. 我选择第二个。 I try this in my mobile phone of "xiaomi" which is famous brand of a China company. 我在中国公司的知名品牌“小米”手机中尝试了这一操作。