如何在Robotium中创建屏幕截图

Question

我想知道如何在Robotium的AVD上截屏。我已经读过，我必须有权限，但我已经做到了。

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" /> 

但我依然有错误在Android监视器

D/Robotium: Can't save the screenshot! Requires write permission (android.permission.WRITE_EXTERNAL_STORAGE) in AndroidManifest.xml of the application under test. 
W/System.err: java.io.FileNotFoundException: /sdcard/Screenshot/asd.jpg: open failed: EACCES (Permission denied) 

我手动创建的目录，确保目录存在。

我也试图采取截图我的磁盘

String path = "/sdcard/SS"; 
solo.getConfig().screenshotSavePath = path; 
solo.takeScreenshot("asd"); 

path = "C:/"; 
solo.getConfig().screenshotSavePath = path; 
solo.takeScreenshot("asd"); 

但错误依然存在的。采取截图有什么问题？

Answer 1

如果您已经创建了SS DIR：

String path = Environment.getExternalStorageDirectory().getPath() + "/SS"; 

Answer 2

首先，创建路径，@Seishin说：

String path = Environment.getExternalStorageDirectory().getPath() + "/SS"; 

然后，转到您的build.gradle文件和降级targetSdkVersion至22。

比 22更高

，我的意思是：23或24，需要定义Android权限控制，这比只定义有点不同：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

阅读：https://developer.android.com/training/permissions/index.html

这些类型的权限（运行时权限）适用于Android 6.0及更高版本，所需代码如下所示：

// Here, thisActivity is the current activity 
if (ContextCompat.checkSelfPermission(thisActivity, 
       Manifest.permission.READ_CONTACTS) 
     != PackageManager.PERMISSION_GRANTED) { 

    // Should we show an explanation? 
    if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity, 
      Manifest.permission.READ_CONTACTS)) { 

     // Show an expanation to the user *asynchronously* -- don't block 
     // this thread waiting for the user's response! After the user 
     // sees the explanation, try again to request the permission. 

    } else { 

     // No explanation needed, we can request the permission. 

     ActivityCompat.requestPermissions(thisActivity, 
       new String[]{Manifest.permission.READ_CONTACTS}, 
       MY_PERMISSIONS_REQUEST_READ_CONTACTS); 

     // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an 
     // app-defined int constant. The callback method gets the 
     // result of the request. 
    } 
} 

要避免它，只需降级您的targetSdkVersion。

希望这将有助于