android 6.0 内部SD卡权限管理的方法

android 6.0以后，权限的管理方法就不仅局限于androidManifest.xml了，APK 如果需要权限，必须要在代码里实现权限的申请。

下面是实时查看权限的许可情况和实时撤销权限许可的命令（不用每次都去: 设置->应用->xxx应用->应用信息->权限->权限列表，修改权限的许可）的方法

Use the adb tool to manage permissions from the command line:
- List permissions and status by group: 这个只是列出设备的所有的危险权限，并没有命令来显示某个应用的权限的许可情况（这点不好）
```
$ adb shell pm list permissions -d -g
```
- Grant or revoke one or more permissions:
```
$ adb shell pm [grant|revoke] <permission-name> ...
```
Analyze your app for services that use permissions.

查看内部SD权限的读取权限

group:android.permission-group.STORAGE
permission:android.permission.READ_EXTERNAL_STORAGE
permission:android.permission.WRITE_EXTERNAL_STORAGE

权限的申请判断代码如下：

/***
     group:android.permission-group.STORAGE
     permission:android.permission.READ_EXTERNAL_STORAGE
     permission:android.permission.WRITE_EXTERNAL_STORAGE
     ***/
    private static final int REQUEST_EXTERNAL_STORAGE = 1;
    private static String[] PERMISSIONS_STORAGE = {
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE };
    private boolean verifyStoragePermissions(Activity activity) {

        if(Util.SDK_INT < 23) /*******below android 6.0*******/
        {
            return true;
        }

        // Check if we have write permission
        int permission = ActivityCompat.checkSelfPermission(activity,
                Manifest.permission.READ_EXTERNAL_STORAGE);
        if (permission != PackageManager.PERMISSION_GRANTED) {
            // We don't have permission so prompt the user
            ActivityCompat.requestPermissions(activity,PERMISSIONS_STORAGE,
                    REQUEST_EXTERNAL_STORAGE);
            return false;
        }
        else
        {
          return true;
        }
    }

如果verifyStoragePermissions 返回时false，那么需要实现权限的申请处理，实现onRequestPermissionResult

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_EXTERNAL_STORAGE: {
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    /×××do request function(into apk)×××××/
                } else {

             Toast.makeText(getApplicationContext(),
             "storage permission denied,it will exit apk",
             Toast.LENGTH_LONG).show();
                    
                     /×××do request function(exitapk)×××××/
                      finish(); 
                      } 
                    }
           break; 
           default: 
           super.onRequestPermissionsResult(requestCode, permissions, grantResults);
           break; 
        }
       }
      }

如果verifyStoragePermissions返回true则直接进入APK或Activity.
其他的应用可以参考如下链接：
http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2015/1110/3670.html
http://www.jianshu.com/p/a51593817825
http://blog.csdn.net/lmj623565791/article/details/50709663
http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2015/1110/3670.html
http://blog.csdn.net/yangqingqo/article/details/48371123/

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android 6.0 内部SD卡权限管理的方法

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