android判断应用是否有某个权限

android在开发中有时候要判断应用中是否有某项权限，或者想获取到某个应用的权限清单，可以使用以下方法

1) 判断应用是否具有某个权限

[java] view
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PackageManager pm = getPackageManager();  

        boolean permission = (PackageManager.PERMISSION_GRANTED ==   

                pm.checkPermission("android.permission.RECORD_AUDIO", "packageName"));  

        if (permission) {  

            showToast("有这个权限");  

        }else {  

            showToast("木有这个权限");  

        }  

2)获取某个应用的权限清单

[java] view
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try {  

            PackageInfo pack = pm.getPackageInfo("packageName",PackageManager.GET_PERMISSIONS);</span>  

            String[] permissionStrings = pack.requestedPermissions;  

            showToast("权限清单--->" + permissionStrings.toString());  

        } catch (NameNotFoundException e) {  

            e.printStackTrace();  

        }  

[java] view
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permissionStrings 是一个这样的字符串数组  

[java] view
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[android.permission.INTERNET,   

         android.permission.READ_PHONE_STATE,   

         android.permission.READ_CONTACTS,   

         ……  

         android.permission.READ_EXTERNAL_STORAGE,   

         android.permission.READ_CALL_LOG,   

         android.permission.WRITE_CALL_LOG]  

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