Android：获得应用拥有的权限

Log输出某APP拥有的权限

PackageManager pm = context.getPackageManager();
PackageInfo pi;
try {
    // 参数2必须是PackageManager.GET_PERMISSIONS
    pi = pm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS);
    String[] permissions = pi.requestedPermissions;
    if(permissions != null){
        for(String str : permissions){
            Log.i(TAG, str);
        }
    }
} catch (NameNotFoundException e) {
    e.printStackTrace();
}

上述代码中，packageName是目标APP的包名。

以List集合返回某APP拥有的权限信息

基于上述代码，修改为如下方式：

List<PermissionInfo> permissionInfoList = new ArrayList<PermissionInfo>();
PackageManager pm = context.getPackageManager();
PackageInfo pi;
try {
    pi = pm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS);
    String[] permissions = pi.requestedPermissions;
    if(permissions != null){
        for(String str : permissions){
            PermissionInfo permissionInfo = context.getPackageManager().getPermissionInfo(str, 0);
            permissionInfoList.add(permissionInfo);
        }
    }
} catch (NameNotFoundException e) {
    e.printStackTrace();
}
return permissionInfoList;

基于上述代码，便可获得更为丰富的权限信息。

具体信息可参考该页面内的getAppPermissionList和showAppPermissionList方法。