Android：獲得應用擁有的權限

Log輸出某APP擁有的權限

PackageManager pm = context.getPackageManager();
PackageInfo pi;
try {
    // 參數2必須是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();
}

上述代碼中，packageName是目標APP的包名。

以List集合返回某APP擁有的權限信息

基於上述代碼，修改為如下方式：

List permissionInfoList = new ArrayList();
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;

基於上述代碼，便可獲得更為豐富的權限信息。

具體信息可參考該頁面內的getAppPermissionList和showAppPermissionList方法。