如何编写一个数组来存储可绘制文件夹中的图像? [英] How to write an array which stores the images from the drawable folder?

问题描述

我能知道我做错了什么吗?我只是想从可绘制文件夹中获取图像，然后将其传递到我的适配器以显示在我的gridView上.但是我不知道如何在数组内添加图像.错误消息在此行

Can i know what did i do wrong? i just wanna get my images from drawable folder and pass it to my adapter to display on my gridView.. But i dont know how to add inside the array.. The error message is at the line

arrImages[i] = this.getResources().getIdentifier(wd.getName(), "drawable", this.getPackageName());

任何人都想要帮助我:(我想根据数据库中的名称动态加载它.数据库名称(wd.getName())与我的文件名.png相同

Anybody wants to help me :( I wanna load it dynamically according to the names in my database.. the database name (wd.getName()) is the same as my file name.png

在顶部声明:

    int arrImages [] = {};

在onCreate内部:

Inside onCreate :

    int i = 0;
    for (Words wd : words)
    {

        String log = "Id: " + wd.getId() + " ,Name: " + wd.getName();
        // Writing Contacts to log
        Log.d("wordList : ", log);

        arrImages[i] = this.getResources().getIdentifier(wd.getName(), "drawable", this.getPackageName());

        i++;
    }

推荐答案

我已经使用动态方式完成了此操作.

I've done it using dynamic way.

实现新的数组列表:

ArrayList<Integer> arrImages = new ArrayList<>();

然后我可以将所有图像动态存储在内部.

Then I can store all my images dynamically inside.

这是我数据库中的循环，将可绘制文件夹中的资源ID添加到我的数组中:

This is the looping from my database, adding the resource id from drawable folder to my array :

for (Words wd : words)
    {
        String log = "Id: " + wd.getId() + " ,Name: " + wd.getName() ;
        // Writing Contacts to log
        Log.d("wordList : ", log);

        arrImages.add( this.getResources().getIdentifier(wd.getName(), "drawable", this.getPackageName()));

    }

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