我如何通过assetManager读取.TXT资产为UTF-8的Andr​​oid？ [英] How do I read .txt assets as UTF-8 in Android through the assetManager?

问题描述

 私人无效copyMB（）{
    AssetManager assetManager = this.getResources（）getAssets（）。
    的String []文件= NULL;
    尝试{
        文件= assetManager.list（assetDir）;
    }赶上（例外五）{
        e.printStackTrace（）;
    }
    的for（int i = 0; I＆LT; files.length;我++）{
        在的InputStream = NULL;
        FileOutputStream中FOS;
        尝试{
            在= assetManager.open（assetDir +/+文件[I]）;            FOS = openFileOutput（文件[I]，Context.MODE_PRIVATE）;
            copyFile（中，FOS）;
            附寄（）;
            在= NULL;
            fos.flush（）;
            fos.close（）;
            FOS = NULL;
        }赶上（例外五）{
            e.printStackTrace（）;
        }
    }
}
私人无效copyFile（在的InputStream，OutputStream的了）抛出IOException    字节[]缓冲区=新的字节[1024];
    INT读;    而（（读= in.read（缓冲））！= -1）{
        out.write（缓冲，0，读）;
    }
}
 

我的问题是UTF-8字符，如AAO被奇怪的看着字符替换。我怎样才能确保它的InputStream我的读者使用UTF-8？在正常的Java它会很容易写作......新的InputStreamReader（文件路径，UTF-8）;但自从我从资产文件夹中得到它我canot做到这一点（我不得不使用它不会采取UTF-8作为参数assetManager.open（）方法。

任何想法？ ：）

感谢您的帮助。

解决方案

你自己写的：

 新的InputStreamReader（在UTF-8）;
 

创建了UTF-8编码一个新的流阅读器。只需把它放在 copyFile（）方法与你的的InputStream 作为参数。<​​/ P>

private void copyMB() {
    AssetManager assetManager = this.getResources().getAssets();
    String[] files = null;
    try {
        files = assetManager.list(assetDir);
    } catch (Exception e) {
        e.printStackTrace();
    }
    for(int i=0; i<files.length; i++) {
        InputStream in = null;
        FileOutputStream fos;
        try {
            in = assetManager.open(assetDir+"/" + files[i]);

            fos = openFileOutput(files[i], Context.MODE_PRIVATE);
            copyFile(in, fos);
            in.close();
            in = null;
            fos.flush();
            fos.close();
            fos = null;
        } catch(Exception e) {
            e.printStackTrace();
        }       
    }
}
private void copyFile(InputStream in, OutputStream out) throws IOException {

    byte[] buffer = new byte[1024];
    int read;

    while((read = in.read(buffer)) != -1){
        out.write(buffer, 0, read);
    }
}

My problem is that UTF-8 character such as åäö is replaced by wierd looking characters. How can I make sure that it my InputStream reader uses UTF-8? In normal Java it would be easy Writing … new InputStreamReader(filePath, "UTF-8"); But since I am getting it from the Asset folder I canot do that (I have to use the assetManager.open() method which wont take "UTF-8" as an argument.

Any ideas? :)

Thank you for your help.

解决方案

As you write yourself:

new InputStreamReader(in, "UTF-8");

creates a new stream reader with Utf-8 encoding. Just put it in the copyFile() method with your InputStream as the argument.

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