Question

我想从原始目录（rules.txt）文件中的文件中读取文本，并将其文本显示在帮助活动中代码中没有任何错误，但是当我在模拟器中运行时，应用程序崩溃了。任何人都可以解决这个问题..我是android的新开发者

public class HelpActivity extends Activity
{
    @Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.help);
    InputStream iFile = getResources().openRawResource(R.raw.rules);
    TextView helpText = (TextView) findViewById(R.id.TextView_HelpText);
    String strFile = inputStreamToString(iFile);
    helpText.setText(strFile);
}

private String inputStreamToString(InputStream iFile) {
    // TODO Auto-generated method stub
    return null;
 }
}

Answer 1

我想你应该使用这样的东西：

public static String getDataFromResources(Context context, int resID) throws IOException {
    InputStream iStream = context.getResources().openRawResource(resID);
    Writer writer = new StringWriter();
    char[] buffer = new char[1024];
    try {
        Reader reader = new BufferedReader(new InputStreamReader(iStream, "UTF-8"));
        int n;
        while ((n = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, n);
        }
    } finally {
        iStream.close();
    }
    return writer.toString();
}

代码中需要android帮助

1 个答案: