libgdx的文本字段中的特殊字符不起作用 [英] Special characters in libgdx's textfield do not work

问题描述

我可以使用setText(åäö")，但是如果我没有在键盘上键入内容，这也不起作用

I can use setText("åäö") but if I type on my keyboard it doesn't show up, this doesn't work either

            public void keyTyped(TextField textField, char key) {
                JOptionPane.showMessageDialog(new JFrame(), key);
            }

奇怪的是，它不能在Mac上运行，但可以在Windows上运行，有人对此有答案吗? 谢谢！

The strange thing is that it doesn't work on mac but it does work on Windows, does anyone have an answer for that? Thank You!

这是另一个主题相似的问题！

Here's another question with a similarly topic!

如何从Libgdx中的特殊字符获取输入?

我试图获取ascii值并将其通过

I have tried to get the ascii value and puting it through

Gdx.input.isKeyPressed(ascii value);

但是它不起作用.我已将项目编码设置为UTF-8，并且可以打印åäö等特殊字符.

but it doesn't work. I have set my project encoding to UTF-8 and I can print special characters like åäö.

我尝试过

Gdx.input.setInputProcessor(new InputProcessor() {

        @Override
        public boolean keyDown(int keycode) {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public boolean keyUp(int keycode) {
            // TODO Auto-generated method stub
            return false;
        }

        @Override
        public boolean keyTyped(char character) {
            System.out.println(character);
            return false;
        }

        @Override
        public boolean touchDown(int screenX, int screenY, int pointer, int button) {
            return false;
        }

        @Override
        public boolean touchUp(int screenX, int screenY, int pointer, int button) {
            return false;
        }

        @Override
        public boolean touchDragged(int screenX, int screenY, int pointer) {
            return false;
        }

        @Override
        public boolean mouseMoved(int screenX, int screenY) {
            return false;
        }

        @Override
        public boolean scrolled(int amount) {
            return false;
        }

    });

未打印åäö

推荐答案

更新

这似乎与OSX上lwjgl中的Unicode字符错误有关: [已修复] Unicode输入

It seems, that this is related to a bug with unicode characters in lwjgl on OSX: [FIXED] Unicode input

如果您更新到最新的lwjgl库2.9.1，则应解决此问题.从变更日志中:

If you update to the latest lwjgl library 2.9.1 this should be fixed. From the changelog:

2013-10-13 kappaOne

2013-10-13 kappaOne

• .../org/lwjgl/opengl/MacOSXNativeKeyboard.java， src/native/macosx/org_lwjgl_opengl_Display.m:修复键盘键 代码以返回Unicode字符而不是ASCII字符

• .../org/lwjgl/opengl/MacOSXNativeKeyboard.java, src/native/macosx/org_lwjgl_opengl_Display.m: Fix keyboard key codes to return Unicode characters instead of ASCII characters

请参阅: 2.9.1-changelog.txt

原始答案

如何从Libgdx中的特殊字符获取输入?

How do you get input from special characters in Libgdx?

您可以实现接口com.badlogic.gdx.InputProcessor并通过调用Gdx.input.setInputProcessor(inputProcessor );

You can implement the interface com.badlogic.gdx.InputProcessor and set the current input processor by calling Gdx.input.setInputProcessor(inputProcessor );

然后，您应该能够在InputProcessor#keyTyped(char c)方法中接收有关所有键入字符(无论是否特殊)的通知.

Then you should be able to receive notifications about all typed characters (special or not) in the method InputProcessor#keyTyped(char c).

实际上，这或多或少是TextField类所做的(不完全是，它通过扩展com.badlogic.gdx.scenes.scene2d.InputListener来监听输入).

Actually this is more or less, what the class TextField does (not exactly, it listens for input by extending com.badlogic.gdx.scenes.scene2d.InputListener).

我快速浏览了TextFields keyTyped方法的相关源代码:

I had a quick look at the relevant source code of TextFields keyTyped method:

[...]
if (font.containsCharacter(character)) {
   // here the character gets added to the text field
}
[...]

因此，似乎文本字段的字体必须支持该字符，否则它将不会显示.我没有Mac可以对此进行测试，但是我想，您Mac上默认使用的BitmapFont不支持特殊字符.尝试为TextField设置其他BitmapFont(请参见TextField.setStyle(TextFieldStyle样式))，看看是否可以解决问题.

So it seems, that the font of the text field must support the character, otherwise it will not be displayed. I have no mac to test this, but I would guess, that the BitmapFont used by default on your mac does not support the special characters. Try to set a different BitmapFont for the TextField (see TextField.setStyle(TextFieldStyle style)) and see if this solves the problem.

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