我为我的游戏准备了这个类，我希望Label highscore使用CourierNew字体进行编写。.fnt和.png文件在assets文件夹中。
然而，我总是遇到错误提示:
package com.joelbrun.jetskirider.screens;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.CheckBox;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;
public class MainMenu implements Screen {
private Stage stage;
private Table table;
private Label highscore;
private Button startButton, removeAdsButton;
private CheckBox muteCheckbox;
private BitmapFont CourierNew;
public int score = 0;
@Override
public void show() {
stage = new Stage();
table = new Table();
table.setFillParent(true);
CourierNew = new BitmapFont(Gdx.files.internal("CourierNew.fnt"), false);
Button.ButtonStyle startButtonStyle = new Button.ButtonStyle();
startButtonStyle.up = new TextureRegionDrawable(new TextureRegion(new Texture(Gdx.files.internal("startButtonUp.png"))));
startButtonStyle.down = new TextureRegionDrawable(new TextureRegion(new Texture(Gdx.files.internal("startButtonDown.png"))));
Button.ButtonStyle removeAdsButtonStyle = new Button.ButtonStyle();
removeAdsButtonStyle.up = new TextureRegionDrawable(new TextureRegion(new Texture(Gdx.files.internal("removeAdsButtonUp.png"))));
removeAdsButtonStyle.down = new TextureRegionDrawable(new TextureRegion(new Texture(Gdx.files.internal("removeAdsButtonDown.png"))));
CheckBox.CheckBoxStyle muteCheckboxStyle = new CheckBox.CheckBoxStyle();
muteCheckboxStyle.checkboxOn = new TextureRegionDrawable(new TextureRegion(new Texture("muteCheckboxChecked.png")));
muteCheckboxStyle.checkboxOff = new TextureRegionDrawable(new TextureRegion(new Texture("muteCheckboxUnchecked.png")));
Label.LabelStyle highscoreStyle = new Label.LabelStyle(CourierNew, Color.YELLOW);
String formatted = Integer.toString(score);
startButton = new Button(startButtonStyle);
removeAdsButton = new Button(removeAdsButtonStyle);
muteCheckbox = new CheckBox(null, muteCheckboxStyle);
highscore = new Label(formatted, highscoreStyle);
table.add(startButton);
table.debug();
stage.addActor(table);
}
@Override
public void render(float delta) {
Gdx.gl.glClearColor(0,0,0,1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
stage.act(delta);
stage.draw();
}
@Override
public void resize(int width, int height) {
}
@Override
public void pause() {
}
@Override
public void resume() {
}
@Override
public void hide() {
}
@Override
public void dispose() {
stage.dispose();
}
}
然而，我总是遇到错误提示:
06-27 14:44:55.157 15191-15235/com.joelbrun.jetskirider.android E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 78201
Process: com.joelbrun.jetskirider.android, PID: 15191
java.lang.IllegalArgumentException: Missing LabelStyle font.
at com.badlogic.gdx.scenes.scene2d.ui.Label.setStyle(Label.java:77)
at com.badlogic.gdx.scenes.scene2d.ui.Label.<init>(Label.java:71)
at com.badlogic.gdx.scenes.scene2d.ui.TextButton.<init>(TextButton.java:46)
at com.badlogic.gdx.scenes.scene2d.ui.CheckBox.<init>(CheckBox.java:41)
at com.joelbrun.jetskirider.screens.MainMenu.show(MainMenu.java:51)
at com.badlogic.gdx.Game.setScreen(Game.java:61)
at com.joelbrun.jetskirider.screens.Splash$1.onEvent(Splash.java:38)
at aurelienribon.tweenengine.BaseTween.callCallback(BaseTween.java:380)
at aurelienribon.tweenengine.BaseTween.updateStep(BaseTween.java:521)
at aurelienribon.tweenengine.BaseTween.update(BaseTween.java:424)
at aurelienribon.tweenengine.TweenManager.update(TweenManager.java:166)
at com.joelbrun.jetskirider.screens.Splash.render(Splash.java:48)
at com.badlogic.gdx.Game.render(Game.java:46)
at com.joelbrun.jetskirider.JetskiRider.render(JetskiRider.java:35)
at com.badlogic.gdx.backends.android.AndroidGraphics.onDrawFrame(AndroidGraphics.java:422)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1522)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
发生了什么问题？我已经尝试了很多方法... 希望有人能帮忙