奇怪的libgdx TextField UI渲染错误(IndexOutOfBoundsException) [英] Strange libgdx TextField ui render error (IndexOutOfBoundsException)
问题描述
当libgdx ui渲染时，偶尔会出现此错误:
I get this error just once in a while when libgdx ui renders:
09-25 17:50:26.779 31171-32670/se.company.app.android E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 1126
Process: se.company.app.android, PID: 31171
java.lang.IndexOutOfBoundsException: index can't be >= size: 36 >= 36
at com.badlogic.gdx.utils.FloatArray.get(FloatArray.java:104)
at com.badlogic.gdx.scenes.scene2d.ui.TextField.calculateOffsets(TextField.java:214)
at com.badlogic.gdx.scenes.scene2d.ui.TextArea.calculateOffsets(TextArea.java:266)
at com.badlogic.gdx.scenes.scene2d.ui.TextField.draw(TextField.java:294)
at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:123)
at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:57)
at com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup.draw(WidgetGroup.java:154)
at com.badlogic.gdx.scenes.scene2d.ui.Table.draw(Table.java:117)
at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:110)
at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:57)
at com.badlogic.gdx.scenes.scene2d.Stage.draw(Stage.java:128)
at se.company.app.screens.AbstractScreen.render(AbstractScreen.java:36)
at se.company.app.screens.InstructionsScreen.render(InstructionsScreen.java:80)
at com.badlogic.gdx.Game.render(Game.java:46)
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)
09-25 17:50:30.823 31171-31171/se.company.app.android E/AndroidGraphics﹕ waiting for pause synchronization took too long; assuming deadlock and killing
09-25 17:50:30.833 31171-31171/se.company.app.android I/Process﹕ Sending signal. PID: 31171 SIG: 9
我不知道这是什么.线程问题?但是呢设置文字时，我可以使用Gdx.app.postRunnable()来实现.
I can't figure out what it is about. Threading issue? But what? When I set text I do it with Gdx.app.postRunnable().
我上过课:
public class InstructionsScreen extends AbstractScreen {
private InputProcessor inputProcessor = new InputAdapter() {
@Override
public boolean keyDown(int keycode) {
if ((keycode == Input.Keys.ESCAPE) || (keycode == Input.Keys.BACK) ) {
game.setScreen(new BeginGameOptionsScreen(game, resources));
}
return false;
}
};
private Table table;
private ScrollPane resultsTextAreaScrollPane;
private TextArea resultsTextArea;
private TextArea textArea;
private float maxX,maxY,maxZ;
private Sound sound;
private long timer=0;
public InstructionsScreen(GameClass game, Resources resources) {
super(game, resources);
}
@Override
public void resize(int width, int height) {
addInputProcessor(inputProcessor);
table = new Table();
table.setFillParent(true);
stage.addActor(table);
TextArea resultsTextAreaBool;
resultsTextAreaBool = new TextArea("", resources.getSkin());
resultsTextAreaBool.setDisabled(true);
resultsTextAreaBool.setText(String.valueOf(Gdx.input.isPeripheralAvailable(Input.Peripheral.Accelerometer)));
table.add(resultsTextAreaBool).width(GraphicUtils.widthOfScreen(90)).height(GraphicUtils.heightOfScreen(20)).pad(GraphicUtils.onePercentHeight, GraphicUtils.onePercentWidth, GraphicUtils.onePercentHeight, GraphicUtils.onePercentWidth);
table.row();
resultsTextArea = new TextArea("", resources.getSkin());
resultsTextArea.setDisabled(true);
resultsTextArea.setText("");
table.add(resultsTextArea).width(GraphicUtils.widthOfScreen(90)).height(GraphicUtils.heightOfScreen(40)).pad(GraphicUtils.onePercentHeight, GraphicUtils.onePercentWidth, GraphicUtils.onePercentHeight, GraphicUtils.onePercentWidth);
table.row();
sound=resources.getRobotBlip();
}
@Override
public void render(float delta) {
super.render(delta);
float accelX = Gdx.input.getAccelerometerX();
float accelY = Gdx.input.getAccelerometerY();
float accelZ = Gdx.input.getAccelerometerZ();
if(accelX>maxX)
maxX=accelX;
if(accelY>maxY)
maxY=accelY;
if(accelZ>maxZ)
maxZ=accelZ;
if(Math.abs(maxX)>19f) {
timer++;
}
if(timer==1) {
sound.play();
}
if(timer>20) {
timer=0;
maxX=0;
}
Gdx.app.postRunnable(new Runnable() {
@Override
public void run() {
resultsTextArea.setText("x=" + String.valueOf(maxX) + "\ny=" + String.valueOf(maxY) + "\nz=" + String.valueOf(maxZ));
}
});
}
}
问题似乎是由于上面的String中的换行符"\ n"引起的. 我使用FreeTypeFontGenerator即时创建字体:
Problem seems to arise because of newlines "\n" in String above. I use FreeTypeFontGenerator for font creation on the fly:
FreeTypeFontGenerator generator = new FreeTypeFontGenerator(Gdx.files.internal("data/fonts/anonymous-pro/Anonymous_Pro.ttf"));
FreeTypeFontGenerator.FreeTypeFontParameter freeTypeFontParameter = new FreeTypeFontGenerator.FreeTypeFontParameter();
freeTypeFontParameter.borderColor = Color.BLACK;
freeTypeFontParameter.borderWidth = 1;
freeTypeFontParameter.size = (int)(Gdx.graphics.getWidth()/25.0f);
anonymous_pro = generator.generateFont(freeTypeFontParameter);
generator.dispose();
我添加以下内容:
TextField.TextFieldStyle textFieldStyle=skin.get("default", TextField.TextFieldStyle.class);
textFieldStyle.font=anonymous_pro;
skin.add("default", textFieldStyle);
并通过以下方式检索:
resultsTextArea = new TextArea("", resources.getSkin()); //Resources is my own class
推荐答案
我希望您能原谅我提出的这个旧问题，尤其是在已经有答案的情况下.此页面是Google在该主题上很少提及的内容之一，我找到了另一种解决方案.
I hope you'll excuse me for bumping this old issue, especially when there's already an answer. This page is one of very few references on Google to the subject matter and I found a different solution.
简而言之，我不得不打开我正在使用的.fnt文件，并删除对字形0和10的引用.我知道您正在使用FreeTypeFontGenerator，但是我怀疑它会为字符代码0和10生成字形大小. ， 也.对于使用Hiero或其他生成器的人，您可以编辑.fnt文件并更改以下行:
In short, I had to open up the .fnt file that I was using and remove the references to glyphs 0 and 10. I know you're using FreeTypeFontGenerator, but I suspect it's generating Glyph sizes for character codes 0 and 10, too. For the folks using Hiero or another generator, you can edit the .fnt file and change the following lines:
chars count=98
char id=0 x=0 y=0 width=0 height=0 xoffset=-1 yoffset=0 xadvance=9 page=0 chnl=0
char id=10 x=0 y=0 width=0 height=0 xoffset=-1 yoffset=0 xadvance=0 page=0 chnl=0
char id=32 x=0 y=0 width=0 height=0 xoffset=-1 yoffset=0 xadvance=9 page=0 chnl=0
收件人
chars count=96
char id=32 x=0 y=0 width=0 height=0 xoffset=-1 yoffset=0 xadvance=9 page=0 chnl=0
请注意，id = 0和id = 10已消失，计数已更新.
Note that id=0 and id=10 are gone and the count is updated.
此GitHub问题似乎解决了问题的根源: https://github.com /libgdx/libgdx/issues/4570
This GitHub issue appears to address the root of the problem: https://github.com/libgdx/libgdx/issues/4570
这篇关于奇怪的libgdx TextField UI渲染错误(IndexOutOfBoundsException)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
