标签:style blog http io ar color os 使用 sp
1、运行界面
这是一个不显示滚动条的水平ScrollPanel,通过手势控制ScrollPanel水平移动
2、示例代码
import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.scenes.scene2d.Actor; import com.badlogic.gdx.scenes.scene2d.InputEvent; import com.badlogic.gdx.scenes.scene2d.InputListener; import com.badlogic.gdx.scenes.scene2d.Touchable; import com.badlogic.gdx.scenes.scene2d.ui.Image; import com.badlogic.gdx.scenes.scene2d.ui.ImageButton; import com.badlogic.gdx.scenes.scene2d.ui.ScrollPane; import com.badlogic.gdx.scenes.scene2d.ui.Skin; import com.badlogic.gdx.scenes.scene2d.ui.Table; import com.badlogic.gdx.scenes.scene2d.utils.ClickListener; import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable; import com.swallowgames.supermario.game.Assets; import com.swallowgames.supermario.screen.MainScreen; import com.swallowgames.supermario.utils.Utils; public class ThemeScrollPanel extends ScrollPane{ private ButtonClickListener clickListener; private MainScreen mainScreen; public ThemeScrollPanel(Actor widget, Skin skin) { super(widget, skin); } public ThemeScrollPanel (Actor widget, ScrollPaneStyle style) { super(widget, style); } public ThemeScrollPanel init(){ clickListener = new ButtonClickListener(); Table table = new Table(); table.debug(); ImageButton themeBackground = new ImageButton(new TextureRegionDrawable(Assets.instance.assetUI.theme1), new TextureRegionDrawable(Assets.instance.assetUI.theme1p)); themeBackground.setUserObject(0); themeBackground.addCaptureListener(clickListener); table.add(themeBackground); table.columnDefaults(0); themeBackground = new ImageButton(new TextureRegionDrawable(Assets.instance.assetUI.theme2), new TextureRegionDrawable(Assets.instance.assetUI.theme2p)); themeBackground.setUserObject(1); themeBackground.setTouchable(Touchable.disabled); themeBackground.addCaptureListener(clickListener); Image lock = new Image(new TextureRegionDrawable(Assets.instance.assetUI.lock)); lock.setPosition((themeBackground.getWidth() - lock.getWidth())/2, (themeBackground.getHeight() - lock.getHeight())/2); themeBackground.addActor(lock); table.add(themeBackground).width(themeBackground.getWidth()).height(themeBackground.getHeight()); table.columnDefaults(1); themeBackground = new ImageButton(new TextureRegionDrawable(Assets.instance.assetUI.theme3), new TextureRegionDrawable(Assets.instance.assetUI.theme3p)); themeBackground.setUserObject(2); themeBackground.setTouchable(Touchable.disabled); themeBackground.addCaptureListener(clickListener); lock = new Image(new TextureRegionDrawable(Assets.instance.assetUI.lock)); lock.setPosition((themeBackground.getWidth() - lock.getWidth())/2, (themeBackground.getHeight() - lock.getHeight())/2); themeBackground.addActor(lock); table.add(themeBackground).width(themeBackground.getWidth()).height(themeBackground.getHeight());; table.columnDefaults(2); themeBackground = new ImageButton(new TextureRegionDrawable(Assets.instance.assetUI.theme4), new TextureRegionDrawable(Assets.instance.assetUI.theme4p)); themeBackground.setUserObject(3); themeBackground.setColor(Color.GRAY); themeBackground.setTouchable(Touchable.disabled); themeBackground.addCaptureListener(clickListener); lock = new Image(new TextureRegionDrawable(Assets.instance.assetUI.lock)); lock.setPosition((themeBackground.getWidth() - lock.getWidth())/2, (themeBackground.getHeight() - lock.getHeight())/2); themeBackground.addActor(lock); lock.setColor(Color.GRAY); table.add(themeBackground).width(themeBackground.getWidth()).height(themeBackground.getHeight());; table.columnDefaults(3); table.pack(); setWidget(table); setScrollingDisabled(false, true); addListener(new InputListener() { public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) { event.stop(); return true; } }); setSmoothScrolling(true); setFlickScroll(false); setSize(themeBackground.getWidth()*2, table.getHeight()); setPosition(Utils.xAxisCenter(getWidth()), Utils.yAxisCenter(getHeight()) - 20); return this; } public void setMainScreen(MainScreen mainScreen) { this.mainScreen = mainScreen; } class ButtonClickListener extends ClickListener { @Override public void touchUp(InputEvent event, float x, float y, int pointer, int button) { super.touchUp(event, x, y, pointer, button); Actor actor = event.getListenerActor(); Integer themeIndex = (Integer)actor.getUserObject(); mainScreen.addLevelWindow(themeIndex); } } }3、手势监听
import com.badlogic.gdx.input.GestureDetector.GestureAdapter; public class MainScreenGestureListener extends GestureAdapter{ private LevelWindow levelWindow; private ThemeScrollPanel themeScrollPanel; float panx = 0f; float pany = 0f; float panDeltaX = 0f; float panDeltaY = 0f; @Override public boolean pan(float x, float y, float deltaX, float deltaY) { if(levelWindow != null && levelWindow.getColor().a != 0f){ this.panx = x; this.pany = y; this.panDeltaX = deltaX; this.panDeltaY = deltaY; return true; }else if(themeScrollPanel != null && themeScrollPanel.isVisible()){ themeScrollPanel.setScrollX(themeScrollPanel.getScrollX()-deltaX); return true; }else{ return false; } } public void setLevelWindow(LevelWindow levelWindow) { this.levelWindow = levelWindow; } public void setThemeScrollPanel(ThemeScrollPanel themeScrollPanel) { this.themeScrollPanel = themeScrollPanel; } @Override public boolean panStop(float x, float y, int pointer, int button) { if(levelWindow != null && levelWindow.isVisible()){ if(panx == x && pany ==y && panDeltaX < 0f){//向左滑动 levelWindow.nextPage(); } if(panx == x && pany ==y && panDeltaX > 0f){//向右滑动 levelWindow.prevPage(); } return true; }else{ return false; } } }4、代码说明
ScrollPane里面的内容是几张图片,使用的是一个Table组件布局。
需要注意的几句代码:
//控制位水平滑动
setScrollingDisabled(false, true);
//需要加上,具体也不知道是干叼的
addListener(new InputListener() {
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
event.stop();
return true;
}
});
//看方法名就知道是干嘛的
setSmoothScrolling(true);
//不显示自带的滚动条
setFlickScroll(false);
手势监听器,不清楚的可以去<a href="www.baidu.com">百度</a>
@Override
public boolean pan(float x, float y, float deltaX, float deltaY) {
if(levelWindow != null && levelWindow.getColor().a != 0f){
this.panx = x;
this.pany = y;
this.panDeltaX = deltaX;
this.panDeltaY = deltaY;
return true;
}else if(themeScrollPanel != null && themeScrollPanel.isVisible()){
themeScrollPanel.setScrollX(themeScrollPanel.getScrollX()-deltaX);
return true;
}else{
return false;
}
}
这段代码,其中themeScrollPanel.setScrollX(themeScrollPanel.getScrollX()-deltaX);就是通过手势来移动滚动组件,
deltaX就是移动的速度。
标签:style blog http io ar color os 使用 sp
原文地址:http://blog.csdn.net/xwl617756974/article/details/41929351