Libgdx align does not work

问题

After scaling down "Forgot Password:(" button, seems like its cell did not scale down. The result for that is that cell contents are in the bottom left of the cell. I need it to be aligned to the center or I need to scale down the cell to content's size.

Here is the screenshot:

And the code:

 Table tableRoot = new Table();
 tableRoot.setFillParent(true);
 tableRoot.padTop(40);
 tableRoot.align(Align.center);

 final Label hint = new Label("Wrong password", Utility.UI_SKIN, "default-text");
 hint.setAlignment(Align.center);
 hint.setFontScale(1.3f);

 final Label question = new Label("Return to login screen?", Utility.UI_SKIN, "default-text");
 question.setAlignment(Align.center);

 Table table = new Table();
 final TextButton yesButton = new TextButton("Yes", Utility.UI_SKIN, "login-window-button");
 final TextButton forgotButton = new TextButton("Forgot password:(", Utility.UI_SKIN, "login-window-button");
 forgotButton.setTransform(true);
 forgotButton.setScale(0.7f);

 table.add(yesButton).pad(10).row();
 table.add(forgotButton).pad(10).align(Align.center); //align here does not work

 tableRoot.add(hint).growX().row();
 tableRoot.add().grow().row();
 tableRoot.add(question).growX().padBottom(20).row();
 tableRoot.add(table).growX().row();
 tableRoot.add().grow().row();
 tableRoot.add().grow().row();
 tableRoot.pack();

What have I done wrong or missed?

回答1:

Scaling an Actor does not adjust its preferred size. You have many ways to face this, choose the one you like the most.

scale the actor around its center. Call forgotButton.setOrigin(Align.center)
scale the font of the button, not the button. forgotButton.getLabel().setFontScale(.7f)
size the table's cell: table.add(forgotButton).pad(10).prefWidth(forgotButton.getPrefWith() * .7f)

来源：https://stackoverflow.com/questions/50600348/libgdx-align-does-not-work

标签

java

layout

libgdx