Android：以编程方式设置LinearLayout的重力

Question

我是android编程的新手。

我只是发现xml不是设置布局的唯一方法。因此，我试图了解以编程方式设置的布局。我一直在尝试更改按钮的位置。我如何设置布局重力，以便将按钮定位在预期的轴上，比方说 bottom和center？

顺便说一句，是icicle同样的事情savedInstanceState？

这是我偶然发现的编码。您能告诉我设置重力的正确方法吗？

 @Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    LinearLayout one = new LinearLayout(this);
    myButton1 = new Button1(this);
    one.addView(myButton1,
        new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.WRAP_CONTENT,
            ViewGroup.LayoutParams.WRAP_CONTENT,
            0));
    myButton2 = new Button2(this);
    one.addView(mButton2,
        new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.WRAP_CONTENT,
            ViewGroup.LayoutParams.WRAP_CONTENT,
            0));
    setContentView(one);

Answer 1

我认为，您正在寻找

LinearLayout one = new LinearLayout(this);

        one.setGravity(Gravity.BOTTOM | Gravity.CENTER);  //to show LinearLayout gravity

        Button myButton1 = new Button(this);
        one.addView(myButton1,
                    new LinearLayout.LayoutParams(
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        0));
        myButton1.setText("First");
        myButton1.setGravity(Gravity.CENTER);   //to show text gravity in button

        Button myButton2 = new Button(this);
        one.addView(myButton2,
                    new LinearLayout.LayoutParams(
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        0));
        myButton2.setText("Second");
        myButton2.setGravity(Gravity.CENTER);   //to show text gravity
        setContentView(one);

icicle有时用作参数名称，它只是形式参数之一的占位符onCreate接受一个Bundle参数。该如何称呼取决于您。

LinearLayout的某些属性/sf/answers/1334616601/