以编程方式设置按钮和textView权重

LinearLayout linearLayout = new LinearLayout(context);
linearLayout.setOrientation(LinearLayout.VERTICAL); // 设置为垂直布局

Button button = new Button(context);
LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(
    LinearLayout.LayoutParams.WRAP_CONTENT,
    LinearLayout.LayoutParams.WRAP_CONTENT,
    1.0f // 设置权重为1，平均分配剩余空间
);
button.setLayoutParams(buttonParams);
linearLayout.addView(button); // 添加到LinearLayout中

TextView textView = new TextView(context);
LinearLayout.LayoutParams textParams = new LinearLayout.LayoutParams(
    LinearLayout.LayoutParams.WRAP_CONTENT,
    LinearLayout.LayoutParams.WRAP_CONTENT,
    2.0f // 设置权重为2，分配的空间是按钮的两倍
);
textView.setLayoutParams(textParams);
linearLayout.addView(textView); // 添加到LinearLayout中