在布局文件中查找宽度属性的设置,确保其值为match_parent,而不是wrap_content。在代码中也应该相应地设置宽度属性。以下是一个示例代码:
XML布局示例:
Java代码示例:
LinearLayout layout = findViewById(R.id.layout_id);
TextView textView = findViewById(R.id.textView_id);
// 设置布局宽度为match_parent
layout.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT
));
// 设置TextView宽度为match_parent
textView.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT
));