android 的view类的setVisibility();值的意思
android view setVisibility():
有三个参数:Parameters:visibility One of VISIBLE
, INVISIBLE
, or GONE,想对应的三个常量值:0、4、8
VISIBLE:0 意思是可见的
INVISIBILITY:4 意思是不可见的,但还占着原来的空间
GONE:8 意思是不可见的,不占用原来的布局空间
View Code
1 LinearLayout num_Layout = (LinearLayout) findViewById(R.id.num_layout);
2 if(numberOfRecord > 0){
3 TextView num = (TextView) findViewById(R.id.num);
4 num.setText(numberOfRecord.toString());
5 num_Layout.setVisibility(0);
6 }
7 else{
8 num_Layout.setVisibility(8);
9 }