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一、屬性監(jiān)聽刷新

1、聲明屬性

RxInt count = 0.obs;
RxString search = ''.obs;

2、屬性事件監(jiān)聽

    ever(count, (callback) {
      print("用來監(jiān)聽數(shù)字的變化,--$count");
    });

    once(count, (callback) {
      print("只會監(jiān)聽第一次數(shù)字的變化,--$count");
    });

    debounce(count, (callback) {
      print("每次用戶停止輸入1秒時間調(diào)用,--$count");
    },time: Duration(microseconds: 1000));

    interval(count, (callback) {
      print("     //每隔1秒輸出一次 .,--$count");
    },time: Duration(microseconds: 1000));

3、屬性Widget監(jiān)聽

Obx(() {
      int page = count.value; //獲取監(jiān)聽值
      return Text('$page');
})

二、直接刷新UI

1、包裹要刷新的組件

GetBuilder<CounterEasyLogic>(
          builder: (logicGet) => Text(
            '點擊了 ${logicGet.count} 次',
            style: TextStyle(fontSize: 30.0),
          ),
        )

2、執(zhí)行update方法可觸發(fā)刷新

class CounterEasyLogic extends GetxController {
  var count = 0;

  void increase() {
    ++count;
    update();
  }
}