iOS 内容安全区域处理

IOS 内容安全区域

html

<meta name="viewport" content="viewport-fit=cover" />

body {
  padding-top: constant(safe-area-inset-top);
  padding-top: env(safe-area-inset-top);
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: constant(safe-area-inset-left);
  padding-left: env(safe-area-inset-left);
  padding-right: constant(safe-area-inset-right);
  padding-right: env(safe-area-inset-right);
}

// 调用 App
function callApp(schema, timeOut) {
  let timer,
    start = new Date().getTime();
  let myPromise = new Promise((resolve, reject) => {
    window.location.href = schema;
    window.addEventListener("visibilitychange", () => {
      if (document.visibilityState === "hidden") {
        clearTimeout(timer);
        resolve();
      }
    });
    timer = setTimeout(() => {
      let end = new Date().getTime();
      if (end - start > timeOut + 1000) {
        clearTimeout(timer);
        resolve();
      } else {
        reject();
      }
    }, timeOut);
  });
  return myPromise;
}