步驟：
int versioncode = 0;
try catch (namenotfoundexception e)
request = new downloadmanager.request(uri.parse(url));
// 設定通知欄標題
request.setnotificationvisibility(downloadmanager.request.visibility_visible_notify_completed);
request.settitle("一儒快遞");//
request.setallowedoverroaming(false);
request.allowscanningbymediascanner();// 可被**掃瞄到
request.setvisibleindownloadsui(true);// 可見和管理
filepath = dir.tostring() + "/" + "insurework" + getversioncode() + ".apk";
// 設定檔案存放目錄
request.setdestinationinexternalfilesdir(this, environment.directory_downloads, "insurework" + getversioncode() + ".apk");
did = downmanager.enqueue(request);
intentfilter filter = new intentfilter();
filter.addaction(downloadmanager.action_download_complete);
filter.addaction(downloadmanager.action_notification_clicked);
receiver = new downloadcompletereceiver();
registerreceiver(receiver, filter);
@override
protected void ondestroy()
private class downloadcompletereceiver extends broadcastreceiver else if (version.sdk_int >= version_codes.o) else , constent.new_8_0_request);
}} else
} catch (exception e)
}} else if (intent.getaction().equals(
downloadmanager.action_notification_clicked))
}}
@override
public void onrequestpermissionsresult(int requestcode, @nonnull string permissions, @nonnull int grantresults)
}
private void installapk()<?xml version="1.0" encoding="utf-8"?>
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