使用提示打开 GPS 后刷新地图/活动

Question

使用提示打开 GPS 后刷新地图/活动。 我已经这样做了，但它不会刷新活动。 这是我的代码：

public void showSettingsAlert(){

    AlertDialog.Builder alertDialog = new AlertDialog.Builder(HomeActivity.this);

    // Setting Dialog Title
    alertDialog.setTitle("GPS is settings");

    // Setting Dialog Message
    alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

    // Setting Icon to Dialog
    alertDialog.setIcon(R.mipmap.ic_launcher);

    // On pressing Settings button
    alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog,int which) {
            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            HomeActivity.this.startActivity(intent);
            loadData();
        }
    });

    // on pressing cancel button
    alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            dialog.cancel();
        }
    });

    // Showing Alert Message
    alertDialog.show();
}

如何刷新活动？

checkGPS();

私人无效 checkGPS() { if (!SmartLocation.with(this).location().state().locationServicesEnabled() || !SmartLocation.with(this).location().state().isAnyProviderAvailable()) { maketoast("定位服务未开启！！"); 显示设置警报（）； } }

Answer 1

@Override
protected void onResume() {
    super.onResume();

    if(GPS on){
         activity refresh..
    }else{
         showSettingsAlert();
    }
}