Android 8.0中的AlertDialog Oreo缺少消息文本

Question

我有几部手机，一部运行Android 6.0 Marshmallow的infinix热门笔记本和运行最新最好的Android 8.0 Oreo的Nexus 6P。

我正在测试一个应用程序，该应用程序只允许用户在特定位置附近输入数据时我注意到在Oreo上我的AlertDialogs中的所有消息都没有显示。它们显示为空白（或者可能以白色文字或其他颜色着色）。

我在非洲，我正在支持运行android 9的设备 （旧手机永远不会被丢弃，直到它们到期为止） 所以gradle设置是
minSdkVersion 9
targetSdkVersion 22
compileSdkVersion 25
buildToolsVersion '25 .0.0'

我附上了Nexus和Infinix对话框的截图。 任何人都知道如何绕过这种行为？以下是两个设备中使用的完整代码

提前感谢任何花时间查看此问题的人。

   private void showNotNearOutlet(ProximityToOutlet proximityToOutlet, String OutletName) {
    String strMsg = "";
    int intAllowedProximity = GSR.getSavedSettings.getAllowedProximityToOutletMeters();

    float floatDistanceFromOutlet = proximityToOutlet.getFltDistanceBetweenCurrentLocAndOutlet();
    String strDistance = String.valueOf(df.format(floatDistanceFromOutlet)) + "m";
    if (floatDistanceFromOutlet > 1000) {

        strDistance = df.format(floatDistanceFromOutlet / 1000) + "Km";
    }
    final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    alertDialogBuilder.setTitle("Cannot start outlet!");
    if (floatDistanceFromOutlet != -99) { /*means we cant get a good location fix at the moment*/
        strMsg = "GPS shows your current location as being " + strDistance + " from " + OutletName + " .\n\nYou must be at least " + intAllowedProximity + " Meters near the Outlet to start it.";
    } else {
        strMsg = "Cannot Start outlet because your current GPS position is undetermined.\nTap on 'Locate Me' button and wait till you get a GPS Fix or Accuracy is within 20meters.\n\nTo start an Outlet you must be within " + intAllowedProximity + " meters of it.";
    }


    alertDialogBuilder.setCancelable(true);
    alertDialogBuilder.setIcon(R.drawable.red_gps_icon);
    alertDialogBuilder.setMessage(strMsg);
    alertDialogBuilder.setPositiveButton("Close", new DialogInterface.OnClickListener() {

        public void onClick(DialogInterface dialog, int which) {
            //fetchOutletsForSpinner();
            setSpinnerToSelectOutlet();
            dialog.dismiss();
        }

    });


    alertGPS = alertDialogBuilder.create();
    if (!MainActivity.this.isFinishing()) {
        //show dialog
        alertGPS.show();
        blnGPSAlertIsVisible = true;
    }


}

[在Android Oreo中缺少AlertDialog文本（左）。有趣的是，在8.0之前的版本中缺少gps图标[1] 1（右）

Answer 1

ContentPage在API级别22中已弃用，请使用android.util.FloatMath代替API＆gt; 21。

同时将compileSdkVersion 25改为26，buildToolsVersion '25 .0.0'改为'26 .0.2'