Android AlertDialog在某些设备上不显示整个setMessage

Question

这是一个奇怪的案例，最近刚引起我的注意。我有一个活动，它在创建时显示AlertDialog，以警告用户完成重启所需的过程。在我的设备（Galaxy Nexus）上显示它很好。最近我注意到，在很多其他设备上它只会在被切断之前显示几个字。

        AlertDialog.Builder builder = new AlertDialog.Builder(ReportActivity.this);
        builder.setTitle("Finished!");
        builder.setMessage("Due to the different storage mediums across the various Android devices this app may eb used for, "
                                            +"I've decided not to force a media rescan because depending on your device, "
                                            +"it may or may not even be possible. "
                                            +"This means that you will need to reboot your device or unmount/mount your sdcard in the Settings app before most players will pull in all the information for the songs."
                                            +"\n Please reboot or rescan before claiming that the app did not work.")
               .setCancelable(false)
               .setPositiveButton("Dismiss", new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                                    dialog.dismiss();
                            lv1.setAdapter(new ResultsAdapter(ReportActivity.this, results));
                   }
               });

            AlertDialog alert = builder.create();
            alert.show();

Answer 1

尝试setMessage()，而不是使用setView()，提供您自己的TextView，您可以在其中控制显示的行数。

Answer 2

直接设置视图不起作用。我必须为新行指定\ n，并且还使用android：lines属性定义没有行