相关疑难解决方法(0)

显示PopupWindow时出现以下错误.错误由行触发:

checkInPopup.showAtLocation((ViewGroup) mapView.getParent(), Gravity.CENTER_HORIZONTAL, 0, 0);

mapView是一个MapView,没有任何东西是空的.堆栈跟踪:

01-08 18:00:09.402: E/AndroidRuntime(27768): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.view.ViewRootImpl.setView(ViewRootImpl.java:513)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:301)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:215)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:140)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.view.Window$LocalWindowManager.addView(Window.java:537)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.widget.PopupWindow.invokePopup(PopupWindow.java:988)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.widget.PopupWindow.showAtLocation(PopupWindow.java:845)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.widget.PopupWindow.showAtLocation(PopupWindow.java:809)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at com.geoloc.ActivityCheckIn.onCreate(ActivityCheckIn.java:50)
01-08 18:00:09.402: E/AndroidRuntime(27768):    at android.app.Activity.performCreate(Activity.java:4465)
01-08 18:00:09.402: E/AndroidRuntime(27768): …

我正在尝试为我的Android应用程序编写新的自定义样式.我需要给风格ERRORTEXT其设置后出现setError在EditText.

我该如何定制它的风格？

例如:我想在style.xml中设置background白色和textColor:蓝色等

我想在用户点击浮动图标时显示自定义弹出菜单

浮动图标使用服务创建,我没有活动

这是我的浮动图标代码

public class copy_actions_service extends Service
{
    ImageView copy_ImageView;
    WindowManager windowManager;
    WindowManager.LayoutParams layoutParams;

    @Override
    public IBinder onBind(Intent arg0)
    {
        // TODO Auto-generated method stub
        return null;
    }

    @Override

    public void onCreate()
    {
        windowManager=(WindowManager)getSystemService(WINDOW_SERVICE);

        copy_ImageView=new ImageView(this);
        copy_ImageView.setImageResource(R.drawable.ic_launcher);
        copy_ImageView.setAlpha(245);
        copy_ImageView.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View arg0)
            {
                showCustomPopupMenu();
            }
        });

        layoutParams=new WindowManager.LayoutParams(
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.TYPE_PHONE,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                PixelFormat.TRANSLUCENT);

        layoutParams.gravity=Gravity.TOP|Gravity.CENTER;
        layoutParams.x=0;
        layoutParams.y=100;

        windowManager.addView(copy_ImageView, layoutParams);

    }

    private void showCustomPopupMenu()
    {
        LayoutInflater layoutInflater=(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view=layoutInflater.inflate(R.layout.xxact_copy_popupmenu, null);

        PopupWindow popupWindow=new PopupWindow();
        popupWindow.setContentView(view);
        popupWindow.setWidth(LinearLayout.LayoutParams.WRAP_CONTENT);
        popupWindow.setHeight(LinearLayout.LayoutParams.WRAP_CONTENT);
        popupWindow.setFocusable(true); …

我正在使用ActionBarSherlock和ViewPagerIndicator将片段显示为选项卡.其中一个片段将项添加到ActionBar:

private String[] mapNames;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setHasOptionsMenu(true);
    // init an String array `mapNames` which is used when populating submenu
    // ...
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {

    inflater.inflate(R.menu.fragment_maps, menu);

    SubMenu mapNamesMenu = menu.findItem(R.id.map_names).getSubMenu();
    mapNamesMenu.clear();
    for (int i=0; i<mapNames.length; i++) {
        mapNamesMenu.add(1, i, Menu.NONE, mapNames[i]);
    }

    super.onCreateOptionsMenu(menu, inflater);
}

在res/menu/fragment_maps.xml我有

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/map_names"
        android:title="Maps"
        android:icon="@drawable/maps_32"
        android:showAsAction="always|withText">
        <menu>
            <item android:id="@+id/placeholder_maps" />
        </menu>
    </item>
</menu> …

我已经找了几个帖子来解决同样的问题,但似乎无法解决我的问题.我在整个应用程序中都使用过微调器,它们工作正常.当我尝试在弹出窗口中使用微调器时,我在选择它时会出错.弹出窗口是添加引用,我已经声明了一个全局ViewGroup变量(即vg_references),可用于检索弹出窗口中的组件.弹出窗口的代码如下.

LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vg_references = (ViewGroup)inflater.inflate(R.layout.reference, null, false);

pw_references = new PopupWindow(vg_references, 
    this.getWindowManager().getDefaultDisplay().getWidth()/100 * 75,
    this.getWindowManager().getDefaultDisplay().getHeight()/100 * 50,
    true);
pw_references.setFocusable(true);
pw_references.showAtLocation((View)view.getParent(), Gravity.CENTER, 0, 0);

this.populateReferenceView();   

然后,这将调用一个函数来填充弹出窗口中的组件(例如,文本字段,微调器,布局等...).此函数的一部分是使用数据库中的字符串列表填充微调器.

// Find the spinner
Spinner spinReferenceSourceTypes = (Spinner) vg_references.findViewById(R.id.spin_referencesSourceTypes);          

// Retrieve the list of reference source types and create an array adapter to attach to the list 
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(
    this, android.R.layout.simple_spinner_item, databaseHelper.getReferenceSourceTypes());
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinReferenceSourceTypes.setAdapter(dataAdapter);

// If there's only 1 item in the dropdown list, disable the dropdown list …

我有一个 android 应用程序，当单击侧栏中的一个选项时，它会转到一个片段，然后转到另一个具有可点击单选按钮的片段。当点击这些时，它会创建一个弹出窗口，其中包含一些文本字段。

基本上这就是流程的走向，

活动 --> 片段 1 --> 片段 2 --> 弹出窗口

我在这个 PopupWindow 上有一个微调器，但是当我单击它选择一个值时，它会引发以下异常。我不明白为什么会这样。

Process: com.informaticsint.claimassistant, PID: 5045
android.view.WindowManager$BadTokenException: Unable to add window -- token android.view.ViewRootImpl$W@945936c is not valid; is your activity running?
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:849)
    at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:337)
    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
    at android.widget.PopupWindow.invokePopup(PopupWindow.java:1329)
    at android.widget.PopupWindow.showAsDropDown(PopupWindow.java:1155)
    at android.widget.ListPopupWindow.show(ListPopupWindow.java:791)
    at android.widget.Spinner$DropdownPopup.show(Spinner.java:1366)
    at android.widget.Spinner.performClick(Spinner.java:828)
    at android.view.View$PerformClick.run(View.java:22526)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:158)
    at android.app.ActivityThread.main(ActivityThread.java:7224)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

这是导致问题的 Spinner 代码。在下面提到的AssignmentDetailsActivity类中，showDamagedItemEntryPopup()方法

    statusSpinner = (Spinner)popupView.findViewById(R.id.popup_status_spinner);
    ArrayAdapter<String> statusSpinnerArrayAdapter …