PopupWindow无法在真实设备上呈现

时间：2020-06-07 20:15:54

标签： java android xml popupwindow

我最近在PopupWindow中设计了一个菜单。应该允许用户选择日期和时间。当用户选择一个项目时，背景应更改为浅蓝色，文本应更改为黑色。然后，如果用户再次单击，则该项目的背景应切换回白色，文本变为灰色。

这在模拟器上效果很好。我已经在Nexus 6和Pixel 3 XL上进行了测试。

但是，在物理设备上会发生一些奇怪的事情。当我单击某个项目时，其背景有时会消失，显示其背后的活动。其他时候，它会闪烁为蓝色背景，甚至会更改屏幕不同部分区域的背景。尽管如此，在适当更改背景的情况下，它有时仍会按预期工作。测试两部手机时，我会遇到这种行为：小型摩托罗拉和大型三星。

为解决此问题，我尝试了多种解决方案。例如，我玩过基本的PopupWindow选项，例如setOutsideTouchable和focusable。我还摆弄了自己的布局，例如为每个单独的项目设置不同的背景，并在通货膨胀期间分配根。另外，我尝试将变量设置为全局弹出窗口，并在后台更改后重置某些功能。但是，这些尝试均未产生任何结果。该窗口仍然可以在仿真器上正常运行，但不能在实际设备上运行。

感谢您的帮助。以下是指向物理设备上行为的屏幕截图以及代码段的链接。提前致谢。

https://imgur.com/a/1K9pSHi上的屏幕截图

1。设置弹出窗口的Java代码 

public void showDurationPopup(View v) {
        LayoutInflater inflater = (LayoutInflater) 
        this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View layout = inflater.inflate(R.layout.post_duration_popup,null);
        addDayOpsToViews(inflater,layout);
        addHourOpsToViews(inflater,layout);
        final PopupWindow popup = new PopupWindow(layout, ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT, false);
        popup.setOutsideTouchable(false);
        popup.update();
        popup.showAtLocation(layout, Gravity.CENTER, 0, 0);
        setPopupFinishBtnListener(layout,popup);
    }
    private void addDayOpsToViews(LayoutInflater inflater,View popupLayout){
        LinearLayout daysListView = popupLayout.findViewById(R.id.daysOpsList);
        View newItem;
        // Set items for days 1-29
        for(int d = 1;d<=29;d++){
            newItem = inflater.inflate(R.layout.duration_item,null);
            TextView contentView = newItem.findViewById(R.id.durItemContent);
            contentView.setText(Integer.toString(d));
            daysListView.addView(newItem);
            setDurItemListener(daysListView,newItem,d-1,0);
        }
        // Load in previously selected pos
        adjustDurItemBackgrounds(daysListView,0);
    }
    private void addHourOpsToViews(LayoutInflater inflater,View popupLayout){
        View newItem;
        LinearLayout hoursListView = popupLayout.findViewById(R.id.hoursOpsList);
        // Set items for hours 0-23
        for(int h = 0;h<=23;h++){
            newItem = inflater.inflate(R.layout.duration_item,null);
            TextView contentView = newItem.findViewById(R.id.durItemContent);
            contentView.setText(Integer.toString(h));
            hoursListView.addView(newItem);
            setDurItemListener(hoursListView,newItem,h,1);
        }
        // Load in previously selected pos
        adjustDurItemBackgrounds(hoursListView,1);
    }

2。用于onClick响应的Java代码 

// Set onClickListener for an individual duration item
    // Type 0 is day, type 1 is hour
    private void setDurItemListener(final View listView,
                                    final View newItem, final int position, final int type){
        newItem.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(!(selDurationPos.get(type) == position)) {
                    selDurationPos.set(type, position);
                }
                else{
                    selDurationPos.set(type, -1);
                }
                adjustDurItemBackgrounds((ViewGroup)listView,type);
            }
        });
    }
    private void adjustDurItemBackgrounds(ViewGroup listView,int type){
        int numChildren = listView.getChildCount();
        View currChild;
        for(int c=0; c<numChildren; c++){
            currChild = listView.getChildAt(c);
            if(c==selDurationPos.get(type)){

         ((TextView)currChild.findViewById(R.id.durItemContent)).setTextColor(Color.BLACK);
                currChild.setBackgroundColor(Color.CYAN);
            }
            else{

          ((TextView)currChild.findViewById(R.id.durItemContent)).setTextColor(Color.GRAY);
                currChild.setBackgroundColor(Color.WHITE);
            }
        }
    }

3。单个项目的布局（天或小时） 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:background="@color/white"
    >
    <TextView
        android:id="@+id/durItemContent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24sp"
        android:textStyle="bold"
        android:textColor="@color/gray"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/blue"
        />
</LinearLayout>

4。弹出窗口的布局： 

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <LinearLayout
        android:id="@+id/daysWrapper"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:layout_marginStart="30dp"
        android:orientation="vertical"
        android:layout_toStartOf="@+id/vertSepLine"
        android:background="@color/white"
        android:layout_centerVertical="true"
        android:layout_centerInParent="true"
        android:touchscreenBlocksFocus = "false"
        >
        <TextView
            android:id="@+id/daysTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Days"
            android:background="@color/white"
            android:textStyle="bold"
            android:textColor="@color/blue"
            android:textSize="22sp"
            android:layout_gravity="center_horizontal"
            />
        <TextView
            android:id="@+id/vertULine1"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/cyanBlue" />
        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/white"
            >
            <LinearLayout
                android:id="@+id/daysOpsList"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:background="@color/white"
                >
        </LinearLayout>
        </ScrollView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/hoursWrapper"
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:layout_marginEnd="30dp"
        android:layout_toEndOf="@+id/vertSepLine"
        android:orientation="vertical"
        android:background="@color/white"
        android:layout_alignTop="@id/daysWrapper"
        android:touchscreenBlocksFocus = "false"
        >
        <TextView
            android:id="@+id/hoursTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Hours"
            android:background="@color/white"
            android:layout_gravity="center_horizontal"
            android:textStyle="bold"
            android:textColor="@color/blue"
            android:textSize="22sp"
            />
        <TextView
            android:id="@+id/vertULine2"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/cyanBlue" />
        <ScrollView
            android:layout_width="match_parent"
            android:background="@color/white"
            android:layout_height="wrap_content"
            >
            <LinearLayout
                android:id="@+id/hoursOpsList"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:background="@color/white"
                >
            </LinearLayout>
        </ScrollView>
    </LinearLayout>

    <TextView
        android:id="@+id/leftVertSep"
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:layout_alignTop="@id/daysWrapper"
        android:layout_above="@id/finishButton"
        android:layout_alignStart="@id/horizSepLine"
        android:background="@color/cyanBlue" />
    <TextView
        android:id="@+id/rightVertSep"
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:layout_alignTop= "@+id/horizSepLine"
        android:layout_above="@id/finishButton"
        android:layout_alignEnd="@id/horizSepLine"
        android:background="@color/cyanBlue" />
    <TextView
        android:id="@+id/vertSepLine"
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:layout_alignTop= "@+id/horizSepLine"
        android:layout_centerHorizontal="true"
        android:layout_above="@id/finishButton"
        android:background="@color/cyanBlue" />
    <TextView
        android:id="@+id/horizSepLine"
        android:layout_width="match_parent"
        android:layout_height="20dp"
        android:layout_above="@+id/daysWrapper"
        android:layout_marginStart="30dp"
        android:layout_marginEnd="30dp"
        android:background="@color/cyanBlue" />
    <Button
        android:id="@+id/finishButton"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_marginStart="30dp"
        android:layout_marginEnd="30dp"
        android:text="Finish"
        android:gravity="center"
        android:textStyle="bold"
        android:textColor="@color/white"
        android:background="@color/blue"
        android:layout_below="@+id/hoursWrapper"
        />
</RelativeLayout>

5。包装布局（简化）： 

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".PostCreationNew.QuestionChallengeCreation"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


         <RelativeLayout
            android:id="@+id/durationWrapper"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:layout_marginStart="30dp"
            android:layout_marginEnd="30dp"
            android:layout_below="@+id/question_deadline">

            <TextView
                android:id="@+id/durationTitleV"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Duration*"
                android:layout_marginStart="10dp"
                android:textColor="@color/black"
                android:layout_marginBottom="10dp"
                android:textStyle="bold"
                />
            <ImageView
                android:id="@+id/durationHintBtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/ic_error_outline_grey_24dp"
                android:layout_toEndOf="@+id/durationTitleV"
                android:layout_alignTop="@+id/durationTitleV"
                android:onClick="showDurationHint"
                />

            <RelativeLayout
                android:id="@+id/durationBody"
                android:layout_width="wrap_content"
                android:layout_height="50dp"
                android:layout_below="@+id/durationTitleV"
                android:onClick="showDurationPopup"
                >
                <RelativeLayout
                    android:id="@+id/wrapper"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    >
                    <TextView
                        android:id="@+id/currDurInfoView"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:textColor="@color/blue"
                        android:layout_marginStart="10dp"
                        android:textStyle="bold"
                        android:textSize="22sp"
                        android:visibility="gone"
                        android:onClick="showDurationPopup"
                        android:drawableEnd="@drawable/ic_arrow"
                        />
                    <TextView
                        android:id="@+id/question_duration_edit"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:hint="click here"
                        android:paddingLeft="10dp"
                        android:layout_marginBottom="10dp"
                        android:layout_below="@id/currDurInfoView"
                        />
                </RelativeLayout>
                <TextView
                    android:id="@+id/underline"
                    android:layout_width="wrap_content"
                    android:layout_height="1dp"
                    android:layout_alignBottom="@+id/wrapper"
                    android:layout_alignStart="@+id/wrapper"
                    android:layout_alignEnd="@+id/wrapper"
                    android:background="@color/blue"
                    />
            </RelativeLayout>
        </RelativeLayout>
</ScrollView>

0 个答案:

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