Popup（使用PopupWindow或Dialog）填充屏幕的宽度，没有明显的原因

本文介绍了Popup（使用PopupWindow或Dialog）填充屏幕的宽度，没有明显的原因的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我试图让一个弹出窗口行为！ =）

问题是弹出窗口填充整个屏幕的宽度，即使布局清楚地表示它应该是wrap_content。如果我使用Dialog或PopupWindow，这并不重要。

首先，弹出窗口的XML布局，popup_message.xml：

<？xml version =1.0encoding =utf-8？> < LinearLayout xmlns：android =schemas.android/apk/res/android android：layout_width =wrap_content android：layout_height =match_parent android：layout_margin =20dp android：background =@ android：color / transparent android：orientation =vertical> < LinearLayout android：layout_width =match_parent android：layout_height =40dp android：orientation =horizo​​ntal android： layout_gravity =center> < TextView android：layout_width =match_parent android：layout_height =fill_parent android：layout_gravity =center android： background =@ android：color / transparent android：gravity =center_vertical | center_horizo​​ntal android：orientation =horizo​​ntal android：paddingLeft =10dp android ：text =@ string / new_message android：textColor =＃000000 android：textAllCaps =true> < / TextView> < / LinearLayout> < RelativeLayout android：layout_width =wrap_content android：layout_height =wrap_content android：padding =15dp android： background =＃ffffff android：gravity =center_horizo​​ntal android：orientation =vertical> < TextView android：id =@ + id / popup_message_textView android：layout_width =wrap_content android：layout_height =wrap_content android：textAppearance =？android：attr / textAppearanceMedium android：textCursorDrawable =@ null> < / TextView> < Button android：id =@ + id / jobview_pickup_start_submit android：layout_width =fill_parent android：layout_height =35dp android：layout_below =@ + id / popup_message_textView android：layout_gravity =center_vertical | center_horizo​​ntal android：layout_marginBottom =15dp android：layout_marginTop =15dp android：gravity =center_horizo​​ntal android：text =Confirm android：textColor =＃000000/> < / RelativeLayout> < / LinearLayout>

我正在使用的代码：

LayoutInflater inflater =（LayoutInflater）getSystemService（Context.LAYOUT_INFLATER_SERVICE）; 查看输入= inflater.inflate（R.layout.popup_message，null）; PopupWindow pw = new PopupWindow（input，LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，true）; 查看v = findViewById（R.id.main_deviceInfoBar）; pw.showAtLocation（v，Gravity.CENTER，0，0）;

我也尝试过：

对话框dialogManualStart = new Dialog（MainActivity.this）; dialogManualStart.getWindow（）。setBackgroundDrawableResource（R.color.transparent）; dialogManualStart.requestWindowFeature（MainActivity.this.getWindow（）。FEATURE_NO_TITLE）; dialogManualStart.setContentView（input）; dialogManualStart.show（）;

总是，无论我使用什么代码，看起来像这样：

您可以看到，它总是填补屏幕的宽度。

问题：有谁可以告诉我为什么？

========编辑1 =============

我更改了按钮到wrap_content（根据Boogers的建议），然后看起来像这样：

这是非常奇怪的行为，而不是我的预期。

如果我将其更改为match_parent，则返回full width，即从左到右扩展。

解决方案

这是您的问题：

< Button android：id =@ + id / jobview_pickup_start_submit更改为fill_parent到wrap_content或match_parent

I am trying to get a popup to behave! =)

The problem is that the popup "fills the width" of the entire screen, even though the layout clearly says that it should "wrap_content". It doesnt matter if I use Dialog or PopupWindow.

First, the XML layout of the popup, popup_message.xml:

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="schemas.android/apk/res/android" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_margin="20dp" android:background="@android:color/transparent" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="40dp" android:orientation="horizontal" android:layout_gravity="center" > <TextView android:layout_width="match_parent" android:layout_height="fill_parent" android:layout_gravity="center" android:background="@android:color/transparent" android:gravity="center_vertical|center_horizontal" android:orientation="horizontal" android:paddingLeft="10dp" android:text="@string/new_message" android:textColor="#000000" android:textAllCaps="true" > </TextView> </LinearLayout> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="15dp" android:background="#ffffff" android:gravity="center_horizontal" android:orientation="vertical" > <TextView android:id="@+id/popup_message_textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceMedium" android:textCursorDrawable="@null" > </TextView> <Button android:id="@+id/jobview_pickup_start_submit" android:layout_width="fill_parent" android:layout_height="35dp" android:layout_below="@+id/popup_message_textView" android:layout_gravity="center_vertical|center_horizontal" android:layout_marginBottom="15dp" android:layout_marginTop="15dp" android:gravity="center_horizontal" android:text="Confirm" android:textColor="#000000" /> </RelativeLayout> </LinearLayout>

And the code I am using:

LayoutInflater inflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); View input = inflater.inflate(R.layout.popup_message, null); PopupWindow pw = new PopupWindow(input, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, true); View v = findViewById(R.id.main_deviceInfoBar); pw.showAtLocation(v, Gravity.CENTER, 0, 0);

I have also tried this:

Dialog dialogManualStart = new Dialog(MainActivity.this); dialogManualStart.getWindow().setBackgroundDrawableResource(R.color.transparent); dialogManualStart.requestWindowFeature(MainActivity.this.getWindow().FEATURE_NO_TITLE); dialogManualStart.setContentView(input); dialogManualStart.show();

And it always, no matter what code I use, looks like this:

As you can see, its always filling the width of the screen.

Question: Can anyone tell me why?

======== EDIT 1 =============

I changed the Button to "wrap_content" (according to Boogers suggestion), and then it looks like this:

This is very strange behaviour, not what I expected.

If I change it to "match_parent", its back to "full width", ie it extends all the way from left to right.

解决方案

This is your problem:

<Button android:id="@+id/jobview_pickup_start_submit" android:layout_width="fill_parent" ...

Change that from "fill_parent" to "wrap_content" or "match_parent"