Android 如何更改弹出项目的宽度大小？
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How can I change popup item width size?
提问by Asil ARSLAN
I use popup menu with custom items.Problems like this
我使用带有自定义项目的弹出菜单。像这样的问题
Red lines represents to default width size.
红线代表默认宽度大小。
but i want custom smaller width size of items(represents red lines).
但我想要自定义较小宽度的项目（代表红线）。
public void onClick(View v) {
//Creating the instance of PopupMenu
PopupMenu popup = new PopupMenu(MainLayout.this, mSikBtn);
popup.getMenuInflater().inflate(R.menu.poupup_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
...
return true;
}
});
popup.show();//showing popup menu
}
});
Layout xml file
布局xml文件
<ImageView
android:id="@+id/popupBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/transparent"
android:src="@drawable/selector_sik"
android:layout_weight="1"
android:layout_margin="10dip"
/>
popup_menu.xml file
popup_menu.xml 文件
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/one"
android:title="A)."/>
...
<item
android:id="@+id/three"
android:title="E)."/>
</menu>
Similar question: stackoverflow.comI need to custom popup menu
类似问题：stackoverflow.com我需要自定义弹出菜单
回答by mike20132013
Just like you, I tried a lot to change the width of the popup menu but was unsuccessful. Somehow, I found a solution you might be looking for. First, instead of using popup menu, I used popup window.
就像你一样，我尝试了很多来改变弹出菜单的宽度，但没有成功。不知何故，我找到了您可能正在寻找的解决方案。首先，我没有使用弹出菜单，而是使用弹出窗口。
Step1: Making a row layout:
Step1：制作行布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:background="@android:drawable/list_selector_background"
android:orientation="vertical"
android:padding="3dp">
<TextView
android:id="@+id/ItemA"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="18dp"
android:layout_marginRight="15dp"
android:layout_marginTop="3dp"
android:text="A)"
android:textAppearance="?android:attr/textAppearanceMedium"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/ItemB"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="18dp"
android:layout_marginRight="15dp"
android:layout_marginTop="10dp"
android:text="B)"
android:textAppearance="?android:attr/textAppearanceMedium"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/ItemC"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="18dp"
android:layout_marginRight="15dp"
android:layout_marginTop="10dp"
android:text="C)"
android:textAppearance="?android:attr/textAppearanceMedium"
tools:ignore="HardcodedText" />
<TextView
android:id="@+id/ItemD"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="18dp"
android:layout_marginRight="15dp"
android:layout_marginTop="10dp"
android:text="D)"
android:textAppearance="?android:attr/textAppearanceMedium"
tools:ignore="HardcodedText" />
</LinearLayout>
Step 2: Made a method to initialize popup window:
第 2 步：创建一个初始化弹出窗口的方法：
private PopupWindow initiatePopupWindow() {
try {
mInflater = (LayoutInflater) getApplicationContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = mInflater.inflate(R.layout.row, null);
//If you want to add any listeners to your textviews, these are two //textviews.
final TextView itema = (TextView) layout.findViewById(R.id.ItemA);
final TextView itemb = (TextView) layout.findViewById(R.id.ItemB);
layout.measure(View.MeasureSpec.UNSPECIFIED,
View.MeasureSpec.UNSPECIFIED);
mDropdown = new PopupWindow(layout,FrameLayout.LayoutParams.WRAP_CONTENT,
FrameLayout.LayoutParams.WRAP_CONTENT,true);
Drawable background = getResources().getDrawable(android.R.drawable.editbox_dropdown_dark_frame);
mDropdown.setBackgroundDrawable(background);
mDropdown.showAsDropDown(pop, 5, 5);
} catch (Exception e) {
e.printStackTrace();
}
return mDropdown;
}
Step 3: Simply calling it in the onCreate():
第 3 步：只需在 onCreate() 中调用它：
public class MainActivity extends Activity {
ImageButton red, blue;
private PopupWindow mDropdown = null;
LayoutInflater mInflater;
Button pop;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pop = (Button)findViewById(R.id.button1);
pop.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
initiatePopupWindow();
}
});
}
}
Hope this helps you..If it does, accept my answer..:)
希望这对您有帮助..如果有帮助，请接受我的回答..:)
Here's the screenshot:
这是屏幕截图：
回答by SQLiteNoob
I don't think you can set layout:widthin menu, so you might have to create your own view layout. This might help:
我认为您不能设置layout:widthin menu，因此您可能必须创建自己的视图布局。这可能有帮助：
Set menu items centered and full-width with ActionBarSherlock
使用 ActionBarSherlock 设置居中和全宽的菜单项
http://developer.android.com/guide/topics/resources/menu-resource.html
http://developer.android.com/guide/topics/resources/menu-resource.html
