Android 带有继承AppCompat主题的图标的动态微调器
我正在努力实现两件事：Android 带有继承AppCompat主题的图标的动态微调器,android,material-design,android-spinner,android-appcompat,android-theme,Android,Material Design,Android Spinner,Android Appcompat,Android Theme,我正在努力实现两件事： 使我的微调器从AppCompat主题继承 尽可能在工具栏弹出菜单中向微调器元素添加图标 由于我无法实现第一点，我将重点关注这一点，但我还想在以后添加图标。现在，我的工具栏弹出菜单继承了AppCompat主题，但微调器没有，如下图所示。第一个图像显示工具栏中的（正确的）弹出菜单，而第二个图像显示微调器中的弹出菜单。这是未继承样式的微调器的示例。还是应该使用这种弹出式菜单样式 我已经尝试了很多东西，所以这个问题可能有多个重复，但我无法让它工作。下面的代码可能有什么错误？正
<resources>
<style name="MyTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="colorPrimary">@color/my_brown</item>
<item name="colorPrimaryDark">@color/my_dark_gray</item>
<item name="colorAccent">@color/my_green</item>
<!-- This is just a test, it makes no difference. -->
<item name="android:spinnerStyle">@style/MySpinnerStyle</item>
</style>
<style name="MyTheme" parent="MyTheme.Base"></style>
<!--
ActionBar style, applied directly to XML elements
-->
<style name="MyActionBarStyle" parent="@style/Widget.AppCompat.ActionBar">
<item name="theme">@style/ThemeOverlay.AppCompat.Dark.ActionBar</item>
<item name="popupTheme">@style/ThemeOverlay.AppCompat.Light</item>
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:background">@color/my_brown</item>
<item name="android:minHeight">?attr/actionBarSize</item>
</style>
<!--
Spinner style, for testing. Also tried applied directly to xml Spinners.
-->
<style name="MySpinnerStyle" parent="@style/Widget.AppCompat.Spinner">
<item name="popupTheme">@style/ThemeOverlay.AppCompat.Light</item>
<item name="android:popupMenuStyle">@style/Widget.AppCompat.Light.PopupMenu</item>
</style>
</resources>
public class MyAdapter extends ArrayAdapter<String>
{
private String[] mCategories;
private int[] mIcons;
public CategoryDropDownAdapter(Context context, int layoutResourceId, String[] categories)
{
super(context, layoutResourceId, categories);
mCategories = categories;
// Add the same icon to all items, just for testing.
mIcons = new int[mCategories.length];
for (int i = 0; i < mIcons.length; i++)
{
mIcons[i] = R.drawable.my_icon;
}
}
/**
* View for a dropdown item.
* */
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent)
{
View rowView = convertView;
if (rowView == null)
{
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
rowView = inflater.inflate(R.layout.my_spinner_categories_dropdown_item, parent, false);
}
TextView categoryText = (TextView) rowView.findViewById(R.id.my_spinner_dropdown_item_text);
categoryText.setText(mCategories[position]);
ImageView icon = (ImageView) rowView.findViewById(R.id.my_spinner_dropdown_item_icon);
icon.setImageResource(mIcons[position]);
return rowView;
}
/**
* The Spinner View that is selected and shown in the *Spinner*, i.e. not the dropdown item.
* */
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
View spinnerView = convertView;
if (spinnerView == null)
{
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
spinnerView = inflater.inflate(R.layout.my_spinner_categories_spinner_item, parent, false);
}
TextView categoryText = (TextView) spinnerView.findViewById(R.id.my_spinner_item_text);
categoryText.setText(mCategories[position]);
return spinnerView;
}
}
MyAdapter adapter = new MyAdapter(getContext(), android.R.layout.simple_spinner_dropdown_item, mCategories);
mSpinner.setAdapter(adapter);
android:theme="@style/MyTheme"
<item name="android:spinnerDropDownItemStyle">@style/MySpinnerItem</item>
- 创建自定义布局
- 创建从
ArrayAdapter继承的自定义适配器 - 实现
方法为每个项目设置不同的图像getCutomView（） - 最后，使用
MyCustomAdapter.createFromResource（this，R.array.my_data，R.layout.my_cutom_item_layout）将适配器设置为微调器
ArrayAdapter<String> adapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, mCategories);
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:textAlignment="inherit"/>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerDropDownItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="?android:attr/dropdownListPreferredItemHeight"
android:ellipsize="marquee"/>
我们真的必须自己为纺纱机实现填充和所有功能吗？从表面上看，它似乎应该是开箱即用的。微调器的外观也是如此，而不仅仅是弹出菜单。例如，其他StackOverflow回答中也提出了这一点。事实上，它是开箱即用的，但由于某些原因，三星设备上的字体颜色不是AppCompat主题中的字体颜色，并且边距与所有设备的溢出菜单不同，这就是为什么我以我在回答中所描述的作为结束。我找不到任何继承该主题的设备。我试过两台三星设备和一台索尼设备以及多台模拟器。也许我必须和你一样做。看起来有点奇怪。
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerDropDownItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="?android:attr/dropdownListPreferredItemHeight"
android:ellipsize="marquee"/>
public class MyAdapter extends ArrayAdapter<String>
{
private String[] mCategories;
private int[] mIcons;
public CategoryDropDownAdapter(Context context, int layoutResourceId, String[] categories)
{
super(context, layoutResourceId, categories);
mCategories = categories;
// Add the same icon to all items, just for testing.
mIcons = new int[mCategories.length];
for (int i = 0; i < mIcons.length; i++)
{
mIcons[i] = R.drawable.my_icon;
}
}
/**
* View for a dropdown item.
* */
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent)
{
View rowView = convertView;
if (rowView == null)
{
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
rowView = inflater.inflate(R.layout.my_spinner_categories_dropdown_item, parent, false);
}
TextView categoryText = (TextView) rowView.findViewById(R.id.my_spinner_dropdown_item_text);
categoryText.setText(mCategories[position]);
ImageView icon = (ImageView) rowView.findViewById(R.id.my_spinner_dropdown_item_icon);
icon.setImageResource(mIcons[position]);
return rowView;
}
/**
* The Spinner View that is selected and shown in the *Spinner*, i.e. not the dropdown item.
* */
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
View spinnerView = convertView;
if (spinnerView == null)
{
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
spinnerView = inflater.inflate(R.layout.my_spinner_categories_spinner_item, parent, false);
}
TextView categoryText = (TextView) spinnerView.findViewById(R.id.my_spinner_item_text);
categoryText.setText(mCategories[position]);
return spinnerView;
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ImageView
android:id="@+id/my_spinner_dropdown_item_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!-- Stolen from android.R.layout.simple_spinner_dropdown_item -->
<TextView
android:id="@+id/my_spinner_dropdown_item_text"
style="?android:attr/spinnerDropDownItemStyle"
android:singleLine="true"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ellipsize="marquee" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<!-- Stolen from android.R.layout.simple_spinner_dropdown_item -->
<TextView
android:id="@+id/my_spinner_item_text"
style="?android:attr/spinnerDropDownItemStyle"
android:singleLine="true"
android:layout_width="0dp"
android:layout_height="48dp"
android:layout_weight="1"
android:ellipsize="marquee" />
</LinearLayout>
MyAdapter adapter = new MyAdapter(getContext(), android.R.layout.simple_spinner_dropdown_item, mCategories);
mSpinner.setAdapter(adapter);