我正在处理一个项目，我想更改微调器下拉菜单的选择颜色。我使用以下代码。
android:dropDownSelector="#ffffff"
但它不起作用请建议任何方法。谢谢
这是我的代码
<Spinner
android:id="@+id/spinner2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:spinnerMode="dropdown"
android:textColor="#ffffff"
android:textSize="19sp"
android:popupBackground="#80000000"
android:dropDownSelector="#ffffff"
android:background="@drawable/spinner"
android:layout_marginRight="13dp"
android:gravity="center_vertical"
android:layout_marginLeft="13dp"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
view_spinner_item
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#8d95a7"
android:text="Gender"
android:textSize="17sp"
android:drawableRight="@drawable/iconarrow3"
/>
Spinner代码
Spinner spinner2 = (Spinner) findViewById(R.id.spinner2);
String[] items2 = new String[]{"Male","Female"};
ArrayAdapter<String> adapter2 = new ArrayAdapter<String>(
this,
R.layout.view_spinner_item,
items2
);
adapter2.setDropDownViewResource(android.R.layout.simple_spinner_item);
spinner2.setAdapter(adapter2);
答案 0 :(得分：1)
在style.xml中添加以下代码
<style name="AppSpinnerDropDownItem" parent="Base.Widget.AppCompat.DropDownItem.Spinner">
<item name="android:background">@drawable/selector_spinner_item</item>
</style>
并将您的风格添加到您的应用主题
<item name="android:spinnerDropDownItemStyle">@style/AppSpinnerDropDownItem</item>
selector_spinner_item.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:drawable="@drawable/layers_spinner_item_selected"></item>
<item android:state_checked="false" android:drawable="@drawable/layers_spinner_item"></item>
<item android:drawable="@drawable/layers_spinner_item"></item>
你也可以自定义微调器
答案 1 :(得分：1)
在某些旧版本的Android上，这会改变所有微调器的颜色，但是如果你可以的话mSpinner.getBackground().setColorFilter(ContextCompat.getColor(getContext(), R.color.blue), PorterDuff.Mode.SRC_ATOP);
答案 2 :(得分：0)
我认为这会对你有帮助
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Simple Spinner Android Example
initSimpleSpinner();
//Android Custom Spinner Example Programmatically
initCustomSpinner();
}
private void initCustomSpinner() {
Spinner spinnerCustom = (Spinner) findViewById(R.id.spinnerCustom);
// Spinner Drop down elements
ArrayList<String> languages = new ArrayList<String>();
languages.add("Andorid");
languages.add("IOS");
languages.add("PHP");
languages.add("Java");
languages.add(".Net");
CustomSpinnerAdapter customSpinnerAdapter = new CustomSpinnerAdapter(SpinnerMainActivity.this, languages);
spinnerCustom.setAdapter(customSpinnerAdapter);
spinnerCustom.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
Toast.makeText(parent.getContext(), "Android Custom Spinner Example Output..." + item, Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
private void initSimpleSpinner() {
// Spinner element
Spinner spinner = (Spinner) findViewById(R.id.spinner);
// Spinner Drop down elements
List<String> languages = new ArrayList<String>();
languages.add("Andorid");
languages.add("IOS");
languages.add("PHP");
languages.add("Java");
languages.add(".Net");
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, languages);
// Drop down layout style - list view with radio button
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner.setAdapter(dataAdapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
Toast.makeText(parent.getContext(), "Android Simple Spinner Example Output..." + item, Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
public class CustomSpinnerAdapter extends BaseAdapter implements SpinnerAdapter {
private final Context activity;
private ArrayList<String> asr;
public CustomSpinnerAdapter(Context context, ArrayList<String> asr) {
this.asr = asr;
activity = context;
}
public int getCount() {
return asr.size();
}
public Object getItem(int i) {
return asr.get(i);
}
public long getItemId(int i) {
return (long) i;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
TextView txt = new TextView(SpinnerMainActivity.this);
txt.setPadding(16, 16, 16, 16);
txt.setTextSize(18);
txt.setGravity(Gravity.CENTER_VERTICAL);
txt.setText(asr.get(position));
txt.setTextColor(Color.parseColor("#000000"));
return txt;
}
public View getView(int i, View view, ViewGroup viewgroup) {
TextView txt = new TextView(SpinnerMainActivity.this);
txt.setGravity(Gravity.CENTER);
txt.setPadding(16, 16, 16, 16);
txt.setTextSize(16);
txt.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.mipmap.ic_launcher, 0);
txt.setText(asr.get(i));
txt.setTextColor(Color.parseColor("#000000"));
return txt;
}
}
并添加您的可绘制文件
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<solid android:color="@android:color/white"/>
<corners android:radius="4dp"></corners>
<stroke android:color="#cccccc" android:width="1dp"/>
</shape>
Xml文件代码
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:padding="10dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="Simple Spinner"
android:layout_marginBottom="5dp"/>
<Spinner
android:spinnerMode="dropdown"
android:id="@+id/spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:text="Custom Spinner"
android:layout_marginBottom="5dp"/>
<Spinner
android:background="@drawable/spinner"
android:spinnerMode="dropdown"
android:id="@+id/spinnerCustom"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
答案 3 :(得分：-1)
您可以使用
而不是android:dropDownSelector="#ffffff"
android:backgroundTint="@android:color/holo_green_dark"
如果api级别大于21或使用自定义微调器下拉图像。