问题描述
我有这样的 Spinner
:
<Spinner
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/spinner1"
android:background="@drawable/spinner_bg"
android:popupBackground="@drawable/spinner_bg"/>
这是spinner_bg.xml:
<item>
<layer-list>
<item>
<shape>
<gradient
android:startColor="#ffffff"
android:centerColor="#111111"
android:endColor="#000000"
android:angle="-90" />
<stroke
android:width="2dp"
android:color="#ffffff" />
<corners
android:radius="2dp" />
<padding
android:left="10dp"
android:right="10dp"/>
</shape>
</item>
<item >
<bitmap
android:gravity="right"
android:src="@android:drawable/arrow_down_float" />
</item>
</layer-list>
</item>
这是我自定义微调器的代码:
this is my code to Custom spinner :
ArrayAdapter<ClassId> adapter = new ArrayAdapter<ClassId>(getActivity(),
R.layout.list_id, idList);
adapter.setDropDownViewResource(R.layout.list_id_select);
这是list_id.xml的布局:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="true"
android:singleLine="true"
android:ellipsize="end"
android:textColor="#ff0004"
android:textSize="14sp"
android:paddingTop="10dp"
android:paddingBottom="10dp"/>
这是list_id_select.xml的布局:
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="true"
android:singleLine="true"
android:ellipsize="end"
android:textColor="#0004ff"
android:textSize="14sp"
android:checked="true"
android:checkMark="@drawable/custom_checkbox"
android:paddingTop="10dp"
android:paddingBottom="10dp"/>
这是custom_checkbox.xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true"
android:drawable="@android:drawable/checkbox_on_background" />
<item android:state_pressed="true"
android:drawable="@android:drawable/checkbox_on_background" />
<item android:drawable="@android:drawable/checkbox_off_background" />
这是我在下拉显示下拉菜单时的结果:_________________________________________________
__________________________复选框_______________
____文本_________________________________________
this is my result when dropdown of spinner show :_________________________________________________
__________________________checkbox_______________
____text_________________________________________
这意味着文本和复选框不在同一行(复选框高于文本).
怎么解决?
that mean text and checkbox not in line (checkbox higher than text).
how to fix it?
推荐答案
为此你必须创建 Custom Adapter
并设置 TextView
和 CheckBox
> 在下面的方式里面.
For that you have to Create Custom Adapter
and set TextView
and CheckBox
inside that below way.
在xml中定义Spinner
<Spinner
android:id="@+id/spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp" />
在layout
文件夹中创建spinner_item.xml
文件.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="text"
android:textAlignment="gravity" />
<CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true" />
</RelativeLayout>
现在创建可以包含 TextView
和 CheckBox
值的 StateVO.java
类.
Now create StateVO.java
class that can contain the TextView
and CheckBox
value.
public class StateVO {
private String title;
private boolean selected;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
}
现在在您的 Activity
中初始化 Spinner
并在下面设置 CustomAdapter
.
Now in your Activity
inititlize the Spinner
and set CustomAdapter
below way.
final String[] select_qualification = {
"Select Qualification", "10th / Below", "12th", "Diploma", "UG",
"PG", "Phd"};
Spinner spinner = (Spinner) findViewById(R.id.spinner);
ArrayList<StateVO> listVOs = new ArrayList<>();
for (int i = 0; i < select_qualification.length; i++) {
StateVO stateVO = new StateVO();
stateVO.setTitle(select_qualification[i]);
stateVO.setSelected(false);
listVOs.add(stateVO);
}
MyAdapter myAdapter = new MyAdapter(Main2Activity.this, 0,
listVOs);
spinner.setAdapter(myAdapter);
最后创建 CustomAdapter
类,如下所示.
And Finally Create CustomAdapter
class like below way.
MyAdapter.java
public class MyAdapter extends ArrayAdapter<StateVO> {
private Context mContext;
private ArrayList<StateVO> listState;
private MyAdapter myAdapter;
private boolean isFromView = false;
public MyAdapter(Context context, int resource, List<StateVO> objects) {
super(context, resource, objects);
this.mContext = context;
this.listState = (ArrayList<StateVO>) objects;
this.myAdapter = this;
}
@Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return getCustomView(position, convertView, parent);
}
public View getCustomView(final int position, View convertView,
ViewGroup parent) {
final ViewHolder holder;
if (convertView == null) {
LayoutInflater layoutInflator = LayoutInflater.from(mContext);
convertView = layoutInflator.inflate(R.layout.spinner_item, null);
holder = new ViewHolder();
holder.mTextView = (TextView) convertView
.findViewById(R.id.text);
holder.mCheckBox = (CheckBox) convertView
.findViewById(R.id.checkbox);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.mTextView.setText(listState.get(position).getTitle());
// To check weather checked event fire from getview() or user input
isFromView = true;
holder.mCheckBox.setChecked(listState.get(position).isSelected());
isFromView = false;
if ((position == 0)) {
holder.mCheckBox.setVisibility(View.INVISIBLE);
} else {
holder.mCheckBox.setVisibility(View.VISIBLE);
}
holder.mCheckBox.setTag(position);
holder.mCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
int getPosition = (Integer) buttonView.getTag();
if (!isFromView) {
listState.get(position).setSelected(isChecked);
}
}
});
return convertView;
}
private class ViewHolder {
private TextView mTextView;
private CheckBox mCheckBox;
}
}
输出:
这篇关于android微调器下拉复选框的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!