我使用这个库 https://github.com/orhanobut/dialogplus
当我单击一个按钮时，我将打开一个对话框布局，其中包括EditText和Spinner。
问题是我不知道如何在对话框布局打开时设置我的Spinner项目。这个库让我在setOnClickListener下声明我的Spinner，因为我必须使用dialog.getHolderView()来获取视图。我认为这是问题所在，但我不知道如何解决。
在我的代码中，我必须单击Spinner然后添加我的微调器项。
这是我的代码：
public void openSearchLayout() {
DialogPlus dialog = DialogPlus.newDialog(getActivity())
.setContentHolder(new ViewHolder(R.layout.search_layout))
.setGravity(Gravity.TOP)
.setOnClickListener(new OnClickListener() {
@Override
public void onClick(DialogPlus dialog, View view) {
EditText presenterEdit = (EditText) dialog.getHolderView().findViewById(R.id.presenterEdit);
final Spinner searchDate = (Spinner) dialog.getHolderView().findViewById(R.id.searchDate);
// Clear spinner data
dateList.clear();
// Set spinner item function
showRoute(myJson, searchDate);
switch (view.getId()) {
case R.id.searchDate:
searchDate.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// Clear spinner data
arrayList.clear();
// Search the spinner item value list
showDateRoute(myJson, searchDate.getSelectedItem().toString());
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
break;
case R.id.searchButton:
String testString = presenterEdit.getText().toString();
Toast.makeText(getActivity(), testString, Toast.LENGTH_SHORT).show();
break;
}
}
})
.setExpanded(true, 900) // This will enable the expand feature, (similar to android L share dialog)
.create();
dialog.show();
}
这是我的自定义对话框布局：
<?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="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="16dp"
android:paddingTop="16dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/signUpDate"
android:textColor="@android:color/black"
android:textSize="18dp" />
<Spinner
android:id="@+id/searchDate"
android:layout_width="match_parent"
android:layout_height="38dp"
android:layout_gravity="center"
android:layout_marginLeft="24dp"
android:layout_marginRight="16dp"
android:background="@drawable/spinner_arrow"
android:spinnerMode="dropdown"
android:theme="@style/mySpinnerStyle" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingLeft="16dp"
android:paddingTop="16dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/circlePresenter"
android:textColor="@android:color/black"
android:textSize="18dp" />
<EditText
android:id="@+id/presenterEdit"
android:layout_width="match_parent"
android:layout_height="38dp"
android:layout_gravity="center"
android:layout_marginLeft="8dp"
android:layout_marginRight="16dp"
android:background="@drawable/search_edit"
android:spinnerMode="dropdown" />
</LinearLayout>
<Button
android:id="@+id/searchButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="16dp"
android:background="@drawable/corner_search"
android:text="@string/integralDateSearch"
android:textColor="@android:color/white"
android:textSize="20dp" />
</LinearLayout>
任何帮助将不胜感激。提前谢谢。
根据Reaz的回复，我像这样更新：
ViewHolder dialogViewHolder = new ViewHolder(R.layout.search_layout);
LayoutInflater inflater =LayoutInflater.from(getActivity());
final EditText presenterEdit = (EditText) dialogViewHolder.getView(inflater, null).findViewById(R.id.presenterEdit);
final Spinner searchDate = (Spinner) dialogViewHolder.getView(inflater, null).findViewById(R.id.searchDate);
// Clear spinner data
dateList.clear();
// Set spinner item function
showRoute(myJson, searchDate);
DialogPlus dialog = DialogPlus.newDialog(getActivity())
.setContentHolder(dialogViewHolder)
//.....
您可以尝试以下操作，使视图退出对话框初始化。首先初始化视图，填充微调器，然后将其传递给ViewHolder构造函数中的对话框。
我已经测试过了。它在我的设备中工作。
public void openSearchLayout() {
View view = getLayoutInflater().inflate(R.layout.search_layout, null);
final EditText presenterEdit = (EditText) view.findViewById(R.id.presenterEdit);
final Spinner searchDate = (Spinner) view.findViewById(R.id.searchDate);
// Clear spinner data
dateList.clear();
// Set spinner item function
showRoute(searchDate);
DialogPlus dialog = DialogPlus.newDialog(MainActivity.this)
.setContentHolder(new ViewHolder(view))
.setGravity(Gravity.TOP)
.setOnClickListener(new OnClickListener() {
@Override
public void onClick(DialogPlus dialog, View view) {
switch (view.getId()) {
case R.id.searchDate:
searchDate.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
// Clear spinner data
//arrayList.clear();
// Search the spinner item value list
//showDateRoute(myJson, searchDate.getSelectedItem().toString());
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
break;
case R.id.searchButton:
String testString = presenterEdit.getText().toString();
Toast.makeText(MainActivity.this, testString, Toast.LENGTH_SHORT).show();
break;
}
}
})
.setExpanded(true, 900) // This will enable the expand feature, (similar to android L share dialog)
.create();
dialog.show();
}
我使用以下函数在微调器中填充了项目。只需添加一个示例showRoute函数即可检查项目是否正确填充。
public void showRoute(Spinner spinner) {
List<String> spinnerArray = new ArrayList<String>();
spinnerArray.add("item1");
spinnerArray.add("item2");
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this, android.R.layout.simple_spinner_item, spinnerArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
}