Question

我正尝试以下列方式在我的可搜索活动中设置自定义搜索建议适配器（as explained in the documentation）

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.search_result_menu, menu);

    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    SearchView searchView = (SearchView) menu.findItem(R.id.search_result_search_widget).getActionView();
    searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

    SuggestionCursorAdapter suggestionCursorAdapter = new SuggestionCursorAdapter(this, null);
    searchView.setSuggestionsAdapter(suggestionCursorAdapter);

    return true;
}

我的SuggestionCursorAdapter.class看起来像这样：

public class SuggestionCursorAdapter extends CursorAdapter {

public SuggestionCursorAdapter(Context context, Cursor c) {
    super(context, c, 0);
   }

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
    return LayoutInflater.from(context).inflate(R.layout.list_item, parent, false);
   }

@Override
public void bindView(View view, Context context, Cursor cursor) {
    TextView text1 = (TextView) view.findViewById(R.id.list_item_text1);
    TextView text2 = (TextView) view.findViewById(R.id.list_item_text2);

    String text1String = cursor.getString(cursor.getColumnIndexOrThrow(SearchManager.SUGGEST_COLUMN_TEXT_1));
    String text2String = cursor.getString(cursor.getColumnIndexOrThrow(SearchManager.SUGGEST_COLUMN_TEXT_2));

    text1.setText(text1String);
    text2.setText(text2String);
   }
}

这会产生以下编译时不兼容的类型ERROR ：

错误：不兼容的类型：SuggestionCursorAdapter无法转换为CursorAdapter

我猜这个错误来自我使用android.support.v7.widget.SearchView .setSuggestionAdapter()不支持的android.widget.SearchView。所以我必须改为使用我不想要的.setSuggestionAdapter()。

有人知道如何克服这个问题吗？是否有Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long Private Declare Function RegSetValue Lib "advapi32.dll" Alias "RegSetValueA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal dwType As Long, ByVal lpData As String, ByVal cbData As Long) As Long Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long Private Declare Function RegQueryValue Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, ByVal lpData As String, lpcbData As Long) As Long Private Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) As Long Private Const ERROR_SUCCESS = 0& Private Const ERROR_BADDB = 1& Private Const ERROR_BADKEY = 2& Private Const ERROR_CANTOPEN = 3& Private Const ERROR_CANTREAD = 4& Private Const ERROR_CANTWRITE = 5& Private Const ERROR_OUTOFMEMORY = 6& Private Const ERROR_INVALID_PARAMETER = 7& Private Const ERROR_ACCESS_DENIED = 8& Private Const KEY_QUERY_VALUE = &H1& Private Const KEY_CREATE_SUB_KEY = &H4& Private Const KEY_ENUMERATE_SUB_KEYS = &H8& Private Const KEY_NOTIFY = &H10& Private Const KEY_SET_VALUE = &H2& Private Const MAX_PATH = 260& Private Const REG_DWORD As Long = 4 Private Const REG_SZ = 1 Private Const READ_CONTROL = &H20000 Private Const STANDARD_RIGHTS_READ = READ_CONTROL Private Const STANDARD_RIGHTS_WRITE = READ_CONTROL Private Const KEY_READ = STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY Private Const KEY_WRITE = STANDARD_RIGHTS_WRITE Or KEY_SET_VALUE Or KEY_CREATE_SUB_KEY Public Const HKEY_CLASSES_ROOT = &H80000000 Public Const HKEY_CURRENT_USER = &H80000001 Public Const HKEY_LOCAL_MACHINE = &H80000002 Public Const HKEY_USERS = &H80000003 Public Sub MakeFileAssociation(Extension As String, PathToApplication As String, ApplicationName As String, Description As String, Optional FullIconPath As String) Dim ret& If Left(PathToApplication, 1) <> "\" Then PathToApplication = PathToApplication & "\" 'Create a Root entry called .XXX associated with application name sKeyName = "." & Extension sKeyValue = ApplicationName ret& = WriteKey(HKEY_CLASSES_ROOT, sKeyName, "", sKeyValue) 'Debug.Print sKeyName, sKeyValue 'Set application key and file description sKeyName = ApplicationName sKeyValue = Description ret& = WriteKey(HKEY_CLASSES_ROOT, sKeyName, "", sKeyValue) 'Debug.Print sKeyName, sKeyValue 'This sets the default icon for XXX_auto_file If FullIconPath <> "" Then sKeyName = ApplicationName & "\DefaultIcon" sKeyValue = FullIconPath & ",0" ret& = WriteKey(HKEY_CLASSES_ROOT, sKeyName, "", sKeyValue) End If 'Debug.Print sKeyName, sKeyValue 'This sets the command line for XXX_auto_file sKeyName = ApplicationName & "\shell\open\command" sKeyValue = Chr(34) & PathToApplication & ApplicationName & ".exe" & Chr(34) & " %1" ret& = WriteKey(HKEY_CLASSES_ROOT, sKeyName, "", sKeyValue) End Sub Public Sub DeleteFileAssociation(Extension As String) Dim Application As String Dim ret& 'check if filetype is registred Application = ReadKey(HKEY_CLASSES_ROOT, "." & Extension, "", "") If Application <> "" Then 'delete file extension ret& = DeleteKey(HKEY_CLASSES_ROOT, "." & Extension) 'delete command lines ret& = DeleteKey(HKEY_CLASSES_ROOT, Application) End If End Sub Public Function CheckFileAssociation(ByVal Extension As String) As String Extension = "." & Extension 'read in the program name associated with this filetype CheckFileAssociation = ReadKey(HKEY_CLASSES_ROOT, Extension, "", "") End Function Public Function ReadKey(ByVal KeyName As String, ByVal SubKeyName As String, ByVal ValueName As String, ByVal DefaultValue As String) As String Dim sBuffer As String Dim lBufferSize As Long Dim ret& sBuffer = Space(255) lBufferSize = Len(sBuffer) ret& = RegOpenKey(KeyName, SubKeyName, 0, KEY_READ, lphKey&) If ret& = ERROR_SUCCESS Then ret& = RegQueryValue(lphKey&, ValueName, 0, REG_SZ, sBuffer, lBufferSize) ret& = RegCloseKey(lphKey&) Else ret& = RegCloseKey(lphKey&) End If sBuffer = Trim(sBuffer) If sBuffer <> "" Then sBuffer = Left(sBuffer, Len(sBuffer) - 1) Else sBuffer = DefaultValue End If ReadKey = sBuffer End Function Public Function WriteKey(ByVal KeyName As String, ByVal SubKeyName As String, ByVal ValueName As String, ByVal KeyValue As String) As Long Dim ret& ret& = RegCreateKey&(KeyName, SubKeyName, lphKey&) If ret& = ERROR_SUCCESS Then ret& = RegSetValue&(lphKey&, ValueName, REG_SZ, KeyValue, 0&) Else ret& = RegCloseKey(lphKey&) End If WriteKey = ret& End Function Public Function DeleteKey(ByVal KeyName As String, ByVal SubKeyName As String) As Long Dim ret& ret& = RegOpenKey(KeyName, SubKeyName, 0, KEY_WRITE, lphKey&) If ret& = ERROR_SUCCESS Then ret& = RegDeleteKey(lphKey&, "") 'delete the key ret& = RegCloseKey(lphKey&) End If DeleteKey = ret& End Function的替代方案？

感谢您的任何想法＆amp;提示！

Answer 1

支持SearchView类使用支持CursorAdapter类，而不是框架CursorAdapter。只需确保您在SuggestionCursorAdapter课程中输入了正确的内容。

import android.support.v4.widget.CursorAdapter;

setSuggestionAdapter（）不能与android.support.v7.widget.SearchView一起使用

1 个答案: