Java 为搜索建议实现自己的Android CursorAdapter-未知异常
我已经实现了自己的游标适配器来手动处理建议，这样我就可以摆脱androiddocs提出的过度杀戮方法。 基本上，我所做的是在actionbar搜索视图膨胀后将其设置为setOnQueryTextListener。每次用户输入新的搜索文本时，我都会查询一个Sqlite db，它返回一个游标。最后，我使用检索到的游标创建自己的游标适配器，并使用setSuggestionsAdapter方法将其设置为searchview。 这里的问题是，根据每次配置更改时更新游标的方式，我会得到许多未知的异常。稍后我将对其进行示例，首先是一些代码： ************************我自己的游标适配器类************************Java 为搜索建议实现自己的Android CursorAdapter-未知异常,java,android,sqlite,searchview,android-cursoradapter,Java,Android,Sqlite,Searchview,Android Cursoradapter,我已经实现了自己的游标适配器来手动处理建议，这样我就可以摆脱androiddocs提出的过度杀戮方法。 基本上，我所做的是在actionbar搜索视图膨胀后将其设置为setOnQueryTextListener。每次用户输入新的搜索文本时，我都会查询一个Sqlite db，它返回一个游标。最后，我使用检索到的游标创建自己的游标适配器，并使用setSuggestionsAdapter方法将其设置为searchview。 这里的问题是，根据每次配置更改时更新游标的方式，我会得到许多未知的异常。稍后我
// Associate searchView listeners
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
return true;
}
});
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
/* if (newText !="")
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));*/
if (searchView.getSuggestionsAdapter() == null) {
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
} else {
searchView.getSuggestionsAdapter().changeCursor(cursor);
}
return true;
}
03-10 15:58:46.762 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:46.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.612 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:58:48.622 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:58:48.632 3767-4304/com.nikkis.vallabus W/Filter﹕ An exception occured during performFiltering()!
java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: SELECT stop.stopID AS _id, stop.address, stop_line.line FROM stop_line, stop WHERE stop.stopID = stop_line.stop AND stop.address LIKE '%%';
at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:58)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.widget.CursorFilter.performFiltering(CursorFilter.java:53)
at android.widget.Filter$RequestHandler.handleMessage(Filter.java:234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:213)
at android.os.HandlerThread.run(HandlerThread.java:60)
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.652 3767-4304/com.nikkis.vallabus E/CursorWindow﹕ Failed to read row 0, column 0 from a CursorWindow which has 1 rows, 0 columns.
03-10 15:58:48.702 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.832 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
public BusStopCursorAdapter(Context context, Cursor cursor) {
super(context, cursor, false);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
//set address
((TextView)view.findViewById(R.id.address)).setText(cursor.getString(1));
//set line
((TextView)view.findViewById(R.id.line)).setText(cursor.getString(2));
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.suggestions_layout, parent, false);
//set address
((TextView)view.findViewById(R.id.address)).setText(cursor.getString(1));
//set line
((TextView)view.findViewById(R.id.line)).setText(cursor.getString(2));
return view;
}
}
// Associate searchView listeners
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
return true;
}
});
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
/* if (newText !="")
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));*/
if (searchView.getSuggestionsAdapter() == null) {
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
} else {
searchView.getSuggestionsAdapter().changeCursor(cursor);
}
return true;
}
03-10 15:58:46.762 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:46.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.612 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:58:48.622 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:58:48.632 3767-4304/com.nikkis.vallabus W/Filter﹕ An exception occured during performFiltering()!
java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: SELECT stop.stopID AS _id, stop.address, stop_line.line FROM stop_line, stop WHERE stop.stopID = stop_line.stop AND stop.address LIKE '%%';
at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:58)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.widget.CursorFilter.performFiltering(CursorFilter.java:53)
at android.widget.Filter$RequestHandler.handleMessage(Filter.java:234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:213)
at android.os.HandlerThread.run(HandlerThread.java:60)
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.652 3767-4304/com.nikkis.vallabus E/CursorWindow﹕ Failed to read row 0, column 0 from a CursorWindow which has 1 rows, 0 columns.
03-10 15:58:48.702 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.832 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:20:11.762 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING: ad
03-10 15:20:13.012 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING: ado
03-10 15:20:13.992 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:20:15.602 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:20:15.602 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:20:15.662 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:20:15.672 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:20:15.722 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:20:15.812 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:20:15.882 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:20:18.402 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:20:18.402 1927-1927/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:20:18.492 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:20:18.492 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:20:18.522 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:20:18.552 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:20:18.592 1927-1927/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
// Associate searchView listeners
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
return true;
}
});
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
/* if (newText !="")
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));*/
if (searchView.getSuggestionsAdapter() == null) {
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
} else {
searchView.getSuggestionsAdapter().changeCursor(cursor);
}
return true;
}
03-10 15:58:46.762 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:46.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.612 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:58:48.622 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:58:48.632 3767-4304/com.nikkis.vallabus W/Filter﹕ An exception occured during performFiltering()!
java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: SELECT stop.stopID AS _id, stop.address, stop_line.line FROM stop_line, stop WHERE stop.stopID = stop_line.stop AND stop.address LIKE '%%';
at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:58)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.widget.CursorFilter.performFiltering(CursorFilter.java:53)
at android.widget.Filter$RequestHandler.handleMessage(Filter.java:234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:213)
at android.os.HandlerThread.run(HandlerThread.java:60)
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.652 3767-4304/com.nikkis.vallabus E/CursorWindow﹕ Failed to read row 0, column 0 from a CursorWindow which has 1 rows, 0 columns.
03-10 15:58:48.702 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.832 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
// Associate searchView listeners
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
return true;
}
});
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("QUERY STRING: "+newText);
Cursor cursor = queryData(newText);
/* if (newText !="")
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));*/
if (searchView.getSuggestionsAdapter() == null) {
searchView.setSuggestionsAdapter(new BusStopCursorAdapter(getBaseContext(), cursor));
} else {
searchView.getSuggestionsAdapter().changeCursor(cursor);
}
return true;
}
03-10 15:58:46.762 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:46.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.612 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING:
03-10 15:58:48.622 3767-3767/com.nikkis.vallabus I/System.out﹕ QUERY STRING: adol
03-10 15:58:48.632 3767-4304/com.nikkis.vallabus W/Filter﹕ An exception occured during performFiltering()!
java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteQuery: SELECT stop.stopID AS _id, stop.address, stop_line.line FROM stop_line, stop WHERE stop.stopID = stop_line.stop AND stop.address LIKE '%%';
at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:58)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.widget.CursorFilter.performFiltering(CursorFilter.java:53)
at android.widget.Filter$RequestHandler.handleMessage(Filter.java:234)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:213)
at android.os.HandlerThread.run(HandlerThread.java:60)
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
03-10 15:58:48.652 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 15:58:48.652 3767-4304/com.nikkis.vallabus E/CursorWindow﹕ Failed to read row 0, column 0 from a CursorWindow which has 1 rows, 0 columns.
03-10 15:58:48.702 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.792 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 15:58:48.832 3767-3767/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
我非常感谢您的帮助，因为我在花了几个小时的搜索之后完全被卡住了。请提前感谢。您已经把这件事复杂化了：不需要setOnQueryTextListener，只需拨打：
myCursorAdapter.setFilterQueryProvider(this);
searchView.setSuggestionsAdapter(myCursorAdapter);
在
oncreateoptions菜单中FilterQueryProvider运行查询光标您已经把这个问题复杂化了：不需要setOnQueryTextListener，只需调用：
myCursorAdapter.setFilterQueryProvider(this);
searchView.setSuggestionsAdapter(myCursorAdapter);
在oncreateoptions菜单中
，您需要您的活动来实现FilterQueryProvider
，在它的运行查询
中，您返回带有建议的光标您已经把这个问题复杂化了：不需要setOnQueryTextListener，只需调用：
myCursorAdapter.setFilterQueryProvider(this);
searchView.setSuggestionsAdapter(myCursorAdapter);
在oncreateoptions菜单中
，您需要您的活动来实现FilterQueryProvider
，在它的运行查询
中，您返回带有建议的光标您已经把这个问题复杂化了：不需要setOnQueryTextListener，只需调用：
myCursorAdapter.setFilterQueryProvider(this);
searchView.setSuggestionsAdapter(myCursorAdapter);
在oncreateoptions菜单中
，您需要您的活动来实现FilterQueryProvider
，在它的运行查询
中，您返回带有建议的光标，刚刚尝试过。它就像一个符咒。该查询正在处理配置更改，不再崩溃。唯一的问题是我得到了每次配置更改时，logcat中都会出现以下异常：
03-10 19:39:06.542 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.622 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.672 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 19:39:08.252 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
刚刚尝试过。它就像一个符咒。查询正在处理配置更改，不再崩溃。唯一的问题是每次配置更改时，我都会在logcat中得到这些异常：
03-10 19:39:06.542 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.622 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.672 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 19:39:08.252 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
刚刚尝试过。它就像一个符咒。查询正在处理配置更改，不再崩溃。唯一的问题是每次配置更改时，我都会在logcat中得到这些异常：
03-10 19:39:06.542 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.622 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.672 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 19:39:08.252 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
刚刚尝试过。它就像一个符咒。查询正在处理配置更改，不再崩溃。唯一的问题是每次配置更改时，我都会在logcat中得到这些异常：
03-10 19:39:06.542 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.622 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getTextBeforeCursor on inactive InputConnection
03-10 19:39:06.672 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ getExtractedText on inactive InputConnection
03-10 19:39:08.252 30711-30711/com.nikkis.vallabus W/IInputConnectionWrapper﹕ showStatusIcon on inactive InputConnection
调用SetSuggestionAdapter一次，然后在该适配器中设置FilterQueryProvider，这样您就不需要任何setOnQueryTextListener：只需调用SetSuggestionAdapter（）一旦进入OnCreateOptions菜单，谢谢你的anser pskink，但我想我遗漏了一些关于它的工作原理。我的假设是：1.你通过setOnQueryTextListener接收到一个新的输入文本。2.你用该文本查询数据库。3.数据库返回一个你更改为适配器的光标。4.建议列表视图得到更新。它是这样工作的吗？因为我无法理解它为什么失败。那个FilterQueryProvider是做什么的？不，不需要setOnQueryTextListener，只需调用myAdapter.setFilterQueryProvider（this）和searchView.SetSuggestionAdapter（myAdapter）在OnCreateOptionsMenumYaAdapter中可以是SimpleCorsAdapter，不需要一次自定义onecall SetSuggestionAdapter，也不需要在该适配器中设置FilterQueryProvider，也不需要任何setOnQueryTextListener：只需调用SetSuggestionAdapter（）一旦进入OnCreateOptions菜单，谢谢你的anser pskink，但我想我遗漏了一些关于它的工作原理。我的假设是：1.你通过setOnQueryTextListener接收到一个新的输入文本。2.你用该文本查询数据库。3.数据库返回一个你更改为适配器的光标。4.建议列表视图得到更新。它是这样工作的吗？因为我无法理解它为什么失败。那个FilterQueryProvider是做什么的？不，不需要setOnQueryTextListener，只需调用myAdapter.setFilterQueryProvider（this）和searchView.SetSuggestionAdapter（myAdapter）在OnCreateOptions菜单中，Adapter可以是SimpleCorsAdapter，不需要一次自定义onecall SetSuggestionAdapter，也不需要在该适配器中设置FilterQueryProvider，也不需要任何setOnQueryTextListener：只需在OnCreate中调用SetSuggestionAdapter（）