Java 必需：找到Android.widget.CursorAdapter:Android.support.v4.widget.CursorAdapter

myAdapter的声明：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    myAdapter = new SimpleCursorAdapter(MainActivity.this, android.R.layout.simple_spinner_dropdown_item, null, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
   }

用法：

@Override
public boolean onCreateOptionsMenu(Menu menu) {

    // adds item to action bar
    getMenuInflater().inflate(R.menu.search_main, menu);

    // Get Search item from action bar and Get Search service
    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchManager searchManager = (SearchManager) MainActivity.this.getSystemService(Context.SEARCH_SERVICE);
    if (searchItem != null) {
        searchView = (SearchView) searchItem.getActionView();
    }
    if (searchView != null) {
        searchView.setSearchableInfo(searchManager.getSearchableInfo(MainActivity.this.getComponentName()));
        searchView.setIconified(false);
        searchView.setSuggestionsAdapter(myAdapter);
        // Getting selected (clicked) item suggestion
        searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
            @Override
            public boolean onSuggestionClick(int position) {

                // Add clicked text to search box
                CursorAdapter ca = searchView.getSuggestionsAdapter();
                Cursor cursor = ca.getCursor();
                cursor.moveToPosition(position);
                searchView.setQuery(cursor.getString(cursor.getColumnIndex("fishName")),false);
                return true;
            }

获取错误信息的行：

searchView.setSuggestionsAdapter(myAdapter);

以及：

错误：

错误：（218,46）错误：不兼容的类型：SimpleCorsorAdapter无法转换为CursorAdapter

错误：（225,72）错误：不兼容的类型：android.support.v4.widget.CursorAdapter无法转换为android.widget.CursorAdapter

我试着跟着

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我不太明白为什么我会犯这个错误。有人能帮我解释一下吗？

检查您的导入，CursorAdapter在常规库和支持库中都存在，所以在所有类中都要保持一致

import android.widget.CursorAdapter;
import android.support.v4.widget.CursorAdapter;

---

检查您的导入，CursorAdapter在常规库和支持库中都存在，因此在所有类中都要保持一致

import android.widget.CursorAdapter;
import android.support.v4.widget.CursorAdapter;

---

它修复了这一行：

CursorAdapter ca=searchView.getSuggestionAdapter（）这仍然返回一个错误：
searchView.setSuggestionsAdapter（myAdapter）如屏幕截图上所示：将SimpleCursorAdapter导入更改为：导入android.support.v4.widget.SimpleCursorAdapter；它修复了这一行：
CursorAdapter ca=searchView.getSuggestionAdapter（）这仍然返回一个错误：
searchView.setSuggestionsAdapter（myAdapter）如屏幕截图上所示：将SimpleCursorAdapter导入更改为：导入android.support.v4.widget.SimpleCursorAdapter；