Question

我似乎找不到任何关于如何在给定单词的情况下查询UserDictionary内容提供者的良好示例代码。我的查询如下：

Cursor cur = getContentResolver().query(
    UserDictionary.Words.CONTENT_URI,
    new String[] {Words._ID, Words.WORD},
    Words.WORD + "=?",
    new String[] {"test"},
    null);

我也尝试过不指定查询以及不指定投影，并且光标始终为空。我在我的清单中加入了android.permission.READ_USER_DICTIONARY。

Answer 1

试试这个

final String[] QUERY_PROJECTION = {
  UserDictionary.Words._ID,
  UserDictionary.Words.WORD
};
Cursor cursor = getContentResolver()
            .query(UserDictionary.Words.CONTENT_URI, QUERY_PROJECTION, "(locale IS NULL) or (locale=?)", 
            new String[] { Locale.getDefault().toString() }, null);

我没有测试过这个，只是一个建议

Answer 2

前提条件：确保在用户词典中有适当的单词 Settings - ＆gt; Language & Input - ＆gt; Personal dictionary。

示例sql查询，用于搜索用户词典中包含SO的单词及其等效的Android代码示例。请注意?替换为args的用法。

SQL查询：

SELECT UserDictionary.Words._ID, UserDictionary.Words.WORD FROM UserDictionary.Words.CONTENT_URI WHERE UserDictionary.Words.WORD LIKE "%SO%

等效代码：

String[] columns = {UserDictionary.Words._ID, UserDictionary.Words.WORD};
String condition = UserDictionary.Words.WORD  + " LIKE ? ";
// ? in condition will be replaced by `args` in order.
String[] args = {"%SO%"};

ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(UserDictionary.Words.CONTENT_URI, columns, condition, args, null);
//Cursor cursor = resolver.query(UserDictionary.Words.CONTENT_URI, projection, null, null, null); - get all words from dictionary
if ( cursor != null ) {
    int index = cursor.getColumnIndex(UserDictionary.Words.WORD);
    //iterate over all words found
    while (cursor.moveToNext()) {
        //gets the value from the column.
        String word = cursor.getString(index);
        Log.i(TAG, "Word found: " + word);
    }
}

_{AndroidManifest.xml中的权限：

<uses-permission android:name="android.permission.READ_USER_DICTIONARY"/>}

Answer 3

从API 23开始，用户词典只能通过IME访问和拼写检查。 https://developer.android.com/reference/android/provider/UserDictionary.html

M

中不再提供

android.permission.READ_USER_DICTIONARY权限

如何在Android上查询UserDictionary内容提供程序？

3 个答案: