Question

我正在开发一个语言词典应用程序。我将喜爱的单词保存到Preference中。 XML文件中的收藏夹内容如下所示：

<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
  <map>
    <string name="history">
      dict_name::160170::hi,dict_name::157140::he-man,dict_name::184774::jet,dict_name::34527::black
    </string>
    <string name="waitingTime">
      0
    </string>
    <boolean name="saveFavourite" value="true" />
    <string name="defaultDictionary">
      dict_name
    </string>
    <string name="favourite">
      dict_name::149271::go,dict_name::25481::back,dict_name::184774::jet
    </string>
    <boolean name="saveHistory" value="true" />
  </map>

我使用以下代码将收藏内容加载到webview中：

public class User extends Activity {
    private static final String FAVOURITE_TAG = "[MyDict - FavouriteView] ";
    private static final String CONTENT_TAG = null;

    private ListView mLSTFavourite = null;
    private ArrayList<String> lstDict = null;
    private ArrayList<Integer> lstId = null;
    private ArrayList<String> mWordFavourite = null;
    private ArrayAdapter<String> aptList = null;
    private SharedPreferences prefs;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.favourite);
        prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());

        if (prefs.getBoolean("saveFavourite", true)) {
            String strFavourite = prefs.getString("favourite", "");
            Log.i(FAVOURITE_TAG, "Favourite loaded");
            if (strFavourite != null && !strFavourite.equals("")) {
                mWordFavourite = new ArrayList<String>(Arrays.asList(strFavourite.split(",")));
            } else {
                mWordFavourite = new ArrayList<String>();
            }
        } else {
            mWordFavourite = new ArrayList<String>();
        }

        Log.d(FAVOURITE_TAG, "mWordFavourite = " + mWordFavourite.size());
        mLSTFavourite = (ListView) findViewById(R.id.lstFavourite);

        ImageButton btnClear = (ImageButton) findViewById(R.id.btnClear);
        ImageButton btnBackToContent = (ImageButton) findViewById(R.id.btnBackToContent);

        if (lstDict == null) {
            lstDict = new ArrayList<String>();
            lstId = new ArrayList<Integer>();
            aptList = new ArrayAdapter<String>(getApplicationContext(), R.layout.customlist);
        }
        lstDict.clear();
        lstId.clear();
        aptList.clear();

        if (mWordFavourite != null && mWordFavourite.size() > 0) {
            try {
                for (int i = 0; i < mWordFavourite.size(); i++) {
                    Log.i(FAVOURITE_TAG, "item = " + mWordFavourite.get(i));
                    String arrPart[] = mWordFavourite.get(i).split("::");
                    if (arrPart.length == 3) {
                        Log.i(CONTENT_TAG, "loaded content " + arrPart.length + ", wordId = " + arrPart[1]);
                        // Log.i(CONTENT_TAG, "loaded 0");
                        lstDict.add(i, arrPart[0]);
                        // Log.i(CONTENT_TAG, "loaded 1");
                        lstId.add(i, Integer.parseInt(arrPart[1]));
                        // Log.i(CONTENT_TAG, "loaded 2");
                        aptList.add(arrPart[2]);
                    } else {
                        Log.i(FAVOURITE_TAG, "Wrong entry: " + mWordFavourite.get(i));
                    }
                }
            } catch (Exception ex) {
                Log.i(FAVOURITE_TAG, "Wrong entry found!");
            }
        }
        // Log.i(CONTENT_TAG,"Adapter size = " + aptList.getCount());
        // assign result return
        mLSTFavourite.setAdapter(aptList);
        mLSTFavourite.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    public void onItemClick(AdapterView<?> arg0, View v, int arg2, long arg3) {
                        // mEDWord.setText(mAdapter.getItem(arg2));
                        Intent i = new Intent();
                        i.putExtra("dict", lstDict.get(arg2));
                        i.putExtra("wordId", lstId.get(arg2));
                        setResult(RESULT_OK, i);
                        finish();
                    }
                });
        btnClear.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                mWordFavourite.clear();
                aptList.clear();
                mLSTFavourite.setAdapter(aptList);
                SharedPreferences.Editor editor = prefs.edit();
                editor.putString("favourite", "");
                editor.commit();
                setResult(RESULT_OK);
                finish();
            }
        });

        btnBackToContent.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                setResult(RESULT_CANCELED);
                finish();
            }
        });
    }
}

收藏的内容已成功加载。最喜欢的单词列在webview中。但问题是它只显示添加到收藏夹中的最新单词的定义，无论选择哪个单词。例如：

word1
word2
word3

尽管选择了word1和/或word2作为含义，但始终显示最后一个单词的定义，即word3。我的目的是在选择word1时显示word1的定义，在选择word2时显示word2的定义，依此类推。我将我的字典数据保存在SQLite数据库中。

有人可以帮助解决这个问题。

Answer 1

我认为问题来自这一行

            mWordFavourite = new ArrayList<String>(Arrays.asList(strFavourite.split(",")));

每次都创建一个新的ArrayList <string>对象，但是你应该追加它？＆安培;得到最后一个，否则你应该把它放在一个变量

如果您正在检查其尺寸（）> 0

但每次创建一个不附加的新对象

也许我错了！

Answer 2

http://developer.android.com/reference/android/webkit/WebView.html

请参阅以上链接以获取更多信息

在webview上未正确显示收藏的内容

2 个答案: