日期:2014-05-16  浏览次数:20371 次

解决:sqlite数据库含有\n的值或者sax解析xml有\n的值付给TextView,显示却不会换行

遇到个问题,网上也有人问

从sqlite数据库取含有\n的值付给TextView,显示结果却不会换行,而是将\n也原原本本的显示出来了。太奇怪了!
那位老大解决过这种问题吗?给个思路...谢谢!

?

?直接字符串中的/n或者strings.xml中的\n,textView可以自动换行,而数据库中或者xml解析后得到的字符串中的\n则原原本本的显示出来了。

自己想了个山寨办法:

??? ??? ??? List<Question> questionList = parse();
??? ??? ??? //textView.setText(questionList.get(0).getContent());
??? ??? ??? String a = questionList.get(1).getContent();
??? ??? ??? String b = "";
??? ??? ??? String aa[] = a.split("\n");
??? ??? ??? ?for(int i = 0;i<aa.length;i++){
??? ??? ??? ??? ?if(i==0){
??? ??? ??? ??? ??? ?b = aa[i]+"\n";
??? ??? ??? ??? ?}
??? ??? ??? ??? ?else if(i!=aa.length-1){
??? ??? ??? ??? ??? ?b = b + aa[i]+"\n";
??? ??? ??? ??? ?}
??? ??? ??? ??? ?else{
??? ??? ??? ??? ??? ?b = b + aa[i];
??? ??? ??? ??? ?}
??? ??? ??? ?}
??? ??? ??? textView.setText(b);

有更好办法的说声 thanks...

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补充

从raw/dates.txt文件取出字符串;

{"items":[{"content":"11111请选择:\nA、1成都\nB、1北京\nC、1上海\nD、1深圳","answer":"3","selectable":"1","chapterName":"1.1"},{"content":"22222请选择:\nA、2成都\nB、2北京\nC、2上海\nD、2深圳","answer":"1","selectable":"1","chapterName":"1.2"}]}

?private String getDateFromTxt(){
??InputStream localInputStream = getResources().openRawResource(R.raw.dates);
??BufferedReader reader = null;
??StringBuffer sb = null;
??try {
??reader = new BufferedReader(new InputStreamReader(localInputStream));
??sb = new StringBuffer();
??String temp = null;
??while( (temp = reader.readLine())!=null) {
???sb.append(temp);
??}
??} catch (FileNotFoundException e) {
??e.printStackTrace();
??} catch (IOException e) {
??e.printStackTrace();
??} finally {
??try {
??reader.close();
??} catch (IOException e) {
??e.printStackTrace();
??}
??}
??return sb.toString();
?}

?

//json解析代码

???JSONArray jArr;
???JSONObject j;
???String content = "";
???try {
???? j= new JSONObject(getDateFromTxt());
????jArr = (JSONArray) j.get("items");
????for(int i=0;i<jArr.length();i++){
?????JSONObject jj = (JSONObject)jArr.get(i);
?????content = jj.getString("content");
????}
????textView.setText(content);
???} catch (JSONException e) {
????// TODO Auto-generated catch block
????e.printStackTrace();
???}

?

从文件中读出json数据.\n可以正常实现换行功能。