我正在创建一个显示从 plist (XML) 文件解析的数据的视图。我的解析例程将数据作为对象存储在哈希图中,稍后我会使用键检索该哈希图中。我的 textview 确实显示了数据,但它不会将 \n 处理为换行符。相反,\n 与文本一起显示。这是我用来从哈希图中检索数据的代码:
String contactData = dict.get("Data").toString();
我尝试了变化但没有成功:
Object obj = dict.get("Data");
String contactData = obj.toString();
and
contactData = (String)dict.get("Data");
我的文本很长,嵌入了 \n 以强制换行。我将我的文本设置如下:
TextView data = (TextView) getActivity().findViewById(R.id.data);
data.setText(contactData);
这是我的布局:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/light_grey"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/midnight_blue"
android:gravity="center"
android:text="Contacts"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@color/white"
android:textStyle="bold" />
<TextView
android:id="@+id/country"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:gravity="center"
android:textColor="@color/midnight_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@color/white"
android:gravity="center"
android:textColor="@color/midnight_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/data"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:gravity="center"
android:singleLine="false"
android:textColor="@color/black"
android:textSize="12dp"
android:text="Line one\nLine two\nLine3"/>
\n 如果我将文本硬编码到我的变量 (contactData) 或者我在布局 XML 文件中使用默认文本,则可以正常工作。当我将对象数据转换为字符串时它不起作用??
请不要建议转换为\r\n。\n 是行分隔符。我在上一个问题中已经走下这条线,但这不是解决方案。以下代码返回\n:
System.getProperty("line.separator");
我的问题与我如何从哈希图中检索文本并将其转换为字符串有关。任何想法或建议将不胜感激!!!
*更新这是我对 plist 文件的解析例程:
public void parse(InputStream inputStream) throws XmlPullParserException, IOException {
final XmlPullParserFactory xppf = XmlPullParserFactory.newInstance();
final XmlPullParser parser = xppf.newPullParser();
parser.setInput(inputStream, null);
final Stack<List<Map<String, Object>>> arrayStack = new Stack<List<Map<String, Object>>>();
final Stack<Map<String, Object>> dictStack = new Stack<Map<String, Object>>();
final Stack<String> keyStack = new Stack<String>();
int eventType = parser.getEventType();
boolean done = false;
while (!done) {
final String name = parser.getName();
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
if ("array".equalsIgnoreCase(name)) {
final List<Map<String, Object>> array = new ArrayList<Map<String,Object>>();
arrayStack.push(array);
} else if ("dict".equalsIgnoreCase(name)) {
final Map<String, Object> dict = new HashMap<String, Object>();
dictStack.push(dict);
} else if ("key".equalsIgnoreCase(name)){
keyStack.push(parser.nextText()); // assign current key
} else if ("string".equalsIgnoreCase(name)) {
final Map<String, Object> dict = dictStack.peek();
final String string = parser.nextText();
final String key = keyStack.pop();
dict.put(key, string);
} else if ("integer".equalsIgnoreCase(name)) {
final Map<String, Object> dict = dictStack.peek();
final String integerStr = parser.nextText();
final Integer integer = new Integer(integerStr);
final String key = keyStack.pop();
dict.put(key, integer);
} else if ("false".equalsIgnoreCase(name)) {
final Map<String, Object> dict = dictStack.peek();
final Boolean booleanValue = new Boolean(false);
final String key = keyStack.pop();
dict.put(key, booleanValue);
} else if ("true".equalsIgnoreCase(name)) {
final Map<String, Object> dict = dictStack.peek();
final Boolean booleanValue = new Boolean(true);
final String key = keyStack.pop();
dict.put(key, booleanValue);
}
break;
case XmlPullParser.END_TAG:
if ("array".equalsIgnoreCase(name)) {
final List<Map<String, Object>> array = arrayStack.pop();
if (arrayStack.isEmpty()) {
// return array;
mPlistHashMap.put("array",array);
break;
}
// If not end of array, means it's an array within a dict
final String key = keyStack.pop();
dictStack.peek().put(key, array);
} else if ("dict".equalsIgnoreCase(name)) {
final Map<String, Object> dict = dictStack.pop();
if (!arrayStack.empty())
arrayStack.peek().add(dict);
else
mPlistHashMap = dict;
}
break;
case XmlPullParser.END_DOCUMENT:
done = true;
break;
}
eventType = parser.next();
}
}
我的 plist 包含一个包含三个字符串的字典项数组。这是我的 plist XML 文件的片段:
<array>
<dict>
<key>Country</key>
<string>Mexico</string>
<key>Name</key>
<string>Mexico City</string>
<key>Data</key>
<string>Line one\nLine two\nLine three</string>
</dict>