我对String数组没什么问题。在一个课程中,我有简单的列表视图,有多种选择。最后,每个选项都放在String数组中并共享给下一个类。
SparseBooleanArray checked = listView.getCheckedItemPositions();
ArrayList<String> selectedItems = new ArrayList<String>();
for (int i = 0; i < checked.size(); i++) {
// Item position in adapter
int position = checked.keyAt(i);
// Add sport if it is checked i.e.) == TRUE!
if (checked.valueAt(i))
selectedItems.add(adapter.getItem(position));
}
String[] outputStrArr = new String[selectedItems.size()];
for (int i = 0; i < selectedItems.size(); i++) {
outputStrArr[i] = selectedItems.get(i);
}
Intent intent = new Intent(getApplicationContext(),
ReadComments.class);
// Create a bundle object
Bundle b = new Bundle();
b.putStringArray("selectedItems", outputStrArr);
// Add the bundle to the intent.
intent.putExtras(b);
// start the ResultActivity
startActivity(intent);
在ReadComments课程中,我做了一个简单的方法:
public String[] tablica(){
Bundle b = getIntent().getExtras();
String[] resultArr = b.getStringArray("selectedItems");
return resultArr;
}
带回我的数据。当我把它放到同一个类中的另一个方法时:
for(x=0;x<=resultArr.length;x++){
if(resultArr[x] == nazwa){
lat = mListaMar.get(TAG_SZER);
longi = mListaMar.get(TAG_DLUG);
// String laty = Float.toString(lat);
name = mListaMar.get(TAG_MARKET);
ustawMape();
}
}}
我有ArrayIndexOutOfBoundsException。 Pleasy帮助我这是一个简单的问题,但非常讨厌
12-22 13:23:50.055: E/AndroidRuntime(8735): FATAL EXCEPTION: main
12-22 13:23:50.055: E/AndroidRuntime(8735): java.lang.ArrayIndexOutOfBoundsException
12-22 13:23:50.055: E/AndroidRuntime(8735): at com.flex.sklepik.ReadComments.updateList(ReadComments.java:235)
12-22 13:23:50.055: E/AndroidRuntime(8735): at com.flex.sklepik.ReadComments$LoadComments.onPostExecute(ReadComments.java:318)
12-22 13:23:50.055: E/AndroidRuntime(8735): at com.flex.sklepik.ReadComments$LoadComments.onPostExecute(ReadComments.java:1)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.os.AsyncTask.finish(AsyncTask.java:417)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.os.AsyncTask.access$300(AsyncTask.java:127)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.os.Handler.dispatchMessage(Handler.java:99)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.os.Looper.loop(Looper.java:130)
12-22 13:23:50.055: E/AndroidRuntime(8735): at android.app.ActivityThread.main(ActivityThread.java:3701)
12-22 13:23:50.055: E/AndroidRuntime(8735): at java.lang.reflect.Method.invokeNative(Native Method)
12-22 13:23:50.055: E/AndroidRuntime(8735): at java.lang.reflect.Method.invoke(Method.java:507)
12-22 13:23:50.055: E/AndroidRuntime(8735): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
12-22 13:23:50.055: E/AndroidRuntime(8735): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:624)
12-22 13:23:50.055: E/AndroidRuntime(8735): at dalvik.system.NativeStart.main(Native Method)
P.S。 235线显示:
if(resultArr[x] == nazwa){
答案 0 :(得分:6)
替换
for(x=0;x<=resultArr.length;x++)
使用
for(x=0;x<resultArr.length;x++)
为什么呢?
长度为3的数组的索引为0,1,2。在您的情况下,会出现问题,因为如果长度为3,您将尝试调用resultArr[3]
。