首页 > 代码库 > 点击ListView闪退
点击ListView闪退
============问题描述============
一点击ListVIew就闪退，调试了两天了，好痛苦，望大家解救。
这是部分日志
02-06 10:58:39.207: E/InputEventReceiver(764): Exception dispatching input event.
02-06 10:58:39.207: E/MessageQueue-JNI(764): Exception in MessageQueue callback:handleReceiveCallback
02-06 10:58:39.377: E/MessageQueue-JNI(764): java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. [in ListView(16908298, class android.widget.ListView) with Adapter(class android.widget.SimpleAdapter)]
02-06 10:58:39.377: E/MessageQueue-JNI(764): at android.widget.ListView.layoutChildren(ListView.java:1538)
部分代码：
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_clear);
bar = (ProgressBar) findViewById(R.id.progressBar0);
list = new ArrayList>();
SimpleAdapter adapter = new SimpleAdapter(this, list,
R.layout.list_view, new String[] { "name", "size", "path"},
new int[] { R.id.name, R.id.size, R.id.path });
setListAdapter(adapter);
System.out.println("hh");
handler = new MyHandler();
thread = new MyThread();
thread.start();
}
private void SendMessage(String name, String path, String size) {
Message message = handler.obtainMessage();
HashMap hashMap = new HashMap();
hashMap.put("name", name);
hashMap.put("path", path);
hashMap.put("size", size);
message.obj = hashMap;
handler.sendMessage(message);
}
class MyHandler extends Handler {
@Override
public void handleMessage(Message msg) {
HashMap<String, String> hashMap = (HashMap<String, String>) msg.obj;
list.add(hashMap);
}
没有在子线程改UI，只是用Handler往ArrayList添加东西，Adapter是在主线程生成和设置的。
添加下面这些代码，点击ListView时打印不出“Click”，直接退出了。
protected void onListItemClick(ListView l, View v, int position, long id) {
System.out.println("Click");
}
============解决方案1============
报错的意思是说你的加载的SimpleAdapter有问题，不然你自己写一个adatper不要去继承已经提供的SimpleAdapter，，，
============解决方案2============
添加数据后adapter.notifyDataSetChanged();
============解决方案3============
The content of the adapter has changed but ListView did not receive a notification
你的adapter没有刷新
class MyHandler extends Handler {
@Override
public void handleMessage(Message msg) {
HashMap<String, String> hashMap = (HashMap<String, String>) msg.obj;
list.add(hashMap);
这里加上adapter.notifyDataSetChanged();
}
============解决方案4============
还有你的代码的质量不太好，
thread = new MyThread();
thread.start();这个有什么用。
public void handleMessage(Message msg) {
这里面最好用switch（msg.what）判断一下
}
调用handler.sendE...
============解决方案5============
QQ1519203524
点击ListView闪退
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。