一个字符串的列表,准备用listview或spinner来变现,但是设置adapter总是有问题。如下的代码简单测试是OK的, ListView listView = (ListView) findViewById(R.id.listview); String [] list={"ArrayAdapter","ArrayAdapter","ArrayAdapter","ArrayAdapter"};
ArrayAdapter<String> adapter=new ArrayAdapter<String>
(this, android.R.layout.simple_list_item_1, list);
listView.setAdapter(adapter);
但是放在一个Dialog下就总是出现空指针异常,
Dialog select_dialog = new Dialog(this);
select_dialog.setContentView(R.layout.select_dialog);
ListView listView = (ListView) findViewById(R.id.listview); String [] list={"ArrayAdapter","ArrayAdapter","ArrayAdapter","ArrayAdapter"};
ArrayAdapter<String> adapter=new ArrayAdapter<String>
(this, android.R.layout.simple_list_item_1, list);
listView.setAdapter(adapter);
高手帮忙看看,谢了
ArrayAdapter<String> adapter=new ArrayAdapter<String>
(this, android.R.layout.simple_list_item_1, list);
listView.setAdapter(adapter);
但是放在一个Dialog下就总是出现空指针异常,
Dialog select_dialog = new Dialog(this);
select_dialog.setContentView(R.layout.select_dialog);
ListView listView = (ListView) findViewById(R.id.listview); String [] list={"ArrayAdapter","ArrayAdapter","ArrayAdapter","ArrayAdapter"};
ArrayAdapter<String> adapter=new ArrayAdapter<String>
(this, android.R.layout.simple_list_item_1, list);
listView.setAdapter(adapter);
高手帮忙看看,谢了
为什么在Dialog里取得TextView、或ImageView、或Button对象,都是OK的,但就取不到listview,或者是spinner对象呐
有知道的不
顺便再问下,又该如何解决那