空指针问题么?求教? 这种异常一般的问题都很简单,错误的位置也标识出来了,仔细根据log找下就可以解决的 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 比如从第六行这样写的地方就不对是么?OtherActivity 62行……这么明显看不到? 比如从第六行这样写的地方就不对是么?比如从第六行这样写的地方就不对是么?OtherActivity 62行……这么明显看不到?对应的是这个:不懂什么意思~~~~~ private void setListView() { listView.setVisibility(View.VISIBLE); List<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); String str = "select * from v_jy where enginen like '%" + "enginen" + "%'"; list = dbUtil.selectAllfromv_jy(str); adapter = new SimpleAdapter( OtherActivity.this, list, R.layout.adapter_item, new String[] {"sysid", "reportn", "enginen" ,"exreport","exsdate","uaddress","maddress","factoryn","exaddress","no" }, new int[] { R.id.txt_Cno,R.id.txt_Cna,R.id.txt_Cnb,R.id.txt_Cnc,R.id.txt_Cnd,R.id.txt_Cne,R.id.txt_Cnf,R.id.txt_Cng,R.id.txt_Cnh,R.id.txt_Cni}); listView.setAdapter(adapter);} 你debug看下,目测listView没有绑定ID public class OtherActivity extends MainActivity { private Button btn1; private TextView myTextView = null; private ListView listView; private SimpleAdapter adapter; private DBUtil dbUtil;protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.other); Intent intent = getIntent(); String value = intent.getStringExtra("testIntent"); myTextView = (TextView)findViewById(R.id.myTextView); myTextView.setText(value); btn1 = (Button) findViewById(R.id.btn_all); listView = (ListView) findViewById(R.id.listView); dbUtil = new DBUtil(); btn1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { hideButton(true); setListView(); } }); }这是OtherActivity.java 前面的代码,我还有救么 检测一下OthreActivity那个类的49、55、62行,有一个出现空异常了! 现在csdn的回复,我这边都看不到了,你是不是用了最新的adt,自动生成了frement并且有oncreateview android系统UI的改变 Content Provider安全性问题 bitmap无限制放大 android 急!!急!!warning:You are about to install an unsigned feature.Eclipse下载ADT问题 ListView右对齐的问题和setColorFilter问题 android程序异常,日志如下,这是什么原因呢,急急急 现在主流的移动开发平台有哪几个, 使用setOnClickListene报错的问题,我想哭了 请问各路大神,这是什么问题,小白不太明白 网络游戏 如何限定一台安卓平板电脑浏览器(APP)只能访问指定的网址?
比如从第六行这样写的地方就不对是么?
OtherActivity 62行……这么明显看不到?
比如从第六行这样写的地方就不对是么?
比如从第六行这样写的地方就不对是么?
OtherActivity 62行……这么明显看不到?
对应的是这个:不懂什么意思~~~~~
private void setListView() { listView.setVisibility(View.VISIBLE); List<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
String str = "select * from v_jy where enginen like '%" + "enginen" + "%'";
list = dbUtil.selectAllfromv_jy(str);
adapter = new SimpleAdapter(
OtherActivity.this,
list,
R.layout.adapter_item,
new String[] {"sysid", "reportn", "enginen" ,"exreport","exsdate","uaddress","maddress","factoryn","exaddress","no" },
new int[] { R.id.txt_Cno,R.id.txt_Cna,R.id.txt_Cnb,R.id.txt_Cnc,R.id.txt_Cnd,R.id.txt_Cne,R.id.txt_Cnf,R.id.txt_Cng,R.id.txt_Cnh,R.id.txt_Cni}); listView.setAdapter(adapter);}
public class OtherActivity extends MainActivity {
private Button btn1;
private TextView myTextView = null;
private ListView listView;
private SimpleAdapter adapter;
private DBUtil dbUtil;protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.other);
Intent intent = getIntent();
String value = intent.getStringExtra("testIntent");
myTextView = (TextView)findViewById(R.id.myTextView);
myTextView.setText(value);
btn1 = (Button) findViewById(R.id.btn_all);
listView = (ListView) findViewById(R.id.listView);
dbUtil = new DBUtil();
btn1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
hideButton(true);
setListView();
}
});
}这是OtherActivity.java 前面的代码,我还有救么