Android 试图将数据发送到phpmyadmin时应用程序崩溃
当我尝试以下代码调用onclick方法时,我的应用程序崩溃 全部活动:Android 试图将数据发送到phpmyadmin时应用程序崩溃,android,onclicklistener,Android,Onclicklistener,当我尝试以下代码调用onclick方法时,我的应用程序崩溃 全部活动: public class UserCom extends ListActivity implements OnClickListener { private ProgressDialog m_ProgressDialog = null; private ArrayList<Order> m_orders = null; private OrderAdapter m_adapter; private Runnab
public class UserCom extends ListActivity implements OnClickListener {
private ProgressDialog m_ProgressDialog = null;
private ArrayList<Order> m_orders = null;
private OrderAdapter m_adapter;
private Runnable viewOrders;
private Thread t;
String valcom;
String valnm;
EditText editText1;
EditText editText2;
URL url;
InputStream is;
HttpURLConnection h;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.user_com);
View subBTN = findViewById(R.id.button1);
subBTN.setOnClickListener(this);
m_orders = new ArrayList<Order>();
this.m_adapter = new OrderAdapter(this, R.layout.listlook, m_orders);
setListAdapter(this.m_adapter);
viewOrders = new Runnable(){
@Override
public void run() {
getOrders();
}
};
Thread thread = new Thread(null, viewOrders, "MagentoBackground");
thread.start();
m_ProgressDialog = ProgressDialog.show(UserCom.this,
"Please wait...", "Retrieving data ...", true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.user_com, menu);
return true;
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
sendTextToDB();
break;
}
}
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
public static JSONArray readJsonFromUrl(String url) throws IOException, JSONException {
InputStream is = new URL(url).openStream();
try {
BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
String jsonText = readAll(rd);
JSONArray json = new JSONArray(jsonText);
return json;
} finally {
is.close();
}
}
private void getOrders(){
m_orders = new ArrayList<Order>();
JSONArray json;
JSONObject jo;
try{
json = readJsonFromUrl("http://10.0.2.2/HB/hikebuddy.php?function=usercomm");
jo = (JSONObject) json.get(0);
Order o1 = new Order();
o1.setOrderName(jo.get("comment").toString());
o1.setOrderStatus(jo.get("name").toString());
// Order o2 = new Order();
// o2.setOrderName("SF Advertisement");
// o2.setOrderStatus("Completed");
m_orders.add(o1);
// m_orders.add(o2);
Thread.sleep(1000);
Log.i("ARRAY", ""+ m_orders.size());
} catch (Exception e) {
Log.e("BACKGROUND_PROC", e.getMessage());
}
runOnUiThread(returnRes);
}
private Runnable returnRes = new Runnable() {
@Override
public void run() {
if(m_orders != null && m_orders.size() > 0){
m_adapter.notifyDataSetChanged();
for(int i=0;i<m_orders.size();i++)
m_adapter.add(m_orders.get(i));
}
m_ProgressDialog.dismiss();
m_adapter.notifyDataSetChanged();
}
};
private class OrderAdapter extends ArrayAdapter<Order> {
private ArrayList<Order> items;
public OrderAdapter(Context context, int textViewResourceId, ArrayList<Order> items) {
super(context, textViewResourceId, items);
this.items = items;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.listlook, null);
}
Order o = items.get(position);
if (o != null) {
TextView tt = (TextView) v.findViewById(R.id.txtl1);
TextView bt = (TextView) v.findViewById(R.id.txtl2);
if (tt != null) {
tt.setText(o.getOrderName()); }
if(bt != null){
bt.setText(o.getOrderStatus());
}
}
return v;
}
}
public void sendTextToDB() {
valcom = editText1.getText().toString();
valnm = editText2.getText().toString();
t = new Thread() {
public void run() {
try {
url = new URL("http://10.0.2.2/HB/hikebuddy.php?function=setcomm&comment="+valcom+"&name="+valnm);
h = (HttpURLConnection)url.openConnection();
if( h.getResponseCode() == HttpURLConnection.HTTP_OK){
is = h.getInputStream();
// do something with the data here
}else{
is = h.getErrorStream();
}
h.disconnect();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.d("Test", "CONNECTION FAILED 1");
}
}
};
t.start();
}
}
公共类UserCom扩展ListActivity实现OnClickListener{
private ProgressDialog m_ProgressDialog=null;
private ArrayList m_orders=null;
专用OrderAdapter m_adapter;
私人可运行视图命令;
私有线程t;
字符串valcom;
弦valnm;
编辑文本编辑文本1;
编辑文本编辑文本2;
网址;
输入流为;
httpurlh;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.user_com);
视图子BTN=findViewById(R.id.button1);
subBTN.setOnClickListener(此);
m_orders=new ArrayList();
this.m_adapter=新订单适配器(this,R.layout.listlook,m_订单);
setListAdapter(此.m_适配器);
viewOrders=new Runnable(){
@凌驾
公开募捐{
getOrders();
}
};
线程线程=新线程(null,viewOrders,“MagentoBackground”);
thread.start();
m_ProgressDialog=ProgressDialog.show(UserCom.this,
“请稍候…”,“正在检索数据…”,为true);
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(R.menu.user\u com,菜单);
返回true;
}
公共void onClick(视图v){
开关(v.getId()){
案例R.id.button1:
sendTextToDB();
打破
}
}
私有静态字符串readAll(读取器rd)引发IOException{
StringBuilder sb=新的StringBuilder();
int-cp;
而((cp=rd.read())!=-1){
sb.追加((char)cp);
}
使某人返回字符串();
}
公共静态JSONArray readJsonFromUrl(字符串url)引发IOException,JSONException{
InputStream is=新URL(URL).openStream();
试一试{
BufferedReader rd=新的BufferedReader(新的InputStreamReader(is,Charset.forName(“UTF-8”));
字符串jsonText=readAll(rd);
JSONArray json=新的JSONArray(jsonText);
返回json;
}最后{
is.close();
}
}
私人订单(){
m_orders=new ArrayList();
JSONArray-json;
JSONObject jo;
试一试{
json=readJsonFromUrl(“http://10.0.2.2/HB/hikebuddy.php?function=usercomm");
jo=(JSONObject)json.get(0);
订单o1=新订单();
o1.setOrderName(jo.get(“comment”).toString());
o1.setOrderStatus(jo.get(“name”).toString());
//订单o2=新订单();
//o2.setOrderName(“SF广告”);
//o2.设置订单状态(“完成”);
m_订单。添加(o1);
//m_订单。添加(o2);
睡眠(1000);
Log.i(“数组”,“m_orders.size());
}捕获(例外e){
Log.e(“BACKGROUND_PROC”,e.getMessage());
}
runOnUiThread(returnRes);
}
private Runnable returnRes=new Runnable(){
@凌驾
公开募捐{
if(m_orders!=null&&m_orders.size()>0){
m_adapter.notifyDataSetChanged();
对于(int i=0;i调用EditText.getText()
方法之前忘记初始化EditText,因此在setContentView
之后初始化为:
EditText editText1;
EditText editText2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.user_com);
editText1=(EditText)findViewById(R.id.your_edittextid);
editText2=(EditText)findViewById(R.id.your_edittextid);
.....
确保您已在AndroidManifest中添加了internet权限,并在应用程序因问题而崩溃以获取更多帮助时发布堆栈跟踪。添加了internet权限后,应用程序已调用数据,现在我必须发送数据。不确定堆栈跟踪是什么,但我发布了logcat错误。发布您的完整活动。@dkgeld:行号是多少UserCom类中的193行?第193行是:valcom=editText1.getText().toString();真不敢相信我忘记了!谢谢:)