我的活动中有5个按钮，其中一个是完成（）活动的关闭按钮。除非我先单击其中一个按钮然后单击它，否则单击它不会执行任何操作。我假设问题出在我的xml中。
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="3.05"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/siteName"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/dialogsitename"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_weight="8.05"
android:ems="10" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/siteAddress"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/dialogaddress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10" >
</EditText>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/userName"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/dialogusername"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_weight="1"
android:ems="10" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/password"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/dialogpassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="26dp"
android:layout_weight="58.17"
android:ems="10" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/port"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="@+id/dialogport"
android:layout_width="54dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="number" />
<CheckBox
android:id="@+id/dialogpassive"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="25dp"
android:text="Passive" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="@+id/testBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Test Connection" />
<Button
android:id="@+id/saveSite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Save"
android:visibility="visible" />
<Button
android:id="@+id/closeBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Close" />
<Button
android:id="@+id/connectBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="Connect" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="440dp"
android:layout_height="401dp"
android:orientation="vertical" >
<ListView
android:id="@+id/siteList"
android:layout_width="match_parent"
android:layout_height="320dp" >
</ListView>
<Button
android:id="@+id/clrBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Clear Sites" />
</LinearLayout>
代码：
public class SiteManager extends Activity {
DBAdapter myDb;
public FTPClient mFTPClient = null;
public EditText sitename;
public EditText address;
public EditText username;
public EditText password;
public EditText port;
public CheckBox passive;
public ListView site_list;
public TextView tview;
public Button clr;
public Button test;
public Button savesite;
public Button close;
public Button connect;
String _name;
String _address;
String _username;
String _password;
int _port;
int _passive = 0;
List<FTPSite> model = new ArrayList<FTPSite>();
ArrayAdapter<FTPSite> adapter;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.site_manager);
site_list = (ListView) findViewById(R.id.siteList);
adapter = new SiteAdapter(this, R.id.ftpsitename, R.layout.siterow,
model);
site_list.setAdapter(adapter);
site_list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, final View view,
int position, long id) {
final FTPSite item = (FTPSite) parent
.getItemAtPosition(position);
String tmpname = item.getName();
String tmpaddress = item.getAddress();
String tmpuser = item.getUsername();
String tmppass = item.getPassword();
int tmpport = item.getPort();
String tmp_port = Integer.toString(tmpport);
int tmppassive = item.isPassive();
sitename.setText(tmpname);
address.setText(tmpaddress);
username.setText(tmpuser);
password.setText(tmppass);
port.setText(tmp_port);
if (tmppassive == 1) {
passive.setChecked(true);
} else {
passive.setChecked(false);
}
}
});
sitename = (EditText) findViewById(R.id.dialogsitename);
address = (EditText) findViewById(R.id.dialogaddress);
username = (EditText) findViewById(R.id.dialogusername);
password = (EditText) findViewById(R.id.dialogpassword);
port = (EditText) findViewById(R.id.dialogport);
passive = (CheckBox) findViewById(R.id.dialogpassive);
close = (Button) findViewById(R.id.closeBtn);
close.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
connect = (Button) findViewById(R.id.connectBtn);
clr = (Button) findViewById(R.id.clrBtn);
test = (Button) findViewById(R.id.testBtn);
test.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
siteManager();
}
});
savesite = (Button) findViewById(R.id.saveSite);
savesite.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
siteManager();
}
});
openDb();
displayRecords();
}
private void openDb() {
myDb = new DBAdapter(this);
myDb.open();
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
closeDb();
}
private void closeDb() {
myDb.close();
}
public void siteManager() {
connect.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent returnResult = new Intent();
returnResult.putExtra("ftpname", _name);
returnResult.putExtra("ftpaddress", _address);
returnResult.putExtra("ftpusername", _username);
returnResult.putExtra("ftppassword", _password);
returnResult.putExtra("ftpport", _port);
setResult(RESULT_OK, returnResult);
finish();
}
});
test.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
_name = sitename.getText().toString();
_address = address.getText().toString();
_username = username.getText().toString();
_password = password.getText().toString();
_port = Integer.parseInt(port.getText().toString());
if (passive.isChecked()) {
_passive = 1;
} else {
_passive = 0;
}
boolean status = ftpConnect(_address, _username, _password,
_port);
ftpDisconnect();
if (status == true) {
Toast.makeText(SiteManager.this, "Connection Succesful",
Toast.LENGTH_LONG).show();
savesite.setVisibility(0);
} else {
Toast.makeText(SiteManager.this,
"Connection Failed:" + status, Toast.LENGTH_LONG)
.show();
}
}
});
savesite.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
_name = sitename.getText().toString();
_address = address.getText().toString();
_username = username.getText().toString();
_password = password.getText().toString();
_port = Integer.parseInt(port.getText().toString());
if (passive.isChecked()) {
_passive = 1;
} else {
_passive = 0;
}
long newId = myDb.insertRow(_name, _address, _username,
_password, 21, _passive);
FTPSite tmpSite = new FTPSite();
tmpSite.setName(_name);
tmpSite.setAddress(_address);
tmpSite.setUsername(_username);
tmpSite.setPassword(_password);
tmpSite.setPort(_port);
model.add(tmpSite);
adapter.notifyDataSetChanged();
Toast.makeText(SiteManager.this, model.get(0).getName(),
Toast.LENGTH_SHORT).show();
// displayRecords();
}
});
clr.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
clearAll();
}
});
}
public void displayRecords() {
Cursor cursor = myDb.getAllRows();
displayRecordSet(cursor);
}
protected void displayRecordSet(Cursor c) {
// String msg = "";
if (c.moveToFirst()) {
do {
// int id = c.getInt(0);
_name = c.getString(1);
_address = c.getString(2);
_username = c.getString(3);
_password = c.getString(4);
_port = c.getInt(5);
FTPSite sitesFromDB = new FTPSite();
sitesFromDB.setName(_name);
sitesFromDB.setAddress(_address);
sitesFromDB.setUsername(_username);
sitesFromDB.setAddress(_password);
sitesFromDB.setPort(_port);
sitesFromDB.setPassive(_passive);
model.add(sitesFromDB);
adapter.notifyDataSetChanged();
} while (c.moveToNext());
}
c.close();
}
public void clearAll() {
myDb.deleteAll();
adapter.notifyDataSetChanged();
}
public boolean ftpConnect(String host, String username, String password,
int port) {
try {
mFTPClient = new FTPClient();
// connecting to the host
mFTPClient.connect(host, port);
// now check the reply code, if positive mean connection success
if (FTPReply.isPositiveCompletion(mFTPClient.getReplyCode())) {
// login using username & password
boolean status = mFTPClient.login(username, password);
mFTPClient.enterLocalPassiveMode();
return status;
}
} catch (Exception e) {
// Log.d(TAG, "Error: could not connect to host " + host );
}
return false;
}
public boolean ftpDisconnect() {
try {
mFTPClient.logout();
mFTPClient.disconnect();
return true;
} catch (Exception e) {
// Log.d(TAG,
// "Error occurred while disconnecting from ftp server.");
}
return false;
}
class SiteAdapter extends ArrayAdapter<FTPSite> {
private final List<FTPSite> objects;
private final Context context;
public SiteAdapter(Context context, int resource,
int textViewResourceId, List<FTPSite> objects) {
super(context, R.id.ftpsitename, R.layout.siterow, objects);
this.context = context;
this.objects = objects;
}
/** @return The number of items in the */
public int getCount() {
return objects.size();
}
public boolean areAllItemsSelectable() {
return false;
}
/** Use the array index as a unique id. */
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.siterow, parent, false);
TextView textView = (TextView) rowView
.findViewById(R.id.ftpsitename);
textView.setText(objects.get(position).getName());
return (rowView);
}
}
}