java ActivityNotFoundException活动已在清单文件中声明
这是显示错误的地方(LoginActivity.java
文件)
Intent intent = new Intent(LoginActivity.this, Login.class);
startActivity(intent); //showing error here
finish();
我试图调用的登录类位于slideActivity下,扩展了安卓.support.v4.app.Fragment
,而LoginActivity
是独立包下的独立活动,扩展了Activity
我已经在安卓清单文件中添加了slideActivity
和LoginActivity
。但是错误是因为Login
类
错误如下所示:
12969-12969/com.client.businesstracker E/AndroidRuntime﹕ FATAL EXCEPTION: main
安卓.content.ActivityNotFoundException: Unable to find explicit activity class {com.client.businesstracker/com.client.businesstracker.Login}; have you declared this activity in your AndroidManifest.xml?
at 安卓.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1624)
at 安卓.app.Instrumentation.execStartActivity(Instrumentation.java:1423)
at 安卓.app.Activity.startActivityForResult(Activity.java:3388)
at 安卓.app.Activity.startActivityForResult(Activity.java:3349)
at 安卓.app.Activity.startActivity(Activity.java:3584)
at 安卓.app.Activity.startActivity(Activity.java:3552)
at com.client.businesstracker.activity.LoginActivity$3.onResponse(LoginActivity.java:150)
at com.client.businesstracker.activity.LoginActivity$3.onResponse(LoginActivity.java:120)
at com.安卓.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60)
这是我的安卓清单文件
<activity
安卓:name=".SlideActivity"
安卓:label="@string/app_name" >
<intent-filter>
<action 安卓:name="安卓.intent.action.MAIN" />
<category 安卓:name="安卓.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity 安卓:name=".activity.LoginActivity"
安卓:label="@string/app_name" />
<activity 安卓:name=".activity.RegisterActivity"
安卓:label="@string/app_name" />
这是登录信息。java文件
package com.client.businesstracker;
import com.client.businesstracker.activity.LoginActivity;
import com.client.businesstracker.loginandregistration.helper.SQLiteHandler;
import com.client.businesstracker.loginandregistration.helper.SessionManager;
public class Login extends 安卓.support.v4.app.Fragment {
private TextView txtName;
private TextView txtServerID;
private TextView txtClientID;
private Button btnLogout;
private SQLiteHandler db;
private SessionManager session;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View rootview1 = inflater.inflate(R.layout.activity_main, container, false);
txtName = (TextView) rootview1.findViewById(R.id.name);
txtServerID = (TextView) rootview1.findViewById(R.id.server_ID);
txtClientID = (TextView) rootview1.findViewById(R.id.client_ID);
btnLogout = (Button) rootview1.findViewById(R.id.btnLogout);
// SqLite database handler
db = new SQLiteHandler(getActivity());
// session manager
session = new SessionManager(getActivity());
if (!session.isLoggedIn()) {
logoutUser();
}
// Fetching user details from sqlite
HashMap<String, String> user = db.getUserDetails();
String name = user.get("name");
String serverID = user.get("serverID");
String clientID = user.get("clientID");
// Displaying the user details on the screen
txtName.setText(name);
txtServerID.setText(serverID);
txtClientID.setText(clientID);
// Logout button click event
btnLogout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
logoutUser();
}
});
return rootview1;
}
/**
* Logging out the user. Will set isLoggedIn flag to false in shared
* preferences Clears the user data from sqlite users table
* */
private void logoutUser() {
session.setLogin(false);
db.deleteUsers();
// Launching the login activity
Intent intent = new Intent(this.getActivity(), LoginActivity.class);
startActivity(intent);
getActivity().finish();
}
}
这里是SlideActivity。java文件,我将从中创建登录文件的对象navigationDrawerItem
package com.client.businesstracker;
import 安卓.app.Activity;
import 安卓.support.v7.app.AppCompatActivity;
import 安卓.support.v7.app.ActionBar;
import 安卓.support.v4.app.Fragment;
import 安卓.support.v4.app.FragmentManager;
import 安卓.content.Context;
import 安卓.os.Build;
import 安卓.os.Bundle;
import 安卓.util.Log;
import 安卓.view.Gravity;
import 安卓.view.LayoutInflater;
import 安卓.view.Menu;
import 安卓.view.MenuItem;
import 安卓.view.View;
import 安卓.view.ViewGroup;
import 安卓.support.v4.widget.DrawerLayout;
import 安卓.widget.AdapterView;
import 安卓.widget.ArrayAdapter;
import 安卓.widget.ListView;
import 安卓.widget.TextView;
public class SlideActivity extends AppCompatActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in {@link #restoreActionBar()}.
*/
private CharSequence mTitle;
//private ListView mDrawerList;
//private ArrayAdapter<String> mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_slide);
// mDrawerList = (ListView)findViewById(R.id.left_drawer);
// addDrawerItems();
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
@Override
public void onNavigationDrawerItemSelected(int position) {
// update the main content by replacing fragments
Fragment objFragment = null;
Log.i("MyActivity", "onNavigationDrawerItemSelected() — get item number " + position);
switch (position)
{
case 0:
objFragment = new Login();
break;
case 1:
objFragment = new Connect();
break;
case 2:
objFragment = new Home();
break;
case 3:
objFragment = new Preferences();
break;
case 4:
objFragment = new AboutUs();
break;
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, objFragment)
.commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 0:
mTitle = getString(R.string.title_section1);
break;
case 1:
mTitle = getString(R.string.title_section2);
break;
case 2:
mTitle = getString(R.string.title_section3);
break;
case 3:
mTitle = getString(R.string.title_section4);
break;
case 4:
mTitle = getString(R.string.title_section5);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.slide, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_slide, container, false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((SlideActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
这里是物流活动。爪哇
package com.client.businesstracker.activity;
import 安卓.app.Activity;
import 安卓.app.ProgressDialog;
import 安卓.content.Intent;
import 安卓.os.Bundle;
import 安卓.util.Log;
import 安卓.view.View;
import 安卓.widget.Button;
import 安卓.widget.EditText;
import 安卓.widget.Toast;
import com.安卓.volley.Request.Method;
import com.安卓.volley.Response;
import com.安卓.volley.VolleyError;
import com.安卓.volley.toolbox.StringRequest;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
import com.client.businesstracker.Login;
import com.client.businesstracker.R;
import com.client.businesstracker.loginandregistration.app.AppConfig;
import com.client.businesstracker.loginandregistration.app.AppController;
import com.client.businesstracker.loginandregistration.helper.SQLiteHandler;
import com.client.businesstracker.loginandregistration.helper.SessionManager;
public class LoginActivity extends Activity {
private static final String TAG = RegisterActivity.class.getSimpleName();
private Button btnLogin;
private Button btnLinkToRegister;
private EditText inputServerID;
private EditText inputClientID;
private EditText inputPassword;
private ProgressDialog pDialog;
private SessionManager session;
private SQLiteHandler db;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
inputServerID = (EditText) findViewById(R.id.serverID);
inputClientID = (EditText) findViewById(R.id.clientID);
inputPassword = (EditText) findViewById(R.id.password);
btnLogin = (Button) findViewById(R.id.btnLogin);
btnLinkToRegister = (Button) findViewById(R.id.btnLinkToRegisterScreen);
// Progress dialog
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
// SQLite database handler
db = new SQLiteHandler(getApplicationContext());
// Session manager
session = new SessionManager(getApplicationContext());
// Check if user is already logged in or not
if (session.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(LoginActivity.this, Login.class);
startActivity(intent);
finish();
}
// Login button Click Event
btnLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String serverID = inputServerID.getText().toString().trim();
String clientID = inputClientID.getText().toString().trim();
String password = inputPassword.getText().toString().trim();
// Check for empty data in the form
if (!serverID.isEmpty() && !password.isEmpty() && !clientID.isEmpty()) {
// login user
checkLogin(serverID, clientID,password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(),
"Please enter the credentials!", Toast.LENGTH_LONG)
.show();
}
}
});
// Link to Register Screen
btnLinkToRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(getApplicationContext(),
RegisterActivity.class);
startActivity(i);
finish();
}
});
}
/**
* function to verify login details in mysql db
* */
private void checkLogin(final String serverID, final String clientID, final String password) {
// Tag used to cancel the request
String tag_string_req = "req_login";
pDialog.setMessage("Logging in ...");
showDialog();
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_LOGIN, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Login Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully logged in
// Create login session
session.setLogin(true);
// Now store the user in SQLite
String uid = jObj.getString("uid");
JSONObject user = jObj.getJSONObject("user");
String name = user.getString("name");
String serverID = user.getString("serverID");
String clientID = user.getString("clientID");
// Inserting row in users table
db.addUser(name, serverID, clientID);
// Launch main activity
Intent intent = new Intent(LoginActivity.this, Login.class);
startActivity(intent);
finish();
} else {
// Error in login. Get the error message
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Login Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("serverID", serverID);
params.put("clientID", clientID);
params.put("password", password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
}
# 1 楼答案
在考虑其他事情之前,先检查异常 通用域名格式。客户商业追踪者。登录 不在你的舱单上
# 2 楼答案
基本上你没有定义登录。在清单文件中分类
您必须在清单中添加登录活动,如下所示:
希望这对你有帮助