Question

我面临一个非常奇怪的问题。我正在尝试启动一项活动，但不是那样，另一项活动正在开放。我正在尝试打开RegActivity，我确实在mainfiest中指定了它并且还使它成为Launcher活动但是当我运行应用程序时“MainActivity”正在调用。 MainActivity甚至不是Launcher或Default活动。我清理了项目，重建了它。但是，仍然没有任何作用。我被卡住了。我浪费了我的一整天，没有任何帮助我。请帮助伙计!!! 停止低估它。如果你不知道答案，那就离开吧。

我最主要的

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.solodroid.ecommerce" >

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.VIBRATE" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <application
        android:allowBackup="true"
        android:hardwareAccelerated="true"
        android:icon="@drawable/ic_launcher"
        android:label="Frizzy"
        android:theme="@style/AppTheme2" >
        <activity
            android:name="com.solodroid.ecommerce.RegActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar"
            >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.solodroid.ecommerce.MainActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait" >

        </activity>
        <activity
            android:name="com.solodroid.ecommerce.ActivityCategoryList"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityMenuList"
            android:configChanges="keyboardHidden|orientation"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityMenuDetail"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityCart"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityCheckout"
            android:configChanges="keyboardHidden|orientation"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="stateHidden" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityConfirmMessage"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityContactUs"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityProfile"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityInformation"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.ActivityAbout"
            android:screenOrientation="portrait" />
        <activity
            android:name="com.solodroid.ecommerce.LoginActivity"
            android:screenOrientation="portrait"
            android:theme="@style/AppTheme.NoActionBar"/>

        <service android:name="com.parse.PushService" />

        <receiver android:name="com.parse.ParseBroadcastReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" 
               />
                <action android:name="android.intent.action.USER_PRESENT" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

RegActivity.java

package com.solodroid.ecommerce;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONException;

import java.io.IOException;
import java.util.HashMap;

public class RegActivity extends AppCompatActivity {

    private EditText etid, etname, etstorename, etemail, etphone, etdoj;
    Button btnregister;
    TextView tvlogin;
    private ParseContent parseContent;
    PreferenceHelper preferenceHelper;
    private final int RegTask = 1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_reg);

        preferenceHelper = new PreferenceHelper(this);
        parseContent = new ParseContent(this);

        if(preferenceHelper.getIsLogin()){
            Intent intent = new Intent(RegActivity.this,MainActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
            this.finish();
        }

        //etid = (EditText) findViewById(R.id.etmi_id);
        etname = (EditText) findViewById(R.id.etname);
        //etstorename = (EditText) findViewById(R.id.etstore_name);
        etemail = (EditText) findViewById(R.id.etemail);
        etphone = (EditText) findViewById(R.id.etphone);
       // etdoj = (EditText) findViewById(R.id.etdoj);
        btnregister = (Button) findViewById(R.id.btn);
        tvlogin = (TextView) findViewById(R.id.tvlogin);

        tvlogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(RegActivity.this,LoginActivity.class);
                startActivity(intent);
            }
        });

        btnregister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    register();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        });

    }

    private void register() throws IOException, JSONException {

        if (!AndyUtils.isNetworkAvailable(RegActivity.this)) {
            Toast.makeText(RegActivity.this, "Internet is required!", Toast.LENGTH_SHORT).show();
            return;
        }
        AndyUtils.showSimpleProgressDialog(RegActivity.this);
        final HashMap<String, String> map = new HashMap<>();
       // map.put(AndyConstants.Params.MI_ID, etid.getText().toString());
        map.put(AndyConstants.Params.NAME, etname.getText().toString());
       // map.put(AndyConstants.Params.STORE_NAME, etstorename.getText().toString());
        map.put(AndyConstants.Params.EMAIL, etemail.getText().toString());
        map.put(AndyConstants.Params.PHONE, etphone.getText().toString());
        //map.put(AndyConstants.Params.DOJ, etdoj.getText().toString());
        new AsyncTask<Void, Void, String>(){
            protected String doInBackground(Void[] params) {
                String response="";
                try {
                    HttpRequest req = new HttpRequest(AndyConstants.ServiceType.REGISTER);
                    response = req.prepare(HttpRequest.Method.POST).withData(map).sendAndReadString();
                } catch (Exception e) {
                    response=e.getMessage();
                }
                return response;
            }
            protected void onPostExecute(String result) {
                //do something with response
                Log.d("newwwss", result);
                onTaskCompleted(result, RegTask);
            }
        }.execute();
    }

    private void onTaskCompleted(String response,int task) {
        Log.d("responsejson", response.toString());
        AndyUtils.removeSimpleProgressDialog();  //will remove progress dialog
        switch (task) {
            case RegTask:

                if (parseContent.isSuccess(response)) {

                    parseContent.saveInfo(response);
                    Toast.makeText(RegActivity.this, "Registered Successfully!", Toast.LENGTH_SHORT).show();
                    Intent intent = new Intent(RegActivity.this,MainActivity.class);
                    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivity(intent);
                    this.finish();

                }else {
                    Toast.makeText(RegActivity.this, parseContent.getErrorMessage(response), Toast.LENGTH_SHORT).show();
                }
        }
    }
}

LoginActivity.java

package com.solodroid.ecommerce;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONException;

import java.io.IOException;
import java.util.HashMap;

public class LoginActivity extends AppCompatActivity {

    private EditText etemail, etpassword;
     Button btnlogin;
     TextView tvreg;
    private ParseContent parseContent;
    private final int LoginTask = 1;
     PreferenceHelper preferenceHelper;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        parseContent = new ParseContent(this);
        preferenceHelper = new PreferenceHelper(this);

        etemail = (EditText) findViewById(R.id.etusername);
        etpassword = (EditText) findViewById(R.id.etpassword);
        btnlogin = (Button) findViewById(R.id.btn);
        tvreg = (TextView) findViewById(R.id.tvreg);

        tvreg.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(LoginActivity.this, RegActivity.class);
                startActivity(intent);
            }
        });

        btnlogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    login();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        });
    }

    private void login() throws IOException, JSONException {

        if (!AndyUtils.isNetworkAvailable(LoginActivity.this)) {
            Toast.makeText(LoginActivity.this, "Internet is required!", Toast.LENGTH_SHORT).show();
            return;
        }
        AndyUtils.showSimpleProgressDialog(LoginActivity.this);
        final HashMap<String, String> map = new HashMap<>();
        map.put(AndyConstants.Params.EMAIL, etemail.getText().toString());
        map.put(AndyConstants.Params.PASSWORD, etpassword.getText().toString());
        new AsyncTask<Void, Void, String>(){
            protected String doInBackground(Void[] params) {
                String response="";
                try {
                    HttpRequest req = new HttpRequest(AndyConstants.ServiceType.LOGIN);
                    response = req.prepare(HttpRequest.Method.POST).withData(map).sendAndReadString();
                } catch (Exception e) {
                    response=e.getMessage();
                }
                return response;
            }
            protected void onPostExecute(String result) {
                //do something with response
                Log.d("newwwss", result);
                onTaskCompleted(result,LoginTask);
            }
        }.execute();
    }

    private void onTaskCompleted(String response, int task) {
        Log.d("responsejson", response.toString());
        AndyUtils.removeSimpleProgressDialog();  //will remove progress dialog
        switch (task) {
            case LoginTask:
                if (parseContent.isSuccess(response)) {
                    parseContent.saveInfo(response);
                    Toast.makeText(LoginActivity.this, "Login Successfully!", Toast.LENGTH_SHORT).show();
                    Intent intent = new Intent(LoginActivity.this,RegActivity.class);
                    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivity(intent);
                    this.finish();
                }else {
                    Toast.makeText(LoginActivity.this, parseContent.getErrorMessage(response), Toast.LENGTH_SHORT).show();
                }
        }
    }
}

MainActivity.java

package com.solodroid.ecommerce;

import java.io.IOException;
import java.util.ArrayList;

import com.parse.Parse;
import com.parse.ParseAnalytics;
import com.parse.ParseInstallation;
import com.parse.PushService;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.AlertDialog;
import android.app.Fragment;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.database.SQLException;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;

@SuppressLint("NewApi")
public class MainActivity extends FragmentActivity {
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;

    // nav drawer title
    private CharSequence mDrawerTitle;

    // used to store app title
    private CharSequence mTitle;

    // slide menu items
    private String[] navMenuTitles;
    private TypedArray navMenuIcons;

    private ArrayList<NavDrawerItem> navDrawerItems;
    private AdapterNavDrawerList adapter;

    // declare dbhelper and adapter object
    static DBHelper dbhelper;
    AdapterMainMenu mma;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.nav_drawer_main);

        // Parse push notification
        Parse.initialize(this, getString(R.string.parse_application_id), getString(R.string.parse_client_key));
        ParseAnalytics.trackAppOpened(getIntent());
        PushService.setDefaultPushCallback(this, MainActivity.class);
        ParseInstallation.getCurrentInstallation().saveInBackground();

        mTitle = mDrawerTitle = getTitle();

        // load slide menu items
        navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

        // nav drawer icons from resources
        navMenuIcons = getResources().obtainTypedArray(R.array.nav_drawer_icons);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.list_slidermenu);

        mDrawerLayout.setDrawerShadow(R.drawable.navigation_drawer_shadow, GravityCompat.START);

        navDrawerItems = new ArrayList<NavDrawerItem>();

        // adding nav drawer items to array
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));

        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));

        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -1)));

        navDrawerItems.add(new NavDrawerItem(navMenuTitles[7], navMenuIcons.getResourceId(7, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[8], navMenuIcons.getResourceId(8, -1)));
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[9], navMenuIcons.getResourceId(9, -1)));

        // Recycle the typed array
        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        // setting the nav drawer list adapter
        adapter = new AdapterNavDrawerList(getApplicationContext(), navDrawerItems);
        mDrawerList.setAdapter(adapter);

        // enabling action bar app icon and behaving it as toggle button
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        ActionBar bar = getActionBar();
        bar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.header)));

        // get screen device width and height
        DisplayMetrics dm = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);

        // checking internet connection
        if (!Constant.isNetworkAvailable(MainActivity.this)) {
            Toast.makeText(MainActivity.this, getString(R.string.no_internet), Toast.LENGTH_SHORT).show();
        }

        mma = new AdapterMainMenu(this);
        dbhelper = new DBHelper(this);

        // create database
        try {
            dbhelper.createDataBase();
        } catch (IOException ioe) {
            throw new Error("Unable to create database");
        }

        // then, the database will be open to use
        try {
            dbhelper.openDataBase();
        } catch (SQLException sqle) {
            throw sqle;
        }

        // if user has already ordered food previously then show confirm dialog
        if (dbhelper.isPreviousDataExist()) {
            showAlertDialog();
        }

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer, // nav
                                                                                                // menu
                                                                                                // toggle
                                                                                                // icon
                R.string.app_name, // nav drawer open - description for
                                    // accessibility
                R.string.app_name // nav drawer close - description for
                                    // accessibility
        ) {
            public void onDrawerClosed(View view) {
                getActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                // calling onPrepareOptionsMenu() to hide action bar icons
                invalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            // on first time display view for first nav item
            displayView(0);
        }
    }

    // show confirm dialog to ask user to delete previous order or not
    void showAlertDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(R.string.confirm);
        builder.setMessage(getString(R.string.db_exist_alert));
        builder.setCancelable(false);
        builder.setPositiveButton(getString(R.string.yes), new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                // delete order data when yes button clicked
                dbhelper.deleteAllData();
                dbhelper.close();

            }
        });

        builder.setNegativeButton(getString(R.string.no), new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                // close dialog when no button clicked
                dbhelper.close();
                dialog.cancel();
            }
        });
        AlertDialog alert = builder.create();
        alert.show();

    }

    @Override
    public void onBackPressed() {
        // TODO Auto-generated method stub
        dbhelper.deleteAllData();
        dbhelper.close();
        finish();
        overridePendingTransition(R.anim.open_main, R.anim.close_next);
    }

    /**
     * Slide menu item click listener
     */
    private class SlideMenuClickListener implements ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            // display view for selected nav drawer item
            displayView(position);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // toggle nav drawer on selecting action bar app icon/title
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        // Handle action bar actions click
        switch (item.getItemId()) {
        case R.id.rate_app:
            try {
                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + getPackageName())));
            } catch (android.content.ActivityNotFoundException anfe) {
                startActivity(new Intent(Intent.ACTION_VIEW,
                        Uri.parse("http://play.google.com/store/apps/details?id=" + getPackageName())));
            }
            return true;
        case R.id.more_app:
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.more_apps))));
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    /*
     * * Called when invalidateOptionsMenu() is triggered
     */
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        // if nav drawer is opened, hide the action items
        boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
        menu.findItem(R.id.ic_menu).setVisible(!drawerOpen);
        return super.onPrepareOptionsMenu(menu);
    }

    /**
     * Diplaying fragment view for selected nav drawer list item
     */
    private void displayView(int position) {
        // update the main content by replacing fragments
        Fragment fragment = null;
        switch (position) {
        case 0:
            fragment = new ActivityHome();
            break;
        case 1:
            startActivity(new Intent(getApplicationContext(), ActivityCategoryList.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);
            break;
        case 2:
            startActivity(new Intent(getApplicationContext(), ActivityCart.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);
            break;
        case 3:
            startActivity(new Intent(getApplicationContext(), ActivityCheckout.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);
            break;
        case 4:
            startActivity(new Intent(getApplicationContext(), ActivityProfile.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);
            break;
        case 5:
            startActivity(new Intent(getApplicationContext(), ActivityInformation.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);
            break;
        case 6:
            startActivity(new Intent(getApplicationContext(), ActivityAbout.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);

            break;
        case 7:
            Intent sendInt = new Intent(Intent.ACTION_SEND);
            sendInt.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.app_name));
            sendInt.putExtra(Intent.EXTRA_TEXT, "E-Commerce Android App\n\"" + getString(R.string.app_name)
                    + "\" \nhttps://play.google.com/store/apps/details?id=" + getPackageName());
            sendInt.setType("text/plain");
            startActivity(Intent.createChooser(sendInt, "Share"));
            break;
        case 8:
            startActivity(new Intent(getApplicationContext(), ActivityContactUs.class));
            overridePendingTransition(R.anim.open_next, R.anim.close_next);

            break;
        case 9:
            dbhelper.deleteAllData();
            dbhelper.close();
            MainActivity.this.finish();
            overridePendingTransition(R.anim.open_next, R.anim.close_next);

            break;

        default:
            break;
        }

        if (fragment != null) {
            android.app.FragmentManager fragmentManager = getFragmentManager();
            fragmentManager.beginTransaction().replace(R.id.frame_container, fragment).commit();

            // update selected item and title, then close the drawer
            mDrawerList.setItemChecked(position, true);
            mDrawerList.setSelection(position);
            setTitle(navMenuTitles[position]);
            mDrawerLayout.closeDrawer(mDrawerList);
        } else {
            // error in creating fragment
            Log.e("MainActivity", "Error in creating fragment");
        }
    }

    @Override
    public void setTitle(CharSequence title) {
        mTitle = title;
        getActionBar().setTitle(mTitle);
    }

    /**
     * When using the ActionBarDrawerToggle, you must call it during
     * onPostCreate() and onConfigurationChanged()...
     */

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Pass any configuration change to the drawer toggls
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

}

请告诉我这里有什么问题？我找不到任何东西。

Answer 1

你的onCreate（）

中的代码怎么样？

if(preferenceHelper.getIsLogin()){
            Intent intent = new Intent(RegActivity.this,MainActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
            this.finish();
        }

如果preferenceHelper.getIsLogin()为真，您将无法看到您的RegActivity，因为它会立即启动MainActivity。

活动未开始;另一项活动正在开始

1 个答案: