Java 单击“登录”按钮后，如何作为导航抽屉活动登录？

我有一个小问题。这里我有三个活动，LoginActivity、RegisterActivity和UserActivity（NavigationDrawer活动），我应该在按下login按钮后立即导航到UserActivity（这是NavigaitonDrawer活动），但当我输入凭据并单击login按钮时，应用程序强制自动关闭。请帮助我。我在这里发布了我的全部java代码：

LoginActivity.java

package com.androidtutorialpoint.androidlogin;
import android.app.ProgressDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Button;
import android.widget.EditText;
import android.content.Intent;
import android.view.View;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;


public class LoginActivity extends AppCompatActivity {

    private static final String TAG = "LoginActivity";
    private static final String URL_FOR_LOGIN = "http://192.168.43.97/android_login_example/login.php";
    ProgressDialog progressDialog;
    private EditText loginInputEmail, loginInputPassword;
    private Button btnlogin;
    private Button btnLinkSignup;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        loginInputEmail = (EditText) findViewById(R.id.login_input_email);
        loginInputPassword = (EditText) findViewById(R.id.login_input_password);
        btnlogin = (Button) findViewById(R.id.btn_login);
        btnLinkSignup = (Button) findViewById(R.id.btn_link_signup);
        // Progress dialog
        progressDialog = new ProgressDialog(this);
        progressDialog.setCancelable(false);

        btnlogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                loginUser(loginInputEmail.getText().toString(),
                        loginInputPassword.getText().toString());
            }
        });

        btnLinkSignup.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent i = new Intent(getApplicationContext(), RegisterActivity.class);
                startActivity(i);
            }
        });
    }

    private void loginUser( final String email, final String password) {
        // Tag used to cancel the request
        String cancel_req_tag = "login";
        progressDialog.setMessage("Logging you in...");
        showDialog();
        StringRequest strReq = new StringRequest(Request.Method.POST,
                URL_FOR_LOGIN, new Response.Listener<String>() {

            @Override
            public void onResponse(String response) {
                Log.d(TAG, "Register Response: " + response.toString());
                hideDialog();
                try {
                    JSONObject jObj = new JSONObject(response);
                    boolean error = jObj.getBoolean("error");

                    if (!error) {
                        String user = jObj.getJSONObject("user").getString("name");
                        // Launch User activity
                        Intent intent = new Intent(
                                LoginActivity.this,
                                UserActivity.class);
                        intent.putExtra("username", user);
                        startActivity(intent);
                        finish();
                    } else {

                        String errorMsg = jObj.getString("error_msg");
                        Toast.makeText(getApplicationContext(),
                                errorMsg, Toast.LENGTH_LONG).show();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

            }
        }, 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 params to login url
                Map<String, String> params = new HashMap<String, String>();
                params.put("email", email);
                params.put("password", password);
                return params;
            }

        };
        // Adding request to request queue
        AppSingleton.getInstance(getApplicationContext()).addToRequestQueue(strReq,cancel_req_tag);
    }

    private void showDialog() {
        if (!progressDialog.isShowing())
            progressDialog.show();
    }
    private void hideDialog() {
        if (progressDialog.isShowing())
            progressDialog.dismiss();
    }

}

package com.androidtutorialpoint.androidlogin;

import android.app.ProgressDialog;
import android.content.Intent;
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.RadioGroup;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;


public class RegisterActivity extends AppCompatActivity {

    private static final String TAG = "RegisterActivity";
    private static final String URL_FOR_REGISTRATION = "http://192.168.43.97/android_login_example/register.php";
    ProgressDialog progressDialog;

    private EditText signupInputName, signupInputEmail, signupInputPassword, signupInputAge;
    private Button btnSignUp;
    private Button btnLinkLogin;
    private RadioGroup genderRadioGroup;

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

        // Progress dialog
        progressDialog = new ProgressDialog(this);
        progressDialog.setCancelable(false);

        signupInputName = (EditText) findViewById(R.id.signup_input_name);
        signupInputEmail = (EditText) findViewById(R.id.signup_input_email);
        signupInputPassword = (EditText) findViewById(R.id.signup_input_password);
        signupInputAge = (EditText) findViewById(R.id.signup_input_age);

        btnSignUp = (Button) findViewById(R.id.btn_signup);
        btnLinkLogin = (Button) findViewById(R.id.btn_link_login);

        genderRadioGroup = (RadioGroup) findViewById(R.id.gender_radio_group);
        btnSignUp.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                submitForm();
            }
        });
        btnLinkLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent i = new Intent(getApplicationContext(),LoginActivity.class);
                startActivity(i);
            }
        });
    }

    private void submitForm() {

        int selectedId = genderRadioGroup.getCheckedRadioButtonId();
        String gender;
        if(selectedId == R.id.female_radio_btn)
            gender = "Female";
        else
            gender = "Male";

        registerUser(signupInputName.getText().toString(),
                     signupInputEmail.getText().toString(),
                     signupInputPassword.getText().toString(),
                     gender,
                     signupInputAge.getText().toString());
    }

    private void registerUser(final String name,  final String email, final String password,
                              final String gender, final String dob) {
        // Tag used to cancel the request
        String cancel_req_tag = "register";

        progressDialog.setMessage("Adding you ...");
        showDialog();

        StringRequest strReq = new StringRequest(Request.Method.POST,
                URL_FOR_REGISTRATION, new Response.Listener<String>() {

            @Override
            public void onResponse(String response) {
                Log.d(TAG, "Register Response: " + response.toString());
                hideDialog();

                try {
                    JSONObject jObj = new JSONObject(response);
                    boolean error = jObj.getBoolean("error");

                    if (!error) {
                        String user = jObj.getJSONObject("user").getString("name");
                        Toast.makeText(getApplicationContext(), "Hi " + user +", You are successfully Added!", Toast.LENGTH_SHORT).show();

                        // Launch login activity
                        Intent intent = new Intent(
                                RegisterActivity.this,
                                LoginActivity.class);
                        startActivity(intent);
                        finish();
                    } else {

                        String errorMsg = jObj.getString("error_msg");
                        Toast.makeText(getApplicationContext(),
                                errorMsg, Toast.LENGTH_LONG).show();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e(TAG, "Registration Error: " + error.getMessage());
                Toast.makeText(getApplicationContext(),
                        error.getMessage(), Toast.LENGTH_LONG).show();
                hideDialog();
            }
        }) {
            @Override
            protected Map<String, String> getParams() {
                // Posting params to register url
                Map<String, String> params = new HashMap<String, String>();
                params.put("name", name);
                params.put("email", email);
                params.put("password", password);
                params.put("gender", gender);
                params.put("age", dob);
                return params;
            }
        };
        // Adding request to request queue
        AppSingleton.getInstance(getApplicationContext()).addToRequestQueue(strReq, cancel_req_tag);
    }

    private void showDialog() {
        if (!progressDialog.isShowing())
            progressDialog.show();
    }

    private void hideDialog() {
        if (progressDialog.isShowing())
            progressDialog.dismiss();
    }

}

请帮助我的朋友，如果需要，我也可以发布xml布局文件和logcat

堆栈跟踪：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.androidtutorialpoint.androidlogin/com.androidtutorialpoint.androidlogin.UserActivity}: android.view.InflateException: Binary XML file line #17: Binary XML file line #17: Error inflating class android.support.design.widget.NavigationView
Caused by: android.view.InflateException: Binary XML file line #17: Binary XML file line #17: Error inflating class android.support.design.widget.NavigationView
                                                                                      Caused by: android.view.InflateException: Binary XML file line #17: Error inflating class android.support.design.widget.NavigationView
                                                                                      Caused by: java.lang.reflect.InvocationTargetException

XML布局： 活动用户：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start"
    tools:context=".UserActivity">

    <include
        layout="@layout/app_bar_user"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_user"
        app:menu="@menu/activity_user_drawer" />

</android.support.v4.widget.DrawerLayout>

projectbuild.gradle

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

</resources>

@颜色/原色
@颜色/原色暗
@颜色/颜色重音
假的
真的

Yes post stack trace…@SouravGanguly我可以发布日志，因为它太长了。您不必发布整个日志，只需发布错误开始的位置和下面的5-6行------崩溃开始03-16 18:40:21.640 2558-2558/com.androidtutorialpoint.androidlogin E/AndroidRuntime:FATAL EXCEPTION:mainproces:com.androidtutorialpoint.androidlogin，PID:2558 java.lang.RuntimeException:无法启动活动组件信息{com.androidtutorialpoint.androidlogin/com.androidtutorialpoint.androidlogin.UserActivity}：android.view.InflateException:Binary-XML文件行#17:Binary-XML文件行#17:Error-inflating类android.support.design.widget.NavigationViewpost在帖子中发布堆栈跟踪。。。。

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

</resources>