如何在数据库中保存数据并在保存后打开新活动？

Question

需要帮助。当用户填写他们的数据并保存到数据库时，我希望按钮在保存后打开新活动...到目前为止，我的应用程序刚刚保存了数据并且只停留在activity_form.xml.need帮助上如何如果有人可以帮我解决这个问题，那么在保存数据后让提交按钮打开新活动会非常感激。 TQ

这是我的formActivity.java：

import android.app.Activity;
        import android.content.Intent;
        import android.database.sqlite.SQLiteDatabase;
        import android.support.v7.app.AppCompatActivity;
        import android.os.Bundle;
        import android.text.TextUtils;
        import android.util.Patterns;
        import android.view.View;
        import android.widget.AdapterView;
        import android.widget.ArrayAdapter;
        import android.widget.Button;
        import android.widget.CheckBox;
        import android.widget.EditText;
        import android.widget.RadioButton;
        import android.widget.RadioGroup;
        import android.widget.Spinner;
        import android.widget.Toast;
        import android.view.View.OnClickListener;

        import com.android.volley.Request;
        import com.android.volley.RequestQueue;
        import com.android.volley.Response;
        import com.android.volley.VolleyError;
        import com.android.volley.toolbox.StringRequest;
        import com.android.volley.toolbox.Volley;

        import java.util.ArrayList;
        import java.util.HashMap;
        import java.util.List;
        import java.util.Map;
        import java.util.regex.Matcher;
        import java.util.regex.Pattern;

public class FormActivity extends Activity implements View.OnClickListener, AdapterView.OnItemSelectedListener {

    private static final String REGISTER_URL = "http://khaty-ismail0.rhcloud.com/phptutorial/submitData.php";
    private static final String SPINNER_URL = "http://khaty-ismail0.rhcloud.com/phptutorial/spinner_data.php";

    public static final String KEY_NAME= "Name";
    public static final String KEY_AGE = "Age";
    public static final String KEY_EMAIL = "Email";
    public static String KEY_GENDER = "gender";
    public static final String KEY_PHONE = "Phone";
    public static final String KEY_DESCRIPTION = "Description";
    public static final String KEY_TICKET = "ticket_id";
    public static final String KEY_SOLUTION = "solution";
    public static final String JSON_ARRAY = "result";
    String gender ="";

    private EditText name_eT;
    private EditText age_eT;
    private EditText email_eT;
    private EditText phone_eT;
    private EditText descr_eT;

    private RadioGroup radioGroup;

    private Button subm_btn;
    private Spinner spinner;

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

        name_eT = (EditText) findViewById(R.id.name_eT);
        age_eT = (EditText) findViewById(R.id.age_eT);
        email_eT= (EditText) findViewById(R.id.email_eT);
        phone_eT= (EditText) findViewById(R.id.phone_eT);
        descr_eT= (EditText) findViewById(R.id.descr_eT);



        subm_btn = (Button) findViewById(R.id.subm_btn);
        subm_btn.setOnClickListener(this);


        spinner = (Spinner) findViewById(R.id.spinner);
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(getBaseContext(), spinner.getSelectedItem().toString(),
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });
    }
    private void registerUser(){
        final String Name = name_eT.getText().toString().trim();
        final String Age = age_eT.getText().toString().trim();
        final String Email = email_eT.getText().toString().trim();
        final String Phone = phone_eT.getText().toString().trim();
        final String Description = descr_eT.getText().toString().trim();

        if(TextUtils.isEmpty(Name)) {
            name_eT.setError("Please enter your name");
            return;
        }else if(TextUtils.isEmpty(Age)) {
            age_eT.setError("Please enter your age");
            return;
        }else if(TextUtils.isEmpty(Phone)) {
            phone_eT.setError("Please enter your phone");
            return;
        }else if(TextUtils.isEmpty(Email)) {
            email_eT.setError("Please enter your email");
            return;
        }else if(TextUtils.isEmpty(Description)) {
            descr_eT.setError("Please enter your issue");
            return;
        }

        final RadioGroup radioGroup =(RadioGroup)findViewById(R.id.radioGroup);
        final RadioButton male_rb=(RadioButton)findViewById(R.id.male_rb);
        final RadioButton female_rb=(RadioButton)findViewById(R.id.female_rb);

        if (radioGroup.getCheckedRadioButtonId()== male_rb.getId())
        {
            KEY_GENDER = "Male";
        }
        else if (radioGroup.getCheckedRadioButtonId()==female_rb.getId()){
            KEY_GENDER = "Female";
        }

        StringRequest stringRequest = new StringRequest(Request.Method.POST, REGISTER_URL,
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        Toast.makeText(FormActivity.this,response,Toast.LENGTH_LONG).show();
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(FormActivity.this,error.toString(),Toast.LENGTH_LONG).show();
                    }
                }){
            @Override
            protected Map<String,String> getParams(){
                Map<String,String> params = new HashMap<String, String>();
                params.put(KEY_NAME,Name);
                params.put(KEY_AGE,Age);
                params.put(KEY_GENDER,gender);
                params.put(KEY_EMAIL, Email);
                params.put(KEY_PHONE, Phone);
                params.put(KEY_DESCRIPTION, Description);
                return params;
            }

        };

        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);
    }
    public void onCheckboxClicked(View V) {

        boolean checked = ((RadioButton) V).isChecked();

        switch (V.getId()) {
            case R.id.male_rb:
                if (checked)

                    break;

            case R.id.female_rb:
                if (checked)

                    break;
        }
    }

    @Override
    public void onClick(View v) {
        if(v == subm_btn){
            registerUser();
        }
    }
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {
    }

    /*public void submitData(View view) {
        Intent getResponse =  new Intent(this,SubmitData.class);

        final int result = 1;

        startActivityForResult(getResponse, result);
    }*/
}

以下是activity_form.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    android:background="@color/buttonFont"
    tools:context="com.example.khadijah.brucertv2.FormActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/User_info"
        android:id="@+id/userInfo"
        android:textSize="30sp"
        android:textColor="@color/colorFont"
        android:textStyle="bold"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"/>

    <TextView
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:text="Name:"
        android:id="@+id/name_tV"
        android:textColor="@color/colorFont"
        android:layout_marginTop="24dp"
        android:layout_below="@+id/userInfo"
        android:layout_alignLeft="@+id/userInfo"
        android:layout_alignStart="@+id/userInfo" />

    <TextView
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:text="Age:"
        android:id="@+id/age_tV"
        android:textColor="@color/colorFont"
        android:layout_alignBottom="@+id/age_eT"
        android:layout_alignLeft="@+id/name_tV"
        android:layout_alignStart="@+id/name_tV" />

    <TextView
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:text="Gender"
        android:id="@+id/gender_tV"
        android:textColor="@color/colorFont"
        android:layout_below="@+id/age_tV"
        android:layout_alignLeft="@+id/age_tV"
        android:layout_alignStart="@+id/age_tV"
        android:layout_marginTop="24dp" />

    <TextView
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:text="Email:"
        android:id="@+id/email_tV"
        android:textColor="@color/colorFont"
        android:layout_alignBottom="@+id/email_eT"
        android:layout_alignLeft="@+id/name_tV"
        android:layout_alignStart="@+id/name_tV" />

    <TextView
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:text="Phone"
        android:id="@+id/phone_tV"
        android:textColor="@color/colorFont"
        android:layout_alignBottom="@+id/phone_eT"
        android:layout_alignLeft="@+id/gender_tV"
        android:layout_alignStart="@+id/gender_tV" />

    <EditText
        android:layout_width="200dp"
        android:layout_height="30dp"
        android:layout_marginBottom="5dp"
        android:inputType="textPersonName"
        android:hint="@string/hint_required"
        android:textColorHint="@color/buttonFont"
        android:background="@drawable/border_style"
        android:ems="10"
        android:id="@+id/name_eT"
        android:textColor="@color/inputFont"
        android:layout_alignBottom="@+id/name_tV"
        android:layout_alignRight="@+id/userInfo"
        android:layout_alignEnd="@+id/userInfo" />

    <EditText
        android:layout_width="200dp"
        android:layout_height="30dp"
        android:inputType="number"
        android:ems="10"
        android:hint="@string/hint_required"
        android:textColorHint="@color/buttonFont"
        android:background="@drawable/border_style"
        android:id="@+id/age_eT"
        android:textColor="@color/inputFont"
        android:layout_below="@+id/name_tV"
        android:layout_alignRight="@+id/userInfo"
        android:layout_alignEnd="@+id/userInfo" />

    <EditText
        android:layout_width="200dp"
        android:layout_height="30dp"
        android:inputType="textEmailAddress"
        android:ems="10"
        android:id="@+id/email_eT"
        android:hint="@string/hint_required"
        android:textColorHint="@color/buttonFont"
        android:textColor="@color/inputFont"
        android:background="@drawable/border_style"
        android:layout_below="@+id/phone_eT"
        android:layout_alignLeft="@+id/age_eT"
        android:layout_alignStart="@+id/age_eT" />

    <EditText
        android:layout_width="200dp"
        android:layout_height="30dp"
        android:inputType="phone"
        android:ems="10"
        android:id="@+id/phone_eT"
        android:layout_marginBottom="5dp"
        android:textColor="@color/inputFont"
        android:hint="@string/hint_required"
        android:textColorHint="@color/buttonFont"
        android:background="@drawable/border_style"
        android:layout_below="@+id/gender_tV"
        android:layout_alignLeft="@+id/email_eT"
        android:layout_alignStart="@+id/email_eT" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/incident_info"
        android:id="@+id/incidentInfo"
        android:textColor="@color/colorFont"
        android:textStyle="bold"
        android:textSize="30sp"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />

    <Spinner
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/spinner"
        android:prompt="@array/incident_type"
        android:entries="@array/incident_type"
        android:layout_below="@+id/incidentInfo"
        android:layout_alignLeft="@+id/phone_eT"
        android:layout_alignStart="@+id/phone_eT"
        android:layout_alignRight="@+id/phone_eT"
        android:layout_alignEnd="@+id/phone_eT"
        android:spinnerMode="dropdown" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/incident_type_DD"
        android:textColor="@color/colorFont"
        android:id="@+id/incident_DD"
        android:layout_below="@+id/incidentInfo"
        android:layout_toLeftOf="@+id/spinner"
        android:layout_toStartOf="@+id/spinner" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/description"
        android:id="@+id/description_tV"
        android:textColor="@color/colorFont"
        android:layout_below="@+id/spinner"
        android:layout_alignLeft="@+id/phone_tV"
        android:layout_alignStart="@+id/phone_tV" />

    <EditText
        android:layout_width="300dp"
        android:layout_height="80dp"
        android:inputType="textMultiLine"
        android:ems="10"
        android:id="@+id/descr_eT"
        android:hint="@string/descr_hint"
        android:textColorHint="@color/buttonFont"
        android:gravity="top"
        android:background="@drawable/border_style"
        android:textColor="@color/inputFont"
        android:layout_below="@+id/description_tV"
        android:layout_alignLeft="@+id/description_tV"
        android:layout_alignStart="@+id/description_tV" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_margin="5dp"
        android:text="SUBMIT"
        android:onClick="submitData"
        android:textStyle="bold"
        android:textSize="35sp"
        android:id="@+id/subm_btn"
        android:background="@drawable/custom_btn"
        android:textColor="@color/buttonFont"
        android:layout_alignParentBottom="true"/>

    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_alignLeft="@+id/phone_eT"
        android:layout_alignStart="@+id/phone_eT"
        android:layout_below="@+id/age_eT"
        android:layout_alignRight="@+id/descr_eT"
        android:layout_alignEnd="@+id/descr_eT"
        android:layout_above="@+id/phone_eT"
        android:weightSum="1"
        android:id="@+id/radioGroup">

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="false"
            android:text="Male"
            android:id="@+id/male_rb"
            android:onClick="onCheckboxClicked"/>
        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Female"
            android:checked="false"
            android:id="@+id/female_rb"
            android:onClick="onCheckboxClicked"/>

    </RadioGroup>


</RelativeLayout>

我希望提交按钮保存并打开另一个名为submit_data.xml的活动：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    android:background="@color/buttonFont"
    android:padding="16dp"
    tools:context="com.example.khadijah.brucertv2.SubmitData">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Thank You for reporting to BruCERT."
        android:id="@+id/text1"
        android:layout_gravity="center_vertical"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="32dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="You will be entertained within 24hours. Your information will be treated strictly confidential."
        android:id="@+id/text2"
        android:layout_below="@+id/text1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="32dp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Please retain the ticket number for quick follow up and to ensure effective response."
        android:id="@+id/text3"
        android:layout_below="@+id/text2"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="32dp" />

</RelativeLayout>

以下是submitData.java：

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

/**
 * Created by Khadijah on 3/29/2016.
 */
public class SubmitData extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.submit_data);
    }
    public void submitData(View view) {
        Intent getResponse =  new Intent(this,SubmitData.class);

        final int result = 1;

        startActivityForResult(getResponse, result);
    }
}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.khadijah.brucertv2">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/brucertlogotrans"
        android:supportsRtl="true"
        android:theme="@android:style/Theme.Holo.Light">

        <activity
            android:name=".splash"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity
            android:name=".MainActivity"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="com.example.khadijah.brucertv2.MainActivity" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>-->
        </activity>

        <activity
            android:name=".FormActivity"
            android:label="Online Form">
            <intent-filter>

                <action android:name="com.example.khadijah.brucertv2.FormActivity" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

        <activity
            android:name=".SubmitData"
            android:label="Feedback">
            <intent-filter>
                <action android:name="com.example.khadijah.brucertv2.SubmitData" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

    </application>

</manifest>

Answer 1

添加此代码

startActivity(new Intent(FormActivity.this, SubmitData.class));

在 onResponse（字符串响应）方法中。并从SubmitData.java文件中删除submitData方法。同时从activity_form.xml文件中删除 android：onClick =＆＃34; submitData＆＃34; 。

Answer 2

我会使登录按钮调用AsyncTask，并在验证信息后的onPostExecute（）上，你可以将startActivity（）调用到你要打开的任何Activity。