javascript - 使用 StringRequest 通过 GDScript POST 到 Google Sheet。 GDScript 可以工作，但应用程序停止运行

Question

我正在尝试根据以下教程构建一个具有简单表单提交系统的 Android 应用程序； https://www.crazycodersclub.com/android/how-to-use-google-sheet-as-database-for-android-app-1-insert-operation/

我已成功创建该应用程序，并且它可以在 Android VM 中正常启动。但是，当我填写提交字段并按“提交”按钮时，它只是显示进度对话框，而没有实际将 POST 请求发送到 Google 脚本页面。我已经使用 PostMan 检查了脚本的功能，并且没有任何错误。我该如何解决这个问题？我只想将其提交到 Google 表格。

我是 Android 开发的新手，所以请耐心等待。

这是应用程序脚本；

AndroidManifest:

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

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name="com.example.gsheetitem.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="com.example.gsheetitem.add_item"/>
    </application>

</manifest>

AddItem.Java

    package com.example.gsheetitem;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

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

import java.util.HashMap;
import java.util.Map;

public class add_item extends AppCompatActivity implements View.OnClickListener {


    EditText editTextItemName,editTextBrand;
    Button buttonAddItem;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.add_item);

        editTextItemName = (EditText)findViewById(R.id.et_item_name);
        editTextBrand = (EditText)findViewById(R.id.et_brand);

        buttonAddItem = (Button)findViewById(R.id.btn_add_item);
        buttonAddItem.setOnClickListener(this);


    }

    //This is the part where data is transafeered from Your Android phone to Sheet by using HTTP Rest API calls

    private void   addItemToSheet() {

        final ProgressDialog loading = ProgressDialog.show(this,"Adding Item","Please wait");
        final String name = editTextItemName.getText().toString().trim();
        final String brand = editTextBrand.getText().toString().trim();




        StringRequest stringRequest = new StringRequest(Request.Method.POST, "***LINK_TO_GOOGLE_SHEET_GOES_HERE***",
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {

                        loading.dismiss();
                        Toast.makeText(add_item.this,response,Toast.LENGTH_LONG).show();
                        Intent intent = new Intent(getApplicationContext(), com.example.gsheetitem.MainActivity.class);
                        startActivity(intent);

                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {

                    }
                }
        ) {
            @Override
            protected Map<String, String> getParams() {
                Map<String, String> parmas = new HashMap<>();

                //here we pass params
                parmas.put("action","addItem");
                parmas.put("itemName",name);
                parmas.put("brand",brand);

                return parmas;
            }
        };

        int socketTimeOut = 50000;// u can change this .. here it is 50 seconds

        RetryPolicy retryPolicy = new DefaultRetryPolicy(socketTimeOut, 0, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
        stringRequest.setRetryPolicy(retryPolicy);

        RequestQueue queue = Volley.newRequestQueue(this);

        queue.add(stringRequest);


    }




    @Override
    public void onClick(View v) {

        if(v==buttonAddItem){
            addItemToSheet();

            //Define what to do when button is clicked
        }
    }
}

MainActivity.java

package com.example.gsheetitem;

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

public class MainActivity extends Activity implements View.OnClickListener {

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

        buttonAddItem = findViewById(R.id.btn_add_item);
        buttonAddItem.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {

        if(v==buttonAddItem){

            Intent intent = new Intent(getApplicationContext(), add_item.class);
            startActivity(intent);
        }

    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/linearLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <Button
        android:id="@+id/btn_add_item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

add_Item.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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/linearLayout2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Item Name"
        app:layout_constraintBottom_toTopOf="@+id/et_item_name"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="120dp"
        android:text="Brand"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/et_item_name" />

    <EditText
        android:id="@+id/et_item_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/et_brand"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:ems="10"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2" />

    <Button
        android:id="@+id/btn_add_item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Submit"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/et_brand" />
</androidx.constraintlayout.widget.ConstraintLayout>

构建.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com.example.gsheetitem"
        minSdkVersion 28
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation 'com.android.volley:volley:1.1.0'
    implementation "com.android.support:support-core-utils:28.1.1"
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'}

应用程序看起来像这样；

Landing page

Submission page

Progressdialog that never ends

Answer 1

这也发生在我身上，但就我而言，有一个简单的问题:我的模拟器无法从我的笔记本电脑访问互联网连接。

从笔记本电脑获取到模拟器的互联网连接: https://medium.com/@cafonsomota/android-emulator-when-theres-no-connection-to-the-internet-129e8b63b7ce

您应该在具有互联网连接的真实 Android 设备上尝试它，方法是构建您的应用程序的 apk 或在 Debug模式下将您的手机连接到笔记本电脑，然后您将能够在“运行”菜单中看到已连接的手机选定设备中的 android-studio。

构建 apk 进行测试 https://medium.com/@ashutosh.vyas/create-unsigned-apk-in-android-325fef3b0d0a