การรับส่งข้อมูลกับเซิร์ฟเวอร์ในแบบ String

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.phaisarn.myapplication"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:design:26.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    implementation 'com.koushikdutta.ion:ion:2.+'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.phaisarn.myapplication"

minSdkVersion 21

targetSdkVersion 26

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.1.3'

implementation 'com.android.support:design:26.1.0'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'com.android.support.test:runner:1.0.2'

androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

implementation 'com.koushikdutta.ion:ion:2.+'

}

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<GridLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="16dp"
    android:columnCount="2"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity"
    tools:showIn="@layout/activity_main">

    <TextView
        android:text="Login"
        android:textSize="16sp" />

    <EditText
        android:id="@+id/login"
        android:layout_columnWeight="1"
        android:layout_gravity="fill_horizontal"
        android:layout_marginLeft="10dp"
        android:textSize="16sp" />

    <TextView
        android:text="Password"
        android:textSize="16sp" />

    <EditText
        android:id="@+id/password"
        android:layout_columnWeight="1"
        android:layout_gravity="fill_horizontal"
        android:layout_marginLeft="10dp"
        android:inputType="textPassword" />

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

    <Button
        android:id="@+id/button"
        android:layout_gravity="center_horizontal"
        android:text="เข้าสู่ระบบ"
        android:textSize="16sp" />

</GridLayout>

<?xml version="1.0" encoding="utf-8"?>

<GridLayout 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:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_margin="16dp"

android:columnCount="2"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:context=".MainActivity"

tools:showIn="@layout/activity_main">

<TextView

android:text="Login"

android:textSize="16sp" />

<EditText

android:id="@+id/login"

android:layout_columnWeight="1"

android:layout_gravity="fill_horizontal"

android:layout_marginLeft="10dp"

android:textSize="16sp" />

<TextView

android:text="Password"

android:textSize="16sp" />

<EditText

android:id="@+id/password"

android:layout_columnWeight="1"

android:layout_gravity="fill_horizontal"

android:layout_marginLeft="10dp"

android:inputType="textPassword" />

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

<Button

android:id="@+id/button"

android:layout_gravity="center_horizontal"

android:text="เข้าสู่ระบบ"

android:textSize="16sp" />

</GridLayout>

MainActivity.java

package com.phaisarn.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.app.ProgressDialog;
import android.content.Intent;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.koushikdutta.async.future.FutureCallback;
import com.koushikdutta.ion.Ion;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

        final EditText editLogin = (EditText) findViewById(R.id.login);
        final EditText editPass = (EditText) findViewById(R.id.password);

        final Button button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final ProgressDialog dialog = new ProgressDialog(MainActivity.this);
                dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                dialog.setMessage("Sending request...");
                dialog.setIndeterminate(true);
                dialog.show();
                Ion.with(MainActivity.this)
                        .load("http://10.0.2.2/pro-android/http-string.php")    //http://www.developerthai.com/pro-android/http-string.php
                        .setBodyParameter("login", editLogin.getText().toString())
                        .setBodyParameter("password", editPass.getText().toString())
                        .asString()
                        .setCallback(new FutureCallback<String>() {
                            @Override
                            public void onCompleted(Exception e, String result) {
                                dialog.dismiss();
                                if (result.endsWith("#1")) {
                                    startActivity(new Intent(MainActivity.this, Main2Activity.class));
                                } else {
                                    Toast.makeText(getBaseContext(), result, Toast.LENGTH_LONG).show();
                                }
                            }
                        });
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @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);
    }
}

package com.phaisarn.myapplication;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.design.widget.Snackbar;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.View;

import android.view.Menu;

import android.view.MenuItem;

import android.app.ProgressDialog;

import android.content.Intent;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Toast;

import com.koushikdutta.async.future.FutureCallback;

import com.koushikdutta.ion.Ion;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

.setAction("Action", null).show();

}

});

final EditText editLogin = (EditText) findViewById(R.id.login);

final EditText editPass = (EditText) findViewById(R.id.password);

final Button button = (Button) findViewById(R.id.button);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

final ProgressDialog dialog = new ProgressDialog(MainActivity.this);

dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);

dialog.setMessage("Sending request...");

dialog.setIndeterminate(true);

dialog.show();

Ion.with(MainActivity.this)

.load("http://10.0.2.2/pro-android/http-string.php") //http://www.developerthai.com/pro-android/http-string.php

.setBodyParameter("login", editLogin.getText().toString())

.setBodyParameter("password", editPass.getText().toString())

.asString()

.setCallback(new FutureCallback<String>() {

@Override

public void onCompleted(Exception e, String result) {

dialog.dismiss();

if (result.endsWith("#1")) {

startActivity(new Intent(MainActivity.this, Main2Activity.class));

} else {

Toast.makeText(getBaseContext(), result, Toast.LENGTH_LONG).show();

}

});

}

});

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.menu_main, menu);

return true;

}

@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);

}

บรรทัดที่ 51 : เรียกไปที่ http://10.0.2.2/pro-android/http-string.php

content_main2.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".Main2Activity"
    tools:showIn="@layout/activity_main2">

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.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:layout_width="match_parent"

android:layout_height="match_parent"

app:layout_behavior="@string/appbar_scrolling_view_behavior"

tools:context=".Main2Activity"

tools:showIn="@layout/activity_main2">

</android.support.constraint.ConstraintLayout>

Main2Activity.java

package com.phaisarn.myapplication;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }

}

package com.phaisarn.myapplication;

import android.os.Bundle;

import android.support.design.widget.FloatingActionButton;

import android.support.design.widget.Snackbar;

import android.support.v7.app.AppCompatActivity;

import android.support.v7.widget.Toolbar;

import android.view.View;

public class Main2Activity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main2);

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

setSupportActionBar(toolbar);

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

.setAction("Action", null).show();

}

});

}

Phaisarn Sutheebanjard

blog.phaisarn.com

การรับส่งข้อมูลกับเซิร์ฟเวอร์ในแบบ String