[Android applocation] Wallpaper

- Download many wallpaper full HD:
- include :
 + Sony
 + Samsung
 + iPhone
 + HTC
 + etc...
get notification when have new wallpaper
Enjoy this application

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Android build apk file with command line

Google Play

build apk
- gradlew assembleDebug
build apk when running device
    for debug
    - gradlew installDebug
    for release
    - gradlew installRelease


buildTypes {
        release {
            minifyEnabled false
            signingConfig signingConfigs.release
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            buildConfigField "boolean", "ENABLE_DEBUG", "false"
        }
        debug {
            buildConfigField "boolean", "ENABLE_DEBUG", "true"
        }
    }

[Android application] Kết quả xổ số

Kết quả xổ số:
- Các tỉnh miền trung : Bình Định, Phú Yên,.....
- Các tỉnh miền nam: Sóc Trăng, TP HCM,...
- Vietlott:
+ Mega 6/45
+ Max 4D
+ Power 6/55
- Ứng dụng nhẹ, mượt

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[Android Application]Works Manager

- Simple application to manager works for day
- Notification when set time
- Use for Offline
- Share event
- All in one screen
- Enjoy this application
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[Android application] Count Day

Count Day
Enjoy this app
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[Android] Retrofit library

compile 'com.google.code.gson:gson:2.6.2'
compile 'com.squareup.retrofit2:retrofit:2.0.2'
compile 'com.squareup.retrofit2:converter-gson:2.0.2'



public class ApiClient {
    public static final String BASE_URL = "your URL";
    private static Retrofit retrofit = null;

    public static Retrofit getClient() {
        if (retrofit == null) {
            retrofit = new Retrofit.Builder()
                    .baseUrl(BASE_URL)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
        }
        return retrofit;
    }
}

public interface ApiInterface {
    @GET("Retrofit.php")
    Call<List<Message>> getInbox();
}

public class Message {
    public int id;
    public String msg;
    public String url;

    public Message(int id, String msg, String url) {
        this.id = id;
        this.msg = msg;
        this.url = url;
    }
}

public class MainActivity extends AppCompatActivity {
    String TAG = "MainActivity";
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ApiInterface apiService = ApiClient.getClient().create(ApiInterface.class);
        Call<List<Message>> call = apiService.getInbox();
        call.enqueue(new Callback<List<Message>>() {
            @Override
            public void onResponse(Call<List<Message>> call, Response<List<Message>> response) {
                // TODO - avoid looping
                List<Message> messageList = response.body();
                for (Message message : messageList) {
                    Log.d(TAG, new Gson().toJson(message));
                }
            }
            @Override
            public void onFailure(Call<List<Message>> call, Throwable t) {
                Toast.makeText(getApplicationContext(), "Unable to fetch json: " + t.getMessage(), Toast.LENGTH_LONG).show();
            }
        });
    }
}

    }
}

[Android application] QR & Barcode Scanner

The fast QR & Barcode scanner
Enjoy this app
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[Android Game]Shoot Asteroids

- Easy game move player with sensor to shoot Asteroids
- Require: device support GRAVITY SENSOR, ROTATION VECTOR SENSOR
- Enjoy this game

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[Android application] Object with Kotlin android

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main) 

 var user = User("Kotlin", "Kotlin@yahoo.com") 

 var msg: String = "name:" + user.name + "\n" + user.email 

 var tv = findViewById(R.id.tv) as TextView 

 tv.text = msg

    }

    inner class User(var name: String, var email: String)
}

[Android application] Compare code between Kotlin and Java

class MainActivity : AppCompatActivity() {
    // kotlin code 

 var a: Int = 10 

 var b: Int = 5 

 override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main) 

 var btn_hello = findViewById(R.id.btn_hello) as Button 

 var c = a + b 

 var msg: String = "Kotlin" 

 btn_hello.setOnClickListener { 

 view -> 

 Toast.makeText(applicationContext, msg, Toast.LENGTH_SHORT).show() 

        } 

    }
}

[Android] Install Kotlin language for Android Studio

class MainActivity : AppCompatActivity() {
 private var TAG: String = "MainActivity" 

 private var a: Int = 0 

 private var b: Int = 0
 

 override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState) 

 a = 10 

 b = 25 

 Log.d(TAG, "result:" + (a + b)) 

 // result:35 

  }
}

[Android Application] Money Manager

- easy manager your money with calendar
- simple add event 
- statistic money pay for day
- statistic money pay for month
- share event
- use for offline
- all in one screen
- enjoy this application
MoneyManager
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[Android application] LockScreen

simple widget lockscreen
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Bottom Sheet

build.gragle file 

compile 'com.android.support:appcompat-v7:25.2.0' 

compile 'com.android.support:design:25.2.0'

MainActivity

public class MainActivity extends AppCompatActivity {
    String TAG = "MainActivity";
    @Override 

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); 

 setContentView(R.layout.activity_main); 

 View bottomSheet = findViewById(R.id.design_bottom_sheet); 

 final BottomSheetBehavior behavior = BottomSheetBehavior.from(bottomSheet); 

 // listen view change 

 behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
            @Override 

 public void onStateChanged(@NonNull View bottomSheet, int newState) {
 switch (newState) {
 case BottomSheetBehavior.STATE_DRAGGING:
 Log.d(TAG, "BottomSheetBehavior.STATE_DRAGGING"); 

 break; 

 case BottomSheetBehavior.STATE_SETTLING:

 Log.d(TAG, "BottomSheetBehavior.STATE_SETTLING"); 

 break; 

 case BottomSheetBehavior.STATE_EXPANDED:

 Log.d(TAG, "BottomSheetBehavior.STATE_EXPANDED"); 

 break; 

 case BottomSheetBehavior.STATE_COLLAPSED:

 Log.d(TAG, "BottomSheetBehavior.STATE_COLLAPSED"); 

 break; 

 case BottomSheetBehavior.STATE_HIDDEN:

 Log.d(TAG, "BottomSheetBehavior.STATE_HIDDEN"); 

 break;                }
            }

            @Override 

 public void onSlide(@NonNull View bottomSheet, float slideOffset) {
                Log.d(TAG, "slideOffset: " + slideOffset); 

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

 button.setOnClickListener(new View.OnClickListener() {
            @Override 

 public void onClick(View view) {
                if (behavior.getState() == BottomSheetBehavior.STATE_COLLAPSED) {
                    behavior.setState(BottomSheetBehavior.STATE_EXPANDED); 

                 } else {
                    behavior.setState(BottomSheetBehavior.STATE_COLLAPSED); 

                 }
                      }
             }); 

          }
}

 activity_main

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

<android.support.design.widget.CoordinatorLayout 

 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.support.v4.widget.NestedScrollView 

 android:layout_width="match_parent" 

 android:layout_height="match_parent" 

 app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <RelativeLayout 

 android:layout_width="match_parent" 

 android:layout_height="match_parent" 

 android:paddingBottom="@dimen/activity_vertical_margin" 

 android:paddingLeft="@dimen/activity_horizontal_margin" 

 android:paddingRight="@dimen/activity_horizontal_margin" 

 android:paddingTop="@dimen/activity_vertical_margin">
            <ImageView 

 android:id="@+id/image" 

 android:layout_width="wrap_content" 

 android:layout_height="wrap_content" 

 android:layout_centerHorizontal="true" 

 android:src="@mipmap/ic_launcher"/>
            <Button 

 android:id="@+id/button" 

 android:layout_width="wrap_content" 

 android:layout_height="wrap_content" 

 android:layout_below="@+id/image" 

 android:layout_centerHorizontal="true" 

 android:text="Show Bottom Sheet"/> 

 </RelativeLayout> 

 </android.support.v4.widget.NestedScrollView>
    <RelativeLayout 

 android:id="@+id/design_bottom_sheet" 

 android:layout_width="match_parent" 

 android:layout_height="match_parent" 

 android:background="@color/colorAccent" 

 android:paddingBottom="@dimen/activity_vertical_margin" 

 android:paddingLeft="@dimen/activity_horizontal_margin" 

 android:paddingRight="@dimen/activity_horizontal_margin" 

 android:paddingTop="@dimen/activity_vertical_margin" 

 app:behavior_hideable="true" 

 app:behavior_peekHeight="50dp" 

 app:elevation="4dp" 

 app:layout_behavior="@string/bottom_sheet_behavior">
        <TextView 

 android:id="@+id/bottomsheet_text" 

 android:layout_width="wrap_content" 

 android:layout_height="match_parent" 

 android:text="Introducing Bottom Sheets" 

 android:textColor="#FFFFFF"/>
    </RelativeLayout>

</android.support.design.widget.CoordinatorLayout>

[Android Application] Draw Doraemon

Draw Doraemon with sample picture 
Collections of drawing/sketches of anime cartoon
Doraemon Cartoon Characters 
Kids beginner friendly drawing
save and share picture after draw finish
support android >= 6.0 
enjoy this app
Download app from Google Play

How to see running background services in android 6(marshmallow) and more?

How to see running background services in android 6(marshmallow) and more?

[Android App]: Transfer Phone Number

feature:
* if you want change the prefix of all list contacts in your device?
  - Ex:
  - transfer list contacts start with +84 like: +8411111, +8422222, +8433333, etc... to 03 like: 0311111, 0322222, 0333333, etc...
* If you have a new Smartphone, you want delete all contacts in your old device when you sales or give a someone, you can not handmade to  delete every contact?
  - use app to delete all contacts in your device is easy and fast with one touch
* Support for update many Type Contacts: MOBILE, HOME, WORK, etc...
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[App] Football Information

Download app from Google Play
The fast to update football information

 your club include league:
 - Premier league
- La liga
- Bundesliga
- Serie A
- League One

function:
- Chart
- Schedule
- Result
Enjoy this application

[App] Round Screen

Draw image with many style at corner your device
It's beautifyfull
Enjoy this application
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[Game] Push Square

this is a intellectual game
You have think how to move square to center
Play with me and we are winner


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