full screen Videoview Android Studio

here is your code for full screen

DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics);
             android.widget.LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) videoView.getLayoutParams();
             params.width =  metrics.widthPixels;
             params.height = metrics.heightPixels;
             params.leftMargin = 0;
             videoView.setLayoutParams(params);

here is your code for back original size. which your set

DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics);
             android.widget.LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) videoView.getLayoutParams();
             params.width =  (int) (300*metrics.density);
             params.height = (int) (250*metrics.density);
             params.leftMargin = 30;
             videoView.setLayoutParams(params);

you can use methode fi else or for or boolean
whichever you like..

enjoy for code

@FormUrlEncoded

@FormUrlEncoded
fungsinya adalah untuk import code sehingga mudah dibaca mesin. seperti ada perubahan 

pada string yang spasi nya menjadi %20 dan pemisahnya seperti enter dirubah hingga codenya hanya satu barisan

cara Fork pada gitlab

status awal kita adalah bercontribusi dengan teman yang mengerjakan sebuah project bersama-sama.
nah nantinya agar sebuah project yang kita kerjakan tidak terjadi konflik dengan teman yang lain maka ada sebuah pilihan yaitu forking project dengan fork kita mengerjakan sebuah bagian kita sendiri didalam sebuah project menambahkan code pada activity tertentu. menambahkan activity baru dan lain lain.
salinan repositori asli yang dapat Anda masukkan ke dalam ruang nama lain tempat Anda dapat melakukan percobaan dan menerapkan perubahan yang nantinya dapat Anda putuskan jika menerbitkan atau tidak, tanpa mempengaruhi proyek asli Anda.
lihat selengkapnya di gitlab fork


terminal dijalankan di dalam folder project android studio jalankan perintah git remote -v
origin https://gitlab.com/username/project.git (fetch)
origin https://gitlab.com/username/project.git (push)

remote -v ditujukan untuk melihat remote originnya yang mengarah ke file hasil fork
,

kali ini kita tambahkan upsteam untuk pull pada project

git remote add upstream https://gitlab.com/username/project.git

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git remote -vorigin https://gitlab.com/walageri/bla.git (fetch)

origin https://gitlab.com/walageri/bla.git (push)

upstream https://gitlab.com/myfriends/bla.git (fetch)

upstream https://gitlab.com/myfriends/bla.git (push)

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

* master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch gery

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git remote -vorigin https://gitlab.com/walageri/bla.git (fetch)

origin https://gitlab.com/walageri/bla.git (push)

upstream https://gitlab.com/myfriends/bla.git (fetch)

upstream https://gitlab.com/myfriends/bla.git (push)

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

  gery

* master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch chekout gery

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

  chekout

  gery

* master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git chekout gery

git: 'chekout' is not a git command. See 'git --help'.

Did you mean this?

 checkout

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git checkout gery

Switched to branch 'gery'

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch  chekout

* gery

  master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

  chekout

* gery

  master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git status

On branch gery

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git checkout -- <file>..." to discard changes in working directory)

 modified:   .idea/misc.xml

 modified:   app/src/main/java/com/myfriends/bla/LoginActivity.java

 modified:   app/src/main/java/com/myfriends/bla/MainActivity.java

 modified:   app/src/main/res/layout/activity_login.xml

 modified:   app/src/main/res/values/dimens.xml

 modified:   app/src/main/res/values/strings.xml

Untracked files:

  (use "git add <file>..." to include in what will be committed)

 app/src/main/java/com/myfriends/bla/SosMed.java

 app/src/main/res/drawable/edtbg.xml

 app/src/main/res/layout/sos_med.xml

no changes added to commit (use "git add" and/or "git commit -a")

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add  app/src/main/java/com/myfriends/bla/LoginActivity.java

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/java/com/myfriends/bla/MainActivity.java

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/res/layout/activity_login.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/res/values/dimens.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add  app/src/main/res/values/strings.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git status

On branch gery

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

 modified:   app/src/main/java/com/myfriends/bla/LoginActivity.java

 modified:   app/src/main/java/com/myfriends/bla/MainActivity.java

 modified:   app/src/main/res/layout/activity_login.xml

 modified:   app/src/main/res/values/dimens.xml

 modified:   app/src/main/res/values/strings.xml

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git checkout -- <file>..." to discard changes in working directory)

 modified:   .idea/misc.xml

Untracked files:

  (use "git add <file>..." to include in what will be committed)

 app/src/main/java/com/myfriends/bla/SosMed.java

 app/src/main/res/drawable/edtbg.xml

 app/src/main/res/layout/sos_med.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/java/com/myfriends/bla/SosMed.java

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/res/drawable/edtbg.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git add app/src/main/res/layout/sos_med.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git status

On branch gery

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

 modified:   app/src/main/java/com/myfriends/bla/LoginActivity.java

 modified:   app/src/main/java/com/myfriends/bla/MainActivity.java

 new file:   app/src/main/java/com/myfriends/bla/SosMed.java

 new file:   app/src/main/res/drawable/edtbg.xml

 modified:   app/src/main/res/layout/activity_login.xml

 new file:   app/src/main/res/layout/sos_med.xml

 modified:   app/src/main/res/values/dimens.xml

 modified:   app/src/main/res/values/strings.xml

Changes not staged for commit:

  (use "git add <file>..." to update what will be committed)

  (use "git checkout -- <file>..." to discard changes in working directory)

 modified:   .idea/misc.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git checkout -- .idea/misc.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git statusOn branch gery

Changes to be committed:

  (use "git reset HEAD <file>..." to unstage)

 modified:   app/src/main/java/com/myfriends/bla/LoginActivity.java

 modified:   app/src/main/java/com/myfriends/bla/MainActivity.java

 new file:   app/src/main/java/com/myfriends/bla/SosMed.java

 new file:   app/src/main/res/drawable/edtbg.xml

 modified:   app/src/main/res/layout/activity_login.xml

 new file:   app/src/main/res/layout/sos_med.xml

 modified:   app/src/main/res/values/dimens.xml

 modified:   app/src/main/res/values/strings.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git commit -m "edit login dan sosmed "

[gery 40f03f3] edit login dan sosmed

 8 files changed, 489 insertions(+), 18 deletions(-)

 create mode 100644 app/src/main/java/com/myfriends/bla/SosMed.java

 create mode 100644 app/src/main/res/drawable/edtbg.xml

 create mode 100644 app/src/main/res/layout/sos_med.xml

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git status

On branch gery

nothing to commit, working directory clean

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git remote -v

origin https://gitlab.com/walageri/bla.git (fetch)

origin https://gitlab.com/walageri/bla.git (push)

upstream https://gitlab.com/myfriends/bla.git (fetch)

upstream https://gitlab.com/myfriends/bla.git (push)

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

  chekout

* gery

  master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git push origin gery

Username for 'https://gitlab.com': walageri

Password for 'https://walageri@gitlab.com':

Counting objects: 21, done.

Delta compression using up to 4 threads.

Compressing objects: 100% (18/18), done.

Writing objects: 100% (21/21), 4.05 KiB | 0 bytes/s, done.

Total 21 (delta 12), reused 0 (delta 0)

remote:

remote: To create a merge request for gery, visit:

remote:   https://gitlab.com/walageri/bla/merge_requests/new?merge_request%5Bsource_branch%5D=gery

remote:

To https://gitlab.com/walageri/bla.git

 * [new branch]      gery -> gery

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch

  chekout

* gery

  master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git checkout master

Switched to branch 'master'

Your branch is up-to-date with 'origin/master'.

gery@gery-Satellite-A~/AndroidStudioProjects/bla $ git branch  chekout

  gery

* master

gery@gery-Satellite-A~/AndroidStudioProjects/bla $

set your back up button on your aplikation to back to return to the previous activity

you can use my code.
first code you can use in your manifest
add this code on your atribute activity:

<activity

    android:name=".Activity2"

    android:theme="@style/AppTheme"

    android:label="@string/tes">

    <meta-data

        android:name="android.support.PARENT_ACTIVITY"

        android:value=".MainActivity" />

</activity>

second code you can use this code in your activity

@Overridepublic boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == android.R.id.home) {
        onBackPressed();

        }
return super.onOptionsItemSelected(item);
}

have fun to coding

Doeble Tab to Close Your Apps

you can copy this code to your project

boolean doubleBackToExitPressedOnce = false;@Overridepublic void onBackPressed() {
    if (doubleBackToExitPressedOnce) {
        super.onBackPressed();        return;    }

    this.doubleBackToExitPressedOnce = true;    Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
    new Handler().postDelayed(new Runnable() {

        @Override        public void run() {
            doubleBackToExitPressedOnce=false;        }
    }, 2000);}

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install adb for mirror screen your android for linux mint

install adb for mirror screen your android

-sudo apt-get install android-tools-adb
-sudo apt-get install qt4-qmake libqt4-dev libqtcore4 libqtgui4

-git clone https://github.com/yangh/sevensquare.git

if you dont have git. you can install git firts with(sudo apt-get install git) and then

open your cd folder with name (sevensquare) and type (make) enter
-sudo make install

now seven square is installed
you can open with your terminal with type (seven-square)

the last connect your device with USB Cable. 

hope this helps you