We Keep Coding

Android multi window launcher sidebar

I want this drawerLayout(bellow photo) to always open like Samsung multiwindow sidebar.
Till now I am able to open this drawerLayout(sidebar) within the app. please give the instruction to be able to open this draweLayout(sidebar) from anywhere(I mean from any other app or even from home screen of a device).
Thanks in advance.
Here is my drayerLayout XML file:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout 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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start"
android:background="#color/cardview_light_background">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Swipe Right"
android:textSize="15dp"
android:textColor="#D50000"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Open App In\nMultiWIndow Mode"
android:textSize="30sp"
android:gravity="center"
android:textStyle="bold"
android:textColor="#color/black"/>
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp"
tools:context=".MainActivity2">
<ListView
android:id="#+id/listView"
android:layout_width="280dp"
android:layout_height="0dp"
android:layout_marginStart="10dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="10dp"
android:layout_marginBottom="10dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.navigation.NavigationView>
</androidx.drawerlayout.widget.DrawerLayout>

This cannot be achieved by making something global you to do some modification in every activity
you can create a new class that will have a method to initialize the navigation, move navigation view to separate xml file and include that file in every activity, and call initialization method in every activity
You can try this library https://github.com/mikepenz/MaterialDrawer to move most xml code to java so you won't have to add DrawerLayout in every activity but choice is your, it always better to skip using 3rd party libraries if you can
if you are using library than here's some example you can follow
Constant.java
private void setupNavigationDrawer() {
ProfileDrawerItem section = new ProfileDrawerItem()
.withSetSelected(false)
.withSetSelected(false)
.withEnabled(false);
PrimaryDrawerItem joyType0DrawerItem = new PrimaryDrawerItem().withName("Basic Gamepad").withTag(KEY_BASIC_GAMEPAD_1).withLevel(2);
PrimaryDrawerItem joyType1DrawerItem = new PrimaryDrawerItem().withName("Assault Horizon").withTag(KEY_ASSAULT_HORIZON).withLevel(2);
PrimaryDrawerItem joyType2DrawerItem = new PrimaryDrawerItem().withName("Awesomenauts").withTag(KEY_AWESOMENAUTS).withLevel(2);
PrimaryDrawerItem joyType3DrawerItem = new PrimaryDrawerItem().withName("BombSquad").withTag(KEY_BOMBSQUAD).withLevel(2);
PrimaryDrawerItem joyType4DrawerItem = new PrimaryDrawerItem().withName("Final Fantasy XIII").withTag(KEY_FINAL_FANTASY_XIII).withLevel(2);
SectionDrawerItem sectionDrawerItem = new SectionDrawerItem().withName("Joystick Type").withTextColorRes(R.color.colorAccent);
PrimaryDrawerItem deviceDrawerItem = new PrimaryDrawerItem().withName("Device Connection").withTag(KEY_DEVICE_CONNECTION).withIcon(GoogleMaterial.Icon.gmd_devices);
PrimaryDrawerItem settingsDrawerItem = new PrimaryDrawerItem().withName("Settings").withTag("settings").withIcon(GoogleMaterial.Icon.gmd_settings);
ndMenu = new DrawerBuilder()
.withActivity(this)
.withToolbar(tbMain)
.withCloseOnClick(true)
.withFireOnInitialOnClick(true)
.withSelectedItemByPosition(6)
.withDelayDrawerClickEvent(300)
.withDisplayBelowStatusBar(true)
.withTranslucentStatusBar(false)
.withOnDrawerItemClickListener(this)
.addDrawerItems(section, deviceDrawerItem, settingsDrawerItem, sectionDrawerItem, joyType0DrawerItem, joyType1DrawerItem, joyType2DrawerItem, joyType3DrawerItem, joyType4DrawerItem)
.build();
findViewById(R.id.nav_button).setOnClickListener(new
View.OnClickListener() {
#Override
public void onClick(View v) {
// Check these functions from library example to check drawer state and open close drawer
if(ndMenu.isDrawerOpen){
ndMenu.closeDrawer();
} else {
ndMenu.openDrawer();
}
});
}
MainActivity.xml
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true">
<include
layout="#layout/nav_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<LinearLayout>
nav_view.xml
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
orientation="horizontal">
<Image
id="#+id/nav_button"
android:layout_width="30dp"
android:layout_height="30dp"/>
<LinearLayout>

Adding multiple textviews to horizontal linear layout

Hi i am running a loop 10 times and each time i am creating a new TextView and I am adding that textview to my Linear layout which has orientation set to 'HORIZONTAL'. I want to show these texts in the form of paragraph where another sentence starts form where one sentence ends.
This is my layout:
<ScrollView 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_height="match_parent"
android:layout_width="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".ui.QuestionActivity"
android:padding="16dp"
android:orientation="vertical"
tools:showIn="#layout/activity_question">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/title"
android:layout_gravity="center"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="#android:color/black"
android:textStyle="bold|italic"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_marginTop="10dp"
android:id="#+id/base_layout"/>
</LinearLayout>
</ScrollView>
This is my java code:
for(int i=0; i<10; i++){
TextView textView = Utility.getTextView(this, i);
if(i == 5) {
textView.setText(sentences.get(i) + "\n" + "\n");
}
else {
textView.setText(sentences.get(i) + " ");
}
mLayout.addView(textView);
}
But the issue is only first textview is shown when orientation is set to 'horizontal' and if i set my orientation to 'vertical' i am able to see all textviews below one another.
Please help me on this.

You should need to wrap your base_layout LinearLayout under HorizontalScrollView.
Try below, should solve your issue. I have verified myself.
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="horizontal">
<LinearLayout
android:id="#+id/base_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:orientation="horizontal" />
</HorizontalScrollView>

Android - Checkbox not responding to clicks inside of FrameLayout

I'm working on a music player application, and I've created a FrameLayout which works as a "card," displaying information about each song (album art, title, artist, etc.) I'm trying to add checkboxes in this card, which I plan to customize to create upvote and downvote buttons. However, the checkboxes within the card do not respond to clicks. If I draw a checkbox in the main activity of the application (where I'm drawing the cards), it works fine.
Here is the onDraw() method of the card view ("MusicCardView"):
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
//Draw the voting controls
try {
CheckBox upvoteButton = new CheckBox(getContext());
upvoteButton.setX(20);
upvoteButton.setTop(-60);
upvoteButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// Is the button now checked?
Log.d("MainActivity", "upvote clicked");
}
});
CheckBox downvoteButton = new CheckBox(getContext());
downvoteButton.setX(20);
downvoteButton.setTop(-150);
downvoteButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// Is the button now checked?
Log.d("MainActivity", "downvote clicked");
}
});
upvoteButton.draw(canvas);
downvoteButton.draw(canvas);
} catch (Exception e) {
Log.e("MusicCardView", "exception", e );
}
}
The xml of the main activity ("PartyActivity"):
<?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:id="#+id/main_activity_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.musique.PartyActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/main_linear_view"
android:layout_marginBottom="56dp">
<com.musique.MusicCardView
android:layout_width="match_parent"
android:id="#+id/now_playing_view"
android:layout_height="80dp"
android:background="#ccc"
android:paddingBottom="5dp"
android:paddingLeft="5dp"
app:exampleColor="#000000"
app:songTitle="Money"
app:artist="Pink Floyd"
app:album="The Dark Side of the Moon"
app:exampleDimension="18sp"
app:exampleDrawable="#drawable/darkside"
app:exampleString="example" />
<Space
android:layout_width="match_parent"
android:layout_height="80dp"
android:id="#+id/controller_space"/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/query"
android:layout_gravity="center"
android:layout_marginTop="20dp" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/searchBtn"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:text="Search"
android:background="#5eca99"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tvData"/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:animateLayoutChanges="true"
android:id="#+id/main_scroll_view">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="#+id/scroll_child">
</LinearLayout>
</ScrollView>
</LinearLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/navigation" />
</android.support.constraint.ConstraintLayout>
And an example of a MusicCardView being the draw in PartyActivity
LayoutInflater vi = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
MusicCardView v = (MusicCardView) vi.inflate(R.layout.music_card_template, null);
v.setLayoutParams(new ViewGroup.LayoutParams(LayoutParams.MATCH_PARENT, 210));
LinearLayout linearLayout = findViewById(R.id.scroll_child);
v.setSongAttributes(song);
new RetrieveArtTask(v).execute(song);
Log.d("PartyActivity", "SongAttributes Set");
linearLayout.addView(v);
I've had a look at this question and this question, but had no luck with the solutions posted, and would greatly appreciate any advice you might have.

If you draw the controls directly to the canvas they are basically just bitmaps, you need to add them to the view hierarchy (activity/fragment layout) for them to receive touch events.
As a side note, it's a big no-no to instantiate things in onDraw, especially views.

Programatically set layout_width of EditText in Android

So I have an application that dynamically adds a table row every time the "Add Row" button is pressed. The code attached is the code that runs when "Add Row" is pressed. What I am trying to do is have 3 EditTexts next to each other on the same row. In order to do that, I need to change the Layout_Width of each EditText so the first EditText doesn't cut the other two off the screen. I can't seem to figure out a way to properly do this and was wondering if anyone would help me out. After I figure out how to do that, the next step is to adjust the layout_width according to the screen size but thats later down the road. It needs to be done programmatically because a user can theoretically have as many rows as they want to.
private OnClickListener btnListener = new OnClickListener()
{
public void onClick(View v)
{
tablerow = new TableRow(getActivity());
ed1 = new EditText(getActivity());
ed1.setInputType(InputType.TYPE_CLASS_TEXT);
ed2 = new EditText(getActivity());
ed2.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL);
ed3 = new EditText(getActivity());
ed3.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL);
tablerow.addView(ed1);
tablerow.addView(ed2);
tablerow.addView(ed3);
table1.addView(tablerow);
}
};

I believe what you are looking for is LayoutParams and its "weight" value.
Try:
TableRow.LayoutParams params = new TableRow.LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT,1.0f);
ed1 = new EditText(getActivity());
ed1.setInputType(InputType.TYPE_CLASS_TEXT);
ed1.setLayoutParams(params);
The third value (1.0f) in the LayoutParams constructor is a weight...all EditTexts in that TableRow should end up the same width.

You can try next approach, it is based on xml. You will be able to play around with layout at table_row.xml.
public class MainActivity extends ActionBarActivity implements View.OnClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.a_mn_button_add_row:
onClickButtonAddRow();
break;
}
}
private void onClickButtonAddRow() {
TableLayout tableLayout = (TableLayout) findViewById(R.id.a_mn_table);
tableLayout.addView(View.inflate(this, R.layout.table_row, null));
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/a_mn_button_add_row"
android:onClick="onClick"
android:text="Add row"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableLayout
android:id="#+id/a_mn_table"
android:stretchColumns="0,1,2"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</ScrollView>
</LinearLayout>
table_row.xml
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text" />
<EditText
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</TableRow>
table_row.xml for use case with 3-1-2 proportions.
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:layout_weight="3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:inputType="text" />
<EditText
android:layout_weight="1"
android:inputType="text"
android:layout_width="0dp"
android:layout_height="wrap_content" />
<EditText
android:layout_weight="2"
android:inputType="text"
android:layout_width="0dp"
android:layout_height="wrap_content" />
</TableRow>

Android - Problem with ViewFlipper

I am making a game that requires multiple views within an Activity, and i decided to use Viewflipper to do.
The thing is. I need to have 3 views in in the viewflipper, and the LAST view will transfer back to the first one.
My problem is that the buttons are acting weird, and they are either not going to the next, or skipping the third view. I tried to put vf.setDisplayedChild(R.Id.gamescreen1); at the last view but then the whole thing breaks down.
Thanks for all answers in advance, i have been stuck with this problem for DAYS! and yes, i know that i am a noob :(
[SOURCECODE]
public class GameActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_game);
final ViewFlipper vf = (ViewFlipper) findViewById(R.id.ViewFlipper01);
//SCREEN 1
Button btnSTART = (Button) findViewById(R.id.btnSTART);
//SCREEN 2
Button btnALT1 = (Button) findViewById(R.id.btnALT1);
Button btnALT2 = (Button) findViewById(R.id.btnALT1);
//SCREEN 3
Button btnALT3 = (Button) findViewById(R.id.btnALT1);
Button btnALT4 = (Button) findViewById(R.id.btnALT1);
//screen 1
btnSTART.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
//screen 2 // Either button will go to view 3
btnALT1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
btnALT2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
//screen 3 // Either button will go back to view 1
btnALT3.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
btnALT4.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
}
}
[XML]
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen1" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:layout_height="435dp" android:gravity="top">
<ListView android:layout_width="fill_parent" android:id="#+id/list1" android:layout_height="184dp" android:layout_weight="0.53"></ListView>
</LinearLayout>
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:gravity="bottom|center" android:layout_height="wrap_content">
<Button android:layout_height="wrap_content" android:id="#+id/btnSTART" android:layout_width="200dp" android:text="#string/btnstart"></Button>
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen2" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:weightSum="1" android:gravity="top" android:layout_height="326dp">
<ListView android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="#+id/list2"></ListView>
</LinearLayout>
<LinearLayout android:orientation="vertical" android:gravity="bottom|center" android:layout_width="match_parent" android:layout_height="match_parent">
<Button android:text="alt1" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT1"></Button>
<Button android:text="alt2" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT2"></Button>
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen3" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:weightSum="1" android:gravity="top" android:layout_height="326dp">
</LinearLayout>
<LinearLayout android:orientation="vertical" android:gravity="bottom|center" android:layout_width="match_parent" android:layout_height="match_parent">
<Button android:text="alt3" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT3"></Button>
<Button android:text="alt4" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT4"></Button>
</LinearLayout>
</LinearLayout>

try this
flipper.setDisplayedChild(1);
.
.to
.
flipper.setDisplayedChild(3);
if(flipper.getCurrentView() == 3)
{
flipper.setDisplayedChild(1);
}

setDisplayChild takes an integer parameter that is the zero based index of the child to display NOT the id of the child to display. A bit confusing I know.