ImageButton onclick - java

When I click restart button, it creates blue coloured thing. How to set that blue coloured thing to transparent? Please help me.

Set your image in android:src and set the background as null to remove the visual feedback:
android:background="#null"
Please note that this will remove the visual feedback for button press and is not recommended. Use a selector to set different images depending on the button state for better UX

If you are using "Button", try using "selector" as background(android:background="#drawable/button_selector").
A sample selector -> button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button_bg_selected" android:state_selected="true"></item>
<item android:drawable="#drawable/button_bg_pressed" android:state_pressed="true"></item>
<item android:drawable="#drawable/button_bg_normal"></item>
</selector>

use ImageView Instead of ImageButton
<ImageView
android:layout_width="120dp"
android:layout_height="130dp"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginEnd="20dp"
android:layout_marginRight="20dp"
android:background="?android:selectableItemBackground" android:id="#+id/ibtn_restart" />
and in Java file
ImageView ibtn_restart=(ImageView)findViewById(R.id.ibtn_restart);

Related

How to change iconTint of a specific item in BottomNavigationView

I am trying to change the iconTint of the favorites menuItem in the bottomNavigationView.
To achieve so, I've tried the following:
Creating a selector with colors
Creating a selector with drawables
Programatically setting icon drawable
programatically setting iconItemTint of bottomNavigationView to null
Using colored icon drawables, instead of iconItemTint
Setting the icon of favorites to the drawable selector
Setting the background of favorites to the desired color
Setting iconTint of favorites to desired color
None of the above solutions worked for me. Then I figured that it might be because I'm using com.google.android.material.bottomnavigation.BottomNavigationView instead of android.support.design.widget.BottomNavigationView
My bottomNavigationView
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_navigation"
app:labelVisibilityMode="labeled"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
app:itemTextColor="#232323"
app:menu="#menu/bottom_nav_menu" />
My bottom_nav_menu
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
...
<item
android:title="Favorites"
android:id="#+id/btn_favorites"
android:enabled="true"
android:background="#color/red_heart"
android:icon="#drawable/ic_favorite_red"
app:showAsAction="ifRoom" />
...
Here is a screenshot of my app:
The selected color is blue for all menuItems. I want the favorites to have the color #ff4444 (pale red) when selected.
I wasted a lot of time searching the correct answer to "How to change color of one specific icon of Bottom Navigation View" and I resolved this by myself. Here is the example:
val view = viewBinding.bottomNavigationView.menuView as NavigationBarMenuView
val itemToChange = view.findViewById<NavigationBarItemView>(R.id."item_to_change_id")
itemToChange.setIconTintList(
ColorStateList.valueOf(
ContextCompat.getColor(requireContext,R.color."color you need")
)
)
I didn't try this with android.support.design.widget.BottomNavigationView, but with com.google.android.material.bottomnavigation.BottomNavigationView it works correctly :)
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_gravity="bottom"
android:layout_marginBottom="0dp"
app:itemTextColor="#color/bootom_text_color"
app:itemIconTint="#color/bootom_text_color"
android:background="#color/bottom_color"
app:elevation="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:menu="#menu/bottom_navigation" />
create colour.xml in values
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="#FFFF00" />
<item android:color="#color/white" /> </selector>

Clicking an ImageButton to change to a different image everytime

I have an ImageButton, which as false appears as a gray image, while as true appears as a green image. If I use state_pressed="true" and state_pressed="false" the function DOES work, however I need to hold the left-click button for the button to change to true.
P.S: I do believe that I am using the wrong state but I have tried the others but didn't work.
My question is: How do I keep the image as true with just clicking once on the ImageButton?
Code:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/green_clock" android:state_selected= "true"> </item>
<item android:drawable="#drawable/grey_clock" android:state_selected="false"> </item>
</selector>
Java File:
public void onClickClock(View v)
{
ImageButton clockBtn = (ImageButton)findViewById(R.id.Clock);
clockBtn.setImageResource(R.drawable.clock);
}
activity.xml:
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/Clock"
android:src="#drawable/clock"
android:background="#android:color/transparent"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginTop="73dp"
android:onClick="onClickClock" />
Thanks!
Add setSelected()
public void onClickClock(View v) {
ImageButton clockBtn = (ImageButton)findViewById(R.id.Clock);
clockBtn.setSelected(!clockBtn.isSelected());
}

How do I mimick the Lollipop (Material Design) button animation?

There's a style called Widget.Material.Button that has an animation effect that I really like (it makes a "splash" around your click), and I want to be able to reuse it in my code.
I'm trying to make it have a transparent background color, since it is gray by default which does not look good when applied to my ViewGroup objects.
Is there an easy way to keep the animation, but get rid of the background color?
I already tried setting the property android:background="#android:color/transparent", but that causes the animation to completely stop working.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
style="#android:style/Widget.Material.Button"
tools:targetApi="lollipop">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello, world!"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This is just another line of text."/>
</LinearLayout>
As mentioned in this blog under 'Clickable Views', you can use android:background="?attr/selectableItemBackground:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="?attr/selectableItemBackground">
...
</LinearLayout>
Sorry for giving the wrong bit initially. The problem as looking a bit deeper is the background color is defined already as part of whatever you are using for your MaterialTheme extension for color highlights. Ironically, they have sources from transparent elsewhere but not here ?
What you want to so is make TWO new xml files to define your properties
In vales-v21/styles.xml you can redefine these any way you like or eliminate values you don't want to override
IF YOU JUST WANT THE RIPPLE, USE THE DRAWABLE CODE DEFINED AT THE BOTTOM
<style name="MyMaterialButton" parent=android:Widget.Material.Button>
<item name="background">#drawable/material_background_ripple</item>
<item name="textAppearance">?attr/textAppearanceButton</item>
<item name="minHeight">48dip</item>
<item name="minWidth">88dip</item>
<item name="stateListAnimator">#anim/button_state_list_anim_material</item>
<item name="focusable">true</item>
<item name="clickable">true</item>
<item name="gravity">center_vertical|center_horizontal</item>
</style>
Then your button background style
/drawable-v21/material_background_ripple.xml
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="#android:color/PICK_RIPPLE_COLOR_HERE">
<item android:drawable="#drawable/btn_default_mtrl_shape" />
</ripple>
Redacted:
Have you tried
customView.getWindow().setBackgroundDrawableResource(R.color.transparent);
?

ActionBar with icon and text in portrait mode

I can't seem to get an image and text to work in portrait mode on menu items in the action bar no matter what I try. I even tried to force android portrait orientation
My XML:
<item android:id="#+id/menu_save"
android:icon="#drawable/content"
android:orderInCategory="100"
android:title="New Group"
android:showAsAction="withText|always" />
Has anyone figured this out?
From the config.xml file of the native ActionBar:
values:
<bool name="config_allowActionMenuItemTextWithIcon">false</bool>
values-480dp:
<bool name="config_allowActionMenuItemTextWithIcon">true</bool>
To answer your question:
No you can't do that, if the devices width is smaller than 480dp. (Unless you want to create a custom rom with a modded framework)
Ahmad's answer makes clear why this is not possible. It is annoying that the action bar is not easier to customise.
One quick and dirty solution is to put two buttons in the menu, remove the icon from one and give the second a different name. Then in the corresponding java file, replicate the functionality for the extra button in onOptionsItemSelected. This gets over having to create a custom view for the action bar.
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
<item android:id="#+id/action_done"
android:icon="#drawable/ic_done"
android:title="#string/done"
yourapp:showAsAction="always" />
<item android:id="#+id/action_done2"
android:title="#string/done"
yourapp:showAsAction="always" />
<item android:id="#+id/action_cancel"
android:icon="#drawable/ic_cancel"
android:title="#string/cancel"
yourapp:showAsAction="always" />
<item android:id="#+id/action_cancel2"
android:title="#string/cancel"
yourapp:showAsAction="always" />
</menu>
I also saw this answer but didn't try it: withText in split ActionBar #Google Calendar Method. This is how it is done in Google Calendar but also relies on a custom view replacing the action bar.
The easiest way to do it is:
<menu 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"
tools:ignore="AppCompatResource">
<item
android:id="#+id/action_nexo"
android:title="title"
app:actionLayout="#layout/custom_menu_item"
app:showAsAction="always"/>
</menu>
custom_menu_item.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="?attr/actionBarSize">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"
android:text="#string/nexo_tile_short"
android:clickable="true"
android:focusable="true"
android:textSize="#dimen/text_size_small"
android:textStyle="bold"
android:textColor="?attr/actionMenuTextColor"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:paddingTop="#dimen/padding_small"
android:paddingBottom="#dimen/padding_small"
android:src="#drawable/nexo"/>
</LinearLayout>

Android: Image set as button background is not being shrunk?

I created a button with an image set as the background through a drawable. When I run the program the image is not being centered nor shrunk to fit the button. But when you click it, the pressed image is showing properly. This was working just the other day and I have no clue what happened to change it.
main.xml
<Button
android:id="#+id/rightarrow"
android:layout_width="0dp"
android:layout_height="fill_parent"
android:layout_weight="1"
android:background="#android:color/transparent"
android:clickable="false" />
Activity.java
rightarrow = (Button) findViewById(R.id.rightarrow);
rightarrow.setBackgroundResource(R.drawable.rightarrow_drawable);
rightarrow_drawable.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/rightarrow_pressed" android:state_pressed="true"/>
<item android:drawable="#drawable/rightarrow" />
</selector>
Why not set the selector in XML? You do not have to set it by code.
Try Project->Clean in Eclipse - maybe your resources got mixed.
Just replace your Button with an ImageView

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