I have 3 ImageButtons. I have been trying to change the resource on image button onClick programmatically like when an imagebutton is pressed change the image on it until some other button is not pressed but its not changing. I have used selector for the source:
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" android:drawable="#drawable/favorites02" /> <!-- pressed -->
<item android:state_focused="true" android:drawable="#drawable/favorites02" />
<item android:state_hovered="true" android:drawable="#drawable/favorites01" />
<item android:drawable="#drawable/favorites00" /> <!-- default -->
</selector>
And in java in OnClicklistener I am changing resource like this:
btnFavorite.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
isFavchecked = true;
isAllChecked = false;
isRecentChecked = false;
btnFavorite.setImageResource(R.drawable.favorites02);
btnRecent.setImageResource(R.drawable.tile_recent_style);
btnAll.setImageResource(R.drawable.tile_music_style);
}
});
but it only shows what is declared for the first time.
Related
i would like to change the background color in ontouchListener, i can change textColor but the background color remains unchanged: here is my code:
Button usd=findViewById(R.id.button_divide);
Button cdf=findViewById(R.id.button_multiply);
usd.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent event) {
SharedPreferences.Editor editor=sharedPref.edit();
editor.putString("currency","USD");
editor.apply();
usd.setBackgroundColor(Color.parseColor("#515de1"));
usd.setTextColor(Color.WHITE);
cdf.setBackgroundColor(Color.WHITE);
cdf.setTextColor(Color.parseColor("#515de1"));
return false;
}
});
I's better to use the selector instead of code
<Button
android:id="#+id/myButton"
android:background="#drawable/selector_my_button"
android:layout_width="100dp"
android:layout_height="36dp"
android:text="My Button" />
and the selector_my_button.xml is like this
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="#color/white"/> <!-- pressed -->
<item android:state_focused="true" android:drawable="#color/blue"/> <!-- focused -->
<item android:drawable="#color/black"/> <!-- default -->
</selector>
I need to show different color on button after click because user need to know button is
Click.
I don't understand how to do this?
Give me suggestion. button click shoud be programatically, No Need to create XML for this
//XML file saved at res/drawable/button_bg.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#ffff0000"/> <!-- pressed -->
<item android:state_focused="true"
android:color="#ff0000ff"/> <!-- focused -->
<item android:color="#ff000000"/> <!-- default -->
</selector>
in JAVA
am create like this
Button Settings_Button = new Button(this) ;
Settings_Button.setClickable(true);
//Settings_Button.setBackgroundResource(R.drawable.selector);
Settings_Button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// Intent newIntent = new Intent(activity.getBaseContext(), ProfileSettingActivity.class);
// activity.startActivity(newIntent);
}
});
BUt this is not working
EDIT : How to change Background color when click button in programatically.
try this way,hope this will help you...
button_selector
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/button_pressed" android:state_pressed="true"></item>
<item android:drawable="#color/button_pressed" android:state_focused="true"></item>
<item android:drawable="#color/button_default" android:state_enabled="true" android:state_focused="false" android:state_pressed="false"></item>
<item android:drawable="#color/button_pressed" android:state_enabled="false"></item>
</selector>
color
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="button_pressed">#ffff0000</color>
<color name="button_default">#ff0000ff</color>
</resources>
ACTIVITY code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = new Button(this);
btn.setBackgroundResource(R.drawable.button_selector);
btn.setText("Custom Button");
addContentView(btn,new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}
Create selector drawable according all state.
Below is sample example.
btn_green_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_focused="false"
android:state_selected="false"
android:state_pressed="false"
android:drawable="#drawable/btn_green_unselected" />
<item
android:state_focused="true"
android:state_selected="false"
android:state_pressed="false"
android:drawable="#drawable/btn_green_selected" />
<!-- Focused states -->
<item
android:state_focused="true"
android:state_selected="true"
android:state_pressed="false"
android:drawable="#drawable/btn_green_selected" />
<!-- Pressed state -->
<item
android:state_pressed="true"
android:drawable="#drawable/btn_green_selected" />
</selector>
btn_green_selected.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#00B2B2"/>
</shape>
btn_green_unselected.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#8ED3CD"/>
</shape>
now applied btn_green_selector.xml in coding.
Settings_Button.setBackgroundResource(R.drawable.btn_green_selector);
you can also use Images instead of Shape.
Try Like this,
main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/myLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="64dp"
android:layout_marginTop="71dp"
android:text="changeColor" />
</LinearLayout>
ChangeBackgroundActivity.java
public class ChangeBackgroundActivity extends Activity {
/** Called when the activity is first created. */
Button blueButton;
LinearLayout myLO;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myLO=(LinearLayout)findViewById(R.id.myLayout);
blueButton=(Button)findViewById(R.id.button1);
blueButton.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
myLO.setBackgroundColor(Color.BLUE);
}
});
}
}
You can use this line in buttons onclicklistener,button.setBackgroundColor(Color.WHITE);
button3.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
button3.setBackgroundResource(R.color.buttonDarkSelected);
button4.setBackgroundResource(R.color.buttonMediumUnselected);
button3.setTextColor(R.color.yellow);
}
});
button4.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
button4.setBackgroundResource(R.color.buttonDarkSelected);
button3.setBackgroundResource(R.color.buttonMediumUnselected);
button4.setTextColor(R.color.yellow);
}
});
}
I am trying to change Button's background and textcolor clicking in that buttons. the background is fine working fine but textcolor always black (instead I want it be yellow) what's my problem here.
Try this:
button4.setTextColor(getApplication().getResources().getColor(R.color.yellow));
This will work to change the text color to yellow
You can see this :
http://developer.android.com/reference/android/graphics/drawable/StateListDrawable.html
With state list, you can choose differents color for button with differents state.
regards,
define a selector like this:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false" android:color="#ffffff" />
<item android:state_focused="true" android:state_pressed="true" android:color="#000000" />
<item android:state_focused="false" android:state_pressed="true" android:color="#000000" />
<item android:color="#ffffff" />
</selector>
save this as xml file (for example btn_text_color.xml)in your ../res/drawable/
Link it to your button like:
android:textColor="#drawable/btn_text_color"
For more details on the subject, see the link that #Kentino posted.
yesterday I noticed the possibility to integrate Fragments in older API Levels through the Compatibility package, but thats not really essential for the question. :)
I have a Button with an OnClickListener
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
doSomething();
button.setPressed(true);
}
});
Because of the actual clicking, it is shown as pressed and after releasing the click, the button state is not pressed and stays that way.
Is there a simple way that keeps the button state pressed after releasing?
First thing I can think of would be some sort of timer, but that seems unreasonable.
Just to note this is because Android is changing the setPressed both before and after your onClickEvent, so changing it yourself has no effect. Another way to get around this is to use the onTouchEvent.
button.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// show interest in events resulting from ACTION_DOWN
if (event.getAction() == MotionEvent.ACTION_DOWN) return true;
// don't handle event unless its ACTION_UP so "doSomething()" only runs once.
if (event.getAction() != MotionEvent.ACTION_UP) return false;
doSomething();
button.setPressed(true);
return true;
}
});
Use ToggleButton instead of Button.
<ToggleButton
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#drawable/topping_selector"
android:checked="false"
android:textOff="Topping2"
android:textOn="Topping2" />
topping_selector.xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true"
android:drawable="#drawable/btn_topping_on" />
<item android:state_checked="false"
android:drawable="#drawable/btn_topping_off" />
</selector>
You can keep the button states in xml file under drawable folder, then used as background for button.
For example:
android:background="#drawable/buttonstate"
buttonstate.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="#drawable/back_focused" />
<item android:drawable="#drawable/back" /> <!-- default -->
</selector>
Better solution:
In xml file:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_activated="true">
<bitmap android:src="#drawable/image_selected"/>
</item>
<item>
<bitmap android:src="#drawable/image_not_selected"/>
</item>
</selector>
And in java:
#Override
public void onClick(View v) {
v.setActivated(!v.isActivated());
}
You can use android.os.Handler class. Ugly, but works also:
final Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
doSomething();
new Handler().post(new Runnable() {
#Override
public void run() {
button.setPressed(true);
}
});
}
});
Another solution is to extend Button and override setPressed(boolean pressed) method so you can handle platform calls from the onClickEvent using a flag, for example changing the boolean pressed parameter depending on your needs.
public class MyButton extends Button {
boolean isSelected = false; //this is your flag
#Override
public void setPressed(boolean pressed) {
if(isSelected) {
//here you change the parameter so it stays pressed
super.setPressed(true);
return;
}
super.setPressed(pressed);
}
public void setIsSelected(boolean selected) {
this.isSelected = selected;
}
public MyButton(Context context) {
super(context);
}
}
This is the solution I used, It also works on android 7.0 at the moment.
YourActivity.java
public void onStandbyStart(String message) {
startStandbyBtn.setActivated(true);
}
public void onBackOnline(String message) {
startStandbyBtn.setActivated(false);
}
YourActivityLayout
<Button
...
style="#style/generic_btn_style"
... />
values/styles.xml
<style name="generic_btn_style" parent="#android:style/Widget.Button">
<item name="android:gravity">center_vertical|center_horizontal</item>
<item name="android:background">#drawable/generic_btn</item>
<item name="android:textColor">#color/selector_white_black</item>
<item name="android:focusable">true</item>
<item name="android:clickable">true</item>
</style>
drawable/generic_btn.xml
This selector chooses the button background. I use the pressed as the activated.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/generic_btn_disabled" android:state_enabled="false" />
<item android:drawable="#drawable/generic_btn_pressed" android:state_enabled="true" android:state_pressed="true" />
<item android:drawable="#drawable/generic_btn_pressed" android:state_activated="true" />
<item android:drawable="#drawable/generic_btn_focused" android:state_enabled="true" android:state_focused="true" />
<item android:drawable="#drawable/generic_btn_enabled" android:state_enabled="true" />
</selector>
color/selector_black_white
Here I set the text color. In my case, I need to pick the textcolor black when pressed.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="#fff" android:state_pressed="true" /> <!-- pressed -->
<item android:color="#fff" android:state_activated="true" /> <!-- pressed -->
<item android:color="#000" /> <!-- default -->
</selector>
I want to change the text inside a button to be bold when the button is highlighted or pressed. I currently use a xml file to define the button and use the XML to change how it looks when pressed but I would like to do this without using an image.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true"
android:state_pressed="false"
android:drawable="#drawable/reset_hover" />
<item android:state_focused="true"
android:state_pressed="true"
android:drawable="#drawable/reset_hover" />
<item android:state_focused="false"
android:state_pressed="true"
android:drawable="#drawable/reset_hover" />
<item android:drawable="#drawable/reset" />
</selector>
I tried using something like the following, but it doesn't seem to ever get called.
final Button btn_reset = (Button) findViewById(R.id.btn_reset);
btn_reset.setOnClickListener(this);
btn_reset.setOn(new OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus){btn_reset.setTypeface(null, Typeface.BOLD);}
else{btn_reset.setTypeface(null, Typeface.NORMAL);}
}
});
You could try putting the bold code inside the click event for the button:
final Button button = (Button) findViewById(R.id.button_id);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Set bold on click
button.setTypeface(null, Typeface.BOLD);
}
});
Attention! See update below
You could create your own style.xml in which you define the text style. In your selector you can reference to the style.
style.xml
<style name="myStyle">
<item name="android:textSize">9px</item>
<item name="android:gravity">center_horizontal</item>
<item name="android:textColor">#fff</item>
<item name="android:textStyle">bold</item>
</style>
And in your selector
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true"
android:state_pressed="false"
style="#style/myStyle" /> </selector>
Update 2020: My answer is more than 10 years old. It doesn´t work anymore!
Styles are not allowed in selectors. Reference
And to make the text bold, use this code:
btn_reset.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
// When the user clicks the Button
case MotionEvent.ACTION_DOWN:
btn_reset.setTypeface(Typeface.DEFAULT_BOLD);
break;
// When the user releases the Button
case MotionEvent.ACTION_UP:
btn_reset.setTypeface(Typeface.DEFAULT);
break;
}
return false;
}
});