Develop Reference

how to add a button value to edittext

l have 3 buttons and 1 edittext
<Button
android:id="#+id/button1" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="1" />
<Button
android:id="#+id/button2" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="2" />
<Button
android:id="#+id/button3" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="3" />
<EditText
android:id="#+id/display" android:layout_width="match_parent"
android:layout_height="wrap_content" android:text="#string/result" />
when i click on android emulator button 1 the text value of 1 should display in edittext how can do this

you have a method button.getText() from which you can get the text of button 1 and then can update the edittext using edittext.setText() method

Just take the reference of that button from the xml layout file in your java file,the setOnClickListener() on it and override the method onClick() of the onClickListener().In that onClick method just set The text of the edittext to the one you wish to add into it.See this Android: How to set the contents of a Edit text from a Button click?

final Button b1 = (Button) findViewById(R.id.button1);
final EditText e1 = (EditText) findViewById(R.id.display);
b1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
e1.setText(b1.getText().toString());
}
});
just copy paste this code it will surely work for you

Its working.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText = (EditText) findViewById(R.id.edittext1);
button1 = (Button) findViewById(R.id.button1);
button2 = (Button) findViewById(R.id.button2);
button3 = (Button) findViewById(R.id.button3);
button1.setOnClickListener(this);
button2.setOnClickListener(this);
button3.setOnClickListener(this);
}
#Override
public void onClick(View v) {
Button button = (Button)v;
editText.setText(button.getText().toString());
}

Accessing another view from a button's onclick event

I am developing a simple game and in an activity I have 2 image buttons:
<ImageButton
android:id="#+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/desc"
android:src="#drawable/img1"
android:onClick="btn1_click" />
<ImageButton
android:id="#+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/desc"
android:src="#drawable/img2"
android:onClick="btn2_click" />
And I am showing some animations when buttons are clicked:
public void btn1_click(View v) {
v.startAnimation(animLeftTranslate);
}
public void btn2_click(View v) {
v.startAnimation(animRightTranslate);
}
Of course, only the clicked button is being animated but what I want to do is to show animation for both two buttons when one of them are clicked. How can I do this?

Instead of using android:onClick, you can do it in java code:
ImageButton btn1 = (ImageButton) findViewById(R.id.bt1);
ImageButton btn2 = (ImageButton) findViewById(R.id.bt2);
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
btn1.startAnimation(animRightTranslate);
btn2.startAnimation(animRightTranslate);
}
};
btn1.setOnClickListener(listener);
btn2.setOnClickListener(listener);`
`

You can accomplish this by your own approach i.e. using android:onClick attribute:
Assign one function to both ImageButton for example btns_clicked(). So add android:onClick='btns_clicked' to both your buttons. And in that function write:
public void btns_clicked(View v) {
View btn1 = findViewById(R.id.btn1);
View btn2 = findViewById(R.id.btn2);
btn1.startAnimation(animLeftTranslate);
btn2.startAnimation(animRightTranslate);
}

you can do this as describe below.
<ImageButton
android:id="#+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/desc"
android:src="#drawable/img1"
android:onClick="btn_click" />
<ImageButton
android:id="#+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/desc"
android:src="#drawable/img2"
android:onClick="btn_click" />
and in activity, you have to use
public void btn_click(View v) {
if(v.getId() == R.id.btn1)
v.startAnimation(animLeftTranslate);
else if(v.getId() == R.id.btn2)
v.startAnimation(animRightTranslate);
}

onclick event in dialog preference

I have a custom dialog preference that have bunch of button.each button represent a number.something like clock application when you want to set alarm. how can I get onClick of each button in my dialog preference?
this is part of my dialog layout (time_picker) :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<LinearLayout
android:id="#+id/showTimer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="_ _ : _ _"
android:textSize="20dp"
android:textStyle="bold" />
</LinearLayout>
<RelativeLayout
android:id="#+id/Buttons"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_below="#+id/showTimer"
android:layout_marginTop="10dp">
<Button
android:id="#+id/button1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button3"
android:layout_centerInParent="true"
android:text="6"
android:textStyle="bold"
android:textSize="20dp"
android:tag="1"
android:background="#android:color/transparent" />
<Button
android:id="#+id/button2"
android:layout_width="100dp"
...
this is Setting layout that launch dialog preference:
<com.example.test.TimerForNoti
android:key = "pref_sync_noti_timer"
android:title = "#string/pref_sync_noti_timer"
android:summary = "#string/pref_sync_noti_timer_summ"
android:dialogMessage = "#string/pref_sync_noti_timer">
</com.example.test.TimerForNoti>
and this is class of dialog preference (TimerForNoti) :
public class TimerForNoti extends DialogPreference
{
public TimerForNoti(Context context, AttributeSet attrs) {
super(context, attrs);
setDialogLayoutResource(R.layout.time_picker);
setPositiveButtonText(R.string.ok);
setNegativeButtonText(R.string.cancel);
Dialog di = new Dialog(context);
di.setContentView(R.layout.time_picker);
OnClickListener test = new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String tag = v.getTag().toString();
if(tag == "1"){
Log.v("onOne", "ok");
}
// .....
}
};
Button btn1 = (Button) di.findViewById(R.id.button1);
btn1.setOnClickListener(test);
}
}

If I understand your question right, you can set tag for each button and set one OnClickListener for all of them:
<Button
android:id="#+id/button1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button5"
android:layout_alignBottom="#+id/button5"
android:layout_alignLeft="#+id/button3"
android:layout_centerInParent="true"
android:text="6"
android:textStyle="bold"
android:textSize="20dp"
android:tag="6"
android:background="#android:color/transparent" />
Code:
OnClickListener buttonsListener = new OnClickListener() {
#Override
public void onClick(View v) {
String buttonText = v.getTag().toString();
// your logic here
}
};
Button btn1 = (Button)findViewById(R.id.button1);
btn1.setOnClickListener(buttonsListener);
Button btn2 = (Button)findViewById(R.id.button2);
btn2.setOnClickListener(buttonsListener);
Button btn3 = (Button)findViewById(R.id.button3);
btn3.setOnClickListener(buttonsListener);
// your buttons here
Also you can use v.getId() in OnClickListener for determining which button was clicked

As much I understood your question. You want one method to be called on every button clicked.
For that Add this to your every button element in xml:
<Button
android:onClick="OnClick"
.. />
And this method to your .java file where you want to perform task:
public void OnClick(View v){
// do something....
}
Or you can directly call setOnClickListener at button object
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// do something....
}
});

how to set image as button in xml and in class

Im new to android..please guide me..
I want to set image to act as button..
How to implement this in xml and in class file?
I now the code to set button in xml and class file like this..
<Button
android:id="#+id/nxt_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/rdtxt"
android:layout_marginRight="22dp"
android:layout_marginTop="34dp"
android:text="Next" />
Button nextBtn = (Button) findViewById(R.id.nxt_btn);
I want practice.png this image want to act as button..I have put this image into drawables..
Now how to implement this by code...please guide me...
Thank a lot...

In xml you can add:
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/image" />
And in Activity:
ImageView image = (ImageView) findViewById(R.id.image);
image.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
//Do your stuff here
}
});

In a xml file:-
<Button
android:id="#+id/nxt_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/rdtxt"
android:layout_marginRight="22dp"
android:background="#drawable/practice"
android:layout_marginTop="34dp" />
or
In a Activity :-
Button nextBtn = (Button) findViewById(R.id.nxt_btn);
nextBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
//Do your stuff here
}
});

Use ImageButton. You can set an image to it using android:src="#drawable/myImage" and you can set OnClickListener to it.
For example :
<ImageButton
android:id="#+id/nxt_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#+id/rdtxt"
android:layout_marginRight="22dp"
android:layout_marginTop="34dp"
android:src="#drawable/next_btn_img" />
ImageButton next = (ImageButton) findViewById(R.id.nxt_btn);

focusing on a button on click

Is it possible to highlight or change the image of a button to another image Onclick() of a button ?
this is my xml for the button
<Button android:layout_height="wrap_content"
android:textColor="#000000"
android:gravity="center_horizontal|center_vertical" android:layout_gravity="center_horizontal|center_vertical"
android:focusableInTouchMode="true"
android:background="#drawable/button"
android:layout_width="wrap_content"
android:soundEffectsEnabled="true"
android:text="START"
android:focusable="true"
android:id="#+id/start"></Button
>

yes you can, first get the reference of both buttons using findViewById() method, then do this
button1.setOnclickListener(new OnClickListener(){
protected void onClick(View v){
button2.setBackground(Color.WHITE);
}
});
edit
override another method.
button1.setOnFocusChangedListener(new OnFocusChangedListener(){
protected void onFocusChange()
{
button2.setBackground("your 1st image")
}
});

You can use setImageRessource method :
ImageButton.setOnclickListener(new OnClickListener(){
protected void onClick(View v){
imageButton.setImageResource(R.id.newImage)
}
});