I need help adding a background on android slider.java, so I want to have a background and to change it like this:
getBackground ( R.drawable_slider_bg);
if leftslider = PRESSED (getBackground = (R.drawable.slider_left_bg));
if rightslider = PRESSED (getBackground = (R.drawable.slider_right_bg));
Can someone help please?
// on slider.java
setBackgroundDrawable( R.drawable_slider_bg);
leftSlider.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
setBackgroundDrawable(R.drawable.slider_left_bg);
}
};
rightSlider.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
setBackgroundDrawable(R.drawable.slider_right_bg);
}
};
Related
My app currently has 5 buttons (I'm going to add more later) and when each button is clicked, it'll assign a number to an item.
I'm wondering if there's a more efficient way of writing the setOnClickListner (it seems like I have to use that since I'm using this as a fragment. I found a way to do it if I was to assign an onClick in the xml but I can't apply that to this part of the code). I have it written out 5 times (and in the future it'll be more)
buttons[0] = (Button) view.findViewById(R.id.cut1Btn);
buttons[1] = (Button) view.findViewById(R.id.cut2Btn);
buttons[2] = (Button) view.findViewById(R.id.cut3Btn);
buttons[3] = (Button) view.findViewById(R.id.cut4Btn);
buttons[4] = (Button) view.findViewById(R.id.cut5Btn);
buttons[0].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK 1",Toast.LENGTH_SHORT).show();
data = 1;
}
});
buttons[1].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK 2",Toast.LENGTH_SHORT).show();
data = 2;
}
});
buttons[2].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK 3",Toast.LENGTH_SHORT).show();
data = 3;
}
});
buttons[3].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK 4",Toast.LENGTH_SHORT).show();
data = 4;
}
});
buttons[4].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK 5",Toast.LENGTH_SHORT).show();
data = 5;
}
});
Could I maybe do a switch or a loop? Like assign i = 0, i < 5, i++ for the button array and then for data make that data = i + 1 ? If so, any suggestions on how I can do that?
Thanks!
THe other answers here will work, but either use the tag (generally a bad idea and prevents any other use) and aren't really object oriented. Instead you should make a class an instantiate it.
private class MyClickListener {
private int data;
public MyClickListener(int data) {
this.data = data;
}
public void onClick(View view) {
Toast.makeText(getActivity(), "TESTING BUTTON CLICK" + data,Toast.LENGTH_SHORT).show();
}
}
...
int i=0;
for(Button button : buttons) {
button.setOnClickListener(new MyClickListener(i++));
}
You could use a common method and then implement a switch case based upon R.id of your button
An example would in like this.
in onCreate(--) method
cut1Btn = (Button) view.findViewById(R.id.cut1Btn);
cut2Btn = (Button) view.findViewById(R.id.cut2Btn);
cut3Btn = (Button) view.findViewById(R.id.cut3Btn);
cut4Btn = (Button) view.findViewById(R.id.cut4Btn);
cut5Btn = (Button) view.findViewById(R.id.cut5Btn);
cut1Btn.setOnClickListener(this);
cut2Btn.setOnClickListener(this);
cut3Btn.setOnClickListener(this);
cut4Btn.setOnClickListener(this);
cut5Btn.setOnClickListener(this);
Implement View.onClickListener in your activity and override this method in your activity
public void onClick(View v){
switch(v.getId()){
case R.id.cut1Btn:
//Put Your Code Here
break;
case R.id.cut2Btn:
//Put Your Code Here
break;
case R.id.cut3Btn:
//Put Your Code Here
break;
case R.id.cut4Btn:
//Put Your Code Here
break;
case R.id.cut5Btn:
//Put Your Code Here
break;
}
}
You can implement a switch to do this things:
Your class must implement OnClickListener and override function OnClick(View view).
Then just set OnClickListener(this) like this on onCreate method
buttons[1].setOnClickListener(this)
buttons[2].setOnClickListener(this)
buttons[3].setOnClickListener(this)
do a switch-case on override function
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
// button 1 do
break;
case R.id.button2:
// button 2 do
break;
case R.id.button3:
// button 3 do
break;
}
}
I want to play music when a button is clicked, but I want to play different music with different button then the first music stopped and the second music would play.
code:
charge = MediaPlayer.create(this, R.raw.charge);
santai1 = MediaPlayer.create(this, R.raw.santai1);
}
public void charge(View view) {
charge.start();
}
public void santai1(View view) {
santai1.start();
}
Say, I clicked charge button and then played the charge.mp3. Then I want to play santai1.mp3 but when I clicked the santai1 button the charge.mp3 will stop playing and the santai1.mp3 will play.
I want this to be able the opposite and it can be done continuously.
When I clicked santai1 button then santai1.mp3 will be played, while the santai.mp3 still playing I clicked the charge button. I want the santai1.mp3 stopped and then play the chage.mp3.
When I clicked on charge button, then I clicked on santai1 button, both music started together.
if you need it for many
create a mediaplayer object and a method.
private MediaPlayer media;
private void stopMusic() {
if (media != null) {
media.stop();
media.release();
media= null;
}
}
button1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
stopMusic();
media= MediaPlayer.create("you acivityname".this, "mp3file directory");
media.start();
}
});
try this:
btn1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(charge.isPlaying()){
charge.stop();
}
santail.start();
}
});
and do the same for other button
well it's simple you need 2 if statments for the buttons to check if one of them is playing.
button1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(santail.isPlaying()){
santail.stop();
}
charge.start();
}
});
button2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(charge.isPlaying()){
charge.stop();
}
santail.start();
}
});
I want to attach two click listener in a button and both onclicklistener should be different. Is there any way to do this.? Can't use function to call from first to second. When I use this then I got output from second one only. I want both output.
I am working on some screening task, so whenever a use click on a button it tell me that user clicked on this in Logcat and also button do its normal task.
First is :
Button btn = (Button) findViewById(R.id.button1);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Log.i("First Click" , "Clicked on button 1");
}
});
Second is :
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v2) {
if (v2 instanceof Button) {
Log.i("User Clicked a checkbox with value ", " : " + ((Button) v2).getText().toString());
}
}
});
You can't do that. Setting your second OnClickListener removes the first one.
That's why the function is called setOnClickListener() instead of addOnClickListener()
As you say, you can call two functions from the onClick()
Edit:
On your edit, you say that you want to show a message when your button is clicked.
You can add the loggging functionality that you need before doing anything else on the event, simply doing
#Override
public void onClick(View v) {
// Log something
// Your functionality
}
Or you can create a class implementing View.OnClickListener
public class MyOnClickListener implements View.OnClickListener {
#Override
public void onClick(View v) {
// Log something
}
}
And then, on your Activity:
btn.setOnClickListener(new MyOnClickListener() {
#Override
public void onClick(View v) {
super.onClick(v);
// Your functionality
}
});
You can use function in OnClickListener like-
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
run1();
run2();
}
});
private void run1(){
//Your first functionality
}
private void run2(){
//Your second functionality
}
If I understood you correctly, you could do this:
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dothings(); //what you are trying to achieve with this button click
showViewInLogCat(v); //to show you the view in the logcat
}
}
where showViewInLogCat() is a function that show you which view was clicked in your logcat:
public void showViewInLogCat(View view) {
if (view instanceof Button) {
Log.i("User Clicked a checkbox with value ", " : " + ((Button) view).getText().toString());
}
//and add the other if
}
You can call this function in every OnClick event on other views
Probably if you want to do something like this..!
btn.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v) {
Log.i("First Click" , "Clicked on button 1");
// add a boolean here to check if you want to do the task or not.
doTask = true;
doGeneralTask(doTask); //to show you the view in the logcat
}
}
and in doGeneralTask(doTask) do something like this.
public void doGeneralTask(boolean doTask) {
if (doTask) {
// do whatever generalized tasks you need.
}
}
I searched on Google and StackOverflow but I did not find really what I need. I want to disable a button runtime in a click event but it does not work. I have 2 buttons whose names are ButtonA and ButtonB
My code:
ButtonA.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
ButtonA.setEnabled(false);
ButtonA.invalidate();
ButtonB.setEnabled(true);
ButtonB.invalidate();
}
});
ButtonB.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
ButtonB.setEnabled(false);
ButtonB.invalidate();
ButtonA.setEnabled(true);
ButtonA.invalidate();
}
});
I use onclick listener events in my list adapter class
If I refresh the screen it works but I want to do it runtime. When I click the button I want to see it will be disabled.
How can I fix this?
You can use clickable() method for this.
ButtonA.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
ButtonA.setClickable(false);
ButtonA.invalidate();
ButtonB.setClickable(true);
ButtonB.invalidate();
}
});
ButtonB.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
ButtonB.setClickable(false);
ButtonB.invalidate();
ButtonA.setClickable(true);
ButtonA.invalidate();
}
});
Or you can try this:
Button b=(Button) findViewById(R.id.btnB);
b.setEnabled(true);
The thing is :
it should be defined by final,
like this;
final Button ButtonA,ButtonB;
I'm running through a for-loop and am generating TextViews that should be clickable because I want to start then an intent and pass the url as parameter as well as the source.
So, I've tried this
articleURL[i].setPaintFlags(articleURL[i].getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
articleURL[i].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//System.out.println(articleURL[v.getId()].getText().toString());
System.out.println(v.getId());
}
});
The problem i encounter is that the v.getId() is always 0. And when i use the commented code
System.out.println(articleURL[v.getId()].getText().toString());
I get an exception that says
java.lang.ArrayIndexOutOfBoundsException: length=10; index=-1
I just need the content of the TextView i clicked on. How exactly do i get it? articleURL[i] doesn't work because he doesn't know i then. How can v.getId() always be -1? No matter which one I click?
This here is the complete for-loop
TextView articleURL = new TextView[hashMapSize];
for (int i = 0; i < hashMapSize; i++) {
articleURL[i] = new TextView(getActivity());
articleURL[i].setPaintFlags(articleURL[i].getPaintFlags() | Paint.UNDERLINE_TEXT_FLAG);
articleURL[i].setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.println(articleURL[v.getId()].getText().toString());
//System.out.println(v.getId());
}
});
}
You actually get the View in the parameter. Just cast it to TextView and call getText()
public void onClick(View v) {
Log.d("text",((TextView) v).getText().toString());
}
Also don't use System.out.println. This is Android, not desktop Java, and coding android is a huge difference to normal Java. You should get a book on Android and read it, otherwise your apps will start crashing pretty soon and you won't have any chance to fix them.
You may try the following:
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.println(((TextView)v).getText());
}
};
// ... some loop
articleURL[i].setOnClickListener(listener);
If you also want to get index of item, try this:
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.println(v.getTag());
}
};
// ... some loop
articleURL[i].setTag(i);
articleURL[i].setOnClickListener(listener);
Try this..
use this as globel
TextView articleURL[];
and then initial the articleURL like below
articleURL = new TextView[hashMapSize];
and then if your extends fragement means use below
articleURL[i] = new TextView(getActivity());
extends activity means
articleURL[i] = new TextView(this);
and
System.out.println(((TextView)v).getText().toString());