Android- React When 2 Button Clicked

I want to build simple memory game. I used 16 button. I know how to react when specific button is cliked, but how can I react to each button click and check if the match button was

Solution 1:

In xml, use the same name for your onClick for each Button

<Button
   android:id="@+id/btn1"
   ...
   android:onClick="btnClick"/>
<Button
   android:id="@+id/btn2"
   ...
   android:onClick="btnClick"/>

And in your java code make sure that the function is public, has the same name you defined in your xml's onClick property above, and that it takes a View as its only parameter. The View will be the Button clicked so you can get its id and switch on that, use if/else or however you want to handle that

publicvoidbtnClick(View v)
{
    switch(v.getId())    // v is the btn that was clicked so this will give you its id
    {
        case (R.id.btn1):   btn1 was clicked
         ... do stuff

To answer your first question, you can use a flag as suggested earlier or a counter and if the counter == say 2 then the click does whatever you need. If it doesn't then you store the value of what that Button represents to compare in the second click

the other way would be to set them in a for loop, I assume you know how to set up a loop so I will keep this short

for (int i=0; i<buttons.size(); i++)
{
     ...
     button[i].setOnClickListener(ActivityName.this);
}

@OverridepublicvoidonClick(View v)
{
    intid= v.getId();
}

Make sure you implement OnClickListener()

Solution 2:

Using logic I was able to create a program, but it's very long. For each button you should do the same:

    Button B1;
    int x,y; //give them values and compare (example: B1=1, B2=2, B3=1 .. B1&B3 the same picture)intturn=1; //to know whos turn (x or y), default start on xint numberOfClicks=0; //when 2 buttons clicked, check//in the OnCreate()
    B1 = (Button) findViewById(R.id.b1); //assume B1's value = 1
    B1.setOnClickListener(newView.OnClickListener() {
        @OverridepublicvoidonClick(View arg0) {    //------------------------------------ OnClick Starts hereif (turn==1){
            //use x
                x=1;
                turn=2; //flip the turn
                numberOfButtons++; //one is clicked so far
            }else{
            //use y
                y=1;
                turn=1;
                numberOfButtons++;
            }


            if(numberOfButtons==2){
            //checkif(x==y){
                //same
                numberOfButtons=0; //restart counter
                }else{
                //not the same
                numberOfButtons=0; //restart counter
            }

        }//end of OnClick           

    }); //end of button OnClickListener 

if B2=7, then in the OnClick, the x and y should = 7. Each OnClick will have different x and y values.