Get button coordinates and detect if finger is over them - Android

Get button coordinates and detect if finger is over them - Android - java

I have 4 buttons in my android app activity. This is what it looks like:
As you can see, the textViews at the bottom of the screen display the x and y coordinates. The coordinates are in reference to a relative layout. (See below given code)
Now, what I want to do is get the x and y coordinates of the 4 buttons at runtime and then figure out if my finger is touching the buttons while moving or not. In simple words, I want to press the buttons by swiping my finger over them instead of lifting and touching. How can I achieve it? I want to implement it in my piano application.
I was able to get the coordinates on screen and they change as I move my finger.
So, my question is How can I get the coordinates of the buttons and detect if my finger is swiping above them?:
XML
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:id="#+id/relativelayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Y Cord : "
android:layout_marginLeft="10dp"
android:layout_marginBottom="10dp"
android:id="#+id/textView"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="X Cord : "
android:layout_marginLeft="10dp"
android:layout_marginBottom="10dp"
android:id="#+id/textView2"
android:layout_above="#+id/textView"
android:layout_alignParentLeft="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/textView3"
android:textColor="#000000"
android:layout_below="#+id/textView2"
android:layout_toRightOf="#+id/textView" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/textView4"
android:textColor="#000000"
android:layout_marginBottom="10dp"
android:layout_above="#+id/textView"
android:layout_toRightOf="#+id/textView" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button"
android:textColor="#000000"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:textColor="#000000"
android:id="#+id/button2"
android:layout_below="#+id/button"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:textColor="#000000"
android:id="#+id/button3"
android:layout_below="#+id/button2"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button4"
android:textColor="#000000"
android:layout_below="#+id/button3"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" />
</RelativeLayout>
Java
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView xcordview = (TextView) findViewById(R.id.textView4);
final TextView ycordview = (TextView) findViewById(R.id.textView3);
RelativeLayout touchview = (RelativeLayout) findViewById(R.id.relativelayout);
touchview.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
xcordview.setText(String.valueOf(event.getX()));
ycordview.setText(String.valueOf(event.getY()));
return true;
}
});
}
}
Thank you all very very much!
Update:
public class MainActivity extends Activity {
RelativeLayout touchview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView xcordview = (TextView) findViewById(R.id.textView4);
final TextView ycordview = (TextView) findViewById(R.id.textView3);
touchview = (RelativeLayout) findViewById(R.id.relativelayout);
touchview.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
xcordview.setText(String.valueOf(event.getX()));
ycordview.setText(String.valueOf(event.getY()));
for(int i = 0; i < touchview.getChildCount(); i++){
if(checkInterSection(touchview.getChildAt(i), event.getRawX(), event.getRawY())){
Button button = (Button) findViewById(R.id.button);
button.setBackgroundColor(Color.BLUE);
break;
}
}
return true;
}
});
}
private boolean checkInterSection(View view, float rawX, float rawY) {
int[] location = new int[2];
view.getLocationOnScreen(location);
int x = location[0];
int y = location[1];
int width = view.getWidth();
int height = view.getHeight();
//Check the intersection of point with rectangle achieved
return (!(rawX < x || rawY > x + width || rawY < y || rawY > y + height));
}
}

package com.example.touch;
import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class MainActivity extends Activity {
Button b1, b2, b3, b4;
int b1x1, b1x2, b1y1, b1y2;
private TextView xcordview;
private TextView ycordview;
private TextView buttonIndicator;
private RelativeLayout touchview;
private static int defaultStates[];
private Button mLastButton;
private final static int[] STATE_PRESSED = {
android.R.attr.state_pressed,
android.R.attr.state_focused
| android.R.attr.state_enabled };
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
xcordview = (TextView) findViewById(R.id.textView4);
ycordview = (TextView) findViewById(R.id.textView3);
buttonIndicator = (TextView) findViewById(R.id.button_indicator);
touchview = (RelativeLayout) findViewById(R.id.relativelayout);
b1 = (Button) findViewById(R.id.button1);
b2 = (Button) findViewById(R.id.button2);
b3 = (Button) findViewById(R.id.button3);
b4 = (Button) findViewById(R.id.button4);
defaultStates = b1.getBackground().getState();
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
touchview.setOnTouchListener(new View.OnTouchListener() {
private boolean isInside = false;
#Override
public boolean onTouch(View v, MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
xcordview.setText(String.valueOf(x));
ycordview.setText(String.valueOf(y));
for (int i = 0; i < touchview.getChildCount(); i++) {
View current = touchview.getChildAt(i);
if (current instanceof Button) {
Button b = (Button) current;
if (!isPointWithin(x, y, b.getLeft(), b.getRight(), b.getTop(),
b.getBottom())) {
b.getBackground().setState(defaultStates);
}
if (isPointWithin(x, y, b.getLeft(), b.getRight(), b.getTop(),
b.getBottom())) {
b.getBackground().setState(STATE_PRESSED);
if (b != mLastButton) {
mLastButton = b;
buttonIndicator.setText(mLastButton.getText());
}
}
}
}
return true;
}
});
}
#Override
public void onWindowFocusChanged(boolean hasFocus) {
// TODO Auto-generated method stub
super.onWindowFocusChanged(hasFocus);
}
static boolean isPointWithin(int x, int y, int x1, int x2, int y1, int y2) {
return (x <= x2 && x >= x1 && y <= y2 && y >= y1);
}
}
layout file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/relativelayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff" >
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="10dp"
android:layout_marginLeft="10dp"
android:text="Y Cord : "
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_marginBottom="10dp"
android:layout_marginLeft="10dp"
android:text="X Cord : "
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textView2"
android:layout_toRightOf="#+id/textView"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" />
<TextView
android:id="#+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/textView"
android:layout_marginBottom="10dp"
android:layout_toRightOf="#+id/textView"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#000000" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="B1"
android:textColor="#000000" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/button1"
android:text="B2"
android:textColor="#000000" />
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/button2"
android:text="B3"
android:textColor="#000000" />
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/button3"
android:text="B4"
android:textColor="#000000" />
<TextView
android:id="#+id/button_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/textView4"
android:layout_marginRight="33dp"
android:text="No one"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button_indicator"
android:layout_alignBottom="#+id/button_indicator"
android:layout_marginRight="29dp"
android:layout_toLeftOf="#+id/button_indicator"
android:text="Entered: "
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>

private boolean checkInterSection(View view, int rawX, int raxY) {
int[] location = new int[2];
view.getLocationOnScreen(location);
int x = location[0];
int y = location[1];
int width = view.getWidth();
int height = view.getHeight();
//Check the intersection of point with rectangle achieved
return (!(rawX < x || rawY > x + width || rawY < y || rawY > y + height));
}
for(int i = 0; i < touchview.getChildCount(); i++){
if(checkInterSection(touchview.getChildAt(i), event.getRawX(), event.getRawY())){
if(checkInterSection(touchview.getChildAt(i), event.getRawX(), event.getRawY())){
((Button)touchview.getChildAt(i)).setBackgroundColor(Color.BLUE);// Type casting may not be required
}else{
((Button)touchview.getChildAt(i)).setBackgroundColor(Color.WHITE);
}
break;
}
}

getX() getY() for a OnTouchListener give coordinates relative the the cooresponding view.
If you prefer screen coordinates instead you can use one of the following
overwrite onTouchEvent for the activity and remove OnTouchListener-s for buttons,
in which case MotionEvent will report screen coordinates instead of Button coordinates
#Override
public boolean onTouchEvent (MotionEvent event) {
xcordview.setText(String.valueOf(event.getX()));
ycordview.setText(String.valueOf(event.getY()));
return true;
}
use getTop() getLeft() in OnTouchListener for a button:
touchview.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
xcordview.setText(String.valueOf(event.getX()+v.getLeft()));
ycordview.setText(String.valueOf(event.getY()+v.getTop()));
return true;
}
});
You may consider using GestureDetector to detect swipes, however it isn't really necessary.

karioki 's solution works well. In order to make it work even when we start the move from inside one of the buttons, just add
android:clickable="false"
for every button in xml.

Related

Issues reading sensor from a fragment in android [duplicate]

This question already has answers here:
getView returning null when fragment has been created from an activity
(6 answers)
Closed 5 years ago.
I'm having an issue displaying and interacting with sensors in a fragment. I have a couple of working fragments already, but when I load the sensor fragment it force closes.
sensors.java is the fragment and looks like this
public class sensors extends Fragment implements SensorEventListener
{
private float lastX, lastY, lastZ;
private SensorManager sensorManager;
private Sensor accelerometer;
private float deltaXMax = 0;
private float deltaYMax = 0;
private float deltaZMax = 0;
private float deltaX = 0;
private float deltaY = 0;
private float deltaZ = 0;
private float vibrateThreshold = 0;
private TextView currentX, currentY, currentZ, maxX, maxY, maxZ;
public Vibrator v;
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup
container, #Nullable Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
View rootView = inflater.inflate(R.layout.sensor, container, false);
initializeViews();
sensorManager = (SensorManager)
getActivity().getSystemService(Context.SENSOR_SERVICE);
if (sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER) != null) {
// success! we have an accelerometer
accelerometer =
sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
sensorManager.registerListener(this, accelerometer,
SensorManager.SENSOR_DELAY_NORMAL);
vibrateThreshold = accelerometer.getMaximumRange() / 2;
} else {
// fai! we dont have an accelerometer!
}
//initialize vibration
v = (Vibrator)
this.getActivity().getSystemService(Context.VIBRATOR_SERVICE);
return rootView;
}
public void initializeViews() {
currentX = (TextView) getView().findViewById(R.id.currentX);
currentY = (TextView) getView().findViewById(R.id.currentY);
currentZ = (TextView) getView().findViewById(R.id.currentZ);
maxX = (TextView) getView().findViewById(R.id.maxX);
maxY = (TextView) getView().findViewById(R.id.maxY);
maxZ = (TextView) getView().findViewById(R.id.maxZ);
}
//onResume() register the accelerometer for listening the events
public void onResume() {
super.onResume();
sensorManager.registerListener(this, accelerometer,
SensorManager.SENSOR_DELAY_NORMAL);
}
//onPause() unregister the accelerometer for stop listening the events
public void onPause() {
super.onPause();
sensorManager.unregisterListener(this);
}
#Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
#Override
public void onSensorChanged(SensorEvent event) {
// clean current values
displayCleanValues();
// display the current x,y,z accelerometer values
displayCurrentValues();
// display the max x,y,z accelerometer values
displayMaxValues();
// get the change of the x,y,z values of the accelerometer
deltaX = Math.abs(lastX - event.values[0]);
deltaY = Math.abs(lastY - event.values[1]);
deltaZ = Math.abs(lastZ - event.values[2]);
// if the change is below 2, it is just plain noise
if (deltaX < 2)
deltaX = 0;
if (deltaY < 2)
deltaY = 0;
if (deltaZ < 2)
deltaZ = 0;
// set the last know values of x,y,z
lastX = event.values[0];
lastY = event.values[1];
lastZ = event.values[2];
vibrate();
}
// if the change in the accelerometer value is big enough, then vibrate!
// our threshold is MaxValue/2
public void vibrate() {
if ((deltaX > vibrateThreshold) || (deltaY > vibrateThreshold) ||
(deltaZ > vibrateThreshold)) {
v.vibrate(50);
}
}
public void displayCleanValues() {
currentX.setText("0.0");
currentY.setText("0.0");
currentZ.setText("0.0");
}
// display the current x,y,z accelerometer values
public void displayCurrentValues() {
currentX.setText(Float.toString(deltaX));
currentY.setText(Float.toString(deltaY));
currentZ.setText(Float.toString(deltaZ));
}
// display the max x,y,z accelerometer values
public void displayMaxValues() {
if (deltaX > deltaXMax) {
deltaXMax = deltaX;
maxX.setText(Float.toString(deltaXMax));
}
if (deltaY > deltaYMax) {
deltaYMax = deltaY;
maxY.setText(Float.toString(deltaYMax));
}
if (deltaZ > deltaZMax) {
deltaZMax = deltaZ;
maxZ.setText(Float.toString(deltaZMax));
}
}
}
My sensor.xml looks like this
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="#ffffff"
android:gravity="center"
android:orientation="vertical"
android:paddingTop="20dp" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:text="Max Acceleration:"
android:textSize="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:text="Max Acceleration: X-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/maxX"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:text="Max Acceleration: Y-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/maxY"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:text="Max Acceleration: Z-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/maxZ"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="20dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:layout_marginTop="30dp"
android:text="Current Acceleration:"
android:textSize="20dp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:gravity="center|top"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:background="#ffffff"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="X-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/currentX"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="15dp" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:background="#ffffff"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="Y-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/currentY"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="15dp" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:background="#ffffff"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="Z-Axis"
android:textSize="15dp" />
<TextView
android:id="#+id/currentZ"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:text="0.0"
android:textSize="15dp" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
my logcat reads the issue
04-19 01:59:56.723 6460-6460/abrunette.blackhawk.edu.pagenavi W/art: Before
Android 4.1, method int
android.support.v7.widget.ListViewCompat.lookForSelectablePosition(int,
boolean) would have incorrectly overridden the package-private method in
android.widget.ListView
04-19 01:59:59.052 6460-6460/abrunette.blackhawk.edu.pagenavi
D/AndroidRuntime: Shutting down VM
04-19 01:59:59.054 6460-6460/abrunette.blackhawk.edu.pagenavi
E/AndroidRuntime: FATAL EXCEPTION: main
Process: abrunette.blackhawk.edu.pagenavi, PID: 6460
Theme: themes:{default=overlay:system, iconPack:system, fontPkg:system,
com.android.systemui=overlay:system,
com.android.systemui.navbar=overlay:system}
java.lang.NullPointerException: Attempt to invoke virtual method
'android.view.View android.view.View.findViewById(int)' on a null object
reference
at abrunette.blackhawk.edu.pagenavi.sensors.initializeViews(sensors.java:61)
at abrunette.blackhawk.edu.pagenavi.sensors.onCreateView(sensors.java:42)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:2080)
at
android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1108)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1290)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:801)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1677)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:536)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

You're calling getView() before the root view is set, before you return from the onCreateView() method.
Try this:
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View rootView = inflater.inflate(R.layout.sensor, container, false);
initializeViews(rootView);
....
}
public void initializeViews(rootView) {
currentX = (TextView) rootView.findViewById(R.id.currentX);
currentY = (TextView) rootView.findViewById(R.id.currentY);
currentZ = (TextView) rootView.findViewById(R.id.currentZ);
maxX = (TextView) rootView.findViewById(R.id.maxX);
maxY = (TextView) rootView.findViewById(R.id.maxY);
maxZ = (TextView) rootView.findViewById(R.id.maxZ);
}

Trying to receive input and display if it's correct or incorrect using ANDROID STUDIO

**activity_main xml**
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.hynes.equations.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Please select what type of equation to solve"
android:id="#+id/textView2" />
<Button
android:text="Check"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignRight="#+id/textView3"
android:layout_alignEnd="#+id/textView3"
android:layout_marginRight="230dp"
android:layout_marginEnd="230dp"
android:id="#+id/button2" />
<TextView
android:layout_centerVertical="true"
android:id="#+id/textView5"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_height="50dp"
android:layout_width="250dp"
android:layout_alignRight="#+id/textView2"
android:layout_alignEnd="#+id/textView2" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:layout_above="#+id/button2"
android:layout_alignRight="#+id/textView5"
android:layout_alignEnd="#+id/textView5"
android:layout_marginRight="170dp"
android:layout_marginEnd="170dp"
android:layout_marginBottom="36dp"
android:id="#+id/editText2" />
<RadioGroup android:id="#+id/radio_group"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<RadioButton
android:text="Addition"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="26dp"
android:id="#+id/addition"
android:onClick="onRadioButtonClicked"/>
<RadioButton
android:text="Subtraction"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/radioButton"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="14dp"
android:id="#+id/subtraction"
android:onClick="onRadioButtonClicked"/>
<RadioButton
android:text="Division"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/radioButton2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="16dp"
android:id="#+id/division"
android:onClick="onRadioButtonClicked"/>
<RadioButton
android:text="Multiplication"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/radioButton3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="20dp"
android:id="#+id/multiplication"
android:onClick="onRadioButtonClicked"/>
</RadioGroup>
`
MAIN ACTIVITY
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.RadioButton;`
import android.widget.RadioGroup;
import android.widget.TextView;
import java.util.Random;
public class MainActivity extends AppCompatActivity {
private int x;
private int y;
public int a;
public int b;
Random random = new Random();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onRadioButtonClicked(View view){
TextView display = (TextView) findViewById(R.id.textView5);
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radio_group);
int btnID = radioGroup.getCheckedRadioButtonId();
switch(btnID){
case R.id.addition:
x = random.nextInt(100);
y = random.nextInt(100);
display.setText(x + "+" + y + "=");
break;
case R.id.subtraction:
x = random.nextInt(100);
y = random.nextInt(100);
display.setText(x + "-" + y + "=");
break;
case R.id.division:
y = random.nextInt(5);
x = y*2;
display.setText(x + "/" + y + "=");
break;
case R.id.multiplication:
x = random.nextInt(10);
y = random.nextInt(10);
display.setText(x + "*" + y + "=");
break;
}
public void onClickCheck(View view){
TextView result = (TextView) findViewById(R.id.textView5);
EditText ans = (EditText) findViewById(R.id.editText2);
RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radio_group);
int btnID = radioGroup.getCheckedRadioButtonId();
if(boolean(RadioButton) findViewById(R.id.addition)) ){
int key = x+y;
int try = 0;
while(!ans.equals(key)){
try = try + 1;
if(try ==0){
result.setText("Incorrect, try again!");
try++
}else if (try>2){
result.setText("Incorrect, the answer is : " + key);
}
if(ans.equals(key)){
result.setText("You are correct !");
}
}
}
}
}
}
}
This is a android studio app that's suppose to randomly generate a math equation upon creation which I've done. There's addition, subtraction, division, and multiplication. My random equation generator works perfectly. But I'm stuck at my onClickCheck method which i want to get the user's answer/input and check to see if it's correct or incorrect and display a message accordingly. My onClick method is wrong but it's a start. I don't know what methods i need to get my code to accept inputs properly. Any help would be appreciated.

It looks like you aren't assigning an OnClickListener to the button.
You need to put:(in onCreate)
Button button = (Button)findViewById(R.id.button2);
button.setOnClickListener(onClickCheck);
or
Button button = (Button)findViewById(R.id.button2);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onClickCheck(view);
}
});
Same for the radio button.

How to set onTouch for a layout(XML) that is added via inflation?

I'm trying to get control buttons to pop on/off screen when the screen is tapped. They will overlay a video. The problem I'm running in to is how to create a touch event for a layout that has been inflated.
The routine is as follows: 1) set initial content to the video; 2) inflate layout(XML), that contains the controls, over the top of the video; 3)(NEED TO DO) create onTouch event for the newly inflated layout that hides/shows the buttons when the user taps the screen.
Layout containing the buttons to show/hide:
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/dpad_grid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:columnCount="3"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true">
<Button
android:id="#+id/tiltUp"
android:background="#drawable/arrow_up"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_row="0"
android:layout_column="1"/>
<Button
android:id="#+id/panRight"
android:background="#drawable/arrow_right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_row="1"
android:layout_column="2"/>
<Button
android:id="#+id/tiltDown"
android:background="#drawable/arrow_down"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:layout_marginBottom="8dp"
android:layout_row="2"
android:layout_column="1"/>
<Button
android:id="#+id/panLeft"
android:background="#drawable/arrow_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_row="1"
android:layout_column="0"/>
</GridLayout>
<Button
android:id="#+id/zoomIn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:background="#drawable/zoom_in"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"/>
<Button
android:id="#+id/zoomOut"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/zoom_out"
android:layout_marginRight="0dp"
android:layout_alignParentBottom="true"
android:layout_toStartOf="#+id/zoomIn"/>
<Button
android:id="#+id/irisDarker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="8dp"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:background="#drawable/iris_darker"/>
<Button
android:id="#+id/irisBrighter"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toEndOf="#+id/irisDarker"
android:background="#drawable/iris_brighter"/>
<Button
android:id="#+id/focusFar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/dpad_grid"
android:layout_marginRight="20dp"
android:layout_alignParentStart="true"
android:background="#drawable/focus_far"/>
<Button
android:id="#+id/focusNear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/focus_near"
android:layout_alignTop="#+id/focusFar"
android:layout_alignStart="#+id/irisBrighter"/>
<Button
android:id="#+id/snapshot"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#drawable/camera"
android:layout_alignEnd="#+id/focusFar"
android:layout_alignParentStart="true"/>
<Button
android:id="#+id/settings"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:background="#drawable/gear"/>
</RelativeLayout>
Code for adding the video and inflating the above layout:
#Override
public void onResume() {
super.onResume();
RelativeLayout.LayoutParams relativeLayoutParams =
new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
mv = new MjpegView(this);
setContentView(mv);
LayoutInflater inflater = getLayoutInflater();
getWindow().addContentView(inflater.inflate(R.layout.screen2, null), relativeLayoutParams);
Thanks for any help!
EDIT: here's what I'm currently working with. Why does my code not get into the touch event when I touch the screen?
LayoutInflater inflater = getLayoutInflater();
control_buttons = inflater.inflate(R.layout.screen2, null);
control_buttons.setOnTouchListener(new View.OnTouchListener() {
boolean gone = true;
#Override
public boolean onTouch(View v, MotionEvent event) {
System.out.println("In OnTouch");
if ( (event.getAction() == MotionEvent.ACTION_DOWN) && (gone == true) ){
getWindow().addContentView(control_buttons, relativeLayoutParams);
gone = false;
return true;
}
else if ((event.getAction() == MotionEvent.ACTION_DOWN) && (gone == false)) {
v.setVisibility(View.GONE);
gone = true;
return true;
}
return false;
}
});

This may work better for you. This will only work if the children in your RelativeLayout are either Buttons or GridLayouts that contain Buttons.
RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.yourId);
relativeLayout.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_DOWN) {
for(int i = 0; i < relativeLayout.getChildCount(); i++) {
if(relativeLayout.getChildAt(i) instanceof Button) {
Button temp = (Button) relativeLayout.getChildAt(i);
if(temp.getVisibility() == View.INVISIBLE) {
temp.setVisibility(View.VISIBLE);
} else {
temp.setVisibility(View.INVISIBLE);
}
} else if(relativeLayout.getChildAt(i) instanceof GridLayout) {
GridLayout temp = (GridLayout) relativeLayout.getChildAt(i);
for(int g = 0; g < temp.getChildCount(); g++) {
Button tempButton = (Button) temp.getChildAt(g);
if(tempButton.getVisibility() == View.INVISIBLE) {
tempButton.setVisibility(View.VISIBLE);
} else {
temp.setVisibility(View.INVISIBLE);
}
}
}
}
}
return false;
}
});

Android studio, android scrolling down and up enable

I want to add something like scrolling from top to bottom and vice versa but i don't know how to add this function, i was trying with ScrollView but that gave nothing.
MainActivity.java :
package com.example.marek.przelicznikpaliw;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
private EditText a1;
private EditText b1;
private EditText c1;
private EditText d1;
private TextView tv;
private TextView tv2;
private TextView tv3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//pola
a1 = (EditText) findViewById(R.id.cel);
b1 = (EditText) findViewById(R.id.pali);
c1 = (EditText) findViewById(R.id.litr);
d1 = (EditText) findViewById(R.id.koszt);
// wynik
tv = (TextView) findViewById(R.id.wynikKoszt);
tv2 = (TextView) findViewById(R.id.wynikKilometry);
tv3 = (TextView) findViewById(R.id.wynikKosztx2);
findViewById(R.id.button).setOnClickListener(onClickListener);
findViewById(R.id.button2).setOnClickListener(onClickListener);
}
private View.OnClickListener onClickListener = new View.OnClickListener() {
#Override
public void onClick(View view) {
float a = 0;
float b = 0;
float c = 0;
float d = 0;
float wynik = 0;
float wynik2 = 0;
float wynik3 = 0;
try {
a = Float.parseFloat(a1.getText().toString());
b = Float.parseFloat(b1.getText().toString());
c = Float.parseFloat(c1.getText().toString());
d = Float.parseFloat(d1.getText().toString());
} catch (Exception e) {
e.printStackTrace();
}
if (view.getId() == R.id.button) {
wynik = ((b / 100) * a) * c;
tv.setText(String.valueOf(wynik));
wynik2 = (((b / 100) * a) * c)*2;
tv3.setText(String.valueOf(wynik2));
} else if (view.getId() == R.id.button2) {
wynik3 = d / ((b * c) / 100);
tv2.setText(String.valueOf(wynik3));
}
}
};
}
activity_main.xml :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity"
android:orientation="vertical"
android:onClick="onButtonClick"
android:weightSum="1">
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/cel"
android:hint="Ilosc km do celu to:"
android:layout_centerHorizontal="true"
android:numeric="integer|decimal" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/pali"
android:hint="Ile litrow pali na 100km"
android:layout_centerHorizontal="true"
android:layout_below="#+id/cel"
android:numeric="integer|decimal" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/litr"
android:hint="Cena za litr"
android:layout_below="#+id/pali"
android:layout_centerHorizontal="true"
android:numeric="integer|decimal" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/button"
android:layout_below="#+id/litr"
android:layout_centerHorizontal="true"
android:hint="Licz zlotowki"
android:text="Licz koszty"
android:clickable="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/koszt"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:hint="Za ile zl zostalo zatankowane gaz/paliwo?"
android:numeric="integer|decimal" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Licz kilometry"
android:id="#+id/button2"
android:layout_below="#+id/koszt"
android:layout_centerHorizontal="true"
android:clickable="true" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Dojedziesz w wybrany cel za(zł):"
android:id="#+id/textView" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="#string/emptystring"
android:id="#+id/wynikKoszt"
android:textIsSelectable="false" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Oraz spowrotem za(zł):"
android:id="#+id/textView2" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/emptystring"
android:id="#+id/wynikKosztx2"
android:layout_weight="0.06" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Za tę kwotę przejedziesz(km):"
android:id="#+id/textView3" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="#string/emptystring"
android:id="#+id/wynikKilometry" />

android cannot be resolved or is not a field error

I created a tictactoe android game, and when i try to link the strings.xml file to activity.java I receive an error.
Here is my activity.java
package com.tictactoeoyna.www;
import android.R;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class TicTacToeOynaActivity extends Activity {
private TicTacToeOyun mGame;
private Button mBoardButtons[];
private TextView mInfoTextView;
private TextView mHumanCount;
private TextView mTieCount;
private TextView mAndroidCount;
private int mHumanCounter = 0;
private int mTieCounter = 0;
private int mAndroidCounter = 0;
private boolean mHumanFirst = true;
private boolean mGameOver = false;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mBoardButtons = new Button[TicTacToeOyun.getBOARD_SIZE()];
mBoardButtons[0] = (Button) findViewById(R.id.one);// it should be blue but not
mBoardButtons[1] = (Button) findViewById(R.id.two);//same
mBoardButtons[2] = (Button) findViewById(R.id.three);
mBoardButtons[3] = (Button) findViewById(R.id.four);
mBoardButtons[4] = (Button) findViewById(R.id.five);
mBoardButtons[5] = (Button) findViewById(R.id.six);
mBoardButtons[6] = (Button) findViewById(R.id.seven);
mBoardButtons[7] = (Button) findViewById(R.id.eight);
mBoardButtons[8] = (Button) findViewById(R.id.nine);//until here
mInfoTextView = (TextView) findViewById(R.id.information);
mHumanCount = (TextView) findViewById(R.id.humanCount);
mTieCount = (TextView) findViewById(R.id.tiesCount);
mAndroidCount = (TextView) findViewById(R.id.androidCount);
mHumanCount.setText(Integer.toString(mHumanCounter));
mTieCount.setText(Integer.toString(mTieCounter));
mAndroidCount.setText(Integer.toString(mAndroidCounter));
mGame = new TicTacToeOyun();
startNewGame();
}
private void startNewGame()
{
mGame.clearBoard();
for (int i = 0; i < mBoardButtons.length; i++)
{
mBoardButtons[i].setText("");
mBoardButtons[i].setEnabled(true);
mBoardButtons[i].setOnClickListener(new ButtonClickListener(i));
}
if (mHumanFirst)
{
mInfoTextView.setText(R.string.first_human);
mHumanFirst = false;
}
else
{
mInfoTextView.setText(R.string.turn_computer);
int move = mGame.getComputerMove();
setMove(mGame.ANDROID_PLAYER, move);
mHumanFirst = true;
}
}
private class ButtonClickListener implements View.OnClickListener
{
int location;
public ButtonClickListener(int location)
{
this.location = location;
}
public void onClick(View view)
{
if (!mGameOver)
{
if (mBoardButtons[location].isEnabled())
{
setMove(mGame.HUMAN_PLAYER, location);
int winner = mGame.checkForWinner();
if (winner == 0)
{
mInfoTextView.setText(R.string.turn_computer);
int move = mGame.getComputerMove();
setMove(mGame.ANDROID_PLAYER, move);
winner = mGame.checkForWinner();
}
if (winner == 0)
mInfoTextView.setText(R.string.turn_human);
else if (winner == 1)
{
mInfoTextView.setText(R.string.result_tie);
mTieCounter++;
mTieCount.setText(Integer.toString(mTieCounter));
mGameOver = true;
}
else if (winner == 2)
{
mInfoTextView.setText(R.string.result_human_wins);
mHumanCounter++;
mHumanCount.setText(Integer.toString(mHumanCounter));
mGameOver = true;
}
else
{
mInfoTextView.setText(R.string.result_android_wins);
mAndroidCounter++;
mAndroidCount.setText(Integer.toString(mAndroidCounter));
mGameOver = true;
}
}
}
}
}
private void setMove(char player, int location)
{
mGame.setMove(player, location);
mBoardButtons[location].setEnabled(false);
mBoardButtons[location].setText(String.valueOf(player));
if (player == mGame.HUMAN_PLAYER)
mBoardButtons[location].setTextColor(Color.GREEN);
else
mBoardButtons[location].setTextColor(Color.RED);
}
}
The error is on one, two, three...nine and information count, human count etc. Here is my fragment file, so why can't I see one, two, three....nine labeled blue? Why is it not recognized? What have I done wrong ? I received the errors after findviewbyid.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TableLayout
android:id="#+id/playArea"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<Button
android:id="one"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/one"
android:textSize="70dp" />
<Button
android:id="#+id/two"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/two"
android:textSize="70dp" />
<Button
android:id="#+id/three"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/three"
android:textSize="70dp" />
</TableRow>
<TableRow
android:id="#+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<Button
android:id="#+id/four"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/four"
android:textSize="70dp" />
<Button
android:id="#+id/five"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/five"
android:textSize="70dp" />
<Button
android:id="#+id/six"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/six"
android:textSize="70dp" />
</TableRow>
<TableRow
android:id="#+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<Button
android:id="#+id/seven"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/seven"
android:textSize="70dp" />
<Button
android:id="#+id/eight"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/eight"
android:textSize="70dp" />
<Button
android:id="#+id/nine"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="#string/nine"
android:textSize="70dp" />
</TableRow>
</TableLayout>
<TextView
android:id="#+id/information"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center_horizontal"
android:text="#string/info"
android:textSize="25dp" />
<TableLayout
android:id="#+id/tableLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TableRow
android:id="#+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:gravity="center_horizontal" >
<TextView
android:id="#+id/human"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/human" />
<TextView
android:id="#+id/humanCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp" />
<TextView
android:id="#+id/ties"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/ties" />
<TextView
android:id="#+id/tiesCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp" />
<TextView
android:id="#+id/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/android" />
<TextView
android:id="#+id/androidCount"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</TableRow>
</TableLayout>
</LinearLayout>

import com.tictactoeoyna.www.R;
and removeimport android.R;

When you got this type of error at anywhere and you have import android.R; then just remove import android.R;.

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Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Get button coordinates and detect if finger is over them - Android - java

karioki 's solution works well. In order to make it work even when we start the move from inside one of the buttons, just add android:clickable="false" for every button in xml.

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