Develop Reference

Exit to a different Activity when game loop ends?

I want my game to exit and go to a separate Activity when the user collides. For example, I want it to go back to my main menu. I've tried adding a Button, new intent method etc and these don't work. I can't find the answer anywhere and i'm not knowledgeable enough to do this as I'm learning. I've trawled the internet but nothing has really helped. Any advice would be awesome. My idea was to change the newgame() method to exit the game?
import android.content.Context;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import java.util.ArrayList;
import java.util.Random;
public class GamePanel extends SurfaceView implements SurfaceHolder.Callback {
private Threading threading;
private BackgroundImage bg;
public static final int WIDTH = 856;
public static final int HEIGHT = 480;
public static final int MovementSpeed = -8;
private Player player;
private ArrayList<BorderTop> borderTop;
private ArrayList<BorderBottom> borderBottom;
private ArrayList<Smokepuff> smoke;
private ArrayList<Missile> missiles;
private int MaximumBorderHeight;
private int MinimumBorderHeight;
private boolean topDown = true;
private boolean botDown = true;
private int progressDifficulty = 20;
private Random rand = new Random();
private boolean newGameCreated;
private long smokeStartTime;
private long missileStartTime;
public GamePanel(Context context) {
super(context);
getHolder().addCallback(this);
setFocusable(true);
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
bg = new BackgroundImage(BitmapFactory.decodeResource(getResources(), R.drawable.grassbg1));
player = new Player(BitmapFactory.decodeResource(getResources(), R.drawable.smallcatfinal), 40, 44, 1);
borderTop = new ArrayList<BorderTop>();
borderBottom = new ArrayList<BorderBottom>();
smoke = new ArrayList<Smokepuff>();
missiles = new ArrayList<Missile>();
smokeStartTime= System.nanoTime();
missileStartTime = System.nanoTime();
threading = new Threading(getHolder(), this);
threading.setRunning(true);
threading.start();
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
boolean retry = true;
int counter = 0;
while (retry && counter < 1000) {
counter++;
try {
threading.setRunning(false);
threading.join();
retry = false;
threading = null;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (!player.getPlaying()) {
player.setPlaying(true);
player.setUp(true);
}else{
player.setUp(true);
}
return true;
}
if (event.getAction() == MotionEvent.ACTION_UP) {
player.setUp(false);
return true;
}
return super.onTouchEvent(event);
}
public void update() {
if (player.getPlaying()) {
bg.update();
player.update();
MaximumBorderHeight = 30 + player.getScore() / progressDifficulty;
if (MaximumBorderHeight > HEIGHT / 4) MaximumBorderHeight = HEIGHT / 4;
MinimumBorderHeight = 5 + player.getScore() / progressDifficulty;
//check bottom border collision
for (int i = 0; i < borderBottom.size(); i++) {
if (collision(borderBottom.get(i), player))
player.setPlaying(false);
}
//check top border collision
for (int i = 0; i < borderTop.size(); i++) {
if (collision(borderTop.get(i), player))
player.setPlaying(false);
}
this.updateTop();
this.updateBottom();
long missileElapsed = (System.nanoTime() - missileStartTime) / 1000000;
if (missileElapsed > (2000 - player.getScore() / 4)) {
//first missile always goes down the middle
if (missiles.size() == 0) {
missiles.add(new Missile(BitmapFactory.decodeResource(getResources(), R.drawable.
missile), WIDTH + 10, HEIGHT / 2, 45, 15, player.getScore(), 13));
} else {
missiles.add(new Missile(BitmapFactory.decodeResource(getResources(), R.drawable.missile),
WIDTH + 10, (int) (rand.nextDouble() * (HEIGHT - (MaximumBorderHeight * 2)) + MaximumBorderHeight), 45, 15, player.getScore(), 13));
}
//reset timer
missileStartTime = System.nanoTime();
}
//loop through every missile and check collision and remove
for (int i = 0; i < missiles.size(); i++) {
//update missile
missiles.get(i).update();
if (collision(missiles.get(i), player)) {
missiles.remove(i);
player.setPlaying(false);
break;
}
//remove missile if it is way off the screen
if (missiles.get(i).getX() < -100) {
missiles.remove(i);
break;
}
}
long elapsed = (System.nanoTime() - smokeStartTime) / 1000000;
if (elapsed > 120) {
smoke.add(new Smokepuff(player.getX(), player.getY() + 10));
smokeStartTime = System.nanoTime();
}
for (int i = 0; i < smoke.size(); i++) {
smoke.get(i).update();
if (smoke.get(i).getX() < -10) {
smoke.remove(i);
}
}
} else {
newGameCreated = false;
if (!newGameCreated) {
newGame();
}
}
public boolean collision (GameObject a, GameObject b)
{
if (Rect.intersects(a.getRectangle(), b.getRectangle())) {
return true;
}
return false;
}
#Override
public void draw(Canvas canvas) {
super.draw(canvas);
final float ScaleX = (float) getWidth() / WIDTH*1.f;
final float ScaleY = (float) getHeight() / HEIGHT*1.f;
if (canvas != null) {
final int savedState = canvas.save();
canvas.scale(ScaleX, ScaleY);
bg.draw(canvas);
player.draw(canvas);
for(Smokepuff sp: smoke)
{
sp.draw(canvas);
}
//draw missiles
for(Missile m: missiles)
{
m.draw(canvas);
}
for(BorderTop bt: borderTop)
{
bt.draw(canvas);
}
for(BorderBottom bb: borderBottom)
{
bb.draw(canvas);
}
canvas.restoreToCount(savedState);
}
}
public void updateBottom() {
if (player.getScore() % 40 == 0) {
borderBottom.add(new BorderBottom(BitmapFactory.decodeResource(getResources(), R.drawable.brick),
borderBottom.get(borderBottom.size() - 1).getX() + 20, (int) ((rand.nextDouble()
* MaximumBorderHeight) + (HEIGHT - MaximumBorderHeight))));
}
//update bottom border
for (int i = 0; i < borderBottom.size(); i++) {
borderBottom.get(i).update();
//if border is moving off screen, remove it and add a corresponding new one
if (borderBottom.get(i).getX() < -20) {
borderBottom.remove(i);
//determine if border will be moving up or down
if (borderBottom.get(borderBottom.size() - 1).getY() <= HEIGHT - MaximumBorderHeight) {
botDown = true;
}
if (borderBottom.get(borderBottom.size() - 1).getY() >= HEIGHT - MinimumBorderHeight) {
botDown = false;
}
if (botDown) {
borderBottom.add(new BorderBottom(BitmapFactory.decodeResource(getResources(),R.drawable.brick
), borderBottom.get(borderBottom.size() - 1).getX() + 20, borderBottom.get(borderBottom.size() - 1
).getY() + 1));
} else {
borderBottom.add(new BorderBottom(BitmapFactory.decodeResource(getResources(), R.drawable.brick
), borderBottom.get(borderBottom.size() - 1).getX() + 20, borderBottom.get(borderBottom.size() - 1
).getY() - 1));
}
}
}
}
public void updateTop()
{
if (player.getScore() % 50 == 0) {
borderTop.add(new BorderTop(BitmapFactory.decodeResource(getResources(), R.drawable.brick), borderTop.get(borderTop.size() - 1).getX() + 20, 0, (int) ((rand.nextDouble() * (MaximumBorderHeight)) + 1)));
}
for (int i = 0; i < borderTop.size(); i++) {
borderTop.get(i).update();
if (borderTop.get(i).getX() < -20) {
borderTop.remove(i);
if (borderTop.get(borderTop.size() - 1).getHeight() >= MaximumBorderHeight) {
topDown = false;
}
if (borderTop.get(borderTop.size() - 1).getHeight() <= MinimumBorderHeight) {
topDown = true;
}
if (topDown) {
borderTop.add(new BorderTop(BitmapFactory.decodeResource(getResources(), R.drawable.brick), borderTop.get(borderTop.size() - 1).getX() + 20, 0, borderTop.get(borderTop.size() - 1).getHeight() + 1));
} else {
borderTop.add(new BorderTop(BitmapFactory.decodeResource(getResources(), R.drawable.brick), borderTop.get(borderTop.size() - 1).getX() + 20, 0, borderTop.get(borderTop.size() - 1).getHeight() - 1));
}
}
}
}
public void newGame() {
borderBottom.clear();
borderTop.clear();
missiles.clear();
smoke.clear();
MinimumBorderHeight = 5;
MaximumBorderHeight = 30;
player.resetDY();
player.resetScore();
player.setY(HEIGHT/2);
//create initial borders
//initial top border
for(int i = 0; i*20<WIDTH+40;i++)
{
// first top border create
if(i==0)
{borderTop.add(new BorderTop(BitmapFactory.decodeResource(getResources(),R.drawable.brick
),i*20,0, 10));
}
else
{
borderTop.add(new BorderTop(BitmapFactory.decodeResource(getResources(),R.drawable.brick
),i*20,0, borderTop.get(i-1).getHeight()+1));
}
}
//initial bottom border
for(int i = 0; i*20<WIDTH+40; i++)
{
//first border ever created
if(i==0)
{
borderBottom.add(new BorderBottom(BitmapFactory.decodeResource(getResources(),R.drawable.brick)
,i*20,HEIGHT - MinimumBorderHeight));
}
//adding borders until the initial screen is filed
else
{
borderBottom.add(new BorderBottom(BitmapFactory.decodeResource(getResources(), R.drawable.brick),
i * 20, borderBottom.get(i - 1).getY() - 1));
}
}
newGameCreated = true;
}
}

How to add multiple pin marker on image dyanamically

I want to put marker on image with below functionality
-Dynamically adding multiple markers on image with zoom and scroll functionality on image.
-Blink animation on marker after added on image.
-Marker can be click-able and drag & drop on image.
-Marker's x & y position on image to sync same with other devices
I have used https://github.com/davemorrissey/subsampling-scale-image-view library
Java Code :
public class PinMarkerView extends SubsamplingScaleImageView implements View.OnTouchListener {
private PointF sPin;
private Bitmap pin;
private int resId;
public float vX;
public float vY;
private PointF vPrevious;
private PointF vStart;
private boolean drawing = false;
private boolean markerTouch = false;
private int strokeWidth;
private ArrayList<MapPins> allPins = new ArrayList<MapPins>();
private ArrayList<DrawPins> drawnPins = new ArrayList<DrawPins>();
public PinView(Context context) {
this(context, null);
}
public PinView(Context context, AttributeSet attr) {
super(context, attr);
// initialise();
}
public void setPin(PointF sPin, #DrawableRes int resid, String extras) {
MapPins mapPins = new MapPins();
mapPins.setPointF(sPin);
mapPins.setResId(resid);
mapPins.setExtrasData(extras);
mapPins.setX(sPin.x);
mapPins.setY(sPin.y);
allPins.add(mapPins);
//this.sPin = sPin;
// this.resId = resid;
initialise();
invalidate();
}
public PointF getPin() {
return sPin;
}
public Bitmap getMarker() {
return pin;
}
private void initialise() {
setOnTouchListener(this);
float density = getResources().getDisplayMetrics().densityDpi;
strokeWidth = (int) (density / 60f);
for (int i = 0; i < allPins.size(); i++) {
MapPins mapPins = allPins.get(i);
Bitmap localpin = BitmapFactory.decodeResource(this.getResources(), mapPins.getResId());
float w = (density / 100f) * localpin.getWidth();
float h = (density / 100f) * localpin.getHeight();
//pin = Bitmap.createScaledBitmap(pin, (int) w, (int) h, true);
pin = Bitmap.createScaledBitmap(localpin, localpin.getWidth(), localpin.getHeight(), true);
mapPins.setCreatedBitmap(pin);
allPins.set(i, mapPins);
//-------
}
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
// Don't draw pin before image is ready so it doesn't move around during setup.
if (!isReady()) {
return;
}
Paint paint = new Paint();
paint.setAntiAlias(true);
for (int i = 0; i < allPins.size(); i++) {
MapPins mapPins = allPins.get(i);
if (mapPins.getPointF() != null && mapPins.getCreatedBitmap() != null) {
PointF vPin = sourceToViewCoord(mapPins.getPointF());
vX = vPin.x - (mapPins.getCreatedBitmap().getWidth() / 2);
vY = vPin.y - mapPins.getCreatedBitmap().getHeight();
canvas.drawBitmap(mapPins.getCreatedBitmap(), vX, vY, paint);
}
}
}
#Override
public boolean onTouch(View view, MotionEvent motionEvent) {
setMaxScale(5f);
return false;
}
#Override
public boolean onTouchEvent(#NonNull MotionEvent event) {
/* if (isZoomEnabled()) {
return super.onTouchEvent(event);
}*/
boolean consumed = false;
int touchCount = event.getPointerCount();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_POINTER_1_DOWN:
vStart = new PointF(event.getX(), event.getY());
vPrevious = new PointF(event.getX(), event.getY());
getPinIdByPoint(vStart, viewToSourceCoord(event.getX(), event.getY()));
handleActionDown((int) event.getX(), (int) event.getY());
break;
case MotionEvent.ACTION_POINTER_2_DOWN:
// Abort any current drawing, user is zooming
vStart = null;
vPrevious = null;
break;
case MotionEvent.ACTION_MOVE:
if (markerTouch) {
setPanEnabled(false);
PointF sCurrentF = viewToSourceCoord(event.getX(), event.getY());
PointF sCurrent = new PointF(sCurrentF.x, sCurrentF.y);
PointF sStart = vStart == null ? null : new PointF(viewToSourceCoord(vStart).x, viewToSourceCoord(vStart).y);
if (touchCount == 1 && vStart != null) {
float vDX = Math.abs(event.getX() - vPrevious.x);
float vDY = Math.abs(event.getY() - vPrevious.y);
if (vDX >= strokeWidth * 5 || vDY >= strokeWidth * 5) {
if (sPin == null) {
sPin = sStart;
}
sPin = sCurrent;
vPrevious.x = event.getX();
vPrevious.y = event.getY();
drawing = true;
}
consumed = true;
invalidate();
} else if (touchCount == 1) {
// Consume all one touch drags to prevent odd panning effects handled by the superclass.
consumed = true;
}
} else {
return super.onTouchEvent(event);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
invalidate();
setPanEnabled(true);
drawing = false;
markerTouch = false;
vPrevious = null;
vStart = null;
}
// Use parent to handle pinch and two-finger pan.
return consumed || super.onTouchEvent(event);
}
public void handleActionDown(int eventX, int eventY) {
if (eventX >= (sPin.x - pin.getWidth()) && (eventX <= (sPin.x + pin.getWidth()))) {
if (eventY >= (sPin.y - pin.getHeight()) && (sPin.y <= (sPin.y + pin.getHeight()))) {
markerTouch = true;
} else {
markerTouch = false;
}
} else {
markerTouch = false;
}
}
public int getPinIdByPoint(PointF tappedCoordinate, PointF deeplinkCoordinate) {
for (int i = allPins.size() - 1; i >= 0; i--) {
MapPins dPin = allPins.get(i);
int blockWidth = dPin.getCreatedBitmap().getWidth();
int blockHeight = dPin.getCreatedBitmap().getHeight();
int deeplinkX = (int) (deeplinkCoordinate.x - (dPin.getCreatedBitmap().getWidth() / 2));
int deeplinkY = (int) (deeplinkCoordinate.y - dPin.getCreatedBitmap().getHeight());
// center coordinate -/+ blockWidth actually sets touchable area to 2x icon size
if (tappedCoordinate.x >= deeplinkX - blockWidth && tappedCoordinate.x <= deeplinkX + blockWidth &&
tappedCoordinate.y >= deeplinkY - blockHeight && tappedCoordinate.y <= deeplinkY + blockHeight) {
sPin = dPin.getPointF();
pin = dPin.getCreatedBitmap();
return dPin.getId();
}
}
return -1; //negative no means no pin selected
}
}
Currently, I am able to add multiple marker, but I am facing issue of marker click and dragging on image.

Issue with CustomView

I am creating an application. If the custom View goes off the screen, a method is called. Here is my code for the custom View.
public class CustomView extends View {
private boolean bubbleOver;
private static final int BITMAP_SIZE = 64;
private static final int REFRESH_RATE = 40;
private final Paint mPainter = new Paint();
private ScheduledFuture<?> mMoverFuture;
private int mScaledBitmapWidth;
private Bitmap mScaledBitmap;
// location, speed and direction of the bubble
private float mXPos, mYPos, mDx, mDy, mRadius, mRadiusSquared;
private long mRotate, mDRotate;
CustomView (Context context, float x, float y) {
super (context);
// Create a new random number generator to randomize size, rotation, speed and direction
Random r = new Random ();
// Creates the bubble bitmap for this BubbleView
createScaledBitmap (r);
// Radius of the Bitmap
mRadius = mScaledBitmapWidth / 2;
mRadiusSquared = mRadius * mRadius;
// Adjust position to center the bubble under user's finger
mXPos = x - mRadius;
mYPos = y - mRadius;
// Set the BubbleView's speed and direction
setSpeedAndDirection(r);
// Set the BubbleView's rotation
setRotation(r);
mPainter.setAntiAlias(true);
}
private void setRotation(Random r) {
if (speedMode == RANDOM) {
// TODO - set rotation in range [1..3]
mDRotate = r.nextInt (3) + 1;
} else {
mDRotate = 0;
}
}
private void setSpeedAndDirection(Random r) {
// Used by test cases
switch (speedMode) {
case SINGLE:
mDx = 20;
mDy = 20;
break;
case STILL:
// No speed
mDx = 0;
mDy = 0;
break;
default:
// Limit movement speed in the x and y direction to [-3..3] pixels per movement.
mDx = r.nextFloat() * 6.0f - 3.0f;
mDy = r.nextFloat() * 6.0f - 3.0f;
}
}
private void createScaledBitmap (Random r) {
if (speedMode != RANDOM) {
mScaledBitmapWidth = BITMAP_SIZE * 3;
} else {
mScaledBitmapWidth = (r.nextInt(3) + 1) * BITMAP_SIZE;
}
mScaledBitmap = Bitmap.createScaledBitmap(mBitmap, mScaledBitmapWidth, mScaledBitmapWidth, true);
}
// Start moving the BubbleView & updating the display
private void start () {
// Creates a WorkerThread
ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
// Execute the run() in Worker Thread every REFRESH_RATE milliseconds. Save reference to this job in mMoverFuture
mMoverFuture = executor.scheduleWithFixedDelay(new Runnable() {
#Override
public void run() {
if (moveWhileOnScreen()) {
stop (false);
} else {
BubbleView.this.postInvalidate();
}
}
}, 0, REFRESH_RATE, TimeUnit.MILLISECONDS);
}
// Returns true if the BubbleView intersects position (x,y)
private synchronized boolean intersects(float x, float y) {
// TODO - Return true if the BubbleView intersects position (x,y)
if ((mXPos <= x) && (x <= mXPos + mScaledBitmapWidth) && (mYPos <= y) && (y <= mYPos + mScaledBitmapWidth)) {
return true;
}
return false;
}
// Cancel the Bubble's movement. Remove Bubble from mFrame.
// Play pop sound if the BubbleView was popped
private void stop (final boolean wasPopped) {
if (null != mMoverFuture && !mMoverFuture.isDone()) {
mMoverFuture.cancel(true);
}
// This work will be performed on the UI Thread
mFrame.post(new Runnable() {
#Override
public void run() {
mFrame.removeView(BubbleView.this);
if (wasPopped) {
mSoundPool.play(mSoundID, mStreamVolume, mStreamVolume, 1, 0, 1f);
}
}
});
}
// Change the Bubble's speed and direction
private synchronized void deflect(float velocityX, float velocityY) {
mDx = velocityX / REFRESH_RATE;
mDy = velocityY / REFRESH_RATE;
}
// Draw the Bubble at its current location
#Override
protected synchronized void onDraw(Canvas canvas) {
canvas.save();
mRotate += mDRotate;
canvas.rotate(mRotate, mXPos + (mScaledBitmapWidth / 2), mYPos + (mScaledBitmapWidth / 2));
canvas.drawBitmap(mScaledBitmap, mXPos, mYPos, mPainter);
canvas.restore();
}
// Returns true if the BubbleView is still on the screen after the move operation
private synchronized boolean moveWhileOnScreen() {
mXPos += mDx;
mYPos += mDy;
return isOutOfView();
}
// Return true if the BubbleView is off the screen after the move operation
private boolean isOutOfView() {
if ((mXPos + mDisplayWidth < 0) || (mYPos + mDisplayHeight < 0) || (mXPos> mDisplayWidth) || (mYPos > mDisplayHeight)) {
loseGame();
return true;
}
return false;
}
}
When the View goes off the screen, loseGame() is not called. Only if another CustomView is created, loseGame() is called.

You have wrong sum to check, try with mScaledBitmapWidth not the mDisplayWidth.
if ((mXPos + mScaledBitmapWidth < 0)
|| (mYPos + mScaledBitmapWidth < 0)
|| (mXPos> mDisplayWidth)
|| (mYPos > mDisplayHeight)
{
loseGame();
return true;
}

Android Selectable TextViewer SetHighlightedText

I am Using SelectableTextview in my e-book app where i want to highlight any text from the book. The text is being highlighted by SelectableTextViewer class, and i am saving the selected text in database. Now i want when the user open the e-book next time the same text should be highlighted as it is. But there is no method of setting selected text. How can i solve this problem. Please help me
SelectableTextviewer.java
public class SelectableTextViewer extends RelativeLayout {
private ImageView imgStartSelect;
public static int mStartSelect = -1;
private ImageView imgEndSelect;
public static int mEndSelect = -1;
private int mImgWidth = 40;
private int mImgHeight = 50;
private TextView textView;
private View mCurrentControlFocused;
public static interface ISelectableTextViewerListener {
public void updateSelection(SelectableTextViewer selectableTextViewer);
public void endSelectingText(SelectableTextViewer selectableTextViewer,
String selectedText);
public void stopSelectingText(
SelectableTextViewer selectableTextViewer, String selectedText);
}
private ISelectableTextViewerListener selectableTextViewerListener;
public static BackgroundColorSpan spanBackgroundColored;
public void setSelectableTextViewerListener(
ISelectableTextViewerListener selectableTextViewerListener) {
this.selectableTextViewerListener = selectableTextViewerListener;
}
public SelectableTextViewer(Context context) {
super(context);
if (!isInEditMode()) {
this.initControls();
}
}
public SelectableTextViewer(Context context, AttributeSet attrs) {
super(context, attrs);
if (!isInEditMode()) {
this.initControls();
}
}
public SelectableTextViewer(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
if (!isInEditMode()) {
this.initControls();
}
}
private void initControls() {
this.spanBackgroundColored = new BackgroundColorSpan(Color.YELLOW);
this.textView = new TextView(getContext());
this.addView(textView);
this.setOnLongClickListener(new OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
showSelectionControls();
int[] location = { 0, 0 };
getLocationOnScreen(location);
System.out.println("getLocationOnScreen:" + location[0] + "\t"
+ location[1]);
return false;
}
});
this.createImgControllersForSelection();
}
protected void disallowIntercept(Boolean disallowIntercept) {
this.getParent().requestDisallowInterceptTouchEvent(disallowIntercept);
}
protected void createImgControllersForSelection() {
this.imgStartSelect = new ImageView(getContext());
this.imgEndSelect = new ImageView(getContext());
this.imgStartSelect.setImageResource(R.drawable.cursor);
this.imgEndSelect.setImageResource(R.drawable.cursor);
this.addView(imgStartSelect, mImgWidth, mImgHeight);
this.addView(imgEndSelect, mImgWidth, mImgHeight);
OnClickListener onClickForChangeFocus = new OnClickListener() {
#Override
public void onClick(View v) {
mCurrentControlFocused = v;
}
};
this.imgEndSelect.setOnClickListener(onClickForChangeFocus);
this.imgStartSelect.setOnClickListener(onClickForChangeFocus);
OnTouchListener onTouchSelectionControl = new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
disallowIntercept(true);
mCurrentControlFocused = v;
int eid = event.getAction();
switch (eid) {
case MotionEvent.ACTION_MOVE:
int[] location = { 0, 0 };
getLocationOnScreen(location);
LayoutParams mParams = (LayoutParams) v
.getLayoutParams();
int x = (int) event.getRawX();
int y = (int) event.getRawY();
// + insideScrollView.getScrollY();
mParams.leftMargin = x - mImgWidth / 2 - location[0];
if (x <= 0) {
mParams.leftMargin = mImgWidth;
} else if (x > (getMeasuredWidth() - mImgWidth)) {
mParams.leftMargin = getMeasuredWidth() - mImgWidth;
}
// TODO Must calculate all padding control
mParams.topMargin = (int) (y - (location[1] + mImgHeight * 1.5f));
if (mParams.topMargin <= 1) {
mParams.topMargin = 1;
}
v.setLayoutParams(mParams);
updateSelectionByMovementImgControls(mParams.leftMargin,
mParams.topMargin);
break;
case MotionEvent.ACTION_UP:
if (selectableTextViewerListener != null) {
selectableTextViewerListener.endSelectingText(
SelectableTextViewer.this, getSelectedText());
}
break;
default:
disallowIntercept(false);
break;
}
return true;
}
};
this.imgEndSelect.setOnTouchListener(onTouchSelectionControl);
this.imgStartSelect.setOnTouchListener(onTouchSelectionControl);
this.imgEndSelect.setVisibility(View.GONE);
this.imgStartSelect.setVisibility(View.GONE);
}
public void updateSelectionByMovementImgControls(int x, int y) {
if (mCurrentControlFocused.equals(imgStartSelect)) {
this.mStartSelect = getOffsetByCoordinates(x + mImgWidth / 2, y);
} else if (mCurrentControlFocused.equals(imgEndSelect)) {
this.mEndSelect = getOffsetByCoordinates(x + mImgWidth / 2, y);
}
updateSelectionSpan();
}
protected Layout updateSelectionSpan() {
Layout retLayout = this.textView.getLayout();
if (this.mStartSelect > -1 && this.mEndSelect > -1) {
if (this.mStartSelect > this.mEndSelect) {
int temp = mEndSelect;
this.mEndSelect = mStartSelect;
this.mStartSelect = temp;
showSelectionControls();
}
SpannedString spannable = (SpannedString) this.textView.getText();
SpannableStringBuilder ssb = new SpannableStringBuilder(spannable);
ssb.removeSpan(this.spanBackgroundColored);
ssb.setSpan(this.spanBackgroundColored, this.mStartSelect,
this.mEndSelect, Spannable.SPAN_USER);
this.textView.setText(ssb);
this.textView.requestLayout();
if (this.selectableTextViewerListener != null) {
this.selectableTextViewerListener.updateSelection(this);
}
}
return retLayout;
}
protected void showSelectionControls() {
if (this.mStartSelect > -1 && this.mEndSelect > -1) {
Layout layout = updateSelectionSpan();
Rect parentTextViewRect = new Rect();
LayoutParams startLP = (LayoutParams) this.imgStartSelect
.getLayoutParams();
float xStart = layout.getPrimaryHorizontal(this.mStartSelect)
- mImgWidth / 2;
float yStart = layout.getLineBounds(
layout.getLineForOffset(this.mStartSelect),
parentTextViewRect);
startLP.setMargins((int) xStart, (int) yStart, -1, -1);
this.imgStartSelect.setLayoutParams(startLP);
this.imgStartSelect.setVisibility(View.VISIBLE);
LayoutParams endLP = (LayoutParams) this.imgEndSelect
.getLayoutParams();
float xEnd = layout.getPrimaryHorizontal(this.mEndSelect)
- mImgWidth / 2;
float yEnd = layout.getLineBounds(
layout.getLineForOffset(this.mEndSelect),
parentTextViewRect);
endLP.setMargins((int) xEnd, (int) yEnd, -1, -1);
this.imgEndSelect.setLayoutParams(endLP);
this.imgEndSelect.setVisibility(View.VISIBLE);
}
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (this.imgStartSelect != null) {
if (this.imgStartSelect.getVisibility() == View.GONE) {
this.onTouchDownCalcSelections(event);
disallowIntercept(false);
} else {
this.stopSelecting();
}
}
} else {
this.disallowIntercept(false);
}
return super.onTouchEvent(event);
}
private void hideSelectionControls() {
this.imgStartSelect.setVisibility(View.GONE);
this.imgEndSelect.setVisibility(View.GONE);
}
private int getOffsetByCoordinates(int x, int y) {
int retOffset = -1;
Layout layout = this.textView.getLayout();
if (layout != null) {
int line = layout.getLineForVertical(y);
retOffset = layout.getOffsetForHorizontal(line, x);
}
return retOffset;
}
private void onTouchDownCalcSelections(MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
this.mStartSelect = getOffsetByCoordinates(x, y);
if (this.mStartSelect > -1) {
// Calculate text end
String tempStr = this.textView.getText().toString();
tempStr = tempStr.substring(this.mStartSelect);
Pattern pt = Pattern.compile("\\s");
Matcher mt = pt.matcher(tempStr);
if (mt.find()) {
String match = mt.group(0);
tempStr = tempStr.substring(0, tempStr.indexOf(match));
}
this.mEndSelect = this.mStartSelect + tempStr.length();
}
}
public void setText(SpannableStringBuilder builder) {
this.textView.setText(builder);
}
public ImageView getImgEndSelect() {
return imgEndSelect;
}
public ImageView getImgStartSelect() {
return imgStartSelect;
}
/**
* For this all doing
*
* #return
*/
public String getSelectedText() {
String retSelectedString = null;
if (this.mStartSelect > -1 && this.mEndSelect > -1) {
retSelectedString = this.textView.getText()
.subSequence(this.mStartSelect, this.mEndSelect).toString();
}
return retSelectedString;
}
/**
* Hides cursors and clears
*
* #return
*/
public void stopSelecting() {
this.hideSelectionControls();
SpannedString spannable = (SpannedString) this.textView.getText();
SpannableStringBuilder ssb = new SpannableStringBuilder(spannable);
ssb.removeSpan(this.spanBackgroundColored);
this.setText(ssb);
if (selectableTextViewerListener != null) {
selectableTextViewerListener.stopSelectingText(
SelectableTextViewer.this, getSelectedText());
}
}
}

you have to this method as re-use, customize this method as per your use. this is just a concept.
// text comes from textview.gettext or database text and invalidate the view.
protected Layout updateSelectionSpan(Strint text) {
Layout retLayout = this.textView.getLayout();
if (this.mStartSelect > -1 && this.mEndSelect > -1) {
if (this.mStartSelect > this.mEndSelect) {
int temp = mEndSelect;
this.mEndSelect = mStartSelect;
this.mStartSelect = temp;
showSelectionControls();
}
SpannedString spannable = (SpannedString) text;
SpannableStringBuilder ssb = new SpannableStringBuilder(spannable);
ssb.removeSpan(this.spanBackgroundColored);
ssb.setSpan(this.spanBackgroundColored, this.mStartSelect,
this.mEndSelect, Spannable.SPAN_USER);
this.textView.setText(ssb);
this.textView.requestLayout();
if (this.selectableTextViewerListener != null) {
this.selectableTextViewerListener.updateSelection(this);
}
}
return retLayout;
}

Canvas Touch not working in S4 Android device

The wheel View (CircleView) is working fine in major of devices but this error coming from S4 and Note 3 devices.
The touch is getting deducted but the that not fall under the weidgetregion.
false - 1 has to be true - 1
Region Log is:
My Circle View code is
public class CircleView extends View implements OnTouchListener{
boolean firstTime = false;
private List<CircleViewBean> mMenuEntries = new ArrayList<CircleViewBean>();
private OnCellTouchListener mOnCellTouchListener = null;
public interface OnCellTouchListener {
public void onTouch(Wedge cell);
}
private Shader mShader;
private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
private float screen_density = getContext().getResources().getDisplayMetrics().density;
//Radius of inner ring size
private int mMinSize = scalePX(60);
//Radius of outer ring size
private int mMaxSize = scalePX(170);
private int mWedgeQty = 6;
//Center X location of Radial Menu
private int xPosition = scalePX(120);
//Center Y location of Radial Menu
private int yPosition = scalePX(120);
int touchIndex = -1;
private Wedge[] mWedges;
private RectF mViewRect = new RectF();
private int scalePX( int dp_size )
{
return (int) (dp_size * screen_density + 0.5f);
}
public CircleView(Context context) {
this(context, null);
}
public CircleView(Context context, AttributeSet attrs) {
super(context, attrs);
HashMap<String, String> device = Constants.getDeviceDetails(getResources().getDisplayMetrics().heightPixels, getResources().getDisplayMetrics().widthPixels);
mMinSize = Integer.parseInt(device.get("in_arc"));
mMaxSize = Integer.parseInt(device.get("out_arc"));
setBackgroundResource(R.drawable.centre_wheel);
}
private void determineWedges() {
int entriesQty = mMenuEntries.size();
if ( entriesQty > 0) {
mWedgeQty = entriesQty;
float degSlice = 360 / mWedgeQty;
float start_degSlice = 270 - (degSlice/2);
//calculates where to put the images
this.mWedges = new Wedge[mWedgeQty];
double mid = 0, min = 0, max = 0;
for(int i = 0; i < this.mWedges.length; i++) {
this.mWedges[i] = new Wedge(xPosition, yPosition, mMinSize, mMaxSize, (i
* degSlice)+start_degSlice, degSlice, mMenuEntries.get(i).getIndex());
mid = this.mWedges[i].midValue = normalizeAngle( ((i * degSlice) + start_degSlice + degSlice) / 2 );
min = normalizeAngle( (i * degSlice) + start_degSlice );
max = normalizeAngle( (i * degSlice) + start_degSlice + degSlice);
this.mWedges[i].minValue = min;
this.mWedges[i].midValue = mid;
this.mWedges[i].maxValue = max;
mViewRect.union( new RectF( mWedges[i].getWedgeRegion().getBounds() ) );
}
mShader = new RadialGradient(xPosition, yPosition, mMaxSize, new int[] { 0xff595756, 0xffCCC5C3, 0xf878280}, null, Shader.TileMode.MIRROR);
invalidate();
}
}
#Override
public void onDraw(Canvas canvas) {
if(!firstTime){
firstTime = true;
this.xPosition = (int) (getWidth()/2f);
this.yPosition = (int) (getHeight()/2f);
determineWedges();
}
canvas.scale(getWidth() / mViewRect.width(), getHeight() / mViewRect.width(), xPosition, yPosition);
//Saving the canvas and later restoring it so only this image will be rotated.
canvas.save(Canvas.MATRIX_SAVE_FLAG);
canvas.restore();
canvas.save();
canvas.restore();
mPaint.setShader( mShader );
}
private double normalizeAngle(double angle) {
if(angle >= 0) {
while( angle > 360 ) {
angle -= 360;
}
}
else {
while( angle < -360) {
angle += 360;
}
}
return angle;
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
int wmode = MeasureSpec.getMode(widthMeasureSpec);
int hmode = MeasureSpec.getMode(heightMeasureSpec);
int wsize = MeasureSpec.getSize(widthMeasureSpec);
int hsize = MeasureSpec.getSize(heightMeasureSpec);
int width = (int)mViewRect.width();
int height = (int) mViewRect.height();
if (wmode == MeasureSpec.EXACTLY) {
width = wsize;
}
if (hmode == MeasureSpec.EXACTLY) {
height = hsize;
}
this.setMeasuredDimension(width, height);
invalidate();
}
public class Wedge extends Path {
private int x, y;
private int InnerSize, OuterSize;
private float StartArc;
private float ArcWidth;
private Region mWedgeRegion;
private int index=0;
public double minValue;
public double midValue;
public double maxValue;
private Wedge(int x, int y, int InnerSize, int OuterSize, float StartArc, float ArcWidth, int category) {
super();
this.index = category;
if (StartArc >= 360) {
StartArc = StartArc-360;
}
minValue = midValue = maxValue = 0;
mWedgeRegion = new Region();
this.x = x; this.y = y;
this.InnerSize = InnerSize;
this.OuterSize = OuterSize;
this.StartArc = StartArc;
this.ArcWidth = ArcWidth;
this.buildPath();
}
public int getCategoryIndex(){
return this.index;
}
public String toString() {
return minValue + " " + midValue + " " + maxValue;
}
/**
*
* #return the bottom rect that will be used for intersection
*/
public Region getWedgeRegion() {
return mWedgeRegion;
}
private void buildPath() {
final RectF rect = new RectF();
final RectF rect2 = new RectF();
//Rectangles values
rect.set(this.x-this.InnerSize, this.y-this.InnerSize, this.x+this.InnerSize, this.y+this.InnerSize);
rect2.set(this.x-this.OuterSize, this.y-this.OuterSize, this.x+this.OuterSize, this.y+this.OuterSize);
this.reset();
//this.moveTo(100, 100);
this.arcTo(rect2, StartArc, ArcWidth);
this.arcTo(rect, StartArc+ArcWidth, -ArcWidth);
this.close();
mWedgeRegion.setPath( this, new Region(0,0,480,800) );
}
}
public boolean addMenuEntry(CircleViewBean menuEntry) {
mMenuEntries.add(menuEntry);
return true;
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_UP){
if(mOnCellTouchListener!=null && touchIndex >-1){
int i=0;
for(Wedge day : mWedges) {
if(day.getWedgeRegion().getBounds().contains((int)event.getX(), (int)event.getY()) && touchIndex==i) {
mOnCellTouchListener.onTouch(mWedges[touchIndex]);
break;
}
i++;
}
}
}else if(event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE){
int i=0;
for(Wedge day : mWedges) {
if(day.getWedgeRegion().getBounds().contains((int)event.getX(), (int)event.getY())) {
touchIndex = i;
setBackgroundResource(mMenuEntries.get(touchIndex).getIcon());
}
i++;
}
}
return true;
}
public void setOnCellTouchListener(OnCellTouchListener p) {
mOnCellTouchListener = p;
}
public boolean onTouch(View v, MotionEvent event) {
return false;
}
}

First of all, look at line 307. Learn how to read crash logs because it says exactly on what line the crash is, and then it shouldn't be too hard too determine what is wrong.
Not knowing what line it is I guess that mWedges might be null. in the onTouch you do for(Wedge day : mWedges) but it is not guaranteed that is isn't null there. You should check before you do that if it is null.
You put it to a non null value in determineWedges but only when there is at least 1 mMenuEntries. So when there are no entries when you do an onTouch it will crash.

At last i found my mistake in this code that it is working in mdpi and htpi and not in xxhdpi the reason is
mWedgeRegion.setPath( this, new Region(0,0,480,800) );
The bound exceeds the circle size, i mean the xxhdpi draws an circle with 1000x1000 values, so i made this too like this (max values)
mWedgeRegion.setPath( this, new Region(0,0,720,1200) )