I am trying to implement a ImageView which will have different reaction with each action(Drag, DoubleTap and Single Tap). What I am doing is based in this tutorial:
DoubleTap in android
Which I used to create my class:
public class MyIcon extends ImageView {
GestureDetector gestureDetector;
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
// creating new gesture detector
gestureDetector = new GestureDetector(context, new GestureListener());
}
// skipping measure calculation and drawing
// delegate the event to the gesture detector
#Override
public boolean onTouchEvent(MotionEvent e) {
return gestureDetector.onTouchEvent(e);
}
private class GestureListener extends GestureDetector.SimpleOnGestureListener {
#Override
public boolean onDown(MotionEvent e) {
return true;
}
// event when double tap occurs
#Override
public boolean onDoubleTap(MotionEvent e) {
//A Toast just to see if it is working
return true;
}
#Override
public boolean onShowPress(MotionEvent e) {
//A Toast just to see if it is working
return true;
}
}
}
To instantiate:
private WindowManager windowManager;
private MyIcon myIcon;
private WindowManager.LayoutParams params;
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
chatHead = new MyIcon(this);
chatHead.setImageResource(R.mipmap.ic_launcher);
params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSPARENT
);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
I used a setOnTouchListener() which worked fine to make do Drag, but it is not work to DoubleTap.
Which would be the correct way to implement and instantiate this class to both work?
try this may help you SimpleGestureFilter
public class SimpleGestureFilter extends SimpleOnGestureListener {
public final static int SWIPE_UP = 1;
public final static int SWIPE_DOWN = 2;
public final static int SWIPE_LEFT = 3;
public final static int SWIPE_RIGHT = 4;
public final static int MODE_TRANSPARENT = 0;
public final static int MODE_SOLID = 1;
public final static int MODE_DYNAMIC = 2;
private final static int ACTION_FAKE = -13; // just an unlikely number
private int swipe_Min_Distance = 100;
private int swipe_Max_Distance = 350;
private int swipe_Min_Velocity = 100;
private int mode = MODE_DYNAMIC;
private boolean running = true;
private boolean tapIndicator = false;
private Activity context;
private GestureDetector detector;
private SimpleGestureListener listener;
public SimpleGestureFilter(Activity context, SimpleGestureListener sgl) {
this.context = context;
this.detector = new GestureDetector(context, this);
this.listener = sgl;
}
public void onTouchEvent(MotionEvent event) {
if (!this.running)
return;
boolean result = this.detector.onTouchEvent(event);
if (this.mode == MODE_SOLID)
event.setAction(MotionEvent.ACTION_CANCEL);
else if (this.mode == MODE_DYNAMIC) {
if (event.getAction() == ACTION_FAKE)
event.setAction(MotionEvent.ACTION_UP);
else if (result)
event.setAction(MotionEvent.ACTION_CANCEL);
else if (this.tapIndicator) {
event.setAction(MotionEvent.ACTION_DOWN);
this.tapIndicator = false;
}
}
// else just do nothing, it's Transparent
}
public void setMode(int m) {
this.mode = m;
}
public int getMode() {
return this.mode;
}
public void setEnabled(boolean status) {
this.running = status;
}
public void setSwipeMaxDistance(int distance) {
this.swipe_Max_Distance = distance;
}
public void setSwipeMinDistance(int distance) {
this.swipe_Min_Distance = distance;
}
public void setSwipeMinVelocity(int distance) {
this.swipe_Min_Velocity = distance;
}
public int getSwipeMaxDistance() {
return this.swipe_Max_Distance;
}
public int getSwipeMinDistance() {
return this.swipe_Min_Distance;
}
public int getSwipeMinVelocity() {
return this.swipe_Min_Velocity;
}
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
final float xDistance = Math.abs(e1.getX() - e2.getX());
final float yDistance = Math.abs(e1.getY() - e2.getY());
if (xDistance > this.swipe_Max_Distance
|| yDistance > this.swipe_Max_Distance)
return false;
velocityX = Math.abs(velocityX);
velocityY = Math.abs(velocityY);
boolean result = false;
if (velocityX > this.swipe_Min_Velocity
&& xDistance > this.swipe_Min_Distance) {
if (e1.getX() > e2.getX()) // right to left
this.listener.onSwipe(SWIPE_LEFT);
else
this.listener.onSwipe(SWIPE_RIGHT);
result = true;
} else if (velocityY > this.swipe_Min_Velocity
&& yDistance > this.swipe_Min_Distance) {
if (e1.getY() > e2.getY()) // bottom to up
this.listener.onSwipe(SWIPE_UP);
else
this.listener.onSwipe(SWIPE_DOWN);
result = true;
}
return result;
}
#Override
public boolean onSingleTapUp(MotionEvent e) {
this.tapIndicator = true;
return false;
}
#Override
public boolean onDoubleTap(MotionEvent arg) {
this.listener.onDoubleTap();
;
return true;
}
#Override
public boolean onDoubleTapEvent(MotionEvent arg) {
return true;
}
#Override
public boolean onSingleTapConfirmed(MotionEvent arg) {
if (this.mode == MODE_DYNAMIC) { // we owe an ACTION_UP, so we fake an
arg.setAction(ACTION_FAKE); // action which will be converted to an
// ACTION_UP later.
this.context.dispatchTouchEvent(arg);
}
return false;
}
static interface SimpleGestureListener {
void onSwipe(int direction);
void onDoubleTap();
}
}
Use in code this way
private SimpleGestureFilter detector;
detector = new SimpleGestureFilter(this, this);
Just change in this method
#Override
public boolean dispatchTouchEvent(MotionEvent me) {
// Call onTouchEvent of SimpleGestureFilter class
this.detector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
Related
I'm actually using Groupie library, and I'm trying to delete a nested item inside a group adapter.
But when I use ItemTouchHelper, it only deletes the parent items(Objetos) or the nested items(Produtos), basically the first one that I try to swipe. It attaches just one of the ItemTouchHelpers to my RecyclerView.
Here is my Fragment Code:
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
metodos = new OSMetodos(requireContext(), requireActivity(), codOS);
adapter = new GroupAdapter<>();
adcTipoServ = view.findViewById(R.id.adcTipoServico);
adcTipoServ.setOnClickListener(view1 -> metodos.addService());
recyclerViewOS = view.findViewById(R.id.recyclerViewOSServ);
recyclerViewOS.setLayoutManager(new LinearLayoutManager(requireContext()));
setAdapter();
}
#Override
public void onResume() {
super.onResume();
setAdapter();
}
public void setAdapter() {
oldList.clear();
adapter.clear();
oldList = repo.getObjetoTipoServicoServicoCompleteWrappers(codOS, "D");
for (ObjetoTipoServicoServicoCompleteWrapper wrapper : oldList) {
servico = new OSServicoItem(wrapper, requireContext(), this);
objGroup = new ExpandableGroup(servico, false);
produtos = new ArrayList\<\>();
garantias = new ArrayList\<\>();
for (ProdutoServicoWithComodoProduto prod : wrapper.produtoServicoWithComodoProdutos) {
produtoItem = new OSServProdutoItem(prod, requireContext(), this);
produtoDetalhes = new OSServProdutoDetalhes(prod, requireContext(), requireActivity(), codOS);
prodGroup = new ExpandableGroup(produtoItem, false);
prodGroup.add(produtoDetalhes);
produtos.add(prodGroup);
}
for (GarantiaServicoClienteNewEntity garan : wrapper.garantiaServicoClienteNewEntities) {
garantiaItem = new OSServGarantiaItem(garan, requireContext());
garantias.add(garantiaItem);
}
prodSection = new Section(new OSServProdBtn(this), produtos);
garanSection = new Section(new OSServGaranBtn(this), garantias);
objGroup.add(prodSection);
objGroup.add(garanSection);
adapter.add(objGroup);
}
recyclerViewOS.setAdapter(adapter);
}
#Override
public void onSwiped(#Nullable ObjetoTipoServicoServicoCompleteWrapper objeto, #Nullable ProdutoServicoWithComodoProduto wrapper, int op) {
if (op == 0) {
SwipeToDelete swipeToDelete = new SwipeToDelete(0, ItemTouchHelper.LEFT, requireContext(), adapter, wrapper, null, oldList, requireActivity(), repo, op);
ItemTouchHelper itemTouchhelper = new ItemTouchHelper(swipeToDelete);
itemTouchhelper.attachToRecyclerView(recyclerViewOS);
} else {
SwipeToDelete swipeToDelete = new SwipeToDelete(0, ItemTouchHelper.LEFT, requireContext(), adapter, null, objeto, oldList, requireActivity(), repo, op);
ItemTouchHelper itemTouchhelper = new ItemTouchHelper(swipeToDelete);
itemTouchhelper.attachToRecyclerView(recyclerViewOS);
}
}
Here's my ParentItem GestureHelper:
public class GestureHelper implements View.OnTouchListener {
private final GestureDetector mGestureDetector;
private ObjetoTipoServicoServicoCompleteWrapper objeto;
public GestureHelper(Context context, ObjetoTipoServicoServicoCompleteWrapper objeto) {
mGestureDetector = new GestureDetector(context, new GestureListener(this));
this.objeto = objeto;
}
public void onSwipeRight() {
}
public void onSwipeLeft() {
onSwipe.onSwiped(objeto, null, 1);
}
public void onSwipeTop() {
}
public void onSwipeBottom() {
}
public void onDoubleTap() {
}
public void onClick() {
expandableGroup.onToggleExpanded();
}
#Override
public boolean onTouch(View v, MotionEvent event) {
return mGestureDetector.onTouchEvent(event);
}
private final class GestureListener extends GestureDetector.SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
private GestureHelper mHelper;
public GestureListener(GestureHelper helper) {
mHelper = helper;
}
#Override
public boolean onDown(MotionEvent e) {
return true;
}
#Override
public boolean onSingleTapUp(MotionEvent e) {
mHelper.onClick();
return true;
}
#Override
public boolean onDoubleTap(MotionEvent e) {
mHelper.onDoubleTap();
return true;
}
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
mHelper.onSwipeRight();
} else {
mHelper.onSwipeLeft();
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
mHelper.onSwipeBottom();
} else {
mHelper.onSwipeTop();
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
return result;
}
}
}
And finally my NestedItem GestureHelper:
public class GestureHelper implements View.OnTouchListener {
private final GestureDetector mGestureDetector;
private ProdutoServicoWithComodoProduto wrapper;
public GestureHelper(ProdutoServicoWithComodoProduto wrapper) {
mGestureDetector = new GestureDetector(context, new GestureListener(this));
this.wrapper = wrapper;
}
public void onSwipeRight() {
}
public void onSwipeLeft() {
onSwipeProduto.onSwiped(null, wrapper, 0);
}
public void onSwipeTop() {
}
public void onSwipeBottom() {
}
public void onDoubleTap() {
}
public void onClick() {
expandableGroup.onToggleExpanded();
}
#Override
public boolean onTouch(View v, MotionEvent event) {
return mGestureDetector.onTouchEvent(event);
}
private final class GestureListener extends GestureDetector.SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
private GestureHelper mHelper;
public GestureListener(GestureHelper helper) {
mHelper = helper;
}
#Override
public boolean onDown(MotionEvent e) {
return true;
}
#Override
public boolean onSingleTapUp(MotionEvent e) {
mHelper.onClick();
return true;
}
#Override
public boolean onDoubleTap(MotionEvent e) {
mHelper.onDoubleTap();
return true;
}
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
mHelper.onSwipeRight();
} else {
mHelper.onSwipeLeft();
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
mHelper.onSwipeBottom();
} else {
mHelper.onSwipeTop();
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
return result;
}
}
}
When i using on touch listener. Inside the touch listener i have called a method. The method parameters want activity and view. When i using getApplicationContext() in my service it shows
Wrong 1st argument type. Found: 'android.content.Context', required: 'android.app.Activity'
My code is given below
MyService.java
chatHead.setOnTouchListener(new View.OnTouchListener() {
private int initialX;
private int initialY;
private float initialTouchX;
private float initialTouchY;
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
initialX = params.x;
initialY = params.y;
initialTouchX = event.getRawX();
initialTouchY = event.getRawY();
startX = event.getX();
startY = event.getY();
return false;
case MotionEvent.ACTION_UP:
float endX = event.getX();
float endY = event.getY();
if (isAClick(startX, endX, startY, endY)) {
Log.d("LockView", "clicked2");
CircularAnim.fullActivity(getApplicationContext(), v)
.colorOrImageRes(R.color.color1)
.go(new CircularAnim.OnAnimationEndListener() {
#Override
public void onAnimationEnd() {
startActivity(new Intent(getApplicationContext(), BrowserActivity.class));
}
});
}
return true;
case MotionEvent.ACTION_MOVE:
params.x = initialX
+ (int) (event.getRawX() - initialTouchX);
params.y = initialY
+ (int) (event.getRawY() - initialTouchY);
windowManager.updateViewLayout(chatHead, params);
return false;
}
return true;
}
});
windowManager.addView(chatHead, params);
private boolean isAClick(float startX, float endX, float startY, float endY) {
float differenceX = Math.abs(startX - endX);
float differenceY = Math.abs(startY - endY);
if (differenceX > CLICK_ACTION_THRESHHOLD/* =5 */ || differenceY > CLICK_ACTION_THRESHHOLD) {
return false;
}
return true;
}
CircularAnim.java
public static FullActivityBuilder fullActivity(Activity activity, View triggerView) {
return new FullActivityBuilder(activity, triggerView);
}
public static void init(long perfectMills, long fullActivityPerfectMills, int colorOrImageRes) {
sPerfectMills = perfectMills;
sFullActivityPerfectMills = fullActivityPerfectMills;
sColorOrImageRes = colorOrImageRes;
}
The getApplicationContext() is getting in CircularAnim.fullActivity(MainActivity.this, view) but it is not in CircularAnim.fullActivity
How to solve problem of getApplicationContext in CircularAnim.fullActivity(getApplicationContext(), v)
Please help me.
Full code of CircularAnim
public class CircularAnim {
public static final long PERFECT_MILLS = 618;
public static final int MINI_RADIUS = 0;
private static Long sPerfectMills;
private static Long sFullActivityPerfectMills;
private static Integer sColorOrImageRes;
private static long getPerfectMills() {
if (sPerfectMills != null)
return sPerfectMills;
else
return PERFECT_MILLS;
}
private static long getFullActivityMills() {
if (sFullActivityPerfectMills != null)
return sFullActivityPerfectMills;
else
return PERFECT_MILLS;
}
private static int getColorOrImageRes() {
if (sColorOrImageRes != null)
return sColorOrImageRes;
else
return android.R.color.white;
}
public interface OnAnimationEndListener {
void onAnimationEnd();
}
#SuppressLint("NewApi")
public static class VisibleBuilder {
private View mAnimView, mTriggerView;
private Float mStartRadius, mEndRadius;
private long mDurationMills = getPerfectMills();
private boolean isShow;
private OnAnimationEndListener mOnAnimationEndListener;
public VisibleBuilder(View animView, boolean isShow) {
mAnimView = animView;
this.isShow = isShow;
if (isShow) {
mStartRadius = MINI_RADIUS + 0F;
} else {
mEndRadius = MINI_RADIUS + 0F;
}
}
public VisibleBuilder triggerView(View triggerView) {
mTriggerView = triggerView;
return this;
}
public VisibleBuilder startRadius(float startRadius) {
mStartRadius = startRadius;
return this;
}
public VisibleBuilder endRadius(float endRadius) {
mEndRadius = endRadius;
return this;
}
public VisibleBuilder duration(long durationMills) {
mDurationMills = durationMills;
return this;
}
#Deprecated //You can use method - go(OnAnimationEndListener onAnimationEndListener).
public VisibleBuilder onAnimationEndListener(OnAnimationEndListener onAnimationEndListener) {
mOnAnimationEndListener = onAnimationEndListener;
return this;
}
public void go() {
go(null);
}
public void go(OnAnimationEndListener onAnimationEndListener) {
mOnAnimationEndListener = onAnimationEndListener;
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
doOnEnd();
return;
}
int rippleCX, rippleCY, maxRadius;
if (mTriggerView != null) {
int[] tvLocation = new int[2];
mTriggerView.getLocationInWindow(tvLocation);
final int tvCX = tvLocation[0] + mTriggerView.getWidth() / 2;
final int tvCY = tvLocation[1] + mTriggerView.getHeight() / 2;
int[] avLocation = new int[2];
mAnimView.getLocationInWindow(avLocation);
final int avLX = avLocation[0];
final int avTY = avLocation[1];
int triggerX = Math.max(avLX, tvCX);
triggerX = Math.min(triggerX, avLX + mAnimView.getWidth());
int triggerY = Math.max(avTY, tvCY);
triggerY = Math.min(triggerY, avTY + mAnimView.getHeight());
int avW = mAnimView.getWidth();
int avH = mAnimView.getHeight();
rippleCX = triggerX - avLX;
rippleCY = triggerY - avTY;
int maxW = Math.max(rippleCX, avW - rippleCX);
int maxH = Math.max(rippleCY, avH - rippleCY);
maxRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1;
} else {
rippleCX = (mAnimView.getLeft() + mAnimView.getRight()) / 2;
rippleCY = (mAnimView.getTop() + mAnimView.getBottom()) / 2;
int w = mAnimView.getWidth();
int h = mAnimView.getHeight();
maxRadius = (int) Math.sqrt(w * w + h * h) + 1;
}
if (isShow && mEndRadius == null)
mEndRadius = maxRadius + 0F;
else if (!isShow && mStartRadius == null)
mStartRadius = maxRadius + 0F;
try {
Animator anim = ViewAnimationUtils.createCircularReveal(
mAnimView, rippleCX, rippleCY, mStartRadius, mEndRadius);
mAnimView.setVisibility(View.VISIBLE);
anim.setDuration(mDurationMills);
anim.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
doOnEnd();
}
});
anim.start();
} catch (Exception e) {
e.printStackTrace();
doOnEnd();
}
}
private void doOnEnd() {
if (isShow)
mAnimView.setVisibility(View.VISIBLE);
else
mAnimView.setVisibility(View.INVISIBLE);
if (mOnAnimationEndListener != null)
mOnAnimationEndListener.onAnimationEnd();
}
}
#SuppressLint("NewApi")
public static class FullActivityBuilder {
private Activity mActivity;
private View mTriggerView;
private float mStartRadius = MINI_RADIUS;
private int mColorOrImageRes = getColorOrImageRes();
private Long mDurationMills;
private OnAnimationEndListener mOnAnimationEndListener;
private int mEnterAnim = android.R.anim.fade_in, mExitAnim = android.R.anim.fade_out;
public FullActivityBuilder(Activity activity, View triggerView) {
mActivity = activity;
mTriggerView = triggerView;
}
public FullActivityBuilder startRadius(float startRadius) {
mStartRadius = startRadius;
return this;
}
public FullActivityBuilder colorOrImageRes(int colorOrImageRes) {
mColorOrImageRes = colorOrImageRes;
return this;
}
public FullActivityBuilder duration(long durationMills) {
mDurationMills = durationMills;
return this;
}
public FullActivityBuilder overridePendingTransition(int enterAnim, int exitAnim) {
mEnterAnim = enterAnim;
mExitAnim = exitAnim;
return this;
}
public void go(OnAnimationEndListener onAnimationEndListener) {
mOnAnimationEndListener = onAnimationEndListener;
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
doOnEnd();
return;
}
int[] location = new int[2];
mTriggerView.getLocationInWindow(location);
final int cx = location[0] + mTriggerView.getWidth() / 2;
final int cy = location[1] + mTriggerView.getHeight() / 2;
final ImageView view = new ImageView(mActivity);
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setImageResource(mColorOrImageRes);
final ViewGroup decorView = (ViewGroup) mActivity.getWindow().getDecorView();
int w = decorView.getWidth();
int h = decorView.getHeight();
decorView.addView(view, w, h);
int maxW = Math.max(cx, w - cx);
int maxH = Math.max(cy, h - cy);
final int finalRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1;
try {
Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, mStartRadius, finalRadius);
int maxRadius = (int) Math.sqrt(w * w + h * h) + 1;
if (mDurationMills == null) {
double rate = 1d * finalRadius / maxRadius;
mDurationMills = (long) (getFullActivityMills() * Math.sqrt(rate));
}
final long finalDuration = mDurationMills;
anim.setDuration((long) (finalDuration * 0.9));
anim.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
doOnEnd();
mActivity.overridePendingTransition(mEnterAnim, mExitAnim);
mTriggerView.postDelayed(new Runnable() {
#Override
public void run() {
if (mActivity.isFinishing()) return;
try {
Animator anim = ViewAnimationUtils.createCircularReveal(view, cx, cy,
finalRadius, mStartRadius);
anim.setDuration(finalDuration);
anim.addListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
try {
decorView.removeView(view);
} catch (Exception e) {
e.printStackTrace();
}
}
});
anim.start();
} catch (Exception e) {
e.printStackTrace();
try {
decorView.removeView(view);
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
}, 1000);
}
});
anim.start();
} catch (Exception e) {
e.printStackTrace();
doOnEnd();
}
}
private void doOnEnd() {
mOnAnimationEndListener.onAnimationEnd();
}
}
public static VisibleBuilder show(View animView) {
return new VisibleBuilder(animView, true);
}
public static VisibleBuilder hide(View animView) {
return new VisibleBuilder(animView, false);
}
public static FullActivityBuilder fullActivity(Activity activity, View triggerView) {
return new FullActivityBuilder(activity, triggerView);
}
public static void init(long perfectMills, long fullActivityPerfectMills, int colorOrImageRes) {
sPerfectMills = perfectMills;
sFullActivityPerfectMills = fullActivityPerfectMills;
sColorOrImageRes = colorOrImageRes;
}
}
Do it this way...
public class BaseService extends Service {
public Context mContext;
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate() {
super.onCreate();
mContext = getApplicationContext();
} }
getApplicationContext() is Related to application and not to activity hence you should use activityname.this or getBaseContext() and you are trying to perform UI Thread operation using Application Context ,Activity UI related operation shold be perform using Activity Context ,not Application Context
If what you need is to access the Context of your activity from your service, another thing you can try to pass the Activity context in the constructor of the Service. For example:
Activity
public class BT_Client extends Activity{
private BtService mBTService;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
mBtService = new BtService(this, ...);
}
}
Service
public class BtService {
Context myActivityContext;
public BtService(Context context, ...) {
myActivityContext = context;
...
}
}
I am using PagerSlidingTabStrip in an Android project.
When I swipe through the tabs, it is working correctly.
However, when I click on a tab, the tab does not change.
Here is the activity XML:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<au.edu.me.meandroidapplication.view.thirdparty.PagerSlidingTabStrip
android:id="#+id/progress_pager_tab_strip"
android:layout_width="match_parent"
android:layout_height="48dip"
app:pstsShouldExpand="true"
app:pstsIndicatorColor="#color/meTabIndicator"
app:pstsDividerColor="#color/meTabSeparator"
android:background="#color/meTabBackground" />
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/progressViewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="au.edu.me.meandroidapplication.view.activity.MyProgressActivity" />
</RelativeLayout>
Here is my code in onCreate():
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_progress);
this.viewPager = (ViewPager)this.findViewById(R.id.progressViewPager);
this.pagerAdapter = new MyProgressFragmentPagerAdapter(this.getSupportFragmentManager());
this.viewPager.setAdapter(this.pagerAdapter);
PagerSlidingTabStrip pagerTabStrip = (PagerSlidingTabStrip)this.findViewById(R.id.progress_pager_tab_strip);
pagerTabStrip.setViewPager(this.viewPager);
pagerTabStrip.setTextColorResource(R.color.meTabText);
}
Any advice on how to click the buttons to also change the tabs would be greatly appreciated!
Edit: yes the importing is from this project and not any other one. here is the code for PagerSlidingTabStrip
package au.edu.me.meandroidapplication.view.thirdparty;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Typeface;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.HorizontalScrollView;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.Locale;
import au.edu.me.meandroidapplication.R;
public class PagerSlidingTabStrip extends HorizontalScrollView {
public interface IconTabProvider {
public int getPageIconResId(int position);
}
// #formatter:off
private static final int[] ATTRS = new int[] {
android.R.attr.textSize,
android.R.attr.textColor
};
// #formatter:on
private LinearLayout.LayoutParams defaultTabLayoutParams;
private LinearLayout.LayoutParams expandedTabLayoutParams;
private final PageListener pageListener = new PageListener();
public OnPageChangeListener delegatePageListener;
private LinearLayout tabsContainer;
private ViewPager pager;
private int tabCount;
private int currentPosition = 0;
private float currentPositionOffset = 0f;
private Paint rectPaint;
private Paint dividerPaint;
private int indicatorColor = 0xFF666666;
private int underlineColor = 0x1A000000;
private int dividerColor = 0x1A000000;
private boolean shouldExpand = false;
private boolean textAllCaps = true;
private int scrollOffset = 52;
private int indicatorHeight = 8;
private int underlineHeight = 2;
private int dividerPadding = 12;
private int tabPadding = 24;
private int dividerWidth = 1;
private int tabTextSize = 12;
private int tabTextColor = 0xFF666666;
private Typeface tabTypeface = null;
private int tabTypefaceStyle = Typeface.BOLD;
private int lastScrollX = 0;
private int tabBackgroundResId = -1; // ### REMOVED
private Locale locale;
public PagerSlidingTabStrip(Context context) {
this(context, null);
}
public PagerSlidingTabStrip(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PagerSlidingTabStrip(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setFillViewport(true);
setWillNotDraw(false);
tabsContainer = new LinearLayout(context);
tabsContainer.setOrientation(LinearLayout.HORIZONTAL);
tabsContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
addView(tabsContainer);
DisplayMetrics dm = getResources().getDisplayMetrics();
scrollOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, scrollOffset, dm);
indicatorHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, indicatorHeight, dm);
underlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, underlineHeight, dm);
dividerPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerPadding, dm);
tabPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, tabPadding, dm);
dividerWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerWidth, dm);
tabTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, tabTextSize, dm);
// get system attrs (android:textSize and android:textColor)
TypedArray a = context.obtainStyledAttributes(attrs, ATTRS);
tabTextSize = a.getDimensionPixelSize(0, tabTextSize);
tabTextColor = a.getColor(1, tabTextColor);
a.recycle();
// get custom attrs
a = context.obtainStyledAttributes(attrs, R.styleable.PagerSlidingTabStrip);
indicatorColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsIndicatorColor, indicatorColor);
underlineColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsUnderlineColor, underlineColor);
dividerColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsDividerColor, dividerColor);
indicatorHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicatorHeight, indicatorHeight);
underlineHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsUnderlineHeight, underlineHeight);
dividerPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsDividerPadding, dividerPadding);
tabPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabPaddingLeftRight, tabPadding);
tabBackgroundResId = a.getResourceId(R.styleable.PagerSlidingTabStrip_pstsTabBackground, tabBackgroundResId);
shouldExpand = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsShouldExpand, shouldExpand);
scrollOffset = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsScrollOffset, scrollOffset);
textAllCaps = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsTextAllCaps, textAllCaps);
a.recycle();
rectPaint = new Paint();
rectPaint.setAntiAlias(true);
rectPaint.setStyle(Style.FILL);
dividerPaint = new Paint();
dividerPaint.setAntiAlias(true);
dividerPaint.setStrokeWidth(dividerWidth);
defaultTabLayoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
expandedTabLayoutParams = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f);
if (locale == null) {
locale = getResources().getConfiguration().locale;
}
}
public void setViewPager(ViewPager pager) {
this.pager = pager;
if (pager.getAdapter() == null) {
throw new IllegalStateException("ViewPager does not have adapter instance.");
}
pager.setOnPageChangeListener(pageListener);
notifyDataSetChanged();
}
public void setOnPageChangeListener(OnPageChangeListener listener) {
this.delegatePageListener = listener;
}
public void notifyDataSetChanged() {
tabsContainer.removeAllViews();
tabCount = pager.getAdapter().getCount();
for (int i = 0; i < tabCount; i++) {
if (pager.getAdapter() instanceof IconTabProvider) {
addIconTab(i, ((IconTabProvider) pager.getAdapter()).getPageIconResId(i));
} else {
addTextTab(i, pager.getAdapter().getPageTitle(i).toString());
}
}
updateTabStyles();
getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#SuppressWarnings("deprecation")
#SuppressLint("NewApi")
#Override
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
currentPosition = pager.getCurrentItem();
scrollToChild(currentPosition, 0);
}
});
}
private void addTextTab(final int position, String title) {
TextView tab = new TextView(getContext());
tab.setText(title);
tab.setGravity(Gravity.CENTER);
tab.setSingleLine();
addTab(position, tab);
}
private void addIconTab(final int position, int resId) {
ImageButton tab = new ImageButton(getContext());
tab.setImageResource(resId);
addTab(position, tab);
}
private void addTab(final int position, View tab) {
tab.setFocusable(true);
tab.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
pager.setCurrentItem(position);
}
});
tab.setPadding(tabPadding, 0, tabPadding, 0);
tabsContainer.addView(tab, position, shouldExpand ? expandedTabLayoutParams : defaultTabLayoutParams);
}
private void updateTabStyles() {
for (int i = 0; i < tabCount; i++) {
View v = tabsContainer.getChildAt(i);
// v.setBackgroundResource(tabBackgroundResId); // ### removed
if (v instanceof TextView) {
TextView tab = (TextView) v;
tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, tabTextSize);
tab.setTypeface(tabTypeface, tabTypefaceStyle);
tab.setTextColor(tabTextColor);
// setAllCaps() is only available from API 14, so the upper case is made manually if we are on a
// pre-ICS-build
if (textAllCaps) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
tab.setAllCaps(true);
} else {
tab.setText(tab.getText().toString().toUpperCase(locale));
}
}
}
}
}
private void scrollToChild(int position, int offset) {
if (tabCount == 0) {
return;
}
int newScrollX = tabsContainer.getChildAt(position).getLeft() + offset;
if (position > 0 || offset > 0) {
newScrollX -= scrollOffset;
}
if (newScrollX != lastScrollX) {
lastScrollX = newScrollX;
scrollTo(newScrollX, 0);
}
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (isInEditMode() || tabCount == 0) {
return;
}
final int height = getHeight();
// draw indicator line
rectPaint.setColor(indicatorColor);
// default: line below current tab
View currentTab = tabsContainer.getChildAt(currentPosition);
float lineLeft = currentTab.getLeft();
float lineRight = currentTab.getRight();
// if there is an offset, start interpolating left and right coordinates between current and next tab
if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {
View nextTab = tabsContainer.getChildAt(currentPosition + 1);
final float nextTabLeft = nextTab.getLeft();
final float nextTabRight = nextTab.getRight();
lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
}
canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
// draw underline
rectPaint.setColor(underlineColor);
canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);
// draw divider
dividerPaint.setColor(dividerColor);
for (int i = 0; i < tabCount - 1; i++) {
View tab = tabsContainer.getChildAt(i);
canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
}
}
private class PageListener implements OnPageChangeListener {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
currentPosition = position;
currentPositionOffset = positionOffset;
scrollToChild(position, (int) (positionOffset * tabsContainer.getChildAt(position).getWidth()));
invalidate();
if (delegatePageListener != null) {
delegatePageListener.onPageScrolled(position, positionOffset, positionOffsetPixels);
}
}
#Override
public void onPageScrollStateChanged(int state) {
if (state == ViewPager.SCROLL_STATE_IDLE) {
scrollToChild(pager.getCurrentItem(), 0);
}
if (delegatePageListener != null) {
delegatePageListener.onPageScrollStateChanged(state);
}
}
#Override
public void onPageSelected(int position) {
if (delegatePageListener != null) {
delegatePageListener.onPageSelected(position);
}
}
}
public void setIndicatorColor(int indicatorColor) {
this.indicatorColor = indicatorColor;
invalidate();
}
public void setIndicatorColorResource(int resId) {
this.indicatorColor = getResources().getColor(resId);
invalidate();
}
public int getIndicatorColor() {
return this.indicatorColor;
}
public void setIndicatorHeight(int indicatorLineHeightPx) {
this.indicatorHeight = indicatorLineHeightPx;
invalidate();
}
public int getIndicatorHeight() {
return indicatorHeight;
}
public void setUnderlineColor(int underlineColor) {
this.underlineColor = underlineColor;
invalidate();
}
public void setUnderlineColorResource(int resId) {
this.underlineColor = getResources().getColor(resId);
invalidate();
}
public int getUnderlineColor() {
return underlineColor;
}
public void setDividerColor(int dividerColor) {
this.dividerColor = dividerColor;
invalidate();
}
public void setDividerColorResource(int resId) {
this.dividerColor = getResources().getColor(resId);
invalidate();
}
public int getDividerColor() {
return dividerColor;
}
public void setUnderlineHeight(int underlineHeightPx) {
this.underlineHeight = underlineHeightPx;
invalidate();
}
public int getUnderlineHeight() {
return underlineHeight;
}
public void setDividerPadding(int dividerPaddingPx) {
this.dividerPadding = dividerPaddingPx;
invalidate();
}
public int getDividerPadding() {
return dividerPadding;
}
public void setScrollOffset(int scrollOffsetPx) {
this.scrollOffset = scrollOffsetPx;
invalidate();
}
public int getScrollOffset() {
return scrollOffset;
}
public void setShouldExpand(boolean shouldExpand) {
this.shouldExpand = shouldExpand;
requestLayout();
}
public boolean getShouldExpand() {
return shouldExpand;
}
public boolean isTextAllCaps() {
return textAllCaps;
}
public void setAllCaps(boolean textAllCaps) {
this.textAllCaps = textAllCaps;
}
public void setTextSize(int textSizePx) {
this.tabTextSize = textSizePx;
updateTabStyles();
}
public int getTextSize() {
return tabTextSize;
}
public void setTextColor(int textColor) {
this.tabTextColor = textColor;
updateTabStyles();
}
public void setTextColorResource(int resId) {
this.tabTextColor = getResources().getColor(resId);
updateTabStyles();
}
public int getTextColor() {
return tabTextColor;
}
public void setTypeface(Typeface typeface, int style) {
this.tabTypeface = typeface;
this.tabTypefaceStyle = style;
updateTabStyles();
}
public void setTabBackground(int resId) {
this.tabBackgroundResId = resId;
}
public int getTabBackground() {
return tabBackgroundResId;
}
public void setTabPaddingLeftRight(int paddingPx) {
this.tabPadding = paddingPx;
updateTabStyles();
}
public int getTabPaddingLeftRight() {
return tabPadding;
}
#Override
public void onRestoreInstanceState(Parcelable state) {
SavedState savedState = (SavedState) state;
super.onRestoreInstanceState(savedState.getSuperState());
currentPosition = savedState.currentPosition;
requestLayout();
}
#Override
public Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
SavedState savedState = new SavedState(superState);
savedState.currentPosition = currentPosition;
return savedState;
}
static class SavedState extends BaseSavedState {
int currentPosition;
public SavedState(Parcelable superState) {
super(superState);
}
private SavedState(Parcel in) {
super(in);
currentPosition = in.readInt();
}
#Override
public void writeToParcel(Parcel dest, int flags) {
super.writeToParcel(dest, flags);
dest.writeInt(currentPosition);
}
public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
#Override
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
#Override
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
}
I am having nearly 500+ images in Imageview inside Horizontalscrollview. If i am selecting an image then I am marking it as selected. If I am selecting any other images in the view, it should be un-select and newly clicked image should have to be selected. How could I can achieve it?
for (int i = 0; i < Home.arr_category_item_list.size(); i++) {
ImageView circleImageView = new ImageView(getActivity());
imageLoader.get(Home.arr_category_item_list.get(i).get(Variables.EST_CATEGORY_ITEM_IMAGE), ImageLoader.getImageListener(circleImageView, R.drawable.defaultimage, R.drawable.defaultimage));
circleImageView.setTag(Integer.parseInt(Home.arr_category_item_list.get(i).get(Variables.EST_CATEGORY_ITEM_ID)));
circleImageView.setLayoutParams(params);
lnr_category_item.addView(circleImageView);
}
Please check the image attached. At the bottom of the screen there is an Image view. So user will have option to select only one image at a time.
Now this is some really old code, hope it still works.
Note: there may be a thing or two missing, but you can get the idea from this implementation
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import yourpackage.R;
//Creataed by Bojan Kseneman on 14.8.2013
public class CustomCheckBox extends ImageView {
private boolean isChecked;
private boolean isImageShown;
private boolean useCustomClickListener;
//private String android_xmlns = "http://schemas.android.com/apk/res/android";
private String app_xmlns;
private int checkboxOnResID;
private int checkboxOffResID;
private int checkboxDisabledOnResID;
private int checkboxDisabledOffResID;
//private int imageHeight;
//private int imageWidth;
public CustomCheckBox(Context context, AttributeSet attrs) {
super(context, attrs);
app_xmlns = new StringBuilder("http://schemas.android.com/apk/res/" + context.getPackageName()).toString();
init(attrs);
}
private void init(AttributeSet attrs) {
checkboxOnResID = attrs.getAttributeResourceValue(app_xmlns, "resourceChecked", R.drawable.round_checkbox_on);
checkboxOffResID = attrs.getAttributeResourceValue(app_xmlns, "resourceNotChecked", R.drawable.round_checkbox_off);
checkboxDisabledOnResID = attrs.getAttributeResourceValue(app_xmlns, "resourceDisabledOn", R.drawable.round_checkbox_off);
checkboxDisabledOffResID = attrs.getAttributeResourceValue(app_xmlns, "resourceDisabledOff", R.drawable.round_checkbox_off);
useCustomClickListener = attrs.getAttributeBooleanValue(app_xmlns, "customClickEvent", false);
if (useCustomClickListener)
this.setOnTouchListener(new CboxTouchListener());
else {
this.setOnTouchListener(new NormalClickListener());
}
if (!hasOnClickListener()) {
/**
* assign a new onClick listener so we get desired onClick sound
* effect (because we call it) this is opposite to how android
* behaves, where you don't hear the sound if there is not
* onClickListener assigned
*/
this.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
}
private boolean hasOnClickListener() {
try {
if (android.os.Build.VERSION.SDK_INT >= 14) {
//the information is inside ListenerInfo
java.lang.reflect.Field listenerInfoField = null;
listenerInfoField = Class.forName("android.view.View").getDeclaredField("mListenerInfo");
if (listenerInfoField != null)
listenerInfoField.setAccessible(true);
Object mOnClickListener = null;
mOnClickListener = listenerInfoField.get(this); //get from view object, in this case this is this
// get the field mOnClickListener, that holds the listener and cast it to a listener
java.lang.reflect.Field listenerField = null;
listenerField = Class.forName("android.view.View$ListenerInfo").getDeclaredField("mOnClickListener");
//View.OnClickListener myListener = (View.OnClickListener) listenerField.get(myLiObject);
return (listenerField.get(mOnClickListener) != null);
}
else {
//directly in View
java.lang.reflect.Field f = Class.forName("android.view.View").getDeclaredField("mOnClickListener");
return (f.get(this) != null);
}
}
catch (Exception e) {
return false;
}
}
// private void setScaledDownImage(int resID) {
// this.setImageBitmap(CommonMethods.decodeSampledBitmapFromResource(getContext(), resID, imageWidth, imageHeight));
// }
public boolean isChecked() {
return (isChecked && this.isEnabled());
}
public void setChecked(boolean isChecked) {
if (this.isEnabled())
setCheckedIgnoreEnabled(isChecked);
else
this.setEnabled(false);
}
public void setCheckedIgnoreEnabled(boolean isChecked) {
if ((this.isChecked != isChecked) || !isImageShown) {
this.isChecked = isChecked;
if (isChecked)
setImageResource(checkboxOnResID);
else
setImageResource(checkboxOffResID);
}
}
#Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
if (enabled)
setChecked(isChecked);
else {
int resID = isChecked ? checkboxDisabledOnResID : checkboxDisabledOffResID;
setImageResource(resID);
}
}
public void setCheckedAndEnabled(boolean isChecked, boolean isEnabled) {
setCheckedIgnoreEnabled(isChecked);
setEnabled(isEnabled);
}
public void toggle() {
setChecked(!isChecked);
}
public void toggleWithClick() {
toggle();
this.performClick();
}
public void toggleWithSilentClick() {
//v.playSoundEffect(android.view.SoundEffectConstants.CLICK);
boolean currentState = this.isSoundEffectsEnabled();
this.setSoundEffectsEnabled(false);
toggleWithClick();
this.setSoundEffectsEnabled(currentState);
}
private class CboxTouchListener extends ImageBoundClickListener {
#Override
public void doSomething() {
super.doSomething();
setChecked(!isChecked);
CustomCheckBox.this.performClick();
}
}
private class NormalClickListener extends MyOnClickListener {
#Override
public void doSomething() {
super.doSomething();
setChecked(!isChecked);
CustomCheckBox.this.performClick();
}
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
//this.imageWidth = MeasureSpec.getSize(widthMeasureSpec);
//this.imageHeight = MeasureSpec.getSize(heightMeasureSpec);
if (!isImageShown) {
setChecked(isChecked);
isImageShown = !isImageShown;
}
}
}
I used this click listener, since I was using some round images and I didn't want to trigger the click events when the user clicked on the transparent part of the image.
public abstract class ImageBoundClickListener implements android.view.View.OnTouchListener {
private String TAG = "ImageBoundsTouchListener";
private boolean shouldTriggerAction = false;
Rect allowedArea;
#Override
public boolean onTouch(View v, MotionEvent event) {
//let's us detect only clicks on the part where actual image is and not where the ImageView is
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
float[] eventXY = new float[] { event.getX(), event.getY() };
allowedArea = new Rect(v.getLeft(), v.getTop(), v.getRight(), v.getBottom());
android.graphics.Matrix invertMatrix = new android.graphics.Matrix();
ImageView iv = (ImageView) v;
iv.getImageMatrix().invert(invertMatrix);
invertMatrix.mapPoints(eventXY);
int x = (int) eventXY[0];
int y = (int) eventXY[1];
Drawable imgDrawable = iv.getDrawable();
Bitmap bitmap = ((BitmapDrawable) imgDrawable).getBitmap();
//Limit x,y within the bitmap
if (x < 0)
x = 0;
else if (x > (bitmap.getWidth() - 1))
x = bitmap.getWidth() - 1;
if (y < 0)
y = 0;
else if (y > bitmap.getHeight() - 1)
y = bitmap.getHeight() - 1;
int touchedRGB = bitmap.getPixel(x, y);
//is transparent?
shouldTriggerAction = (touchedRGB == 0) ? false : true;
return true;
case MotionEvent.ACTION_MOVE:
if (!allowedArea.contains(v.getLeft() + (int) event.getX(), v.getTop() + (int) event.getY()))
//the user went out of the user area
shouldTriggerAction = false;
return true;
case MotionEvent.ACTION_UP:
//finger is no longer on screen
if (shouldTriggerAction)
doSomething();
return true;
default:
return false;
}
}
public void doSomething() {
}
}
I am trying to create an image viewer which can load images from given URLs.The code below implement the User Interface.
My intention is to let user Zoom the image and move to next image with a Swipe event.But the problem is that when i zoom and then swipe , instead of showing the remaining portion , it moves to the next image.
I tried using requestDisallowInterceptTouchEvent in TouchImageView's(https://github.com/MikeOrtiz/TouchImageView) onTouchListener .After this the remaining portion could show but now i cannot go to the next page. I was wondering how this can be achieved as the event can only go to either TouchView or PageAdapter
public class PageActivity extends Activity {
private int numPages = 33;
private TouchImageView[] imageViews = new TouchImageView[numPages];
private String URL = "http://www.smbc-comics.com/comics/200905";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ViewPager viewPager = new ViewPager(this);
for (int i = 0; i < numPages; i++) {
imageViews[i] = new TouchImageView(this);
imageViews[i].setBackgroundResource(R.drawable.banke);
imageViews[i].setMaxZoom(4f);
}
setContentView(viewPager);
ImagePagerAdapter adapter = new ImagePagerAdapter();
viewPager.setAdapter(adapter);
viewPager.setOffscreenPageLimit(2);
}
#SuppressWarnings("unused")
private class ImagePagerAdapter extends PagerAdapter {
#Override
public int getCount() {
return numPages;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == ((TouchImageView) object);
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
Context context = PageActivity.this;
String pageURL = URL;
if (imageViews[position].getDrawable() == null) {
ImageFetcher imagefetcher = new ImageFetcher();
imagefetcher.execute(
pageURL + String.format("%02d", position+1) + ".gif",
String.valueOf(position));
}
((ViewPager) container).addView(imageViews[position], 0);
return imageViews[position];
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((TouchImageView) object);
imageViews[position].setImageDrawable(null);
}
}
public class ImageFetcher extends AsyncTask<String, Integer, Drawable> {
int fillthisPos;
public Drawable doInBackground(String... urls) {
try {
InputStream is = (InputStream) new URL(urls[0]).getContent();
fillthisPos = Integer.parseInt(urls[1]);
Drawable d = Drawable.createFromStream(is, "src name");
return d;
} catch (Exception e) {
return null;
}
}
#Override
protected void onPostExecute(Drawable result) {
super.onPostExecute(result);
imageViews[fillthisPos].setImageDrawable(result);
result = null;
}
}
}
You can add following code in TouchImageView class:
public boolean isZoomed () {
return (normalizedScale > minScale);
}
private void onSwipeEvent(MotionEvent event) {
boolean zoomed = this.isZoomed();
if (!zoomed && (swipeLen > 0)) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
swipeStartPos = (int) event.getRawX();
}
else if (event.getAction() == MotionEvent.ACTION_MOVE) {
int distance = ((int) event.getRawX()) - swipeStartPos;
int swipeVector = SWIPE_RIGHT;
if (distance < 0) swipeVector = SWIPE_LEFT;
if (Math.abs(distance) > swipeLen) {
onSwipeHandler.onSwipe(swipeVector);
swipeStartPos = (int) event.getRawX();
this.setScaleX(1f);
}
else {
int swipeStDist = swipeLen - Math.round(((swipeLen / 100) * 50));
if (Math.abs(distance) > swipeStDist) {
this.setScaleX(0.98f);
}
}
}
else if (event.getAction() == MotionEvent.ACTION_UP) {
swipeStartPos = (int) event.getRawX();
this.setScaleX(1f);
}
}
}
public static int SWIPE_LEFT = 0;
public static int SWIPE_RIGHT = 1;
public int swipeStartPos = 0;
public onSwipeListener onSwipeHandler = new onSwipeListener() {
public void onSwipe(int vector) {}
};
public static int swipeLen = 0;
public void setOnSwipeListener(onSwipeListener c, int swipeLength) {
onSwipeHandler = c;
swipeLen = swipeLength;
}
public interface onSwipeListener {
public void onSwipe(int vector);
}
And also in TouchImageView below line 636 add onSwipeEvent(event) like this:
......
setImageMatrix(matrix);
onSwipeEvent(event);
//
// indicate event was handled
//
return true;
...........
After this from you code you can add swipe event listener, like this:
imageView.setOnSwipeListener(new TouchImageView.onSwipeListener() {
#Override
public void onSwipe(int vector) {
if (vector == TouchImageView.SWIPE_LEFT) {
Log.d("swipe", "swipe left!");
}
else if (vector == TouchImageView.SWIPE_RIGHT) {
Log.d("swipe", "swipe right!");
}
}
}, 200); //length of swiping - 200 dip
This onSwipeListener ignore onswipe where image is zoomed+. It work for me.