How to make automatic onClick and update mark image in Gridview - android

The first question that I have is that I have downloaded from the Internet MarkableImageView class to add a marker to an image I have already selected. The class is as follows:
public class MarkableImageView extends ImageView {
// Por defecto falso
private boolean checked = false;
public MarkableImageView(Context context) {
super(context);
}
public MarkableImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MarkableImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setChecked(boolean checked) {
this.checked = checked;
invalidate();
}
public boolean isChecked() {
return checked;
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if(checked) {
Bitmap check = BitmapFactory.decodeResource(
getResources(), R.drawable.checkbox_on_background);
int width = check.getWidth();
int height = check.getHeight();
//int margin = 15;
int marginWidth = (int)(canvas.getWidth()/15);
int marginHeight = (int)(canvas.getHeight()/20);
int x = canvas.getWidth() - width - marginWidth;
//int y = canvas.getHeight() - height - margin;
int y = marginHeight;
canvas.drawBitmap(check, canvas.getWidth()-check.getWidth(), 1, new Paint());
}
}
}
I use a Gridview to show all my photos and I want to marked some. I use a BaseAdapter to load the data, here is my method getView ():
public View getView(int position, View convertView, ViewGroup parent) {
MarkableImageView imageView;
if(convertView == null) {
imageView = new MarkableImageView(mContext);
imageView.setLayoutParams(new GridView.LayoutParams((int)(Preferencias.anchoPantalla/3.5), (int)(Preferencias.altoPantalla/4)));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
} else {
imageView = (MarkableImageView) convertView;
}
if(nivel == -1) {
if(!Preferencias.getIdsImagenesSeleccionadasJuegoMemoria().isEmpty()) {
if(Preferencias.getIdsImagenesSeleccionadasJuegoMemoria().size() > position) {
imageView.setImageResource(
Preferencias.imagenesTodas[Preferencias.getIdsImagenesSeleccionadasJuegoMemoria().get(position)]);
}
}
} else if(nivel == 0) {
if(!listaIdsDescubiertas.isEmpty()) {
if(listaIdsDescubiertas.size() > position) {
imageView.setImageResource(Preferencias.imagenesTodasPequeñas[listaIdsDescubiertas.get(position)]);
}
}
} else {
switch(nivel) {
case 1:
imageView.setImageResource(Preferencias.imagenesNivel1[position]);
break;
case 2:
imageView.setImageResource(Preferencias.imagenesNivel2[position]);
break;
}
if(!listaIdsDescubiertas.isEmpty()) {
for(Integer pos : listaIdsDescubiertas) {
if(calcularPosicion(position, nivel) == pos) {
imageView.setChecked(true);
}
}
}
}
return imageView;
}
Everything works perfectly but the problem is that when I start to move around the screen looks brand in the photos that I want to stop playing but the screen in certain positions marks are removed. Then touch the screen again reappears. How I can fix it to appear forever?
My second question is that I generate a grid where each image is a class called TileJuegoMemoria extending ImageView.
for (int r = 0; r < rows; r++) {
LinearLayout row = new LinearLayout(this);
row.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
row.setGravity(Gravity.CENTER);
for (int c = 0; c < columns; c++) {
TileJuegoMemoria tile = new TileJuegoMemoria(this, tilebackResource,
tilesImagenesRepetidas.get(position), position, sideLength, sideLength);
tile.setClickable(true);
tile.setId(position);
tile.setOnClickListener(tileOnClickListener);
row.addView(tile);
position++;
}
memoryBoardLayout.addView(row);
}
I add each object to a listener to click on it. The Listener has its method onClick () like this:
tileOnClickListener = new OnClickListener() {
#Override
public void onClick(View v) {
TileJuegoMemoria tempTile = (TileJuegoMemoria) v;
if (tempTile.getVisibility() == TileJuegoMemoria.INVISIBLE || (!tempTile.isBackVisible)) {
return;
}
int move = gameEngine.doMove(tempTile);
if (move == -1) {
return;
}
gameEngine.selectedTile = tempTile;
gameEngine.selectedTile.flipOver();
if (move == 2) {
final Handler handler = new Handler();
Timer t = new Timer();
t.schedule(new TimerTask() {
public void run() {
handler.post(new Runnable() {
public void run() {
TileJuegoMemoria precedentMoveselectedTile = gameEngine.movesArray[0];
if (gameEngine.selectedTile.tileFace.equals(precedentMoveselectedTile.tileFace)) {
if(eliminarAcertados) {
gameEngine.selectedTile.hide();
precedentMoveselectedTile.hide();
}
} else {
gameEngine.selectedTile.flipOver();
precedentMoveselectedTile.flipOver();
turnoJugador1 = !turnoJugador1;
}
gameEngine.clearMoveArray();
}
});
}
}, 1000);
}
}
};
}
The game is for 2 players where they take turns playing two screen images that change. My question is how it might do so after Player 1's turn, was the computer who did click on two random images.
Where gender had thought the images saved in a list the coordinates of each image to PerformClick () on it. What I can do? Thanks!

Related

Click listener is not working on surface view inside frame layout

I have read out many questions but I don't get the answer to mine.
So I am posting this new question.
I am working on a live streaming app. Basically I want to change the surface view size on click event like Whatsapp video calling.
I have two scenarios:-
Scenario 1:- One is relative layout which contains a surface view and there is a frame layout which also contains a surface view and I want to exchange when click event happens but the Click event listener is not working.
XML file
<FrameLayout
android:id="#+id/liveStreaming_videoAndControlsContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/black">
<com.sos.GD_Live.utils.liveUtils.VideoGridContainer
android:id="#+id/liveStreaming_videoContainer"
android:layout_width="match_parent"
android:layout_height="match_parent">
</com.sos.GD_Live.utils.liveUtils.VideoGridContainer>
<FrameLayout
android:id="#+id/videoChat_localVideoRender"
android:layout_marginBottom="130dp"
android:layout_marginRight="20dp"
android:layout_width="100dp"
android:onClick="frameclick"
android:visibility="visible"
android:layout_height="150dp"
android:layout_gravity="bottom|right"
/>
Its parent layout is also a frame layout
public class VideoGridContainer extends RelativeLayout implements Runnable {
private static final int MAX_USER = 4;
private static final int STAT_LEFT_MARGIN = 34;
private static final int STAT_TEXT_SIZE = 10;
private SparseArray<ViewGroup> mUserViewList = new SparseArray<>(MAX_USER);
private List<Integer> mUidList = new ArrayList<>(MAX_USER);
private Handler mHandler;
private int mStatMarginBottom;
private VideoViewEventListener mEventListener;
public VideoGridContainer(Context context) {
super(context);
init();
}
public VideoGridContainer(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public VideoGridContainer(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
mHandler = new Handler(getContext().getMainLooper());
}
public void addUserVideoSurface(int uid, SurfaceView surface, boolean isLocal) {
if (surface == null) {
return;
}
int id = -1;
if (isLocal) {
if (mUidList.contains(0)) {
mUidList.remove((Integer) 0);
mUserViewList.remove(0);
}
if (mUidList.size() == MAX_USER) {
mUidList.remove(0);
mUserViewList.remove(0);
}
id = 0;
} else {
if (mUidList.contains(uid)) {
mUidList.remove((Integer) uid);
mUserViewList.remove(uid);
}
if (mUidList.size() < MAX_USER) {
id = uid;
}
}
if (id == 0) mUidList.add(0, uid);
else mUidList.add(uid);
if (id != -1) {
mUserViewList.append(uid, createVideoView(surface));
requestGridLayout();
}
}
private ViewGroup createVideoView(SurfaceView surface) {
RelativeLayout layout = new RelativeLayout(getContext());
layout.setId(surface.hashCode());
LayoutParams videoLayoutParams =
new LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT);
layout.addView(surface, videoLayoutParams);
TextView text = new TextView(getContext());
text.setId(layout.hashCode());
LayoutParams textParams =
new LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
textParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
textParams.bottomMargin = mStatMarginBottom;
textParams.leftMargin = STAT_LEFT_MARGIN;
text.setTextColor(Color.WHITE);
text.setTextSize(STAT_TEXT_SIZE);
layout.addView(text, textParams);
return layout;
}
public void removeUserVideo(int uid, boolean isLocal) {
if (isLocal && mUidList.contains(0)) {
mUidList.remove((Integer) 0);
mUserViewList.remove(0);
} else if (mUidList.contains(uid)) {
mUidList.remove((Integer) uid);
mUserViewList.remove(uid);
}
requestGridLayout();
if (getChildCount() == 0) {
mHandler.removeCallbacks(this);
}
}
private void requestGridLayout() {
removeAllViews();
layout(mUidList.size());
}
private void layout(int size) {
LayoutParams[] params = getParams(size);
for (int i = 0; i < size; i++) {
addView(mUserViewList.get(mUidList.get(i)), params[i]);
}
}
private LayoutParams[] getParams(int size) {
int width = getMeasuredWidth();
int height = getMeasuredHeight();
LayoutParams[] array =
new LayoutParams[size];
for (int i = 0; i < size; i++) {
if (i == 0) {
array[0] = new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
array[0].addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
array[0].addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
} else if (i == 1) {
array[1] = new LayoutParams(width, height / 2);
array[0].height = array[1].height;
array[1].addRule(RelativeLayout.BELOW, mUserViewList.get(mUidList.get(0)).getId());
array[1].addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
} else if (i == 2) {
array[i] = new LayoutParams(width / 2, height / 2);
array[i - 1].width = array[i].width;
array[i].addRule(RelativeLayout.RIGHT_OF, mUserViewList.get(mUidList.get(i - 1)).getId());
array[i].addRule(RelativeLayout.ALIGN_TOP, mUserViewList.get(mUidList.get(i - 1)).getId());
} else if (i == 3) {
array[i] = new LayoutParams(width / 2, height / 2);
array[0].width = width / 2;
array[1].addRule(RelativeLayout.BELOW, 0);
array[1].addRule(RelativeLayout.ALIGN_PARENT_LEFT, 0);
array[1].addRule(RelativeLayout.RIGHT_OF, mUserViewList.get(mUidList.get(0)).getId());
array[1].addRule(RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.TRUE);
array[2].addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
array[2].addRule(RelativeLayout.RIGHT_OF, 0);
array[2].addRule(RelativeLayout.ALIGN_TOP, 0);
array[2].addRule(RelativeLayout.BELOW, mUserViewList.get(mUidList.get(0)).getId());
array[3].addRule(RelativeLayout.BELOW, mUserViewList.get(mUidList.get(1)).getId());
array[3].addRule(RelativeLayout.RIGHT_OF, mUserViewList.get(mUidList.get(2)).getId());
}
}
return array;
}
#Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
clearAllVideo();
}
private void clearAllVideo() {
removeAllViews();
mUserViewList.clear();
mUidList.clear();
mHandler.removeCallbacks(this);
}
#Override
public void run() {
}
public void setItemEventHandler(VideoViewEventListener listener) {
this.mEventListener = listener;
}
}
This code where in Java file, when I added surface view for both of the layouts
mVideoLayout = findViewById(R.id.liveStreaming_videoContainer);
mVideoLayout.addUserVideoSurface(0, surface, true);
SurfaceView surface = prepareRtcVideo(remotehost, false);
surface.setZOrderMediaOverlay(true);
mCameraBtn.setVisibility(View.VISIBLE);
remotehostlist.add(remotehost);
surface.setZOrderOnTop(true);
runOnUiThread(() -> {
surface.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent motionEvent) {
Toast.makeText(LiveStreamingActivity.this, "it's good", Toast.LENGTH_SHORT).show();
return true;
}
});
surface.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(LiveStreamingActivity.this, "it's good", Toast.LENGTH_SHORT).show();
}
});
});
mLayoutSmallView.addView(surface);
mLayoutSmallView.setVisibility(View.VISIBLE);
mLayoutSmallView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View view, boolean b) {
Toast.makeText(LiveStreamingActivity.this, "Focus changed", Toast.LENGTH_SHORT).show();
}
});
mRtcEngine.setupLocalVideo(new VideoCanvas(surface, VideoCanvas.RENDER_MODE_HIDDEN, 0));
mRtcEngine.enableVideo();
I have already tried onclick in XML, ontouchlistener, onfocuschange listener. But no one of them is working for it. Also tried is focusable.
The problem is I am unable to click the frame layout named mLayoutSmallView.
I want to switch the surface views when it is clicked.

GridLayout with view dynamic get row/column

I just followed this tutorial, to create a custom View as an item of a GridLayout.
That's my CustomView
public class RowView extends View{
boolean touchOn;
boolean mDownTouch = false;
private OnToggledListener toggledListener;
int _IdRow = 0;
int _IdColumn = 0;
public RowView(Context context, int Rows, int Columns) {
super(context);
this._IdRow = Rows;
this._IdColumn = Columns;
init();
}
public RowView(Context context) {
super(context);
init();
}
public RowView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public RowView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
private void init() {
touchOn = false;
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec),
MeasureSpec.getSize(heightMeasureSpec));
}
#Override
protected void onDraw(Canvas canvas) {
if (touchOn) {
canvas.drawColor(Color.RED);
} else {
canvas.drawColor(Color.GRAY);
}
}
//onClick not possible to use on custom View so, onTouchEvent is the solution
#Override
public boolean onTouchEvent(MotionEvent event) {
super.onTouchEvent(event);
switch (event.getAction()) {
//if Click
case MotionEvent.ACTION_DOWN:
touchOn = !touchOn;
invalidate();
if(toggledListener != null){
toggledListener.OnToggled(this, touchOn);
}
mDownTouch = true;
return true;
case MotionEvent.ACTION_UP:
if (mDownTouch) {
mDownTouch = false;
performClick();
return true;
}
}
return false;
}
#Override
public boolean performClick() {
super.performClick();
return true;
}
public void setOnToggledListener(OnToggledListener listener){
toggledListener = listener;
}
public int get_IdRow() {
return _IdRow;
}
public int get_IdColumn() {
return _IdColumn;
}
On this class I can detect when user clicks on an item of GridLayout and change it to another color, that's ok.
But the problem comes at the time to create this :
This is my MainActivity where I show the GridLayout :
int numOfCol = mGridLayout.getColumnCount();
int numOfRow = mGridLayout.getRowCount();
mRowViews = new RowView[numOfCol*numOfRow];
for(int yPos=0; yPos<numOfRow; yPos++){
for(int xPos=0; xPos<numOfCol; xPos++){
RowView tView = new RowView(this, xPos, yPos);
tView.setOnToggledListener(this);
mRowViews[yPos*numOfCol + xPos] = tView;
mGridLayout.addView(tView);
}
}
mGridLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener(){
#Override
public void onGlobalLayout() {
final int MARGIN = 5;
int pWidth = mGridLayout.getWidth();
int pHeight = mGridLayout.getHeight();
int numOfCol = mGridLayout.getColumnCount();
int numOfRow = mGridLayout.getRowCount();
int w = pWidth/numOfCol;
int h = pHeight/numOfRow;
for(int yPos=0; yPos<numOfRow; yPos++){
for(int xPos=0; xPos<numOfCol; xPos++){
GridLayout.LayoutParams params =
(GridLayout.LayoutParams)mRowViews[yPos*numOfCol + xPos].getLayoutParams();
params.width = w - 2*MARGIN;
params.height = h - 2*MARGIN;
params.setMargins(MARGIN, MARGIN, MARGIN, MARGIN);
mRowViews[yPos*numOfCol + xPos].setLayoutParams(params);
}
}
}});
Also there is a method of the Interface OnToggledListener that gives to me the row and column of my GridLayout when an item of it is clicked :
#Override
public void OnToggled(MyView v, boolean touchOn) {
//get the id string
String idString = v.get_IdRow() + ":" + v.get_IdColumn();
}
I'd like to avoid to create that mGridLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() because it fills on the screen thing that I don't want... I tried to put GridLayout 6x6 with android:layout_height="400dp" and it only show 3x3 and this is the LogCat message
D/android.widget.GridLayout: vertical constraints: y6-y0>=1749, y6-y5<=291, y5-y4<=291, y4-y3<=291, y3-y2<=291, y2-y1<=291, y1-y0<=291 are inconsistent; permanently removing: y6-y5<=291.
I'd like to do something like GridLayout[row][colum] to get the color of background and then do stuff, but I'm not able to find this solution.
For simplifying, you can implement a custom Board view wrapping the GridLayout and related logic. Below I report a possible approach.
Expectation here is to have an ItemView for representing one single cell in the board.
public class Board extends FrameLayout implements View.OnClickListener {
private GridLayout mGridView;
private int mRowsCount;
private int mColsCount;
private int mCellSpace;
private OnItemClickListener mOnItemClickListener;
public Board(Context context) {
super(context);
init(context, null);
}
// other constructors
private void init(Context context, AttributeSet attrs) {
// default values
mRowsCount = 1;
mColsCount = 1;
View layout = inflate(getContext(), R.layout.view_lights_board, null);
mGridView = (GridLayout) layout.findViewById(R.id.view_grid);
mGridView.setRowCount(mRowsCount);
mGridView.setColumnCount(mColsCount);
mGridView.post(new Runnable() {
#Override
public void run() {
int width = getMeasuredWidth() / getColumnsCount();
int height = getMeasuredHeight() / getRowsCount();
for (int i = 0; i < getRowsCount(); i++) {
for (int j = 0; j < getColumnsCount(); j++) {
GridLayout.LayoutParams params = (GridLayout.LayoutParams)
getChildAt(i, j).getLayoutParams();
params.width = width;
params.height = height;
getChildAt(i, j).setLayoutParams(params);
}
}
}
});
addView(layout);
}
// this method allows to dinamically create grid
public void buildChildren(int rowsCount, int colsCount) {
mRowsCount = rowsCount;
mColsCount = colsCount;
mGridView.setRowCount(mRowsCount);
mGridView.setColumnCount(mColsCount);
buildChildren();
}
public void buildChildren() {
for (int i = 0; i < getRowsCount(); i++) {
for (int j = 0; j < getColumnsCount(); j++) {
ItemView view = new ItemView(getContext(), i, j);
view.setOnClickListener(this);
mGridView.addView(view);
}
}
}
public void setOnItemClickListener(OnItemClickListener listener) {
mOnItemClickListener = listener;
}
public ItemView getChildAt(int rowIndex, int columnIndex) {
int index = (getColumnsCount() * rowIndex) + columnIndex;
return (ItemView) mGridView.getChildAt(index);
}
public boolean isTouchOn(int rowIndex, int columnIndex) {
return getChildAt(rowIndex, columnIndex).isTouchOn();
}
public int getColumnsCount() {
return mGridView.getColumnCount();
}
public int getRowsCount() {
return mGridView.getRowCount();
}
#Override
public void onClick(View v) {
if (v instanceof ItemView) {
ItemView view = (ItemView) v;
if (mOnItemClickListener != null) {
mOnItemClickListener.onItemClick(view);
}
}
}
public interface OnItemClickListener {
void onItemClick(ItemView view);
}
}
In your Activity layout you will have something like this (here I assume your app package is com.android.example):
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<com.android.example.Board
android:id="#+id/grid"
android:layout_width="match_parent"
android:layout_height="400dp" />
</FrameLayout>
And this is possible implementation of the Activity:
public class MainActivity extends AppCompatActivity implements LightsOutBoard.OnItemClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Board board = (Board) findViewById(R.id.grid);
board.setOnItemClickListener(this);
board.buildChildren(3, 3);
}
#Override
public void onItemClick(ItemView view) {
String text = view.getRowIndex() + " - " + view.getColumnIndex();
Toast.makeText(this, text, Toast.LENGTH_SHORT).show();
}
}
Hope this could help.

Android new Inbox app style listview with swipe left and right

m trying to build android new inbox style listview with swipe left and right as shown in this image , i have tried 47deg swipelistview but its not that stable , is there any other library available?!
Tried so far with 47 deg
public class MainActivity extends Activity {
Listview pullToRefreshListView;
SwipeListView swipelistview;
ItemAdapter adapter;
List<ItemRow> itemData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pullToRefreshListView = (ListView) findViewById(R.id.example_swipe_lv_list);
swipelistview = pullToRefreshListView.getRefreshableView();
itemData = new ArrayList<ItemRow>();
adapter = new ItemAdapter(this, R.layout.custom_row, itemData);
swipelistview.setSwipeListViewListener(new BaseSwipeListViewListener() {
#Override
public void onOpened(int position, boolean toRight) {
if (toRight) {
adapter.remove(position);
Toast.makeText(MainActivity.this, "Open to dismiss",
Toast.LENGTH_SHORT).show();
} // swipelistview.dismiss(position);
else {
Toast.makeText(MainActivity.this, "Open to edit",
Toast.LENGTH_SHORT).show();
}
}
#Override
public void onClosed(int position, boolean fromRight) {
}
#Override
public void onListChanged() {
}
#Override
public void onMove(int position, float x) {
}
#Override
public void onStartOpen(int position, int action, boolean right) {
if (right) {
// adapter.onRight();
swipelistview.getChildAt(position).findViewById(R.id.back)
.setBackgroundColor(Color.GREEN);
swipelistview.getChildAt(position)
.findViewById(R.id.imageViewLeft)
.setVisibility(View.VISIBLE);
swipelistview.getChildAt(position)
.findViewById(R.id.imageViewRight)
.setVisibility(View.GONE);
} else {
// adapter.onLeft();
swipelistview.getChildAt(position).findViewById(R.id.back)
.setBackgroundColor(Color.RED);
swipelistview.getChildAt(position)
.findViewById(R.id.imageViewLeft)
.setVisibility(View.GONE);
swipelistview.getChildAt(position)
.findViewById(R.id.imageViewRight)
.setVisibility(View.VISIBLE);
}
}
#Override
public void onStartClose(int position, boolean right) {
Log.d("swipe", String.format("onStartClose %d", position));
}
#Override
public void onClickFrontView(int position) {
Log.d("swipe", String.format("onClickFrontView %d", position));
// swipelistview.openAnimate(position); //when you touch front
// view it will open
}
#Override
public void onClickBackView(int position) {
Log.d("swipe", String.format("onClickBackView %d", position));
// swipelistview.closeAnimate(position);//when you touch back
// view it will close
}
#Override
public void onDismiss(int[] reverseSortedPositions) {
}
});
// These are the swipe listview settings. you can change these
// setting as your requirement
swipelistview.setSwipeMode(SwipeListView.SWIPE_MODE_BOTH); // there are
// five
// swiping
// modes
swipelistview.setSwipeActionRight(SwipeListView.SWIPE_ACTION_REVEAL); // there
// are
// four
// swipe
// actions
swipelistview.setSwipeActionLeft(SwipeListView.SWIPE_ACTION_REVEAL);
swipelistview.setOffsetRight(convertDpToPixel(0f)); // left side
// offset
swipelistview.setOffsetLeft(convertDpToPixel(0f)); // right side
// offset
swipelistview.setAnimationTime(60); // Animation time
swipelistview.setSwipeOpenOnLongPress(false); // enable or disable
// SwipeOpenOnLongPress
swipelistview.setSwipeCloseAllItemsWhenMoveList(true);
swipelistview.setAdapter(adapter);
for (int i = 0; i < 10; i++) {
itemData.add(new ItemRow("Swipe Item" + i, getResources()
.getDrawable(R.drawable.ic_launcher)));
}
adapter.notifyDataSetChanged();
}
public int convertDpToPixel(float dp) {
DisplayMetrics metrics = getResources().getDisplayMetrics();
float px = dp * (metrics.densityDpi / 160f);
return (int) px;
}
}
Adapter class
public class ItemAdapter extends ArrayAdapter<ItemRow> {
List<ItemRow> data;
Context context;
int layoutResID;
public ItemAdapter(Context context, int layoutResourceId, List<ItemRow> data) {
super(context, layoutResourceId, data);
this.data = data;
this.context = context;
this.layoutResID = layoutResourceId;
// TODO Auto-generated constructor stub
}
NewsHolder holder = null;
View row = null;
#Override
public View getView(int position, View convertView, ViewGroup parent) {
row = convertView;
holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResID, parent, false);
holder = new NewsHolder();
holder.itemName = (TextView) row
.findViewById(R.id.example_itemname);
holder.icon = (ImageView) row.findViewById(R.id.example_image);
holder.imageViewRight = (ImageView) row
.findViewById(R.id.imageViewRight);
holder.imageViewLeft = (ImageView) row
.findViewById(R.id.imageViewLeft);
row.setTag(holder);
} else {
holder = (NewsHolder) row.getTag();
}
ItemRow itemdata = data.get(position);
holder.itemName.setText(itemdata.getItemName());
holder.icon.setImageDrawable(itemdata.getIcon());
return row;
}
public void remove(int pos){
data.remove(pos);
}
public void onLeft() {
holder.imageViewLeft.setVisibility(View.VISIBLE);
holder.imageViewRight.setVisibility(View.GONE);
}
public void onRight() {
holder.imageViewRight.setVisibility(View.VISIBLE);
holder.imageViewLeft.setVisibility(View.GONE);
}
static class NewsHolder {
TextView itemName;
ImageView icon;
ImageView imageViewLeft, imageViewRight;
RelativeLayout mRelativeLayout;
}
Instead of using a custom ListView you can simply support "swipe" gesture on list items onTouch, like the following:
private static final int DEFAULT_THRESHOLD = 128;
row.setOnTouchListener(new View.OnTouchListener() {
int initialX = 0;
final float slop = ViewConfiguration.get(context).getScaledTouchSlop();
public boolean onTouch(final View view, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
initialX = (int) event.getX();
view.setPadding(0, 0, 0, 0);
} else if (event.getAction() == MotionEvent.ACTION_MOVE) {
int currentX = (int) event.getX();
int offset = currentX - initialX;
if (Math.abs(offset) > slop) {
view.setPadding(offset, 0, 0, 0);
if (offset > DEFAULT_THRESHOLD) {
// TODO :: Do Right to Left action! And do nothing on action_up.
} else if (offset < -DEFAULT_THRESHOLD) {
// TODO :: Do Left to Right action! And do nothing on action_up.
}
}
} else if (event.getAction() == MotionEvent.ACTION_UP || event.getAction() == MotionEvent.ACTION_CANCEL) {
// Animate back if no action was performed.
ValueAnimator animator = ValueAnimator.ofInt(view.getPaddingLeft(), 0);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator valueAnimator) {
view.setPadding((Integer) valueAnimator.getAnimatedValue(), 0, 0, 0);
}
});
animator.setDuration(150);
animator.start();
}
};
I also use reverse animation if no action was performed.
This solution is lightweight so you should not experience any lags.
Check out: SwipeActionAdapter
It's a great library that does exactly what you're asking for. It allows Swipe in both directions with an underlying Layout or Color. It's easy to implement and looks nice!
Updated Answer
As I mentioned previously, I took the same approach and it seems to work as expected. I have added 3 layers to a RelativeLayout. Top layer is what you want to show. Second layer is a plain background with delete icon at the left. Third layer is another plain background with share icon at the right. I implemented a swipe detector class which extends View.OnTouchListener.
public class SwipeDetector implements View.OnTouchListener {
private static final int MIN_DISTANCE = 300;
private static final int MIN_LOCK_DISTANCE = 30; // disallow motion intercept
private boolean motionInterceptDisallowed = false;
private float downX, upX;
private ObjectHolder holder;
private int position;
public SwipeDetector(ObjectHolder h, int pos) {
holder = h;
position = pos;
}
#Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
downX = event.getX();
return true; // allow other events like Click to be processed
}
case MotionEvent.ACTION_MOVE: {
upX = event.getX();
float deltaX = downX - upX;
if (Math.abs(deltaX) > MIN_LOCK_DISTANCE && listView != null && !motionInterceptDisallowed) {
listView.requestDisallowInterceptTouchEvent(true);
motionInterceptDisallowed = true;
}
if (deltaX > 0) {
holder.deleteView.setVisibility(View.GONE);
} else {
// if first swiped left and then swiped right
holder.deleteView.setVisibility(View.VISIBLE);
}
swipe(-(int) deltaX);
return true;
}
case MotionEvent.ACTION_UP:
upX = event.getX();
float deltaX = upX - downX;
if (Math.abs(deltaX) > MIN_DISTANCE) {
// left or right
swipeRemove();
} else {
swipe(0);
}
if (listView != null) {
listView.requestDisallowInterceptTouchEvent(false);
motionInterceptDisallowed = false;
}
holder.deleteView.setVisibility(View.VISIBLE);
return true;
case MotionEvent.ACTION_CANCEL:
holder.deleteView.setVisibility(View.VISIBLE);
return false;
}
return true;
}
private void swipe(int distance) {
View animationView = holder.mainView;
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) animationView.getLayoutParams();
params.rightMargin = -distance;
params.leftMargin = distance;
animationView.setLayoutParams(params);
}
private void swipeRemove() {
remove(getItem(position));
notifyDataSetChanged();
}
}
public static class ObjectHolder {
public LinearLayout mainView;
public RelativeLayout deleteView;
public RelativeLayout shareView;
/* other views here */
}
I have also added requestDisallowInterceptTouchEvent so that ListView (which is parent) doesn't intercept the touch event when there's some amount of vertical scrolling involved.
I have written a blogpost about it which you can find it here. I have also added a Youtube video for demo.
Old Answer
I implemented one of these myself, but it's a bit different. I use just touch instead of swiping. Touch to open, touch to close. Here's youtube demo.
I created custom ArrayAdapter. To set the layout, I created a custom layout like this.
<RelativeLayout>
<RelativeLayout>
<Stuff that you want at the back of your list/>
</RelativeLayout>
<RelativeLayout>
<Stuff that you want at the front of your list/>
</RelativeLayout>
</RelativeLayout>
Using RelativeLayout, I am putting the top view over the bottom view. Both have same sizes. You can use different layouts for inner layouts.
In Custom ArrayAdapter,
#Override
public view getView(int position, View convertView, ViewGroup parent) {
// get holder and entry
// set each element based on entry preferences
holder.topView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (entry.isSwiped()) {
swipeWithAnimationValue(holder.topView, 1);
entry.setSwiped(false);
} else {
closeOtherSwipes(entry); // if you want to keep only one entry open at a time
swipeWithAnimationValue(holder.topView, 0);
entry.setSwiped(true);
}
}
});
}
Normal Animation would not work as it just shifts the view, but it's still there so if you try to click, the click still occurs on the top view. Hence I have used valueAnimator and actually shifted those lists.
public void swipeWithAnimationValue(final View view, final int direction) {
final int width = view.getWidth();
Log.i(TAG, "view width = " + String.valueOf(width));
ValueAnimator animationSwipe;
int duration = 300;
if (direction == 0) {
animationSwipe = ValueAnimator.ofInt(0, view.getWidth() - 200);
} else {
animationSwipe = ValueAnimator.ofInt(view.getWidth() - 200, 0);
}
animationSwipe.setDuration(duration);
AnimatorUpdateListener maringUpdater = new AnimatorUpdateListener() {
#Override
public void onAnimationUpdate(ValueAnimator animation) {
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) view.getLayoutParams();
params.rightMargin = -(Integer)animation.getAnimatedValue();
params.leftMargin = (Integer)animation.getAnimatedValue();
view.setLayoutParams(params);
}
};
animationSwipe.addUpdateListener(maringUpdater);
animationSwipe.setRepeatCount(0);
animationSwipe.start();
}

how to add fast scroll and alphabetical section index in listview

In details, I am looking for an example exactly like below image. I got a good example in this link https://github.com/woozzu/IndexableListView. Its works fine as my requirement.But problem when i implementing to my project it is showing error in list view. below is my code plz help me. i am new to this topic. Thank you in advance!
looking for:
here is my code below plz say my mistake..
MainActivity .java
public class MainActivity extends Activity implements SearchView.OnQueryTextListener,SearchView.OnCloseListener {
private ListView listView;
private SearchView search;
EfficientAdapter objectAdapter;
EfficientAdapter2 objectAdapter1;
int textlength=0;
private CheckBox checkStat, checkRoutine, checkTat;
private GestureDetector mGestureDetector;
private ArrayList<CountriesList> elements;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.homempleb);
Log.i("scan"," txtScanResult ");
//Arrays.sort(CountriesList.name);
ActionItem nextItem = new ActionItem();
final QuickAction quickAction = new QuickAction(this, QuickAction.VERTICAL);
quickAction.addActionItem(nextItem);
quickAction.setOnDismissListener(new QuickAction.OnDismissListener() {
#Override
public void onDismiss() {
Toast.makeText(getApplicationContext(), "Dismissed", Toast.LENGTH_SHORT).show();
}
});
search = (SearchView) findViewById(R.id.searchView1);
search.setIconifiedByDefault(false);
search.setOnQueryTextListener(this);
search.setOnCloseListener(this);
search.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
quickAction.show(v);
}
});
checkStat = (CheckBox) findViewById(R.id.checkBoxStat);
checkRoutine = (CheckBox) findViewById(R.id.checkBoxRoutine);
checkTat = (CheckBox) findViewById(R.id.checkBoxTat);
checkStat.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkStat.setChecked(true);
Toast.makeText(MainActivity.this, "STAT", Toast.LENGTH_SHORT).show();
checkRoutine.setChecked(false);
checkTat.setChecked(false);
}
}
});
checkRoutine.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkRoutine.setChecked(true);
Toast.makeText(MainActivity.this, "ROUTINE", Toast.LENGTH_SHORT).show();
checkStat.setChecked(false);
checkTat.setChecked(false);
}
}
});
checkTat.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkTat.setChecked(true);
Toast.makeText(MainActivity.this, "TAT Effeciency", Toast.LENGTH_SHORT).show();
checkRoutine.setChecked(false);
checkStat.setChecked(false);
}
}
});
listView = (ListView) findViewById(R.id.homelistView);
listView.setTextFilterEnabled(true);
listView.setFastScrollEnabled(true);
objectAdapter = new EfficientAdapter(this, elements );
listView.setAdapter(objectAdapter);
Button refreshButton= (Button)findViewById(R.id.refreshButton);
refreshButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
objectAdapter1 = new EfficientAdapter2(MainActivity.this);
// objectAdapter = new EfficientAdapter(MainActivity.this);// adapter with new data
listView.setAdapter(objectAdapter1);
Log.i("notifyDataSetChanged", "data updated");
objectAdapter1.notifyDataSetChanged();
}
});
}
#Override
public boolean onClose() {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
return false;
}
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
}
EfficientAdapter.java
public class EfficientAdapter extends BaseAdapter implements SectionIndexer {
private AlphabetIndexer alphaIndexer;
private String mSections = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private LayoutInflater mInflater;
private Context context;
public EfficientAdapter(Context context, ArrayList<CountriesList> elements) {
mInflater = LayoutInflater.from(context);
this.context=context;
}
public int getCount() {
return CountriesList.name.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.homemplebrowview, null);
holder = new ViewHolder();
holder.text1 = (TextView) convertView
.findViewById(R.id.name);
holder.text2 = (TextView) convertView
.findViewById(R.id.mrn);
holder.text3 = (TextView) convertView
.findViewById(R.id.date);
holder.text4 = (TextView) convertView
.findViewById(R.id.age);
holder.text5 = (TextView) convertView
.findViewById(R.id.gender);
holder.text6 = (TextView) convertView
.findViewById(R.id.wardno);
holder.text7 = (TextView) convertView
.findViewById(R.id.roomno);
holder.text8 = (TextView) convertView
.findViewById(R.id.bedno);
holder.btnList = (Button)convertView.findViewById(R.id.listbutton);
// holder.btnList.setOnClickListener(this);
holder.btnList.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent next=new Intent(context, SeviceDetails.class);
context.startActivity(next);
}
});
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.text1.setText(CountriesList.name[position]);
holder.text2.setText(CountriesList.mrn[position]);
holder.text3.setText(CountriesList.actualstart[position]);
holder.text4.setText(CountriesList.age[position]);
holder.text5.setText(CountriesList.gender[position]);
holder.text6.setText(CountriesList.wardNo[position]);
holder.text7.setText(CountriesList.roomNo[position]);
holder.text8.setText(CountriesList.bedNo[position]);
return convertView;
}
static class ViewHolder {
public Button btnList;
public TextView text8;
public TextView text7;
public TextView text6;
public TextView text5;
public TextView text4;
public TextView text1;
public TextView text2;
public TextView text3;
}
#Override
public void notifyDataSetChanged()
{
super.notifyDataSetChanged();
}
#Override
public int getPositionForSection(int section) {
// If there is no item for current section, previous section will be selected
for (int i = section; i >= 0; i--) {
for (int j = 0; j < getCount(); j++) {
if (i == 0) {
// For numeric section
for (int k = 0; k <= 9; k++) {
// if (StringMatcher.match(String.valueOf(getItem(j).charAt(0)), String.valueOf(k)))
return j;
}
} else {
// if (StringMatcher.match(String.valueOf(getItem(j).charAt(0)), String.valueOf(mSections.charAt(i))))
return j;
}
}
}
return 0;
}
#Override
public int getSectionForPosition(int position) {
return 0;
}
#Override
public Object[] getSections() {
String[] sections = new String[mSections.length()];
for (int i = 0; i < mSections.length(); i++)
sections[i] = String.valueOf(mSections.charAt(i));
return sections;
}
}
IndexableListView.java
public class IndexableListView extends ListView {
private boolean mIsFastScrollEnabled = false;
private IndexScroller mScroller = null;
private GestureDetector mGestureDetector = null;
public IndexableListView(Context context) {
super(context);
}
public IndexableListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public IndexableListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public boolean isFastScrollEnabled() {
return mIsFastScrollEnabled;
}
#Override
public void setFastScrollEnabled(boolean enabled) {
mIsFastScrollEnabled = enabled;
if (mIsFastScrollEnabled) {
if (mScroller == null)
mScroller = new IndexScroller(getContext(), this);
} else {
if (mScroller != null) {
mScroller.hide();
mScroller = null;
}
}
}
#Override
public void draw(Canvas canvas) {
super.draw(canvas);
// Overlay index bar
if (mScroller != null)
mScroller.draw(canvas);
}
#Override
public boolean onTouchEvent(MotionEvent ev) {
// Intercept ListView's touch event
if (mScroller != null && mScroller.onTouchEvent(ev))
return true;
if (mGestureDetector == null) {
mGestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2,
float velocityX, float velocityY) {
// If fling happens, index bar shows
mScroller.show();
return super.onFling(e1, e2, velocityX, velocityY);
}
});
}
mGestureDetector.onTouchEvent(ev);
return super.onTouchEvent(ev);
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return true;
}
#Override
public void setAdapter(ListAdapter adapter) {
super.setAdapter(adapter);
if (mScroller != null)
mScroller.setAdapter(adapter);
}
#Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (mScroller != null)
mScroller.onSizeChanged(w, h, oldw, oldh);
}
}
StringMatcher.java
public class StringMatcher {
public static boolean match(String value, String keyword) {
if (value == null || keyword == null)
return false;
if (keyword.length() > value.length())
return false;
int i = 0, j = 0;
do {
if (isKorean(value.charAt(i)) && isInitialSound(keyword.charAt(j))) {
} else {
if (keyword.charAt(j) == value.charAt(i)) {
i++;
j++;
} else if (j > 0)
break;
else
i++;
}
} while (i < value.length() && j < keyword.length());
return (j == keyword.length())? true : false;
}
private static boolean isKorean(char c) {
return false;
}
private static boolean isInitialSound(char c) {
return false;
}
}
IndexScroller.java
public class IndexScroller {
private static final int STATE_HIDDEN = 0;
private static final int STATE_SHOWING = 1;
private static final int STATE_SHOWN = 2;
private static final int STATE_HIDING = 3;
public IndexScroller(Context context, ListView lv) {
mDensity = context.getResources().getDisplayMetrics().density;
mScaledDensity = context.getResources().getDisplayMetrics().scaledDensity;
mListView = lv;
setAdapter(mListView.getAdapter());
mIndexbarWidth = 20 * mDensity;
mIndexbarMargin = 10 * mDensity;
mPreviewPadding = 5 * mDensity;
}
public void draw(Canvas canvas) {
if (mState == STATE_HIDDEN)
return;
// mAlphaRate determines the rate of opacity
Paint indexbarPaint = new Paint();
indexbarPaint.setColor(Color.BLACK);
indexbarPaint.setAlpha((int) (64 * mAlphaRate));
indexbarPaint.setAntiAlias(true);
canvas.drawRoundRect(mIndexbarRect, 5 * mDensity, 5 * mDensity, indexbarPaint);
if (mSections != null && mSections.length > 0) {
// Preview is shown when mCurrentSection is set
if (mCurrentSection >= 0) {
Paint previewPaint = new Paint();
previewPaint.setColor(Color.BLACK);
previewPaint.setAlpha(96);
previewPaint.setAntiAlias(true);
previewPaint.setShadowLayer(3, 0, 0, Color.argb(64, 0, 0, 0));
Paint previewTextPaint = new Paint();
previewTextPaint.setColor(Color.WHITE);
previewTextPaint.setAntiAlias(true);
previewTextPaint.setTextSize(50 * mScaledDensity);
float previewTextWidth = previewTextPaint.measureText(mSections[mCurrentSection]);
float previewSize = 2 * mPreviewPadding + previewTextPaint.descent() - previewTextPaint.ascent();
RectF previewRect = new RectF((mListViewWidth - previewSize) / 2
, (mListViewHeight - previewSize) / 2
, (mListViewWidth - previewSize) / 2 + previewSize
, (mListViewHeight - previewSize) / 2 + previewSize);
canvas.drawRoundRect(previewRect, 5 * mDensity, 5 * mDensity, previewPaint);
canvas.drawText(mSections[mCurrentSection], previewRect.left + (previewSize - previewTextWidth) / 2 - 1
, previewRect.top + mPreviewPadding - previewTextPaint.ascent() + 1, previewTextPaint);
}
Paint indexPaint = new Paint();
indexPaint.setColor(Color.WHITE);
indexPaint.setAlpha((int) (255 * mAlphaRate));
indexPaint.setAntiAlias(true);
indexPaint.setTextSize(12 * mScaledDensity);
float sectionHeight = (mIndexbarRect.height() - 2 * mIndexbarMargin) / mSections.length;
float paddingTop = (sectionHeight - (indexPaint.descent() - indexPaint.ascent())) / 2;
for (int i = 0; i < mSections.length; i++) {
float paddingLeft = (mIndexbarWidth - indexPaint.measureText(mSections[i])) / 2;
canvas.drawText(mSections[i], mIndexbarRect.left + paddingLeft
, mIndexbarRect.top + mIndexbarMargin + sectionHeight * i + paddingTop - indexPaint.ascent(), indexPaint);
}
}
}
public boolean onTouchEvent(MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
// If down event occurs inside index bar region, start indexing
if (mState != STATE_HIDDEN && contains(ev.getX(), ev.getY())) {
setState(STATE_SHOWN);
// It demonstrates that the motion event started from index bar
mIsIndexing = true;
// Determine which section the point is in, and move the list to that section
mCurrentSection = getSectionByPoint(ev.getY());
mListView.setSelection(mIndexer.getPositionForSection(mCurrentSection));
return true;
}
break;
case MotionEvent.ACTION_MOVE:
if (mIsIndexing) {
// If this event moves inside index bar
if (contains(ev.getX(), ev.getY())) {
// Determine which section the point is in, and move the list to that section
mCurrentSection = getSectionByPoint(ev.getY());
mListView.setSelection(mIndexer.getPositionForSection(mCurrentSection));
}
return true;
}
break;
case MotionEvent.ACTION_UP:
if (mIsIndexing) {
mIsIndexing = false;
mCurrentSection = -1;
}
if (mState == STATE_SHOWN)
setState(STATE_HIDING);
break;
}
return false;
}
public void onSizeChanged(int w, int h, int oldw, int oldh) {
mListViewWidth = w;
mListViewHeight = h;
mIndexbarRect = new RectF(w - mIndexbarMargin - mIndexbarWidth
, mIndexbarMargin
, w - mIndexbarMargin
, h - mIndexbarMargin);
}
public void show() {
if (mState == STATE_HIDDEN)
setState(STATE_SHOWING);
else if (mState == STATE_HIDING)
setState(STATE_HIDING);
}
public void hide() {
if (mState == STATE_SHOWN)
setState(STATE_HIDING);
}
public void setAdapter(Adapter adapter) {
if (adapter instanceof SectionIndexer) {
mIndexer = (SectionIndexer) adapter;
mSections = (String[]) mIndexer.getSections();
}
}
private void setState(int state) {
if (state < STATE_HIDDEN || state > STATE_HIDING)
return;
mState = state;
switch (mState) {
case STATE_HIDDEN:
// Cancel any fade effect
mHandler.removeMessages(0);
break;
case STATE_SHOWING:
// Start to fade in
mAlphaRate = 0;
fade(0);
break;
case STATE_SHOWN:
// Cancel any fade effect
mHandler.removeMessages(0);
break;
case STATE_HIDING:
// Start to fade out after three seconds
mAlphaRate = 1;
fade(3000);
break;
}
}
private boolean contains(float x, float y) {
// Determine if the point is in index bar region, which includes the right margin of the bar
return (x >= mIndexbarRect.left && y >= mIndexbarRect.top && y <= mIndexbarRect.top + mIndexbarRect.height());
}
private int getSectionByPoint(float y) {
if (mSections == null || mSections.length == 0)
return 0;
if (y < mIndexbarRect.top + mIndexbarMargin)
return 0;
if (y >= mIndexbarRect.top + mIndexbarRect.height() - mIndexbarMargin)
return mSections.length - 1;
return (int) ((y - mIndexbarRect.top - mIndexbarMargin) / ((mIndexbarRect.height() - 2 * mIndexbarMargin) / mSections.length));
}
private void fade(long delay) {
mHandler.removeMessages(0);
mHandler.sendEmptyMessageAtTime(0, SystemClock.uptimeMillis() + delay);
}
private Handler mHandler = new Handler() {
#Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (mState) {
case STATE_SHOWING:
// Fade in effect
mAlphaRate += (1 - mAlphaRate) * 0.2;
if (mAlphaRate > 0.9) {
mAlphaRate = 1;
setState(STATE_SHOWN);
}
mListView.invalidate();
fade(10);
break;
case STATE_SHOWN:
// If no action, hide automatically
setState(STATE_HIDING);
break;
case STATE_HIDING:
// Fade out effect
mAlphaRate -= mAlphaRate * 0.2;
if (mAlphaRate < 0.1) {
mAlphaRate = 0;
setState(STATE_HIDDEN);
}
mListView.invalidate();
fade(10);
break;
}
}
};
}
if i add this it works code in mainactivity
listView = (ListView) findViewById(R.id.homelistView);
your are using a custom ListView class, com.woozzu.android.widget.IndexableListView
You have to replace your "ListView " in layout file to a "com.woozzu.android.widget.IndexableListView"
Change your Layout to:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:background="#ff3344"
android:layout_height="fill_parent" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:layout_alignTop="#+id/scrollView1"
android:layout_toRightOf="#+id/scrollView1" >
<com.woozzu.android.widget.IndexableListView
android:id="#+id/homelistView"
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_weight="1.04"
android:dividerHeight="0dip" >
</com.woozzu.android.widget.IndexableListView>
</LinearLayout>
</RelativeLayout>
</LinearLayout>
The solution Suggested by #Anis is the only working solution I found. In addition to that, If you want Click listeners to components on your List View Items, you have to update the Code as mentioned here, https://github.com/denley/IndexableListView/commit/18210a54487ba079bb332fafec709e2de26883db

Custom LinearLayout width - weight placing problem

I asked another questıon and after, I continued to this problem...
Firstly My first Question: how to Custom Button (has two TextFields) on Android
I extended a class form LinearLayout, and I add two buttons in it(width- fill_parent, weight-1).
But they can't place right. If I use LinearLayout insteadof my customClass, it is working right. What Should I do??
This is my class
public class SplitButtonController extends LinearLayout
implements
OnClickListener {
// Toggle buttons
private Vector<XButton2> buttons;
// Listener
private OnClickListener listener;
public SplitButtonController(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater layoutInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.xbutton2, this);
}
public SplitButtonController(Context context) {
super(context);
}
#Override
protected void onFinishInflate() {
super.onFinishInflate();
init();
}
/**
* Initialize the toggle buttons (set images and listeners). It's
* responsibility of the user call this method after he add a ne
*/
public void init() {
buttons = new Vector<XButton2>();
addLayoutButtons();
changeButtonsImage();
setListeners();
}
private void addLayoutButtons() {
int n = getChildCount();
for (int i = 0; i < n; i++) {
View v = getChildAt(i);
if (v instanceof XButton2) {
buttons.add((XButton2) v);
}
}
}
private void changeButtonsImage() {
if (buttons.size() > 1) {
buttons.get(0)
.setBackgroundResource(
com.matriksdata.bavul.R.drawable.schedule_left_button_drawable);
for (int i = 1; i < buttons.size() - 1; i++) {
// buttons.get(i).setBackgroundResource(R.drawable.schedule_left_button_drawable);
}
buttons.get(buttons.size() - 1)
.setBackgroundResource(
com.matriksdata.bavul.R.drawable.schedule_right_button_drawable);
} else {
// TODO:set an image with rounded sides
}
}
private void setListeners() {
for (int i = 0; i < buttons.size(); i++) {
buttons.get(i).setOnClickListener(this);
buttons.get(i).setFocusable(true);
}
}
#Override
public void onClick(View v) {
for (int i = 0; i < buttons.size(); i++) {
XButton2 b = buttons.get(i);
b.setChecked(v == b);
}
}
}
The buttons you added to your SplitButtonController are XButton2, and in your constructor, you are inflating R.layout.xbutton2. This will cause an empty "XButton2" added to your SplitButtonController layout. You don't need to inflate anything if you want to create (or extend) a simple LinearLayout. Then your SplitButtonController code should look like following:
public class SplitButtonController extends LinearLayout
implements
OnClickListener {
// Toggle buttons
private Vector<XButton2> buttons;
// Listener
private OnClickListener listener;
public SplitButtonController(Context context, AttributeSet attrs) {
super(context, attrs);
}
#Override
protected void onFinishInflate() {
super.onFinishInflate();
init();
}
/**
* Initialize the toggle buttons (set images and listeners). It's
* responsibility of the user call this method after he add a ne
*/
public void init() {
buttons = new Vector<XButton2>();
addLayoutButtons();
changeButtonsImage();
setListeners();
}
private void addLayoutButtons() {
int n = getChildCount();
for (int i = 0; i < n; i++) {
View v = getChildAt(i);
if (v instanceof XButton2) {
buttons.add((XButton2) v);
}
}
}
private void changeButtonsImage() {
if (buttons.size() > 1) {
buttons.get(0)
.setBackgroundResource(
com.matriksdata.bavul.R.drawable.schedule_left_button_drawable);
for (int i = 1; i < buttons.size() - 1; i++) {
// buttons.get(i).setBackgroundResource(R.drawable.schedule_left_button_drawable);
}
buttons.get(buttons.size() - 1)
.setBackgroundResource(
com.matriksdata.bavul.R.drawable.schedule_right_button_drawable);
} else {
// TODO:set an image with rounded sides
}
}
private void setListeners() {
for (int i = 0; i < buttons.size(); i++) {
buttons.get(i).setOnClickListener(this);
buttons.get(i).setFocusable(true);
}
}
#Override
public void onClick(View v) {
for (int i = 0; i < buttons.size(); i++) {
XButton2 b = buttons.get(i);
b.setChecked(v == b);
}
}
}

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