Develop Reference

Cart Count increment & decrement while clicking button

I populates cart items into the list using cursor adapter. My ListView item has
Price TextView
Product Name TextView
Count TextView
Increment Button
Decrement Buttton
When I click the increment / decrement button the value is incremented/ decremented in a certain condition of AFTER TOUCHING THE LISTVIEW ROW,otherwise the count is not changed.
In some case, if I click the 1st row increment button ,item count is incremented in 2nd row.
NOTE:
1. I am populating List using Cursor Adapter.
2. Using Increment & Decrement clicklistener in activity class.
Here is my code:
cartList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(final AdapterView<?> parent, View itemView, final int position, final long rowId) {
txt_cartProduct = (TextView) itemView.findViewById(R.id.cartProduct);
txt_cartQuantity = (TextView) itemView.findViewById(R.id.cartQuantity);
txt_cartPrice = (TextView) itemView.findViewById(R.id.cartPrice);
txt_cartPriceDum = (TextView) itemView.findViewById(R.id.cartPriceDum);
txt_cartCount = (TextView) itemView.findViewById(R.id.cartCount);
img_ivDecrease = (ImageView) itemView.findViewById(R.id.ivDecrease);
img_ivIncrease = (ImageView) itemView.findViewById(R.id.ivIncrease);
but_addTowish = (Button) itemView.findViewById(R.id.addTowish);
but_remove = (Button) itemView.findViewById(R.id.remove);
img_ivIncrease.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
strPrice = txt_cartPrice.getText().toString();
price = Integer.parseInt(strPrice);
int counter = 0;
try {
counter = Integer.parseInt(txt_cartCount.getText().toString());
} catch (NumberFormatException e) {
e.printStackTrace();
}
counter++;
if (counter > 0) {
txt_cartCount.setText(Integer.toString(counter));
txt_cartPrice.setVisibility(View.GONE);
txt_cartPriceDum.setVisibility(View.VISIBLE);
quantity = txt_cartCount.getText().toString();
total = (Integer.parseInt(quantity)) * (price);
netA = String.valueOf(total);
sum += price;
if (sum == 0) {
netAmount = Integer.parseInt(txt_cartPriceDum.getText().toString());
}
netAmount = sum;
Log.e("Sum is", String.valueOf(sum));
txt_cartPriceDum.setText(String.valueOf(total));
cartCount = Integer.parseInt(quantity);
Toast.makeText(context, "netAmount" + netAmount + "\n" + "Total" + total, Toast.LENGTH_SHORT).show();
if (counter == 1) {
cartPrice = price;
cartSum = sum;
}
if (counter == 0) {
cartPrice = 0;
cartSum = 0;
cartCount = 0;
Toast.makeText(context, "Minimum Item is 1", Toast.LENGTH_SHORT).show();
}
int count_check = 1;
if (count_check >= position) {
count_check++;
} else if (count_check == 0) {
Toast.makeText(context, "Minimum Item is 1", Toast.LENGTH_SHORT).show();
}
}
}
});
img_ivDecrease.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
strPrice = txt_cartPrice.getText().toString();
price = Integer.parseInt(strPrice);
int counter = 0;
try {
counter = Integer.parseInt(txt_cartCount.getText().toString());
} catch (NumberFormatException e) {
e.printStackTrace();
}
counter--;
if (counter > 0) {
txt_cartCount.setText(Integer.toString(counter));
txt_cartPrice.setVisibility(View.GONE);
txt_cartPriceDum.setVisibility(View.VISIBLE);
quantity = txt_cartCount.getText().toString();
total = (Integer.parseInt(quantity)) * (price);
netA = String.valueOf(total);
sum -= price;
if (sum == 0) {
netAmount = Integer.parseInt(txt_cartPriceDum.getText().toString());
}
Log.e("Sum - is", String.valueOf(sum));
txt_cartPriceDum.setText(String.valueOf(total));
cartCount = Integer.parseInt(quantity);
Toast.makeText(context, "netAmount" + netAmount + "\n" + "Total" + total, Toast.LENGTH_SHORT).show();
if (counter == 1) {
cartPrice = price;
cartSum = sum;
}
if (counter == 0) {
cartPrice = 0;
cartSum = 0;
cartCount = 0;
}
}
}
});
}
});

You can use setTag() and getTag() methods for saving the counter value in each list item.
Refer this answer for more details.

How to get selected item count from custom listview in android

How to get selected item count from custom listview.
viewHolder.imgbtnp.setOnClickListener(new View.OnClickListener() {
Product pp = productdata.get(position);
#Override
public void onClick(View v) {
if (pp.getUserQty() < 10)
pp.setUserQty(pp.getUserQty() + 1);
productdata.set(position, pp);
viewHolder.tv_qty.setText(String.valueOf(pp.getUserQty()));
ProductAdapter.this.notifyDataSetChanged();
}
});
viewHolder.imgbtnm.setOnClickListener(new View.OnClickListener() {
Product pp = productdata.get(position);
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (pp.getUserQty() > 0)
pp.setUserQty(pp.getUserQty() - 1);
productdata.set(position, pp); viewHolder.tv_qty.setText(String.valueOf(pp.getUserQty()));
ProductAdapter.this.notifyDataSetChanged();
}
});
int totalCartValue = 0;
if (productdata != null && productdata.size() > 0) {
for (int i = 0; i < productdata.size(); i++) {
Product hi = productdata.get(i);
totalCartValue = totalCartValue + hi.getProductValue();
}
viewHolder.tv_value.setText("" + totalCartValue);
Log.d(Config.tag, "total cart size" + totalCartValue);
}

My code throws ArrayIndexOutOfBoundException but i think it's ok

here is my code:
public class TrainingActivity extends Activity {
private EditText etIn1, etIn2, etDesired;
private TextView prevInput;
int W[][] = new int[2][];
int X[][] = new int[30][];
int w0=0, w1=0, w2=0, p=1, sum=0, clicks=0;
private Button nxtData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.training_activity);
View backgroundImage = findViewById(R.id.background);
Drawable background = backgroundImage.getBackground();
background.setAlpha(40);
etIn1= (EditText) findViewById(R.id.etInput1);
etIn2 = (EditText) findViewById(R.id.etInput2);
etDesired = (EditText) findViewById(R.id.etDesired);
prevInput = (TextView) findViewById(R.id.prevInput);
nxtData = (Button) findViewById(R.id.nextData);
nxtData.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
int sum = 0;
++clicks;
int intetIn1 = Integer.parseInt(etIn1.getText().toString());
int intetIn2 = Integer.parseInt(etIn2.getText().toString());
int intetDesired = Integer.parseInt(etDesired.getText().toString());
X[clicks-1] = new int[] {intetIn1, intetIn2, 1};
prevInput.setText("Last Inputs: (" + intetIn1 + ", " + intetIn2 +
", " + intetDesired + ")");
if(clicks == 1) {
if(intetDesired == 1) {
W[0] = new int[] {intetIn1, intetIn2, 1};
W[1] = W[0];
} else if(intetDesired == (-1)){
W[0] = new int[] {-intetIn1, -intetIn2, -1};
W[1] = W[0];
}
} else if(clicks > 1) {
for(int i=0; i<3; i++){
sum = sum + W[clicks-1][i] * X[clicks-1][i];
} if(sum>0 && intetDesired==1) {
W[clicks] = W[clicks-1];
} else if(sum<0 && intetDesired==(-1)) {
W[clicks] = W[clicks-1];
} else if(sum<=0 && intetDesired==1) {
for(int i=0; i<3; i++) {
W[clicks][i] = W[clicks-1][i] + X[clicks-1][i];
}
} else if(sum>=0 && intetDesired==(-1)) {
for(int i=0; i<3; i++) {
W[clicks][i] = W[clicks-1][i] - X[clicks-1][i];
}
}
}
Toast.makeText(getApplicationContext(), "" + clicks,
Toast.LENGTH_SHORT).show();
System.out.println(X[0][0]);
etIn1.setText("");
etIn2.setText("");
etDesired.setText("");
}
});
}}
and here is the Exception:
java.lang.ArrayIndexOutOfBoundsException: length=2; index=2
the clicks is the number of times that user click the button. at first it's ok but when i try and add some more inputs it crashes. can you tell why this is happening?

index of array is always less than length as index starts form 0 whereas length from 1 therefore X[clicks-1] is causing the problem

What is the initial value of click variable.
Can you post more code related. And for the first time if click is 0 then
X[clicks-1] = new int[] {intetIn1, intetIn2, 1};
this says you are store these value at click-1 th position which is not even initialized.. so
int X[] = new int[]{intetIn1, intetIn2, 1};
would be better.

Android playing video fullscreen in a new activity on button click

I'm streaming a video in my app, and it works fine.
The problem is that when I try to make it full screen (in a new activity or otherwise), the screen is blank.
I have tried doing it without starting a new activity, as suggested here:
In my main activity:
butFullScreen.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(isFS)
setContentView(R.layout.activity_full_screen_video);
else
setContentView(R.layout.activity_starting_point);
}
});
I've also tried opening it in a new activity (which I prefer):
butFullScreen.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Start fs intent
Intent myIntent = new Intent(StartingPoint.this, FullScreenVideo.class);
StartingPoint.this.startActivity(myIntent);
}
});
Where FullScreenVideo:
public class FullScreenVideo extends StartingPoint{
//private VideoView vv;
public FullScreenVideo(){
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().hide();
setContentView(R.layout.activity_full_screen_video);
vv.start();
}
}
And activity_full_screen_video:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:background="#ff000000">
<VideoView
android:id="#+id/vv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
And in my manifest:
<activity
android:name=".FullScreenVideo"
android:label="#string/app_name"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation|screenSize" />
It doesn't show any error or crash, just a blank screen. Also, I'm not using the media controller, so answers without that would be appreciated :)
Edit::
StartingPoint:
public class PlayVid extends ActionBarActivity {
int play = -1;
int k;
int m = 0;
int where;
int pausePressed = 0;
int displaySub = 0;
String curSub = " ";
ArrayList<Stime> timeArray = new ArrayList<Stime>();
Button but;
Button butStop;
Button butSub;
Button butFS;
TextView subs, log;
VideoView vv;
ProgressBar pBar;
int isFS, space;
String srt = "00:00:01,478 --> 00:00:04,020\n" +
"VimeoSrtPlayer Example\n" +
"\n" +
"00:00:05,045 --> 00:00:09,545\n" +
"Support for <i>italic</i> font\n" +
"\n" +
"00:00:09,378 --> 00:00:13,745\n" +
"Support for <b>bold</b> font\n" +
"\n" +
"00:00:14,812 --> 00:00:16,144\n" +
"Multi\n" +
"Line\n" +
"Support ;)\n" +
"\n" +
"00:00:18,211 --> 00:00:21,211\n" +
"Fonts: DejaVu\n" +
"http://dejavu-fonts.org\n" +
"\n" +
"00:00:22,278 --> 00:00:25,678 \n" +
"END OF EXAMPLE FILE";
subParse sp = new subParse(this, srt);
#Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarIndeterminateVisibility(true);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_starting_point);
pBar = (ProgressBar) findViewById(R.id.progressBar);
subs = (TextView) findViewById(R.id.subtitleBox);
log = (TextView) findViewById(R.id.logBox);
but = (Button) findViewById(R.id.but);
butStop = (Button) findViewById(R.id.butStop);
butSub = (Button) findViewById(R.id.butSub);
butFS = (Button) findViewById(R.id.butFS);
vv = (VideoView) findViewById(R.id.vv);
vv.setVideoPath("#string/video_link");
String[] lines = {" \n", " \n"};
sp.parseSub(srt);
subs.setText("--Click Play to start--\n--Click on SUB to view subtitles--");
final String[] sub2 = log.getText().toString().split(System.getProperty("line.separator"));
final subHelper sob = new subHelper(this, sub2);
final onPauseHelper oph = new onPauseHelper();
final fsHelper fsh = new fsHelper(this);
final playHelper ph = new playHelper();
timeArray.add(new Stime(vv.getDuration(), 0));
but.setOnClickListener(new View.OnClickListener() {
long startTime = 0, trop = 0;
int space = 0;
public void onClick(View v) {
subs.setText(curSub);
fsh.space = space;
if (fsh.isFS == 1) {
//Chill
} else if (play == 0 || play == -1) {
vv.start();
pBar.setVisibility(View.VISIBLE);
if (vv.isPlaying()) {
startTime = Calendar.getInstance().getTimeInMillis();
pBar.setVisibility(View.INVISIBLE);
//Play
if (play == -1) {
sob.setDefaults();
}
oph.putAttr(3, startTime);
but.setText("||");
but.setTextColor(Color.parseColor("#ffaaaaaa"));
if (k < m) {
play = 1;
final Handler handler = new Handler();
final Runnable run = new Runnable() {
#Override
public void run() {
if (k < m && play == 1 && fsh.isFS == 0) {
if (pausePressed == 0) {
oph.putAttr(0, Calendar.getInstance().getTimeInMillis());
} else {
oph.putAttr(0, startTime);
where--;
}
//oph.nextPressed=Calendar.getInstance().getTimeInMillis();
if (space == 0) {
space = 1;
fsh.space = space;
play = sob.subPlay(startTime, 0);
fsh.play = play;
trop = (timeArray.get(k).getTime(1) - timeArray.get(k).getTime(0));
handler.postDelayed(this, Math.abs(trop > 0 ? (trop - oph.done) : 0));
} else if (space == 1) {
space = 0;
fsh.space = space;
play = sob.subPlay(startTime, 1);
fsh.play = play;
trop = timeArray.get(k + 1).getTime(0) - timeArray.get(k).getTime(1);
handler.postDelayed(this, Math.abs(trop > 0 ? (trop - oph.done) : 0));
k++;
}
oph.putAttr(1, Calendar.getInstance().getTimeInMillis());
pausePressed = 0;
sob.pp = 0;
oph.reset();
oph.done = 0;
} else if (k >= m && fsh.isFS == 0) {
final Runnable run = new Runnable() {
#Override
public void run() {
but.setText("↻");
but.setTextColor(Color.parseColor("#ffcdcdcd"));
subs.setText("Play Again?");
handler.removeCallbacks(this);
play = -1;
fsh.play = play;
//ph.saveState(play,0,k,0,curSub,displaySub);
curSub = " ";
}
};
while (vv.isPlaying()) {
}
handler.postDelayed(run, 0);
}
}
};
if (k == 0)
handler.postDelayed(run, (timeArray.get(0).getTime(0)));
else if (k < m) handler.postDelayed(run, 0);
}
}
} else if (play == 1) {
//Pause
vv.pause();
oph.reset();
oph.putAttr(2, Calendar.getInstance().getTimeInMillis());
subs.setText(curSub);
pausePressed = 1;
oph.done = +oph.getProg();
sob.pp++;
but.setText("▶");
but.setTextColor(Color.parseColor("#ffcdcdcd"));
if (k < m) {
if (space == 0) {
space = 1;
fsh.space = space;
} else if (space == 1) {
space = 0;
fsh.space = space;
}
play = sob.subPause(oph.getAttr(2));
fsh.play = play;
}
}
}
});
butStop.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vv.stopPlayback();
sob.setDefaults();
play = 0;
fsh.play = play;
but.setText("▶");
subs.setText("--Click Play to start--");
curSub = " ";
}
});
butSub.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (displaySub == 0) {
displaySub = 1;
subs.setText(curSub);
butSub.setTextColor(Color.parseColor("#ffaaaaaa"));
} else if (displaySub == 1) {
displaySub = 0;
subs.setText(" ");
butSub.setTextColor(Color.parseColor("#ffcdcdcd"));
}
}
});
butFS.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Start fs intent
Intent myIntent = new Intent(PlayVid.this, TwoFullScreenVideo.class);
PlayVid.this.startActivity(myIntent);
}
});
}
}
FullScreenVideo:
public class FullScreenVideo extends StartingPoint {
fsHelper fsh;
onPauseHelper oph;
subHelper sob;
playHelper ph;
protected PlayVid context;
TextView subs;
Button but, butStop, butSub, butFS;
public FullScreenVideo(){}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().hide();
setContentView(R.layout.activity_full_screen_video);
subs = (TextView) findViewById(R.id.subtitleBox);
but = (Button) findViewById(R.id.but);
butStop = (Button) findViewById(R.id.butStop);
butSub = (Button) findViewById(R.id.butSub);
butFS = (Button) findViewById(R.id.butFS);
vv = (VideoView) findViewById(R.id.vv);
butFS.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
FullScreenVideo.this.finish();
}
});
}
}

Stop Watch doesn't work in background mode

I have a stop watch, it work right, but when i press home button or button closing bell and reopen it after some time, I see wrong time in my stop watch. Tell me please what I can do to solve this problem ?
public class Stopwatch extends Activity {
Timer mTimer;
int second_f_p = 0, second_s_p = 0, millisecond = 0;
int minute_f_p = 0, minute_s_p;
int hour_f_p = 0, hour_s_p = 0;
int numberOfLap = 0;
TextView tv;
TextView TVlap;
Button btn_start;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stopwatch);
btn_start = (Button) this.findViewById(R.id.button1);
tv = (TextView) this.findViewById(R.id.tvTime);
btn_start.setOnClickListener(new View.OnClickListener() {#Override
public void onClick(View arg0) {
btn_start.setClickable(false);
mTimer = new Timer();
mTimer.schedule(new TimerTask() {
#Override
public void run() {
timerMethod();
}
}, 0, 100);
}
});
Button btn_stop = (Button) this.findViewById(R.id.button2);
btn_stop.setOnClickListener(new View.OnClickListener() {#Override
public void onClick(View v) {
btn_start.setClickable(true);
mTimer.cancel();
}
});
Button btn_reset = (Button) this.findViewById(R.id.button4);
btn_reset.setOnClickListener(new View.OnClickListener() {#Override
public void onClick(View v) {
second_f_p = 0;
second_s_p = 0;
minute_f_p = 0;
minute_s_p = 0;
millisecond = 0;
hour_f_p = 0;
hour_s_p = 0;
numberOfLap = 0;
TVlap.setText("");
tv.setText(String.valueOf(hour_f_p) + String.valueOf(hour_s_p) + ":" + String.valueOf(minute_f_p) + String.valueOf(minute_s_p) + ":" + String.valueOf(second_f_p) + String.valueOf(second_s_p) + "." + String.valueOf(millisecond));
}
});
TVlap = (TextView) this.findViewById(R.id.tvLap);
Button btn_lap = (Button) this.findViewById(R.id.button3);
btn_lap.setOnClickListener(new View.OnClickListener() {#Override
public void onClick(View v) {
numberOfLap++;
TVlap.setText(TVlap.getText() + String.valueOf(numberOfLap) + ". " + String.valueOf(hour_f_p) + String.valueOf(hour_s_p) + ":" + String.valueOf(minute_f_p) + String.valueOf(minute_s_p) + ":" + String.valueOf(second_f_p) + String.valueOf(second_s_p) + "." + String.valueOf(millisecond) + "\n");
}
});
}
private void timerMethod() {
this.runOnUiThread(doSomething);
}
private final Runnable doSomething = new Runnable() {#Override
public void run() {
millisecond++;
if (millisecond == 10) {
second_s_p++;
millisecond = 0;
}
if (second_s_p == 10) {
second_f_p++;
second_s_p = 0;
}
if (second_f_p == 6) {
minute_s_p++;
second_f_p = 0;
}
if (minute_s_p == 10) {
minute_f_p++;
minute_s_p = 0;
}
if (minute_f_p == 6) {
hour_s_p++;
minute_f_p = 0;
}
if (hour_s_p == 10) {
hour_f_p++;
hour_s_p = 0;
}
if (hour_f_p == 9 && hour_s_p == 9) {
second_f_p = 0;
second_s_p = 0;
minute_f_p = 0;
minute_s_p = 0;
hour_f_p = 0;
hour_s_p = 0;
}
tv.setText(String.valueOf(hour_f_p) + String.valueOf(hour_s_p) + ":" + String.valueOf(minute_f_p) + String.valueOf(minute_s_p) + ":" + String.valueOf(second_f_p) + String.valueOf(second_s_p) + "." + String.valueOf(millisecond));
}
};
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_stopwatch, menu);
return true;
}
}