lag

问题 I'm using MaterialDatePicker, but it's slow. public class MainActivity extends AppCompatActivity { MaterialDatePicker.Builder<Long> datePickerBuilder; MaterialDatePicker<Long> datePicker; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); datePickerBuilder = MaterialDatePicker.Builder.datePicker(); datePicker = datePickerBuilder.build(); Button btn = findViewById(R.id.btn); btn.setOnClickListener(new View

问题 I'm using MaterialDatePicker, but it's slow. public class MainActivity extends AppCompatActivity { MaterialDatePicker.Builder<Long> datePickerBuilder; MaterialDatePicker<Long> datePicker; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); datePickerBuilder = MaterialDatePicker.Builder.datePicker(); datePicker = datePickerBuilder.build(); Button btn = findViewById(R.id.btn); btn.setOnClickListener(new View

问题 I'm having trouble with something very similar to this question T-sql Reset Row number on Field Change The solution to this question is perfect, works fine. Except when I try with multiple other 'custno', it breaks down. What I mean by that: custno moddate who -------------------------------------------------- 581827 2012-11-08 08:38:00.000 EMSZC14 581827 2012-11-08 08:41:10.000 EMSZC14 581827 2012-11-08 08:53:46.000 EMSZC14 581827 2012-11-08 08:57:04.000 EMSZC14 581827 2012-11-08 08:58:35

问题 I'm using animation in my app and get confused, because animation is lagging on device, on simulator everything seems OK. First I tried to use [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.3]; [UIView setAnimationCurve:UIViewAnimationCurveEaseOut]; And before commit animation there were something like ~30 lines of code with "if" blocks so I thought this might cause the problem, but then I start to use [UIView animateWithDuration:0.3 delay:0.0 options:

问题 I would like to know a good way of filling part of a Pygame surface. The best example of what I want is the way the paint bucket works in MS Paint. For example, if there were a circle drawn in black on a white surface, I want to fill the white inside the circle(or whatever the shape might be). To give you an idea of what I'm working on, I'm making a pixel art tool and I'm working on a feature similar to the bucket from MS Paint. (Watch This: http://imgur.com/a/ogtPV) I've tried using Surface

问题 I would like to know a good way of filling part of a Pygame surface. The best example of what I want is the way the paint bucket works in MS Paint. For example, if there were a circle drawn in black on a white surface, I want to fill the white inside the circle(or whatever the shape might be). To give you an idea of what I'm working on, I'm making a pixel art tool and I'm working on a feature similar to the bucket from MS Paint. (Watch This: http://imgur.com/a/ogtPV) I've tried using Surface

问题 I am wondering if there is an easy way to create a lag (or lead) of a time series variable in Julia according to a by group or condition? For example: I have a dataset of the following form julia> df1 = DataFrame(var1=["a","a","a","a","b","b","b","b"], var2=[0,1,2,3,0,1,2,3]) 8×2 DataFrame │ Row │ var1 │ var2 │ │ │ String │ Int64 │ ├─────┼────────┼───────┤ │ 1 │ a │ 0 │ │ 2 │ a │ 1 │ │ 3 │ a │ 2 │ │ 4 │ a │ 3 │ │ 5 │ b │ 0 │ │ 6 │ b │ 1 │ │ 7 │ b │ 2 │ │ 8 │ b │ 3 │ And I want to create a

问题 I am wondering if there is an easy way to create a lag (or lead) of a time series variable in Julia according to a by group or condition? For example: I have a dataset of the following form julia> df1 = DataFrame(var1=["a","a","a","a","b","b","b","b"], var2=[0,1,2,3,0,1,2,3]) 8×2 DataFrame │ Row │ var1 │ var2 │ │ │ String │ Int64 │ ├─────┼────────┼───────┤ │ 1 │ a │ 0 │ │ 2 │ a │ 1 │ │ 3 │ a │ 2 │ │ 4 │ a │ 3 │ │ 5 │ b │ 0 │ │ 6 │ b │ 1 │ │ 7 │ b │ 2 │ │ 8 │ b │ 3 │ And I want to create a

问题 I am wondering if there is an easy way to create a lag (or lead) of a time series variable in Julia according to a by group or condition? For example: I have a dataset of the following form julia> df1 = DataFrame(var1=["a","a","a","a","b","b","b","b"], var2=[0,1,2,3,0,1,2,3]) 8×2 DataFrame │ Row │ var1 │ var2 │ │ │ String │ Int64 │ ├─────┼────────┼───────┤ │ 1 │ a │ 0 │ │ 2 │ a │ 1 │ │ 3 │ a │ 2 │ │ 4 │ a │ 3 │ │ 5 │ b │ 0 │ │ 6 │ b │ 1 │ │ 7 │ b │ 2 │ │ 8 │ b │ 3 │ And I want to create a

问题 I am wondering if there is an easy way to create a lag (or lead) of a time series variable in Julia according to a by group or condition? For example: I have a dataset of the following form julia> df1 = DataFrame(var1=["a","a","a","a","b","b","b","b"], var2=[0,1,2,3,0,1,2,3]) 8×2 DataFrame │ Row │ var1 │ var2 │ │ │ String │ Int64 │ ├─────┼────────┼───────┤ │ 1 │ a │ 0 │ │ 2 │ a │ 1 │ │ 3 │ a │ 2 │ │ 4 │ a │ 3 │ │ 5 │ b │ 0 │ │ 6 │ b │ 1 │ │ 7 │ b │ 2 │ │ 8 │ b │ 3 │ And I want to create a