view

问题 I am trying to programmatically set / or change the embedded View Controller inside a Controller View . I have 3 different View Controllers, that I would like to show in the Container View, all depending on if the user is logged in or not. I have looked around and tried a bunch of code, I found one that worked, but the code changed the self view, and not the view containers view. A lot of the code I have tried have also not been in Swift 3, so as a new app developer, this has been quite

问题 I am trying to programmatically set / or change the embedded View Controller inside a Controller View . I have 3 different View Controllers, that I would like to show in the Container View, all depending on if the user is logged in or not. I have looked around and tried a bunch of code, I found one that worked, but the code changed the self view, and not the view containers view. A lot of the code I have tried have also not been in Swift 3, so as a new app developer, this has been quite

问题 Is it possible to resize by pulling the matrix on the 4 side of the view? I can resize from a single point to a ratio like this. The example above works as follows: protected boolean onTouchDown(@NonNull MotionEvent event) { oldDistance = (float) Math.sqrt((midPoint.x-event.getX()) * (midPoint.x-event.getX()) + (midPoint.y-event.getY()) * (midPoint.y-event.getY())); ... } float newDistance = (float) Math.sqrt((midPoint.x-event.getX()) * (midPoint.x-event.getX()) + (midPoint.y-event.getY()) *

问题 I'm drawing a table using SwiftUI that has too many rows and columns to fit into the screen width / height. In this case, I cannot align the view as leading but is somehow always centered. How can I align them top leading? Here is the view that draws the table: struct TableView: View { let columnCount: Int = 9 let rowCount: Int = 14 var body: some View { VStack(alignment: .leading, spacing: 20) { ScrollView([.vertical, .horizontal], showsIndicators: false) { GridStack(rows: self.rowCount,

问题 I'm drawing a table using SwiftUI that has too many rows and columns to fit into the screen width / height. In this case, I cannot align the view as leading but is somehow always centered. How can I align them top leading? Here is the view that draws the table: struct TableView: View { let columnCount: Int = 9 let rowCount: Int = 14 var body: some View { VStack(alignment: .leading, spacing: 20) { ScrollView([.vertical, .horizontal], showsIndicators: false) { GridStack(rows: self.rowCount,

问题 I'm drawing a table using SwiftUI that has too many rows and columns to fit into the screen width / height. In this case, I cannot align the view as leading but is somehow always centered. How can I align them top leading? Here is the view that draws the table: struct TableView: View { let columnCount: Int = 9 let rowCount: Int = 14 var body: some View { VStack(alignment: .leading, spacing: 20) { ScrollView([.vertical, .horizontal], showsIndicators: false) { GridStack(rows: self.rowCount,

问题 I have try to divide the screen into 4 equal parts but got problem. <GridLayout android:rowCount="2" android:columnCount="2" android:layout_width="match_parent" android:layout_height="match_parent"> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="1" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="1" />

问题 I have try to divide the screen into 4 equal parts but got problem. <GridLayout android:rowCount="2" android:columnCount="2" android:layout_width="match_parent" android:layout_height="match_parent"> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="1" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="1" />

问题 I have try to divide the screen into 4 equal parts but got problem. <GridLayout android:rowCount="2" android:columnCount="2" android:layout_width="match_parent" android:layout_height="match_parent"> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="1" android:layout_row="0" /> <View android:background="@drawable/rectangle" android:layout_column="0" android:layout_row="1" />

问题 The run method in my Job class, does some stuff (the details are irrelevant) and outputs 2 arrays of doubles. I want to display these arrays in a results view which I have created with a Table and 2 columns, one for each array. How can I reference the view and display these arrays in it at the end of the run method (in the Job class)? Even if you cannot help me with the answer, I would be happy if someone can point me in some direction because I have no idea. The only thing I could think of