setbackground

I use the SetBackground method when I use the Android version 4.0.4, the program crashes.Tip:caused By:java.lang.NoSuchMethodError:android.widget.ImageView.setBackgroundAll information is related to the Android version of the system.By looking for a

Brief introductionI believe everyone has used various layouts, and for various layouts will be used to set the background image this functionAndroid phones are mostly on the market at 4.4.4 or above, but older phones still exist.So for Android

1. setbackground (drawable backgroun) is a drawable object, which is used to set the background image of the view. The drawable object can obtain Getresources (). getdrawable (R. drawable. xx) 2. setbackgroundcolor (INT color). Its parameter is

This topic is my one course design, is also my first time to finish a small thing independently, to tell the truth, last night that moment was very fulfilling. The whole person was happy to jump up in the study room. Because before has been

Java non-recursive maze This is my course design. It is also the first time I have done this independently. To be honest, last night I felt very fulfilled. The whole person is happy to pop up in the study room. Because I have been a self-taught Java

AWT preliminary-Frame and Panel, awtframepanel GUI and AWT GUI: graphical User Interface AWT: Abstract Window Toolkit Abstract Window tool set Previous program output results are displayed on the console. After learning AWT, you can program to

Perfect imitation of the 2048 game, is based on a netizen's 2048 change. Block.java Import javax.swing.*; Import java.awt.*; public class Block extends JLabel {private int value; The public block () {value = 0;//initialization value is 0

The client contains 10 files, corresponding to 9 forms and a custom friendsinfo class, used to save information about friends and strangers obtained from the server. the compiling process of the client is the process of learning how to use Java

GUI Graphics user interface GUI AWT Abstract Window Toolkit abstract Windows Development Package Component Manager Layout Manager Event handling Java graphics Window Event AWT abstracts graphical elements such as

// Jcalendar. java Import java. awt. BorderLayout; Import java. awt. Color;Import java. awt. Dimension;Import java. awt. GridLayout;Import java. awt. SystemColor;Import java. awt. event. ActionEvent;Import java. awt. event. KeyEvent;Import java. awt.

JTable cells are drawn by the cell painter, which is a class for executing the TableCellRenderer interface. The TableCellRenderer interface defines the unique getTableCellRendererComponent method, returns a reference to Component, and the second

A recent need to complete a demand: with swing a tree-like menu, with a Level two menu, click the First menu to expand the Level two menu, and the number of two-level menu more than the Preview view will appear scroll bar. Because of the lack of

The main content of this article: Basic settings for Qtablewidget Set some fields of Qtablewidget not editable and background color Qtablewidget inserting cells into a cell Qtablewidget Sort By field value Insert a checkbox

Boundary layoutpublic class Borderlayouttest extends jframe{Public Borderlayouttest () {This.setsize (900,600);This.setdefaultcloseoperation (Jframe.exit_on_close);This.settitle ("Border layout");This.setlocationrelativeto (null);//Set the form to

1. Interface (graphical-front-end section) Graphical use for interaction, whether it is in the form of text to the user choice, or graphic mode of choice is an interactive way. In Java if we need to use the graphical interface, we have to

The setxormode (true) method is used to make the target color the result value of the XOR operation of the source and target colors. When the parameter is false, the difference or effect of the drawing is canceled. Before using setxormode, you

Character calculator JFrame form software edition JPanel JTextField JTextArea JButtton JLabel setContentPane, Import java. awt. borderLayout; import java. awt. color; import java. awt. gridLayout; import java. awt. event. actionEvent; import java.

First, the purpose of the experiment:Familiar with the design technology of divide and conquer algorithmSecond, the experimental requirements:1, according to the content requirements of the teaching materials, complete the "board coverage Problem"

AWTComponet & ContainerFrame/*Example Name: Frame Application Example * source file name: Testframe.java * Important: Frame component creation and display settings*/Importjava.awt.*; Public classTestframe { Public Static voidMain (String args[])

Package Lu;Import java. AWT .*;Import java. AWT. event .*;Import javax. Swing .*; Public class Mine extends mouseadapter {Private jframe mainframe;Private int [] [] data;Private jbutton [] [] buttons;Private jbutton startjb;Private Label L;Private