:
public int getIntrinsicHeight() { return -1; }
The height returns-1. It's time to see the line!
From the source code, as long as the setDivider interface of ListView is called, mDividerHeight is set to 0 or-1, so you cannot see the line at all. If you want to see the line, you need to reverse the call order, as follows:
listView.setDivider(new ColorDrawable(Color.GRAY)); listView.setDividerHeight(1);
Here, I do not comment on the source code, but I personally t
Reprint please indicate the source: http://blog.csdn.net/lmj623565791/article/details/44098729, this article from: "Zhang Hongyang Blog" 1, overviewThe creation of this blog, is because, the group of friends to send me a warm, and then asked me how to achieve the top of the Viewpager indicator font discoloration, this is:Probably the app of the headlines today, the magical place is that when switching Viewpager page, the top indicator changed to the font col
Recently, while looking for a job to improve the previous project. Before the Android Junior level project is imitating the cool dog music player. Download an apk file, change the suffix, unzip it, and then follow the layout of the official app to get the picture done. Remember the cool dog home There are several main icons, extracted after the white plus transparent combination, but the official applicatio
In the process of development, often in order to beautify the interface needs, will modify the default appearance of the button, and because the Android button has three states-default, is clicked, is selected. So, if you want to change the appearance of the button, you need to make changes to these three situations, perhaps in the past, we are most likely to think of is the manual monitoring of button sele
When adding text in TextView, sometimes you need to change some text font color, today learned three ways to share 1. Set the font color directly in the configuration XML file under the layout file by adding android:textcolor= "#FFFFFF" To change the colorBut this effect only allows the font to display a color2. In act
You will often encounter a change to the color of the menu font, and you will encounter one today. There is a menu on the action that is black and wants to change to white. Methods are as follows stylename= "Email.theme"Parent= "@android: Style/theme.funui"> Itemname= "Android:windowfullscreen">TrueItem>
Composeshader (Shadera, Shaderb, PorterDuff.Mode.DST); Combines two rendering effects. Combine with Porterduff.modelineargradientNew LinearGradient (0, 0, bitmap.getwidth (), Bitmap.getheight (), 0x470000ff,0xefffff00, Shader.TileMode.CLAMP);Within a certain area. To make a linear change between two colors in a certain rendering modeNew LinearGradient (0, 0, bitmap.getwidth (), Bitmap.getheight (), New int[]{0xffabc777, 0x2300ff00, 0X470000FF, 0XEFFF
to let the user click the button to drive the change text color * *public void OnClick (View v){if (Colornum {Mtext.settextcolor (Mcolors[colornum]);colornum++;}Elsecolornum=0;}});Fontbutton.setonclicklistener (New Button.onclicklistener () {public void OnClick (View v) {Mtext.settypeface (Typeface.createfromasset (Getassets (), "Fonts/handmadetypewriter.ttf"));//Set FontFontbutton.settypeface (Typeface.de
The button's Click Effect is very simple, so that I am lazy when the UI tells me that the button font color should be changed as the background changes. I didn't hesitate to tell him to cut two graphs and then think about it. So I learned how to add a button-click Font Color change effect.
1. First you need to add a few colo
TextView text State one , TextView text color TextColor Focus effect
The code is as follows
Copy Code
Android:id= "@+id/tv_quit"Android:layout_width= "Wrap_content"android:layout_height= "Wrap_content"Android:textcolor= "@drawable/list_item_color"/>List_item_color file
TextView text State two , Android textview text Folding effect
This example to achieve the effect of
I coded style, first to show you the effect of the picture, the parents feel the effect is good, very satisfied, please continue to read down.
Before, also wrote the use of Android two-dimensional code to generate color two-dimensional code and logo two-dimensional code, also know that you can use QRCode and zxing two ways, and then this one is also to write two-dimensional code using Barcodeformat.qr_
directly on the USB drive, that is not the boot USB drive)"If you have PE in the USB stick, you can just copy it in and try it."5, this is a list of files after burning (I did not choose to hide, or you will not see)6, restart, enter the Quick Start mode (Common keys: F12, F8, F2, ESC, more specific to your computer brand)7, select the first item ("U disk temporary Mode")8, if the screen card, just press a key can continue9, the Android page has been
Android spatial styles mainly include background images or colors in various states of the control, and the font color in the control.
Here, I want to explain what a status means. The controls in android have the following states:NormalWhether state_enabled is validState_focused focus?Whether state_pressed is pressedAmong them, state_focused and state_pressed can
, Shaderb, PorterDuff.Mode.DST); Combine two rendering effects to Porterduff.modeLinearGradientNew LinearGradient (0, 0, bitmap.getwidth (), Bitmap.getheight (), 0x470000ff,0xefffff00, Shader.TileMode.CLAMP);Linear variation between two colors within a certain area, in a certain rendering modeNew LinearGradient (0, 0, bitmap.getwidth (), Bitmap.getheight (), New int[]{0xffabc777, 0x2300ff00, 0X470000FF, 0XEFFFFF00}, New float[]{0.1f, 0.3f, 0.5f, 1.0f}, Shader.TileMode.CLAMP);In a certain area, i
touch or click events
Android:state_activated is activated.
Android:state_window_focused
If the application is in the foreground, the application is not in the foreground when the notification bar is pulled down or a dialog box pops up.
Note: If you have more than one item, the program will automatically match from top to bottom, and the first match will be applied. (not through Best Bets)
If an item does not have any state description, it can be matched by any one of the states.
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Today you want to draw a curve that changes dynamically based on the color of the parameter, and the parameters are not fixed, so you need to get the color values based on the parameters. Studied for a long time and engaged in a scheme that was implemented through paint.Paint contains a number of ways to set its properties, the main method is as follows:Setantialias: Sets the brush's jagged effect. setcolor
From: http://www.linuxidc.com/Linux/2011-06/36828.htmAndroid screen orientation change and onconfigurationchanged event
Note: The onconfigurationchanged event can be triggered not only when the screen direction is changed, but also when other system settings are changed, such as opening or hiding the keyboard.When the screen direction changes, the onconfigurationchanged event can be triggered. To capture this event for the current activity, we need t
comes with the list item layout file, which is the above code:Connect the optional content to the Arrayadapter adapter = new ArrayadapterWe can replace the layout format we want to show, here's what I'm going to look like, the rounded corners, and then change the color of the default font inside, to white and centered:Activity_tipsprice_spinner.xmlThis is just a drop-down text style, and if you want a fill
Selector background color in Android LinearLayout, androidselector
Using linearLayout as a button, I want to use time to trigger dynamic changes to the background color of linear layout and display different States through different colors. I want to use selector to achieve this, but it has no effect at all.
After reading other solutions, I said that the click at
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