OnClick (View v) {transaction = Manager.begintransaction ();/* * qiulinhe:2015 July 21 10:54:51 * Solve the problem of switch lag */The principle is:Turned to the Android official doc, and some components of the source code, found that the replace () This method is only used in the last fragment no longer need to use the simple method.The correct way to
software.Hardware acceleration is rendered on FBO (Framebuffer Object) when it is turned on, and the view tree only needs to be drawn once when animating.The difference between the two:1, one is rendered to bitmap, one is rendered to FB.2, hardware may have some operations not supported.The two are the same:All open a buffer and draw the view to this buffer.3:layer_type_noneThis is relatively simple, do not create a separate layer for this view treeThe Ps:glsurfaceview and webview default Layer
The most important root cause of performance problems that most users perceive as lag is because of rendering performance. From the designer's point of view, they want the app to have more animation, pictures and other fashion elements to achieve a smooth user experience. But the Android system is likely to be unable to complete those complex interface rendering operations in time. The
1, perceptual LagUser perception of the lag, mainly from the interface refresh. The performance of the interface is mainly dependent on the UI rendering performance of the device. If our UI design is too complex, or the implementation is not good enough, the device does not give force, the interface will be like stuck, the feeling of the user lag.1.1 16ms PrincipleBefore we analyze the reasons for the
The current development of the program in the switch view interface lag is serious, affecting the user experience, the current project a total of four view, each view is just a button, so you can load at the same time, do not let other view destroy.Simply overload the Destroyitem class in adapter to@Override public void Destroyitem (ViewGroup container, int position, object object) {//Overloads this method
is[Java]View PlainCopy
Linearlayoutmanager = New Linearlayoutmanager (context) {
@Override
Public Boolean canscrollvertically () {
return false;
}
};
The other is to rewrite the LayoutManager, using grid mode to illustrate:[Java]View PlainCopy
Public class Scrollgridlayoutmanager extends Gridlayoutmanager {
Private Boolean isscrollenabled = true;
Public Scrollgridlayoutmanager (context context, AttributeSet attrs, int defstyleattr, int defstyleres)
I have just contact with Android development, recently encountered a ListView refresh item has been stuck, the progress bar has been only refreshed two times the end, Gray often do not understand, all kinds of Baidu, all kinds of information, what threads have tried all over, but and eggs. All the way up to see a piece of information that mentions the Wrap_content attribute, which is exactly what this is based on the size of the content itself, only t
Android slide switch component and android slide Switch
Because Android does not provide components such as slide switches, we need to implement a custom view component to achieve the slide switch effect.
Here is an example code,
Android advanced components ----- image switch, Android ----- Switch
Android image switch
ImageSwitch provides a ViewFactory interface. The View component generated by ViewFactory must be ImageView. When switching images, you onl
[Android] Core Method of interface switch, android Switch
Based on the split Interface
View ==> ViewGroup ==> RelativeLayout. The subject uses RelativeLayout as the placeholder.
Difference between View and ViewGroup: ViewGroup has the unique addView () and removeView () methods. After RelativeLayout is added to the
Android-Implementation of the simplest Custom button in history, android Switch
Reprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/48102871
Most of the time, we have such an effect in many Android and IOS apps. There is a button, and we click it to slide it, "On" will be displayed, a
Android Activity interface switch to add animation effects, Android activity
OverridePendingTransition () is available after Android 2.0. There are two parameters, one being the exit entry of the previous activity,Java code
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanc
Android custom SwitchButton switch control, android Custom button
SwitchButton controls have become very popular. There are a variety of styles. The SwitchButton control is generally used for app software settings to control cache, sound, prompt, download, and so on. Is a good UI experience and user habits. Next we will introduce a SwitchButton
Android custom Notification layout Notification, click the Notification navigation to switch back to the original Activity, android custom Layout
A Simple Application Scenario: if the user opens the Activity and presses the Home key, the Activity enters-> onPause ()-> onStop () invisible. The code sends a Notification to the Notification bar at this time. After y
Android custom control series 2: Custom switch button (1), android Control
This time, we will implement a complete and pure custom control, instead of using the system control like the previous Composite Control. The plan is divided into three parts:Basic Part of the custom control,Processing of touch events of Custom ControlsAndCustom properties of a custom cont
We all know that a sliding switch is provided for Android 4.0 and later versions. Many people choose to use checkbox and put two images below. However, this operation only applies, and the effect is not very good, so I have customized the sliding switch wiperswitch control. paste it next. This is a really bad picture. You can change it to three pictures by yourse
Android custom View ------- IOS sliding switch, android custom view
Source code and test examples have been put on github https://github.com/leaking/slideswitch. welcome star fork issue
During project development, there are often some user-specific settings. At this time, a switch control is often required. On the week
Android high imitation 6.0 main interface with you to switch the icon color, android high imitation microReprinted please indicate the source: bytes
Learning Android will inevitably imitate the interfaces of various apps. Since the advent of Android 6.0, I feel that the colo
Android custom controls Series 3: Custom switch buttons (3) --- custom properties, android controls
Respect Original, reprinted please indicate the source: http://blog.csdn.net/cyp331203/article/details/40855377
Before receiving:Android custom control series 2: Custom switch button (1)AndAndroid custom control Series
Typical Android Interface Design (3) -- access Netease news to implement dual-Navigation tab switch, and android Netease news
I. Problem Description
Dual-Navigation tab switch (bottom block + header navigation in the area). FragmentTabHost + Fragment is used in the bottom area of the solution. ViewPager
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