android ui wireframe

View in Android is not thread-safe, so if you update a UI control in the main thread directly in a new one, the following error is reported:Android.view.viewrootimpl$calledfromwrongthreadexception:only the original thread that created a view hierarchy can Touc H its Views.In order to solve the problem of updating UI controls in another thread, we can use several

button is one of the most frequently used UI components of Android. Very small but most often used in development. Generally used in conjunction with the listener. Triggering some specific events.Button inherits the TextView. Its function is to provide a button, which can be clicked by the user. When the user operates on the button, the corresponding event is triggered, such as a click. Touch. In general, f

Objective? We know that in Android development you can't update the UI in a non-UI thread, but sometimes we need to do some time-consuming operations like accessing the network, querying the database, and so on, in order not to block the UI thread, we often open a new thread (worker thread) to perform these time-consum

Obtain data from the Internet and update the UI using sqlite in AndroidObtain data from the Internet and update the UI using sqlite in Android Here, I mainly want to create1. First retrieve data from the Internet2. Store the obtained data locally.3. The marker within the screen range is displayed on the map.4. When the MAP status changes, query the local database

Go from the first line of code-androidAndroid is not allowed to perform UI operations on child threads. The asynchronous message processing mechanism provided by Android is required to perform time-consuming operations on the child threads and then update the corresponding UI controls based on the results of the task execution.The code is as follows:1 Public cla

In Android, it is not safe to update UI controls in a non-main thread, and the app will be crash directly at run time, so when we need to update UI controls in a non-main thread, we need to use handler and message to implementDemo, use to a button and a TextView, click the button to change the content of TextView, button click Time to create a new process, the

The moji weather was upgraded over the weekend. It looks like the guiding interface is doing well. imitating it may be different from the original author's code implementation, but the implementation effect is similar. First, I would like to share my previous article, the basic knowledge of android Animation, Android UI development Article 12th-Animation effect A

1. Using RecyclerviewThe list in the Android app is a very important control, for a lot of occasions, such as news list, app list, message list and so on, but from Android birth to now there is no very good list control, early ListView usage is very complex, especially the custom column Table, is simply hell, because it also involves a lot of efficiency optimization problems, novice difficult to write effic

Android View measure (2) related to the custom UI control measure, androidmeasure This article simulates three roles: Android architect-Xiao Fu, Android control development engineer-Xiao, Android Development Engineer-Xiao Bai. The following describes the measure process fro

Original URL: http://www.cnblogs.com/xiaoluo501395377/p/3421727.htmlLower right corner Focus Button recommended buttons to support Oh if you have any questions about the content of the article, you can contact me by comment or email: [Email protected] /[email protected] If you need to reprint, please specify the source, thank you!!This essay will continue to learn about the dialog in the Android UI famil

After clicking endButton, the execution sequence is shown as follows: Figure 12 CallCardFragment display of the current Call Sequence Updated CallCardFragment is more independent and code clearer than before 4.4 (only modified by MTK, ah ......), The update sequence diagram of the entire interface is as follows: Figure 13 CallCardFragment update sequence diagram Summary The UI of Android 4.4 Phone has not

This section describes the layout manager derived from ViewGroup. The following shows the class diagram of the android layout manager: The graphic user interface of android applications has good platform independence, that is, the layout manager is used to manage the component distribution and size, rather than directly setting the component location and size. 1. LinearLayout class (linear layout ): The co

In Android Application Development, style and design may not be the most critical elements, but they do play an important role in determining whether the Android application is successful or not. The following are the UI design skills for 10 Android apps and additional skills that can provide visual appeal for your

In Android Application Development, style and design may not be the most critical elements, but they do play an important role in determining whether the android application is successful or not. The following are the UI design skills for 10 Android apps and additional skills that can provide visual appeal for your

Styling and design may not be the most critical element in Android application development, but they do play an important role in determining the success of Android applications. Here are 10 UI design tips for Android apps, plus an extra tip to provide the visual appeal of your And