android volume control app

attribute does not belong to the namespace, as follows:LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:custom="http://schemas.android.com/apk/res/com.example.customviews">com.example.customviews.charting.PieChart custom:showText="true" custom:labelPosition="left" />LinearLayout>Note : To avoid entering long strings of namespace names, the example above uses the xmlns directive, which can be assigned cu

guarantee that the Cusor will eventually be released, if the cursor data volume is large, especially if there is blob information inside, should ensure that the cursor occupied memory is released in a timely manner, Instead of waiting for the GC to handle it. 5) Some details in the code Use 9path as much as possible Adapter to use Convertview All kinds of listening, broadcasting and so on, register the same time remember to c

= BitmapFactory.decodeResource(getResources(), R.drawable.droids); photoPrinter.printBitmap("droids.jpg - test print", bitmap);}After the above method is called, the Android print interface will appear, allowing the user to select a printer and its printer options, the user can choose to print pictures and cancel the operation, when the printing begins, the system notification bar will display a print notification reminder.Two printed H

advantage of, you will not be able to use other application resources efficiently by loading and resizing.　　8 : Using Hierarchy Viewer Tools　　Hierarchy Viewer tools can help you debug your application layout. It also provides valuable analysis information to understand how much time it takes to measure, render, and draw each view control within a layout. It is easy to solve the problem only if you find the root of the problem accurately. 　　9 : Using

they can be loaded as efficiently as possible. This is especially important when we talk about graphical resources. If you add a large image resource that you can take advantage of, you will not be able to use other application resources efficiently by loading and resizing.8: Using the Hierarchy Viewer toolThe Hierarchy Viewer tool can help you debug your application layout. It also provides valuable analysis information to understand how much time it takes to measure, render, and draw each vie

I asked a similar question, but all the respondents were android. Is there any iOS client? Perform an activity and embed an H5 page in the app. How does one allow users to click the button on the H5 page to jump to another page of the APP? For example, you can click the recharge button on the H5 page to jump to the recharge page (... I asked a similar question, b

Code portal written in frontIn a previous article, we simply know the advantages of the new language Kotlin, but also contact some common grammar and its simple use, I believe you will have a strong interest in it, for the moment to understand that it is interested in it, ha haha. So, how do we apply this new language to Android? Today's article takes you through the development of Android apps using Kotlin

Android system Xiaomi/Samsung/Sony app startup icon unread message count (BadgeNumber) Dynamic reminder, androidbadgenumber On Android phones, for example, QQ, when there is unread message, we can see that there is a red circle in the upper right corner of the app startup icon, and the number of unread messages is dyn

different positioning for the application, so the application launch requirements are not the same. For example, some do ROM company, its built-in application start time must be very fast, so that the user's first feeling is fast, smooth; The internet company app is not very concerned about the startup speed, most of the Internet company's applications have a launch page, used to display ads or feature introduction, etc. The main interface is then en

Last year, the number of Android applications has exceeded iOS to become the world's largest ecosystem. However, among the millions of applications, some of them have a large download volume and make a lot of money; in addition, some applications have no one to worry about. Having many years of experience in program development, recently the development of the Android