Get download app from es file explorer

The emulator lets you simulate "my location" information: the location where the emulated device is currently located. For example, if you click My Location in Google Maps and then send a location, the map shows it. Controls for the device's location information are organized under two tabs: Single points and Routes.

In the Single points tab, you can use the Google Maps webview to search for points of interest, just as you would when using Google Maps on a phone or in a browser. When you search for or click on a location in the map, you can save the location by selecting Save point near the bottom of the map. All of your saved locations are listed on the right side of the Extended controls window. To set the emulators location to the location you have selected on the map, click the Set location button near the bottom right of the Extended controls window.

Similar to the Single points tab, the Routes tab provides a Google Maps webview that you can use to create a route between two or more locations. To create and save a route, do the following:. To simulate the emulator following the route you saved, select the route from the list of Saved routes and click Play route near the bottom right of the Extended controls window. To stop the simulation, click Stop route.

To continuously simulate the emulator following the specified route, enable the switch next to Repeat playback. To change how quickly the emulator follows the specified route, select an option from the Playback speed dropdown.

The speed defaults to the Delay value Speed 1X. You can increase the speed by double Speed 2X , triple Speed 3X , and so on. The emulator allows you to deploy your app to multiple displays, which support customizable dimensions and can help you test apps that support multi- window and multi- display. While a virtual device is running, you can add up to two additional displays as follows:.

The emulator lets you simulate various network conditions. You can approximate the network speed for different network protocols, or you can specify Full , which transfers data as quickly as your computer allows. Specifying a network protocol is always slower than Full. You can also specify the voice and data network status, such as roaming. The defaults are set in the AVD. You can simulate the battery properties of a device to see how your app performs under different conditions. To select a Charge level , use the slider control.

If the AVD has the directional pad enabled in the hardware profile, you can use the directional pad controls with the emulator. However, not all devices can support the directional pad; for example, an Android watch. The buttons simulate the following actions:. This control can simulate 10 different fingerprint scans. You can use it to test fingerprint integration in your app.

This feature is disabled for Android 5. This control lets you test your app against changes in device position, orientation, or both. For example, you can simulate gestures such as tilt and rotation. The accelerometer doesn't track the absolute position of the device: it just detects when a change is occurring. The control simulates the way accelerometer and magnetometer sensors would respond when you move or rotate a real device.

You must enable the accelerometer sensor in your AVD to use this control. These values include gravity. For example, if the device is suspended in outer space, it would experience zero acceleration all of x, y, and z will be 0. When the device is on Earth and laying screen-up on top of a table, the acceleration is 0, 0, and 9.

To rotate the device around the x, y, and z axes, select Rotate and do one of the following:. See Computing the device's orientation for more information about how yaw, pitch, and roll are calculated. To move the device horizontally x or vertically y , select Move and do one of the following:. As you adjust the device, the Resulting values fields change accordingly.

These are the values that an app can access. For more information about these sensors, see Sensors overview , Motion sensors , and Position sensors. The emulator can simulate various position and environment sensors. It lets you adjust the following sensors so you can test them with your app:.

For more information about these sensors, see Sensors overview , Position sensors , and Environment sensors. For more information, see Using the emulator with a proxy. This is equivalant to the -gpu command line option.

Autodetect based on host : Let the emulator choose hardware or software graphics acceleration based on your computer setup. SwiftShader : Use SwiftShader to render graphics in software. This option is typically the fastest. However, some drivers have issues with rendering OpenGL graphics, so it might not be a reliable option. For the shortcuts to work, the Send keyboard shortcuts option in the General settings pane must be set to Emulator controls default. To file a bug against the emulator, click Send feedback.

For more information, see how to report emulator bugs. Compare the latest available emulator version with your version to determine if you have the latest software installed. You can disable Wi-Fi in the emulator by running the emulator with the command-line parameter -feature -Wifi. Content and code samples on this page are subject to the licenses described in the Content License.

Android Studio. Download What's new User guide Preview. Meet Android Studio. Manage your project. Write your app. Build and run your app. Run apps on the emulator. Run apps on a hardware device. Configure your build. Optimize your build speed. Debug your app. Test your app. Profile your app. Android Studio profilers. Profile CPU activity. Benchmark your app. Measure performance. Publish your app. Command line tools.

Android Developers. Watch the following video for an overview of some emulator features. Requirements and recommendations The Android Emulator has additional requirements beyond the basic system requirements for Android Studio , which are described below: SDK Tools Android virtual devices Each instance of the Android Emulator uses an Android virtual device AVD to specify the Android version and hardware characteristics of the simulated device.

Run an app on the Android Emulator You can run an app from an Android Studio project, or you can run an app that's been installed on the Android Emulator as you would run any app on a device. Double-click an AVD, or click Run. The Android Emulator loads.

Run the Android Emulator directly in Android Studio Run the Android Emulator directly in Android Studio to conserve screen real estate, to navigate quickly between the emulator and the editor window using hotkeys, and to organize your IDE and emulator workflow in a single application window. Start your virtual device using the AVD Manager or by targeting it when running your app. Limitations Currently, you can't use the emulator's extended controls when it's running in a tool window.

Snapshots A snapshot is a stored image of an AVD Android Virtual Device that preserves the entire state of the device at the time that it was saved — including OS settings, application state, and user data.

Save Quick Boot snapshots When you close an AVD, you can specify whether the emulator automatically saves a snapshot when you close. To control this behavior, proceed as follows: Open the emulator's Extended controls window. In the Snapshots category of controls, navigate to the Settings tab. Use the Auto-save current state to Quickboot drop-down menu to select one of the following options: Yes : Always save an AVD snapshot when you close the emulator.

No : Don't save an AVD snapshot when you close the emulator. Create tabs and multi-task in this file explorer with the help of its extremely user-friendly interface, including a bottom-bar panel.

Use the dual-panel feature of this application to switch between two different tasks seamlessly. The application, loaded with features such as cloud sync, network sharing, OTG file share, and file organization. The app is available for free, but to make the most use of this application, you will need to purchase the premium version. Features such as the ability to hide and encrypt files as well as the recycle bin, file bookmarking, and storage analyzer are some of the features available with the premium version of File Commander.

Your email address will not be published. A Bcom Honours student with a flair for writing and a keen interest in the tech world. No data is lost when the data model changes.

The automatic creation of CRUD action methods and views is known as scaffolding. The Visual Studio scaffolding engine creates a StudentsController. NET Core dependency injection takes care of passing an instance of SchoolContext into the controller. You configured that in the Startup class. The controller contains an Index action method, which displays all students in the database. The method gets a list of students from the Students entity set by reading the Students property of the database context instance:.

Click the Students tab to see the test data that the DbInitializer. Initialize method inserted. Depending on how narrow your browser window is, you'll see the Students tab link at the top of the page or you'll have to click the navigation icon in the upper right corner to see the link. When the app is started, the DbInitializer. Initialize method calls EnsureCreated.

EF saw that there was no database:. Right-click the Student table and click View Data to see the data in the table. Because EnsureCreated is called in the initializer method that runs on app start, you could:. For example, if an EmailAddress property is added to the Student class, a new EmailAddress column in the re-created table. The view won't display the new EmailAddress property. The amount of code written in order for the EF to create a complete database is minimal because of the use of the conventions EF uses:.

Conventional behavior can be overridden. For example, table names can be explicitly specified, as shown earlier in this tutorial. Column names and any property can be set as a PK or FK.

A web server has a limited number of threads available, and in high load situations all of the available threads might be in use. When that happens, the server can't process new requests until the threads are freed up. As a result, asynchronous code enables server resources to be used more efficiently, and the server is enabled to handle more traffic without delays. Asynchronous code does introduce a small amount of overhead at run time, but for low traffic situations the performance hit is negligible, while for high traffic situations, the potential performance improvement is substantial.

For more information about asynchronous programming in. NET, see Async Overview. See Performance considerations for information on limiting the number of entities returned from a query.

Logging configuration is commonly provided by the Logging section of appsettings. To log SQL statements, add "Microsoft. Command": "Information" to the appsettings. For more information, see Logging in. Advance to the next tutorial to learn how to perform basic CRUD create, read, update, delete operations.

Implement basic CRUD functionality. NET Core 2. This tutorial has not been updated for ASP. NET Core 3. It has been updated for ASP. NET Core 5. The sample application is a web site for a fictional Contoso University. This is the first in a series of tutorials that explain how to build the Contoso University sample application from scratch. Here are a few of the screens you'll create. Change each occurrence of "ContosoUniversity" to "Contoso University". There are three occurrences. You see the home page with tabs for the pages you'll create in these tutorials.

To add EF Core support to a project, install the database provider that you want to target. This package is included in the Microsoft. App metapackage , so you don't need to reference the package. Relational provide runtime support for EF.

You'll add a tooling package later, in the Migrations tutorial. For information about other database providers that are available for Entity Framework Core, see Database providers. Next you'll create entity classes for the Contoso University application. You'll start with the following three entities. There's a one-to-many relationship between Student and Enrollment entities, and there's a one-to-many relationship between Course and Enrollment entities.

In other words, a student can be enrolled in any number of courses, and a course can have any number of students enrolled in it. In the Models folder, create a class file named Student. The ID property will become the primary key column of the database table that corresponds to this class.

In this case, the Enrollments property of a Student entity will hold all of the Enrollment entities that are related to that Student entity. In other words, if a Student row in the database has two related Enrollment rows rows that contain that student's primary key value in their StudentID foreign key column , that Student entity's Enrollments navigation property will contain those two Enrollment entities. In the Models folder, create Enrollment. Ordinarily you would choose one pattern and use it throughout your data model.

Here, the variation illustrates that you can use either pattern. In a later tutorial , you'll see how using ID without classname makes it easier to implement inheritance in the data model. The question mark after the Grade type declaration indicates that the Grade property is nullable. A grade that's null is different from a zero grade -- null means a grade isn't known or hasn't been assigned yet.

The StudentID property is a foreign key, and the corresponding navigation property is Student. An Enrollment entity is associated with one Student entity, so the property can only hold a single Student entity unlike the Student.

Enrollments navigation property you saw earlier, which can hold multiple Enrollment entities. The CourseID property is a foreign key, and the corresponding navigation property is Course.