Android webview download file crash

There's no need to initialize the Android interface from JavaScript. The WebView automatically makes it available to your web page. So, when a user clicks the button, the showAndroidToast function uses the Android interface to call the WebAppInterface. Note: The object that is bound to your JavaScript runs in another thread and not in the thread in which it was constructed.

This can be a very useful feature or a dangerous security issue. You should also not allow the user to navigate to other web pages that are not your own, within your WebView. Instead, allow the user's default browser application to open foreign links—by default, the user's web browser opens all URL links, so be careful only if you handle page navigation as described in the following section. When the user clicks a link from a web page in your WebView , the default behavior is for Android to launch an app that handles URLs.

Usually, the default web browser opens and loads the destination URL. However, you can override this behavior for your WebView , so links open within your WebView. You can then allow the user to navigate backward and forward through their web page history that's maintained by your WebView.

If you want more control over where a clicked link loads, create your own WebViewClient that overrides the shouldOverrideUrlLoading method. Now when the user clicks a link, the system calls shouldOverrideUrlLoading , which checks whether the URL host matches a specific domain as defined above. If the URL host does not match, then an Intent is created to launch the default Activity for handling URLs which resolves to the user's default web browser.

When your WebView overrides URL loading, it automatically accumulates a history of visited web pages. You can navigate backward and forward through the history with goBack and goForward.

For example, the following shows how your Activity can use the device Back button to navigate backward:. The canGoBack method returns true if there is actually web page history for the user to visit.

Likewise, you can use canGoForward to check whether there is a forward history. If you don't perform this check, then once the user reaches the end of the history, goBack or goForward does nothing. These changes cause a WebView object's activity to be destroyed and a new activity to be created, which also creates a new WebView object that loads the destroyed object's URL. To learn more about handling configuration changes during runtime, read Handling configuration changes. By default, requests to open new windows are ignored.

This is true whether they are opened by JavaScript or by the target attribute in a link. You can customize your WebChromeClient to provide your own behavior for opening multiple windows. Caution: To keep your app more secure, it's best to prevent popups and new windows from opening. The safest way to implement this behavior is to pass "true" into setSupportMultipleWindows but not override the onCreateWindow method, which setSupportMultipleWindows depends on.

Content and code samples on this page are subject to the licenses described in the Content License. App Basics.

Build your first app. App resources. Resource types. App manifest file. Device compatibility. Multiple APK support. Tablets, large screens, and foldables. Build responsive UIs. Build for foldables. Getting started. Handling data. User input. Watch Face Studio. Health services. Creating watch faces. Android TV. Build TV Apps. Build TV playback apps. Help users find content on TV. Recommend TV content. Watch Next. Build TV games. Build TV input services.

TV Accessibility. Android for Cars. Build media apps for cars. Build navigation, parking, and charging apps for cars. Android Things. Supported hardware. Advanced setup. Build apps. Create a Things app. Communicate with wireless devices.

Configure devices. Interact with peripherals. Build user-space drivers. Manage devices. Create a build. Push an update. Chrome OS devices. App architecture. Architecture Components. UI layer libraries. View binding. Data binding library. Lifecycle-aware components.

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You can also support this website through a donation. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Table Of Contents. Introduction Metasploit Android modules overview Android Meterpreter commands Metasploit Android modules detailed Metasploit Android exploits Metasploit Android privilege escalation exploits Metasploit Android payloads Metasploit Android post exploitation modules Metasploit Android auxiliary modules See also.

Empire Module Library Read More. Metasploit Android Modules Read More. Why your exploit completed, but no session was created? Try these fixes.. Read More. Terminal Escape Injection Read More. Capture Passwords using Wireshark Read More. Default Password Scanner default-http-login-hunter. Leave a Comment Cancel Reply Your email address will not be published. This module exploits a command injection vulnerability in Metasploit Framework's msfvenom payload generator when using a crafted APK file as an Android payload template.

Affects Metasploit Framework Adobe Reader versions less than This module exploits an integer overflow vulnerability in the Stagefright Library libstagefright. The vulnerability occurs when parsing specially crafted MP4 files.

While a wide variety of Platforms : android Refs : source , ref1. Writes and spawns a native payload on an android device that is listening for adb debug messages. Platforms : linux Refs : source.

This module exploits CVE in Android to install a payload into another application. The payload APK will have the same signature and can be installed as an update, preserving the existing This module is a stub that provides all of the features of the Metasploit payload system to exploits that have been launched outside of the framework.

This module suggests local meterpreter exploits that can be used. The exploits are suggested based on the architecture and platform that the user has a shell opened as well as the available exploits Platforms : all Refs : source , docs. Allwinner 3. This module attempts to exploit a debug backdoor privilege escalation in Allwinner SoC based devices. The missing checks on these functions allow an unprivileged user to read and write Any Android device with a kernel built before June is likely to be The bug is a local privilege escalation vulnerability that allows for a full compromise of a vulnerable This module uses the su binary present on rooted devices to run a payload as root.

A rooted Android device will contain a su binary often linked with an application that allows the user to run Platforms : android, linux Refs : source. Interact with other apps. Package visibility. Intents and intent filters. User interface. Add motion to your layout with MotionLayout. MotionLayout XML reference. Improving layout performance. Custom view components. Look and feel.

Splash screens. Add the app bar. Control the system UI visibility. Supporting swipe-to-refresh. Pop-up messages overview. Adding search functionality. Creating backward-compatible UIs. Home channels for mobile apps. App widgets. Media app architecture. Building an audio app. Building a video app. The Google Assistant. Routing between devices. Background tasks. Manage device awake state.

Save to shared storage. Save data in a local database. Sharing simple data. Sharing files. Sharing files with NFC. Printing files. Content providers. Autofill framework.

Contacts provider. Data backup. Remember and authenticate users. User location. Using touch gestures. Handling keyboard input.

Supporting game controllers. Input method editors. Performing network operations. Transmit network data using Volley. Perform network operations using Cronet.

Transferring data without draining the battery. Reduce network battery drain. Transfer data using Sync Adapters. Bluetooth Low Energy. Wi-Fi infrastructure. Discover and connect. Runtime API reference. Web-based content. Android App Bundles. Google Play. Play Asset Delivery. Play Feature Delivery. In-app reviews. In-app updates. Google Play Instant. Get started with instant apps.

Get started with instant games. Integrate with Firebase. Play Install Referrer. Play Install Referrer Library. Application Licensing. Android GPU Inspector. System profiling.