java - Get battery level and state in Android - Stack Overflow

 

android battery status code

May 07,  · *#0*# To enter service menu on the very new Android phones. *## To check battery status. *## / *## To make device in Service mode. 33 rows · Sep 02,  · To enter these codes just pull up the default dialer app and use your chubby . When you're altering the frequency of your background updates to reduce the effect of those updates on battery life, checking the current battery level and charging state is a good place to start.


How to Monitor Your Android Device’s Battery Health


When you're altering the frequency of your background updates to reduce the effect of those updates on battery life, checking the current battery level and charging state is a good place to start. The battery-life impact of performing application updates depends on the battery level and charging state of the device. The impact of performing updates while the device is charging over AC is negligible, so in most cases you can maximize your refresh rate whenever the device is connected to a wall charger.

Conversely, if the device is discharging, reducing your update rate helps prolong the battery life. Similarly, you can check the battery charge level, potentially reducing the frequency of—or even stopping—your updates when the battery charge is nearly exhausted. Start by determining the current charge status.

The BatteryManager broadcasts all battery and charging details in a sticky Intent that includes the charging status. Because it's a sticky intent, you don't need to register a BroadcastReceiver —by simply calling registerReceiver passing in null as the receiver as shown in the next snippet, the current battery status intent is returned. You could pass in an actual BroadcastReceiver object here, but we'll be handling updates in a later section so it's not necessary.

The charging status can change as easily as a device can be plugged in, so it's important to monitor the charging state for changes and alter your refresh rate accordingly. The BatteryManager broadcasts an action whenever the device is connected or disconnected from power. In some cases it's also useful to determine the current battery level. You may choose to reduce the rate of your background updates if the battery charge is below a certain level.

You can find the current battery charge by extracting the current battery level android battery status code scale from the battery status intent as shown here:. Generally speaking, the impact of constantly monitoring the battery level has a greater impact on the battery than your app's normal behavior, so it's good practice to only monitor significant changes in battery level—specifically when the device enters or exits a low battery state. The manifest snippet below is extracted from the intent filter element within a broadcast receiver.

It is generally good practice to disable all your background updates when the battery is critically low, android battery status code. It doesn't matter how fresh your data is if the phone turns itself off before you can make use of it. In many cases, the act of charging a android battery status code is coincident with putting it into a dock. The next lesson shows you how to determine the current dock state and monitor for changes in device docking.

Content and code samples on this page are subject to the licenses described in the Content License. App Basics, android battery status code. Build your first app. App resources. Resource types. App manifest file. App permissions. Device compatibility.

Multiple APK support. Adding wearable features to notifications. Creating wearable apps. Creating custom UIs. Sending and syncing data. Creating data providers. Creating watch faces. Android TV. Build TV Apps, android battery status code. Build TV playback apps.

Help users find content on TV. Recommend TV content. Build TV channels. Android for Cars. Android Things. Developer android battery status code. 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. Core topics. Interact with other apps. Handling app links. App shortcuts. App widgets. Architecture Components. Data Binding Library. Paging Library. How-To Guides. Advanced Concepts. Threading in WorkManager. Intents and intent filters.

User interface. Improving layout performance. Custom view components. Look and feel. Add the app bar. Control the system UI visibility. Supporting swipe-to-refresh. Android battery status code messages overview. Adding search functionality. Creating backward-compatible UIs.

Media app architecture. Building an audio app. Building a video app, android battery status code. Routing between devices. Background tasks. Sending operations to multiple threads. Manage device awake state. Save files android battery status code device 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, android battery status code. Back up key-value pairs.

Remember and authenticate users. User location. Using touch gestures. Handling keyboard input.

 

Monitor the Battery Level and Charging State | Android Developers

 

android battery status code

 

Nov 27,  · This will open a hidden Android test menu. Tap the Battery Information option. Here you will see all details about Android phone battery. You can see the battery charging status, current power source, battery charge level, battery scale and most important health, battery voltage, temperature, type and time since boot. Battery health is a big deal—perhaps now more than ever, with the whole iPhone slowdown debacle. While that in itself doesn’t necessarily have any bearing on Android phones, keeping your device’s battery health in mind is never a bad idea. The thing is, there isn’t an easy or built-in way to check your battery health on Android. May 07,  · *#0*# To enter service menu on the very new Android phones. *## To check battery status. *## / *## To make device in Service mode.