Android
- Getting started with Android
- Awesome Book
- Awesome Community
- Awesome Course
- Awesome Tutorial
- Awesome YouTube
- 9-Patch Images
- Accessing SQLite databases using the ContentValues class
- Accounts and AccountManager
- ACRA
- Activity
- Activity Recognition
- ADB (Android Debug Bridge)
- adb shell
- Adding a FuseView to an Android Project
- AdMob
- AIDL
- AlarmManager
- Android Architecture Components
- Android Authenticator
- Android game development
- Android Java Native Interface (JNI)
- Android Kernel Optimization
- Android NDK
- Android Paypal Gateway Integration
- Android Places API
- Android programming with Kotlin
- Android Sound and Media
- Android Studio
- Android Things
- Android Versions
- Android Vk Sdk
- Android-x86 in VirtualBox
- Animated AlertDialog Box
- Animators
- Annotation Processor
- AsyncTask
- AudioManager
- AudioTrack
- AutoCompleteTextView
- Autosizing TextViews
- Barcode and QR code reading
- Bitmap Cache
- Bluetooth and Bluetooth LE API
- Bluetooth Low Energy
- Bottom Sheets
- BottomNavigationView
- BroadcastReceiver
- Building Backwards Compatible Apps
- ButterKnife
- Button
- Callback URL
- Camera 2 API
- Camera and Gallery
- Canvas drawing using SurfaceView
- Capturing Screenshots
- CardView
- Check Data Connection
- Check Internet Connectivity
- CleverTap
- Colors
- ConstraintLayout
- ConstraintSet
- ContentProvider
- Context
- Convert vietnamese string to english string Android
- CoordinatorLayout and Behaviors
- Count Down Timer
- Crash Reporting Tools
- Create Android Custom ROMs
- Create Singleton Class for Toast Message
- Creating Custom Views
- Creating Overlay (always-on-top) Windows
- Creating Splash screen
- Creating your own libraries for Android applications
- Custom Fonts
- Dagger 2
- Data Binding Library
- Data Encryption/Decryption
- Data Synchronization with Sync Adapter
- Date and Time Pickers
- DayNight Theme (AppCompat v23.2 / API 14+)
- Define step value (increment) for custom RangeSeekBar
- Design Patterns
- Detect Shake Event in Android
- Device Display Metrics
- Dialog
- Displaying Google Ads
- Doze Mode
- Drawables
- EditText
- Email Validation
- Emulator
- Enhancing Alert Dialogs
- Enhancing Android Performance Using Icon Fonts
- Exceptions
- ExoPlayer
- Facebook SDK for Android
- Fast way to setup Retrolambda on an android project.
- Fastjson
- fastlane
- FileIO with Android
- FileProvider
- Fingerprint API in android
- Firebase
- Firebase App Indexing
- Firebase Cloud Messaging
- Firebase Crash Reporting
- Firebase Realtime DataBase
- FloatingActionButton
- Formatting phone numbers with pattern.
- Formatting Strings
- Fragments
- Fresco
- Genymotion for android
- Gesture Detection
- Getting Calculated View Dimensions
- Getting started with OpenGL ES 2.0+
- Getting system font names and using the fonts
- Glide
- Google Awareness APIs
- Google Drive API
- Google Maps API v2 for Android
- Google Play Store
- Google signin integration on android
- Gradle for Android
- GreenDAO
- GreenRobot EventBus
- Gson
- Handler
- Handling Deep Links
- Handling touch and motion events
- Hardware Button Events/Intents (PTT, LWP, etc.)
- How to store passwords securely
- How to use SparseArray
- HttpURLConnection
- Image Compression
- ImageView
- Implicit Intents
- In-app Billing
- Installing apps with ADB
- Instant Run in Android Studio
- Integrate Google Sign In
- Integrate OpenCV into Android Studio
- Intent
- IntentService
- Inter-app UI testing with UIAutomator
- Interfaces
- Internationalization and localization (I18N and L10N)
- Jackson
- Java on Android
- JCodec
- Jenkins CI setup for Android Projects
- Job Scheduling
- JSON in Android with org.json
- Keyboard
- Layouts
- Leakcanary
- Library Dagger 2: Dependency Injection in Applications
- Lint Warnings
- ListView
- Loader
- Loading Bitmaps Effectively
- Localization with resources in Android
- Localized Date/Time in Android
- Location
- Logging and using Logcat
- Android Studio usage
- Clear logs
- Filtering the logcat output
- Generating Logging code
- Log with link to source directly from Logcat
- Logging
- Using the Logcat
- Looper
- LruCache
- Material Design
- MediaPlayer
- MediaSession
- MediaStore
- Memory Leaks
- Menu
- Moshi
- Multidex and the Dex Method Limit
- MVP Architecture
- MVVM (Architecture)
- NavigationView
- Notification Channel Android O
- Notifications
- OkHttp
- Okio
- Optimized VideoView
- Orientation Changes
- ORMLite in android
- Otto Event Bus
- PackageManager
- Pagination in RecyclerView
- Paint
- Parcelable
- Performance Optimization
- Picasso
- Ping ICMP
- Port Mapping using Cling library in Android
- PorterDuff Mode
- ProgressBar
- ProGuard - Obfuscating and Shrinking your code
- Project SDK versions
- Publish .aar file to Apache Archiva with Gradle
- Publish a library to Maven Repositories
- Publish to Play Store
- Realm
- RecyclerView
- RecyclerView and LayoutManagers
- RecyclerView Decorations
- RecyclerView onClickListeners
- RenderScript
- Resources
- Retrofit2
- Retrofit2 with RxJava
- RoboGuice
- Robolectric
- Runtime Permissions in API-23 +
- SearchView
- Secure SharedPreferences
- Secure SharedPreferences
- Security
- SensorManager
- Service
- Shared Element Transitions
- SharedPreferences
- ShortcutManager
- Sign your Android App for Release
- Smartcard
- Snackbar
- SpannableString
- Speech to Text Conversion
- Spinner
- Split Screen / Multi-Screen Activities
- SQLite
- Storing Files in Internal & External Storage
- Strict Mode Policy : A tool to catch the bug in the Compile Time.
- Supporting Screens With Different Resolutions, Sizes
- Swipe to Refresh
- SyncAdapter with periodically do sync of data
- TabLayout
- TensorFlow
- Testing UI with Espresso
- Text to Speech(TTS)
- TextInputLayout
- TextView
- The Manifest File
- Theme, Style, Attribute
- Thread
- Time Utils
- Toast
- Tools Attributes
- Touch Events
- TransitionDrawable
- Twitter APIs
- Typedef Annotations: @IntDef, @StringDef
- UI Lifecycle
- Unit testing in Android with JUnit
- Universal Image Loader
- Unzip File in Android
- Vector Drawables
- VectorDrawable and AnimatedVectorDrawable
- Vibration
- VideoView
- ViewFlipper
- ViewPager
- Volley
- WebView
- What is ProGuard? What is use in Android?
- Widgets
- Wi-Fi Connections
- Writing UI tests - Android
- XMPP register login and chat simple example
- Xposed
- Youtube-API
- Zip file in android
Android Logging and using Logcat Using the Logcat
Example
Logcat is a command-line tool that dumps a log of system messages, including stack traces when the device throws an error and messages that you have written from your app with the Log class.
The Logcat output can be displayed within Android Studio's Android Monitor or with adb command line.
In Android Studio
Show by clicking the "Android Monitor" icon:
Or by pressing Alt+6 on Windows/Linux or CMD+6 on Mac.
via command line:
Simple usage:
$ adb logcat
With timestamps:
$ adb logcat -v time
Filter on specific text:
$ adb logcat -v time | grep 'searchtext'
There are many options and filters available to command line logcat, documented here.
A simple but useful example is the following filter expression that displays all log messages with priority level "error", on all tags:
$ adb logcat *:E
