Android App Development

  1. User Interface Development
    1. Views and View System
      1. View Hierarchy
        1. View and ViewGroup
          1. Layout Parameters
            1. View Lifecycle
            2. Common Views
              1. Text Views
                1. TextView
                  1. EditText
                    1. AutoCompleteTextView
                    2. Button Views
                      1. Button
                        1. ImageButton
                          1. FloatingActionButton
                          2. Image Views
                            1. ImageView
                              1. ImageButton
                              2. Input Views
                                1. CheckBox
                                  1. RadioButton
                                    1. Switch
                                      1. SeekBar
                                      2. Progress Views
                                        1. ProgressBar
                                          1. RatingBar
                                        2. View Properties
                                          1. Layout Properties
                                            1. Visual Properties
                                              1. Behavioral Properties
                                                1. Accessibility Properties
                                              2. Layout Management
                                                1. Layout Types
                                                  1. LinearLayout
                                                    1. Orientation
                                                      1. Weight Distribution
                                                        1. Gravity and Layout Gravity
                                                        2. RelativeLayout
                                                          1. Relative Positioning
                                                            1. Alignment Rules
                                                              1. Performance Considerations
                                                              2. ConstraintLayout
                                                                1. Constraint Types
                                                                  1. Guidelines and Barriers
                                                                    1. Chains and Groups
                                                                      1. Performance Benefits
                                                                      2. FrameLayout
                                                                        1. Overlay Layouts
                                                                          1. Single Child Layouts
                                                                          2. GridLayout
                                                                            1. Grid Structure
                                                                              1. Spanning Cells
                                                                              2. TableLayout
                                                                                1. Table Structure
                                                                                  1. Row and Column Management
                                                                                2. Layout Optimization
                                                                                  1. Layout Performance
                                                                                    1. Hierarchy Optimization
                                                                                      1. ViewStub Usage
                                                                                        1. Include and Merge Tags
                                                                                      2. Resources and Theming
                                                                                        1. Resource Types
                                                                                          1. String Resources
                                                                                            1. Color Resources
                                                                                              1. Dimension Resources
                                                                                                1. Drawable Resources
                                                                                                  1. Layout Resources
                                                                                                    1. Animation Resources
                                                                                                    2. Resource Qualifiers
                                                                                                      1. Screen Density
                                                                                                        1. Screen Size
                                                                                                          1. Orientation
                                                                                                            1. Language and Region
                                                                                                              1. API Level
                                                                                                              2. Styles and Themes
                                                                                                                1. Style Definition
                                                                                                                  1. Style Inheritance
                                                                                                                    1. Theme Application
                                                                                                                      1. Material Design Themes
                                                                                                                        1. Dark Theme Support
                                                                                                                        2. Material Design
                                                                                                                          1. Design Principles
                                                                                                                            1. Material Components
                                                                                                                              1. Color System
                                                                                                                                1. Typography
                                                                                                                                  1. Elevation and Shadows
                                                                                                                                    1. Motion and Animation
                                                                                                                                  2. User Input Handling
                                                                                                                                    1. Touch Events
                                                                                                                                      1. Touch Event System
                                                                                                                                        1. Event Handling Methods
                                                                                                                                          1. Gesture Detection
                                                                                                                                            1. Multi-touch Support
                                                                                                                                            2. Click Handling
                                                                                                                                              1. OnClickListener
                                                                                                                                                1. OnLongClickListener
                                                                                                                                                  1. Touch Feedback
                                                                                                                                                  2. Input Validation
                                                                                                                                                    1. Text Input Validation
                                                                                                                                                      1. Form Validation
                                                                                                                                                        1. Error Handling
                                                                                                                                                          1. User Feedback

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                                                                                                                                                      4. Core Application Components

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                                                                                                                                                      6. Advanced UI Components