app

package

v0.0.0-...-3cc54d5 Latest Latest Go to latest Published: Nov 6, 2022 License: MIT Imports: 13 Imported by: 50

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Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/xlab/android-go

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Documentation ¶

Overview ¶

Package app implements a NativeActivity glue layer required to properly handle the startup process and the native activity events.

Import this package into your Go application to make it Android-compatible.

Constants ¶

This section is empty.

Variables ¶

View Source

var LogInputEvents = func(ev *android.InputEvent) {
	switch android.InputEventGetType(ev) {
	case android.InputEventTypeKey:
		key := android.KeyEventGetKeyCode(ev)
		log.Printf("key event [%d]", key)
	case android.InputEventTypeMotion:
		str := "motion event "
		fingers := android.MotionEventGetPointerCount(ev)
		for i := uint32(0); i < fingers; i++ {
			x := android.MotionEventGetX(ev, i)
			y := android.MotionEventGetY(ev, i)
			pressure := android.MotionEventGetPressure(ev, i)
			str += fmt.Sprintf("[%.0f; %.0f; %.2f]", x, y, pressure)
		}
		log.Println(str)
	}
}

View Source

var SkipInputEvents = func(ev *android.InputEvent) {}

Functions ¶

func HandleInputQueues ¶

func HandleInputQueues(queueChan <-chan *android.InputQueue, onProcessed func(),
	evHandler func(ev *android.InputEvent))

func Main ¶

func Main(fn func(app NativeActivity))

func SetLogTag ¶

func SetLogTag(tag string)

Types ¶

type ActivityEvent ¶

type ActivityEvent struct {
	Activity *android.NativeActivity
	Kind     ActivityEventKind
}

type ActivityEventKind ¶

type ActivityEventKind string

const (
	OnConfigurationChanged ActivityEventKind = "onConfigurationChanged"
	OnLowMemory            ActivityEventKind = "onLowMemory"
)

type AssetReader ¶

type AssetReader struct {
	// contains filtered or unexported fields
}

AssetReader represents an asset opened for reading

func (*AssetReader) Close ¶

func (r *AssetReader) Close() error

Close frees the resources associated with the AssetReader, rendering it unusable. It always returns nil.

func (*AssetReader) Read ¶

func (r *AssetReader) Read(b []byte) (n int, err error)

Read reads up to len(b) bytes from the AssetReader. It returns the number of bytes read and or any error encountered. At end of the asset, Read returns 0, io.EOF.

type ContentRectEvent ¶

type ContentRectEvent struct {
	Activity *android.NativeActivity
	Rect     *android.Rect
}

type InputQueueEvent ¶

type InputQueueEvent struct {
	Activity *android.NativeActivity
	Queue    *android.InputQueue
	Kind     InputQueueEventKind
}

type InputQueueEventKind ¶

type InputQueueEventKind string

const (
	QueueCreated   InputQueueEventKind = "queueCreated"
	QueueDestroyed InputQueueEventKind = "queueDestroyed"
)

type LifecycleEvent ¶

type LifecycleEvent struct {
	Activity *android.NativeActivity
	Kind     LifecycleEventKind
}

type LifecycleEventKind ¶

type LifecycleEventKind string

const (
	OnCreate  LifecycleEventKind = "onCreate"
	OnDestroy LifecycleEventKind = "onDestroy"
	OnStart   LifecycleEventKind = "onStart"
	OnStop    LifecycleEventKind = "onStop"
	OnPause   LifecycleEventKind = "onPause"
	OnResume  LifecycleEventKind = "onResume"
)

type NativeActivity ¶

type NativeActivity interface {
	InitDone()
	NativeWindowRedrawDone()
	InputQueueHandled()
	NativeActivity() *android.NativeActivity
	LifecycleEvents() <-chan LifecycleEvent
	HandleSaveInstanceState(fn SaveStateFunc)
	HandleWindowFocusEvents(out chan<- WindowFocusEvent)
	HandleNativeWindowEvents(out chan<- NativeWindowEvent)
	HandleInputQueueEvents(out chan<- InputQueueEvent)
	HandleContentRectEvents(out chan<- ContentRectEvent)
	HandleActivityEvents(out chan<- ActivityEvent)
	GetAsset(name string) ([]byte, error)
	OpenAsset(name string) (*AssetReader, error)
}

type NativeWindowEvent ¶

type NativeWindowEvent struct {
	Activity *android.NativeActivity
	Window   *android.NativeWindow
	Kind     NativeWindowEventKind
}

type NativeWindowEventKind ¶

type NativeWindowEventKind string

const (
	NativeWindowCreated      NativeWindowEventKind = "nativeWindowCreated"
	NativeWindowRedrawNeeded NativeWindowEventKind = "nativeWindowRedrawNeeded"
	NativeWindowDestroyed    NativeWindowEventKind = "nativeWindowDestroyed"
)

type SaveStateFunc ¶

type SaveStateFunc func(activity *android.NativeActivity, size uintptr) unsafe.Pointer

type Signal ¶

type Signal struct{}

type WindowFocusEvent ¶

type WindowFocusEvent struct {
	Activity *android.NativeActivity
	HasFocus bool
}

Source Files ¶

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