Mastodon/SubwayTooter-Android-App
1
0
Fork 0
mirror of https://github.com/tateisu/SubwayTooter synced 2025-01-30 10:34:53 +01:00
Code Issues Releases Wiki Activity

内蔵メディアビューアで上下フリックで閉じる。Chromwbookでタスクバーに戻るボタンが隠れる問題の対策

Browse Source
This commit is contained in:
tateisu 2018-12-04 05:00:03 +09:00
parent c1d83fc674
commit db4c85d2cd
2 changed files with 75 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
app/src/main/java/jp/juggler/subwaytooter/ActMediaViewer.kt
View File

@ -233,9 +233,14 @@ class ActMediaViewer : AppCompatActivity(), View.OnClickListener {
findViewById<View>(R.id.btnMore).setOnClickListener(this)
pbvImage.setCallback(object : PinchBitmapView.Callback {
override fun onSwipe(delta : Int) {
override fun onSwipe(deltaX : Int,deltaY:Int) {
if(isDestroyed) return
loadDelta(delta)
if( deltaX != 0) {
loadDelta(deltaX)
}else{
log.d("finish by vertical swipe")
finish()
}
}
override fun onMove(

106
app/src/main/java/jp/juggler/subwaytooter/view/PinchBitmapView.kt
View File

@ -13,6 +13,9 @@ import android.view.VelocityTracker
import android.view.View
import jp.juggler.util.LogCategory
import jp.juggler.util.runOnMainLooper
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.sqrt
class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int) :
View(context, attrs, defStyle) {
@ -65,19 +68,19 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
private var bPointerCountChanged : Boolean = false
// ページめくりに必要なスワイプ強度
private var swipe_velocity : Float = 0.toFloat()
private var swipe_velocity2 : Float = 0.toFloat()
private var swipe_velocity = 0f
private var swipe_velocity2 = 0f
// 指を動かしたと判断する距離
private var drag_width : Float = 0.toFloat()
private var drag_length = 0f
private var time_touch_start : Long = 0
private var time_touch_start = 0L
// フリック操作の検出に使う
private var velocityTracker : VelocityTracker? = null
private var click_time : Long = 0
private var click_count : Int = 0
private var click_time = 0L
private var click_count = 0
// 移動後の指の位置
internal val pos = PointerAvg()
@ -120,13 +123,13 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
val density = context.resources.displayMetrics.density
swipe_velocity = 1000f * density
swipe_velocity2 = 250f * density
drag_width = 4f * density // 誤反応しがちなのでやや厳しめ
drag_length = 4f * density // 誤反応しがちなのでやや厳しめ
}
// ページめくり操作のコールバック
interface Callback {
fun onSwipe(delta : Int)
fun onSwipe(deltaX : Int, deltaY : Int)
fun onMove(bitmap_w : Float, bitmap_h : Float, tx : Float, ty : Float, scale : Float)
}
@ -177,7 +180,7 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
return true
}
private var defaultScale :Float = 1f
private var defaultScale : Float = 1f
// 表示位置の初期化
// 呼ばれるのは、ビットマップを変更した時、ビューのサイズが変わった時、画像をクリックした時
@ -216,7 +219,7 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
defaultScale = 1f
scale_min = 1f
scale_max = 1f
current_scale = defaultScale
current_trans_y = 0f
current_trans_x = 0f
@ -319,36 +322,64 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
// 指の数を変えていないならページめくり操作かもしれない
// 「画像を動かした」かどうかのチェック
val image_moved = max(
abs(current_trans_x - start_image_trans_x),
abs(current_trans_y - start_image_trans_y)
)
if(image_moved >= drag_length) {
log.d("image moved. not flick action. $image_moved")
return
}
velocityTracker.computeCurrentVelocity(1000)
val xv = velocityTracker.xVelocity
val yv = velocityTracker.yVelocity
val vx = velocityTracker.xVelocity
val vy = velocityTracker.yVelocity
val avx = abs(vx)
val avy = abs(vy)
val velocity = sqrt(vx * vx + vy * vy)
val aspect = try {
avx / avy
} catch(ex : Throwable) {
Float.MAX_VALUE
}
val image_move_x = Math.abs(current_trans_x - start_image_trans_x)
val image_move_y = Math.abs(current_trans_y - start_image_trans_y)
val draw_w = bitmap_w * current_scale
if(Math.abs(xv) < Math.abs(yv) / 8) {
// 指を動かした方向の角度が左右ではなかった
log.d("flick is vertical.")
when {
aspect >= 0.9f -> {
// 指を動かした方向が左右だった
val vMin = when {
current_scale * bitmap_w <= view_w -> swipe_velocity2
else -> swipe_velocity
}
if(velocity < vMin) {
log.d("velocity $velocity not enough to pagingX")
return
}
log.d("pagingX! m=$image_moved a=$aspect v=$velocity")
runOnMainLooper { callback?.onSwipe(if(vx >= 0f) - 1 else 1, 0) }
}
} else if(Math.abs(xv) < (if(draw_w <= view_w) swipe_velocity2 else swipe_velocity)) {
// 左右方向の強さが足りなかった
log.d("velocity %f not enough to paging", xv)
aspect <= 0.333f -> {
// 指を動かした方向が上下だった
val vMin = when {
current_scale * bitmap_h <= view_h -> swipe_velocity2
else -> swipe_velocity
}
if(velocity < vMin) {
log.d("velocity $velocity not enough to pagingY")
return
}
log.d("pagingY! m=$image_moved a=$aspect v=$velocity")
runOnMainLooper { callback?.onSwipe(0, if(vy >= 0f) - 1 else 1) }
}
} else if(image_move_x >= drag_width || image_move_y >= drag_width * 5f) {
// 「画像を動かした」かどうかの最終チェック
log.d(
"image was moved. not paging action. %f %f ",
image_move_x / drag_width,
image_move_y / drag_width
)
} else {
log.d(
"paging! %f %f %f", image_move_x / drag_width, image_move_y / drag_width, xv
)
runOnMainLooper { callback?.onSwipe(if(xv >= 0f) - 1 else 1) }
else -> log.d("flick is not horizontal/vertical. aspect=$aspect")
}
}
}
@ -405,7 +436,6 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
start_image_trans_y = current_trans_y
start_image_scale = current_scale
}
// 画面上の指の位置から画像中の指の位置を調べる
@ -458,7 +488,7 @@ class PinchBitmapView(context : Context, attrs : AttributeSet?, defStyle : Int)
val move_y = pos.avg[1] - start_pos.avg[1]
// 「指を動かした」と判断したらフラグを立てる
if(Math.abs(move_x) >= drag_width || Math.abs(move_y) >= drag_width) {
if(Math.abs(move_x) >= drag_length || Math.abs(move_y) >= drag_length) {
bDrag = true
}