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@ -8,9 +8,11 @@ import android.view.MotionEvent |
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import android.widget.Scroller |
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import androidx.annotation.CallSuper |
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import androidx.interpolator.view.animation.FastOutLinearInInterpolator |
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import com.google.android.material.snackbar.Snackbar |
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import io.legado.app.ui.widget.page.ContentView |
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import io.legado.app.ui.widget.page.PageView |
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import io.legado.app.utils.screenshot |
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import io.legado.app.utils.snackbar |
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import kotlin.math.abs |
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abstract class PageDelegate(protected val pageView: PageView) { |
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@ -42,6 +44,8 @@ abstract class PageDelegate(protected val pageView: PageView) { |
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protected var atTop: Boolean = false |
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protected var atBottom: Boolean = false |
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private var snackbar: Snackbar? = null |
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private val scroller: Scroller by lazy { |
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Scroller( |
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pageView.context, |
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@ -285,12 +289,36 @@ abstract class PageDelegate(protected val pageView: PageView) { |
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fun hasPrev(): Boolean { |
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//上一页的参数配置 |
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direction = Direction.PREV |
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return pageView.pageFactory?.hasPrev() == true |
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val hasPrev = pageView.pageFactory?.hasPrev() == true |
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if (!hasPrev) { |
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snackbar ?: let { |
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snackbar = pageView.snackbar("没有上一页") |
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} |
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snackbar?.let { |
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if (!it.isShown) { |
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it.setText("没有上一页") |
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it.show() |
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} |
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} |
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} |
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return hasPrev |
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} |
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fun hasNext(): Boolean { |
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//进行下一页的配置 |
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direction = Direction.NEXT |
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return pageView.pageFactory?.hasNext() == true |
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val hasNext = pageView.pageFactory?.hasNext() == true |
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if (!hasNext) { |
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snackbar ?: let { |
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snackbar = pageView.snackbar("没有下一页") |
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} |
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snackbar?.let { |
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if (!it.isShown) { |
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it.setText("没有下一页") |
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it.show() |
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} |
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} |
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} |
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return hasNext |
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} |
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} |