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40 lines
1.2 KiB
40 lines
1.2 KiB
package com.keylesspalace.tusky.util;
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import androidx.viewpager2.widget.ViewPager2;
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import androidx.recyclerview.widget.RecyclerView;
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import java.lang.reflect.*;
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import java.lang.*;
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/**
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* ViewPager2 written by monkeys!
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*/
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public class ViewPager2Fix {
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/**
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* Thanks to @al.e.shevelev@medium.com for solution
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*/
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public static Field getViewPagerRecyclerViewField() throws NoSuchFieldException {
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Field f = ViewPager2.class.getDeclaredField("mRecyclerView");
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f.setAccessible(true);
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return f;
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}
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public static Field getRecyclerViewTouchSlopField() throws NoSuchFieldException {
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Field f = RecyclerView.class.getDeclaredField("mTouchSlop");
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f.setAccessible(true);
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return f;
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}
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public static void reduceVelocity(ViewPager2 pager, float val) {
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try {
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Field recyclerViewField = getViewPagerRecyclerViewField();
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Field touchSlopField = getRecyclerViewTouchSlopField();
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RecyclerView recyclerView = (RecyclerView)recyclerViewField.get(pager);
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int touchSlop = (int)touchSlopField.get(recyclerView);
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touchSlopField.setInt(recyclerView, (int)(touchSlop*val));
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} catch(Exception e) {
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// all possible exceptions must be caught during tests
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;
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}
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}
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}
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