我試圖讓 mpandroidchart 中的折線圖忽略 fragmentviewpager，并且在觸摸視圖時只移動折線圖而不移動 viewpager。我的問題是如何存檔？我找到了這個解決方案，但不知道如何實施，也許你們可以幫助我了解如何實施它？ https://github.com/PhilJay/MPAndroidChart/issues/1885#issuecomment-267568663公共類 PagerAdapter 擴展 FragmentStatePagerAdapter {int mNumberOfTabs;public PagerAdapter(FragmentManager fm, int NumberOfTabs) { super(fm); this.mNumberOfTabs = NumberOfTabs;}@Overridepublic Fragment getItem(int position) { switch (position) { case 0: IncomeOutcomeOverviewFragment incomeOutcomeOverviewFragment = new IncomeOutcomeOverviewFragment(); return incomeOutcomeOverviewFragment; case 1: IncomeFragment incomeFragment = new IncomeFragment(); return incomeFragment; case 2: OutcomeFragment outcomeFragment = new OutcomeFragment(); return outcomeFragment; default: return null; }}@Overridepublic int getCount() { return mNumberOfTabs;}}
2 回答
千巷貓影
TA貢獻1829條經(jīng)驗 獲得超7個贊
我認為您想要的不是可滑動的視圖尋呼機，因為您必須像這樣創(chuàng)建自定義視圖尋呼機
更新@anomynous建議的更改
public class NonSwipeableViewPager extends ViewPager {
boolean enabled = false;
public NonSwipeableViewPager(Context context) {
super(context);
setMyScroller();
}
public NonSwipeableViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
setMyScroller();
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return false;
}
return super.onInterceptTouchEvent(event);
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return false;
}
return super.onTouchEvent(event);
}
//down one is added for smooth scrolling
private void setMyScroller() {
try {
Class<?> viewpager = ViewPager.class;
Field scroller = viewpager.getDeclaredField("mScroller");
scroller.setAccessible(true);
scroller.set(this, new MyScroller(getContext()));
} catch (Exception e) {
e.printStackTrace();
}
}
public class MyScroller extends Scroller {
public MyScroller(Context context) {
super(context, new DecelerateInterpolator());
}
@Override
public void startScroll(int startX, int startY, int dx, int dy, int duration) {
super.startScroll(startX, startY, dx, dy, 350 /*1 secs*/);
}
}
public void setPagingDisabled(boolean enabled) {
this.enabled = enabled;
}
}
Then on my linechart I used onChartGestureStart and onChartGestureEnd to enable or disable the pageview:
@Override
public void onChartGestureStart(MotionEvent me, ChartTouchListener.ChartGesture lastPerformedGesture) {
nonSwipeableViewPager.setPagingDisabled(true);
}
@Override
public void onChartGestureEnd(MotionEvent me, ChartTouchListener.ChartGesture lastPerformedGesture) {
nonSwipeableViewPager.setPagingDisabled(false);
}
用 xml 中的自定義 viewpager 替換默認 viewpager
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