[英]How to call removeView() when trying to set page control?
我試圖在swipeview中設置一些圖像,並在該視圖中添加pagecontrol,如下所示:
//In onCreate
swipeView = (SwipeView) findViewById(R.id.swipe_view);
swipeView.setOnClickListener(this);
pageControl = (PageControl) findViewById(R.id.page_control);
pageControl.setEnabled(true);
setPagination();
private void setPagination() {
for (int i = 0; i < lnoitem.lnoImageList.size(); i++)
{
FrameLayout frame = new FrameLayout(MyAffairDetails.this);
View child = MyAffairDetails.this.getLayoutInflater().inflate(R.layout.swipe_view_affair, null);
frame.addView(child);
final ImageView imgThumb = (ImageView) child.findViewById(R.id.imgThumb);
final WebView webViewThumb = (WebView) child.findViewById(R.id.WebView);
webViewThumb.getSettings().setLoadWithOverviewMode(true);
webViewThumb.getSettings().setUseWideViewPort(false);
webViewThumb.getSettings().setBuiltInZoomControls(false);
webViewThumb.setVerticalScrollBarEnabled(false);
webViewThumb.setScrollbarFadingEnabled(false);
webViewThumb.setScrollContainer(false);
webViewThumb.setFocusable(false);
webViewThumb.setClickable(false);
webViewThumb.setBackgroundColor(Color.parseColor("#00000000"));
String path = "";
String name = lnoitem.lnoImageList.get(i).getBigImage();
String html = "<body style='margin:0;padding:0;' ><img src='"+name+"' width='100%' height='100%' /></body>";
webViewThumb.loadDataWithBaseURL(path, html, "text/html", "utf-8", "");
webViewThumb.setWebViewClient(new WebViewClient()
{
@Override
public boolean shouldOverrideUrlLoading(WebView view, String urlNewString) {
return true;
}
public void onPageStarted(WebView view, String url) { }
@Override
public void onPageFinished(WebView view, String url) {
imgThumb.setVisibility(View.GONE);
webViewThumb.setVisibility(View.VISIBLE);
}
});
swipeView.addView(frame);
}
swipeView.setPageControl(pageControl);
}
}
這工作正常,但是當我添加一個新圖像並再次調用該方法時,在swipeView.setPageControl(pageControl);處出現異常。
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3339)
at android.view.ViewGroup.addView(ViewGroup.java:3210)
at android.view.ViewGroup.addView(ViewGroup.java:3155)
at android.view.ViewGroup.addView(ViewGroup.java:3131)
xml:
<RelativeLayout
android:id="@+id/xLinea"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="15dp"
android:layout_marginLeft="1dp"
android:layout_marginRight="1dp"
android:gravity="center_horizontal" >
<uk.co.jasonfry.android.tools.ui.SwipeView
android:id="@+id/swipe_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerInParent="true"
android:layout_marginTop="10dp"
android:gravity="center|center_horizontal"
android:orientation="horizontal" >
</uk.co.jasonfry.android.tools.ui.SwipeView>
<uk.co.jasonfry.android.tools.ui.PageControl
android:id="@+id/page_control"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_below="@+id/swipe_view"
android:gravity="center|center_horizontal"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:layout_centerInParent="true"
android:orientation="horizontal" >
</uk.co.jasonfry.android.tools.ui.PageControl>
</RelativeLayout>
誰能告訴我如何在上面給定的代碼中調用removeview()或如何避免此異常?
大概吧
swipeView.setPageControl(pageControl);
將swipeView設置為pageControl的父級。 嘗試在設置像這樣的東西之前確定
pageControl.getParent();
也許您不應該在活動布局中包含pageControl。 相反,這
pageControl = (PageControl) findViewById(R.id.page_control);
做這個
pageControl = new PageControl(this);
然后
swipeView.setPageControl(pageControl);
應該管用。
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