webview获取Url高度
16lz
2021-01-26
public class TRSWebView extends WebView { private int lastContentHeight = 0; private static final int MSG_CONTENT_CHANGE = 1; private onContentChangeListener onContentChangeListener = null; private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case MSG_CONTENT_CHANGE: if (onContentChangeListener != null) { onContentChangeListener.onContentChange(); } break; } } }; public TRSWebView(Context context) { this(context, null); } public TRSWebView(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (getContentHeight() != lastContentHeight) { handler.sendEmptyMessage(MSG_CONTENT_CHANGE); lastContentHeight = getContentHeight(); Log.i("www", "contentChange height=" + getContentHeight()); } } public void setOnContentChangeListener(TRSWebView.onContentChangeListener onContentChangeListener) { this.onContentChangeListener = onContentChangeListener; } /** * 监听内容高度发生变化 */ public interface onContentChangeListener { void onContentChange(); }} 源自：https://www.jianshu.com/p/ad22b2649fba
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