Question

我在一个版面上有2个网页浏览量。我想要触摸，触摸的视图会变得更大（更宽）而牺牲另一个视图，我该怎么做？

谢谢！

Answer 1

子类WebView：

public class MyWebView extends WebView{

    private MyActivity mActivity;

    //Call this on each webview in activity's onCreate after 
        //instantiating the web views. i.e. after setContentView() 
        //and assigning it to a variable with findViewById() or 
        //after programmatically creating the web view.
    public setActivity(MyActivity activity){
        mActivity = activity;
    }

    @Override
    public boolean onTouchEvent(MotionEvent event){
        if (event.getAction()==ACTION_POINTER_DOWN && mActivity!=null){
            mActivity.onWebviewTouched(self);
        }
        super.onTouchEvent(event);
    }

}

在你的活动中：

public void onWebviewTouched(MyWebView webView) {
    if (webView == mWebviewLeft){
        //grow left webview if it isn't already grown, and shrink right webview.
    } else if (webView == mWebviewRight) {
        //grow right webview if it isn't already grown, and shrink left webview.
    }
}

使用Animation类及其子类可以平滑地修改视图的宽度。如果使用LinearLayout，您可以将一个视图的布局权重设置为常量值，并简单地为另一个视图的布局权重设置动画，使其大于或小于该常量值。

如果您只是想要即时更改，只需使用LayoutParams直接设置视图宽度。

触摸时更改webview宽度

1 个答案: