web视图滚动使用音量键 [英] Scroll webView with volume keys

问题描述

你怎么滚动web视图瓦特/音量硬键？ ...并且可以将其与缓和呢？如果是这样，怎么样？我是一个小白到Android - 从ActionScript即将结束，任何帮助将大大AP preciated

。

 我R.id.webPg001是一个web视图ID。
 

这是我在哪里现在：

  @覆盖
  公共布尔dispatchKeyEvent（KeyEvent的事件）{
      INT行动= event.getAction（）;
      INT键code = event.getKey code（）;
      滚动型滚动视图;
      滚动视图=（滚动型）findViewById（R.id.webPg001）;
          开关（钥匙code）{
          案例KeyEvent.KEY code_VOLUME_UP：
              如果（动作== KeyEvent.ACTION_UP）{
                  scrollView.pageScroll（ScrollView.FOCUS_UP）;
                  scrollView.computeScroll（）;
              }
              返回true;
          案例KeyEvent.KEY code_VOLUME_DOWN：
              如果（动作== KeyEvent.ACTION_UP）{
          scrollView.pageScroll（ScrollView.FOCUS_DOWN）;
                  scrollView.computeScroll（）;
              }
              返回true;
          默认：
              返回super.dispatchKeyEvent（事件）;
          }
      }
 

解决方案

下面是正确的code：（日Thnx NdrU !!）

  @覆盖
公共布尔dispatchKeyEvent（KeyEvent的事件）{
    INT行动= event.getAction（）;
    INT键code = event.getKey code（）;
    的WebView滚动视图=（web视图）findViewById（R.id.ch01）;
        开关（钥匙code）{
        案例KeyEvent.KEY code_VOLUME_UP：
            如果（动作== KeyEvent.ACTION_DOWN）{
                scrollView.pageUp（假）;
            }
            返回true;
        案例KeyEvent.KEY code_VOLUME_DOWN：
            如果（动作== KeyEvent.ACTION_DOWN）{
                scrollView.pageDown（假）;
            }
            返回true;
        默认：
            返回super.dispatchKeyEvent（事件）;
        }
    }
 

How do you scroll a webView w/ the volume hard keys? ...and can it be done with easing? If so, how? I'm a nooB to Android - Coming over from ActionScript and any help will be greatly appreciated.

my R.id.webPg001 is a WebView id.

This is where I'm at now:

@Override
  public boolean dispatchKeyEvent(KeyEvent event) {
      int action = event.getAction();
      int keyCode = event.getKeyCode();
      ScrollView scrollView;
      scrollView = (ScrollView) findViewById(R.id.webPg001);        
          switch (keyCode) {
          case KeyEvent.KEYCODE_VOLUME_UP:
              if (action == KeyEvent.ACTION_UP) {
                  scrollView.pageScroll(ScrollView.FOCUS_UP);
                  scrollView.computeScroll(); 
              }
              return true;
          case KeyEvent.KEYCODE_VOLUME_DOWN:
              if (action == KeyEvent.ACTION_UP) {
          scrollView.pageScroll(ScrollView.FOCUS_DOWN);
                  scrollView.computeScroll(); 
              }
              return true;
          default:
              return super.dispatchKeyEvent(event);
          }
      }

解决方案

Here is the correct code: (thnx NdrU!!)

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    int action = event.getAction();
    int keyCode = event.getKeyCode();
    WebView scrollView = (WebView) findViewById(R.id.ch01);     
        switch (keyCode) {
        case KeyEvent.KEYCODE_VOLUME_UP:
            if (action == KeyEvent.ACTION_DOWN) {
                scrollView.pageUp(false);   
            }
            return true;
        case KeyEvent.KEYCODE_VOLUME_DOWN:
            if (action == KeyEvent.ACTION_DOWN) {
                scrollView.pageDown(false);
            }
            return true;
        default:
            return super.dispatchKeyEvent(event);
        }
    } 

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