android浏览器开发小技巧集锦（转）

本人和朋友们做了一段时间浏览器,将一些小技巧分享出来,先写一部分,慢慢写,同时也为我们的浏览器打打广告

我们的浏览器将要上线,名叫沙发浏览

1.网页内的右键菜单

public boolean onLongClick(View view) {
        // 获取点击的元素
        HitTestResult mResult = mWebView.getHitTestResult();

        final int type = mResult.getType();
        switch (type) {
            case HitTestResult.ANCHOR_TYPE:
            case HitTestResult.SRC_ANCHOR_TYPE:
                //点击的是链接
                break;

            case HitTestResult.IMAGE_TYPE:
            case HitTestResult.IMAGE_ANCHOR_TYPE:
            case HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
                //点击的是图片
                break;

            default:
                //点击的是空白处
                break;
        }
        return true;
    }

根据是图片还是链接还是空白做判断

2.网页内的自由复制

转载请注明出处:http://blog.csdn.net/ethan_xue/article/details/7748075

/**
     * 网页里 复制粘贴
     * @param view webView
     * @author ethan
     */
    private void emulateShiftHeld(KeyEvent.Callback view)
    {
        try
        {
            KeyEvent shiftPressEvent = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN,
                    KeyEvent.KEYCODE_SHIFT_LEFT, 0, 0);
            shiftPressEvent.dispatch(view);
        } catch (Exception e)
        {
        }
    }

3.出错界面

webkit自带的出错界面不够霸气,于是改为自己做的出错界面

new WebViewClient()
...此为背景
@Override
        public void onReceivedError(WebView view, int errorCode,
                String description, String failingUrl) {
            view.stopLoading();
            view.clearView();

            // 显示出错界面
            mWebView.loadUrl("file:///android_asset/error.html");
        }

4.点外部链接调用自己的浏览器

在manifest.xml里主activity加入intent

<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 16px; line-height: 25px; text-align: left; "><!-- For these schemes were not particular MIME type has been
                 supplied, we are a good candidate. -->
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="http" />
                <data android:scheme="https" />
                <data android:scheme="about" />
                <data android:scheme="javascript" />
            </intent-filter>
            <!--  For these schemes where any of these particular MIME types
                  have been supplied, we are a good candidate. -->
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.BROWSABLE" />
                <category android:name="android.intent.category.DEFAULT" />
                <data android:scheme="http" />
                <data android:scheme="https" />
                <data android:scheme="inline" />
                <data android:mimeType="text/html"/>
                <data android:mimeType="text/plain"/>
                <data android:mimeType="application/xhtml+xml"/>
                <data android:mimeType="application/vnd.wap.xhtml+xml"/>
            </intent-filter>
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="file" />
            </intent-filter></p>

外部调用就ok了,连file文件都能调用,若自己调用的话

Uri uri = Uri.parse("file://data/data/test.html");
//   Uri uri = Uri.parse("http://m.baidu.com");
  Intent it = new Intent(Intent.ACTION_VIEW, uri);
  context.startActivity(it);

http://blog.csdn.net/ethan_xue/article/details/7748075