3

我想知道是否有可能创建一个行为与 Android 手机上的任何浏览器相同的 Android 应用程序,包括:

  • (捏)缩放
  • 平移/滚动

我已经尝试了几件事

  • ZoomView负责第一点,但当布局大于屏幕时无法正常工作(滚动/平移部分进入:如果在屏幕外,布局会被切断,并且在放入 a 时表现奇怪ScrollView) .
  • 对于平移/滚动,我尝试了一个TwoDScrollView,但是这个和上面的不能相处,就像一个正常的ScrollView.
  • ZoomableRelativeLayout确实有效,即使实现了捏合,但这仅适用于图像。例如,可点击区域在缩放/平移时不会移动。所以这也是不行的。

选择

  • 使用WebView/ PhoneGap,但我真的不是HTML(5)or方面的专家JavaScript

问题

  • 如果我的布局可以比屏幕大,并使其完全可缩放和可平移,最好是原生的,那么最好的方法是什么?

我读过的帖子

当前的实现和缺点

View zoomableLayout = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.actuallayout, null, false);
zoomableLayout.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

zoomView = new ZoomView(this);
zoomView.addView(zoomableLayout);
LinearLayout main_container = (LinearLayout) findViewById(R.id.main_container);
main_container.addView(zoomView);   

只要未缩放的布局适合屏幕,这效果就很好。一旦它变大,我需要实现 a ScrollView,功能就不像希望的那样或预期的那样。例如,如果我向下滚动并放大,我不能一直向上滚动,只能滚动到放大时可见的内容。

4

1 回答 1

1

我强烈建议HTML5通过PhoneGap。这并不难。

编辑:需要几个步骤:

  1. 将cordova添加为库(在我的情况下是cordova-2.5.0.jar
  2. 创建一个将处理返回的 javascript 调用的类(见JSComm.java下文)
  3. 使用 webview 创建一个活动DroidGap(见下文);请注意,ApacheCordovaActivity 在较新的版本中将其重命名为)
  4. 创建一个 javascript 文件(如下)
  5. 创建一个 HTML 页面(如下),其中包含对您的 javascript 文件和 cordova javascript 文件的引用(在我的例子中cordova-2.5.0.js
  6. 添加一些xml(见下文)/res/xml/config.xml
  7. 不要忘记将您的活动添加到清单中。

JSComm.java

public class JSComm extends CordovaPlugin {     
    public boolean execute(final String action, final JSONArray args, CallbackContext callbackContext) {
        final CallbackContextWrapper callbackContextWrapper = new CallbackContextWrapper(callbackContext);
        if (action.equals("MyString")
            return handleIt(args.getJSONObject(0));
        else 
            return false;
    }
}

MyCordovaActivity.java

public class FormViewer extends DroidGap {
    @SuppressLint("SetJavaScriptEnabled")
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.init();
        super.appView.getSettings().setJavaScriptEnabled(true);
        super.appView.getSettings().setSupportZoom(true);
        super.appView.getSettings().setBuiltInZoomControls(true);
        super.appView.getSettings().setDisplayZoomControls(false);
        super.appView.getSettings().setUseWideViewPort(true);
        super.appView.getSettings().setLoadWithOverviewMode(true);
        super.loadUrl("file:///" + myHTMLFilePath);
    }

    public void nextPage() {
        this.sendJavascript("nextPage()"); //example
    }
}

JSComm.js

function nextPage() {
  var inputted = trytogetinputs(); //some method: get all html input elements
  cordova.exec(
      null, //what to execute when success? Nothing in this case.
      function(args) {
          addErrorBorders(args); //What to do if fail? add some error borders in this case.
      },
      "JSComm", //name of CordovaPlugin class
      "MyString", //to identify what method was run
      [inputted] //some data you can send along.
  );
}

你的 HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> 
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>Title</title>
    <link rel="stylesheet" type="text/css" href="common.css">
    <script type="text/javascript" src="../../jquery.min.js"></script>
    <script type="text/javascript" charset="utf-8" src="../../cordova-2.5.0.js"></script><!--Cordova js file-->
    <script type="text/javascript" charset="utf-8" src="../../javacomm.js"></script><!--Your js file-->
    <script type="text/javascript" src="../../jquery-ui.min.js"></script>
    <script type="text/javascript" src="../../jquery.signature.min.js"></script>
  </head>
  <body background="0.png">...etc...</body></html>

xml

<?xml version="1.0" encoding="utf-8"?>
<!--
       Licensed to the Apache Software Foundation (ASF) under one
       or more contributor license agreements.  See the NOTICE file
       distributed with this work for additional information
       regarding copyright ownership.  The ASF licenses this file
       to you under the Apache License, Version 2.0 (the
       "License"); you may not use this file except in compliance
       with the License.  You may obtain a copy of the License at

         http://www.apache.org/licenses/LICENSE-2.0

       Unless required by applicable law or agreed to in writing,
       software distributed under the License is distributed on an
       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
       KIND, either express or implied.  See the License for the
       specific language governing permissions and limitations
       under the License.
-->
<cordova>
    <!--
    access elements control the Android whitelist.
    Domains are assumed blocked unless set otherwise
     -->

    <access origin="http://127.0.0.1*"/> <!-- allow local pages -->

    <!-- <access origin="https://example.com" /> allow any secure requests to example.com -->
    <!-- <access origin="https://example.com" subdomains="true" /> such as above, but including subdomains, such as www -->
    <access origin=".*"/>

    <!-- <content src="http://mysite.com/myapp.html" /> for external pages -->
    <content src="index.html" />

    <log level="DEBUG"/>
    <preference name="useBrowserHistory" value="true" />
    <preference name="exit-on-suspend" value="false" />
    <preference name="fullscreen" value="false" />
<plugins>
    <plugin name="App" value="org.apache.cordova.App"/>
    <plugin name="Geolocation" value="org.apache.cordova.GeoBroker"/>
    <plugin name="Device" value="org.apache.cordova.Device"/>
    <plugin name="Accelerometer" value="org.apache.cordova.AccelListener"/>
    <plugin name="Compass" value="org.apache.cordova.CompassListener"/>
    <plugin name="Media" value="org.apache.cordova.AudioHandler"/>
    <plugin name="Camera" value="org.apache.cordova.CameraLauncher"/>
    <plugin name="Contacts" value="org.apache.cordova.ContactManager"/>
    <plugin name="File" value="org.apache.cordova.FileUtils"/>
    <plugin name="NetworkStatus" value="org.apache.cordova.NetworkManager"/>
    <plugin name="Notification" value="org.apache.cordova.Notification"/>
    <plugin name="Storage" value="org.apache.cordova.Storage"/>
    <plugin name="FileTransfer" value="org.apache.cordova.FileTransfer"/>
    <plugin name="Capture" value="org.apache.cordova.Capture"/>
    <plugin name="Battery" value="org.apache.cordova.BatteryListener"/>
    <plugin name="SplashScreen" value="org.apache.cordova.SplashScreen"/>
    <plugin name="Echo" value="org.apache.cordova.Echo" />
    <plugin name="Globalization" value="org.apache.cordova.Globalization"/>
    <plugin name="InAppBrowser" value="org.apache.cordova.InAppBrowser"/>
    <plugin name="JSComm" value="com.example.application.JSComm"/>
</plugins>
</cordova>
于 2013-08-26T13:54:01.357 回答