我创建的webview包含checkbox和image。我需要能够检查checkbox或点击image中的webview以打开新的activity。例如，如果我点击checkbox中的image或screen1.html，则必须加载Screen2Activity.java，这将显示第二个webview screen2.html。
<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="content-type">
<style>
body {
background-color: black;
color: white;
text-align:center;
}
header{
color: white;
font-family: verdana;
font-size: 38pt;
text-align:center;
}
subhead {
color:red;
background-color: black;
font-family:verdana;
font-size: 28pt;
text-align:center;
}
normal {
color: white;
font-family: verdana;
font-size: 11pt;
text-align:center;
border: 1px white;
margin: 10px;
}
</style>
</head>
<body>
<header>Screen1</header>
<subhead>TYPE OF PROBLEM</subhead>
<br><br><br><br><br><br>
<normal>
<input type="checkbox" name="1" value="1"> Is this to do with you witnessing other people harming other people?
<br>
(OTHERS TO OTHERS) goto Y
<br><br>
<a href="screen2.html"><img src="image1.gif" title="Home" width=200pt height=200pt /></a>
<br><br><br><br><br>
<input type="checkbox" name="2" value="2">Is this to do with yourself affecting others?
<br>
(SELF TO OTHERS) goto X
<br><br>
<a href="screen2.html"><img src="image11.gif" title="Home" width=200pt height=200pt /></a>
<br><br><br><br><br>
<input type="checkbox" name="3" value="3"> Is this to do with yourself only?
<br>
(SELF TO SELF) goto Z
<br><br>
<a href="screen2.html"><img src="image20.gif" title="Home" width="140" height="109" /></a>
<br><br><br><br><br>
<input type="checkbox" name="4" value="4"> Is this to do with someone (others) affecting you?
<br>
(OTHERS TO SELF)
<br><br>
<a href="screen2.html"><img src="image22.gif" title="Home" width="140" height="109" /></a>
<br><br><br><br><br>
<input type="checkbox" name="5" value="5"> Is this to do with a Force affecting yourself?
<br>
(FORCES TO SELF)
<br><br>
<a href="screen2.html"><img src="image16.gif" title="Home" width="140" height="109" /></a>
<br><br><br><br><br>
<br>
<input type="checkbox" name="main" value="main"> Main menu
<br><br>
<a href="screen2.html"><img src="image4.gif" title="Home" width="140" height="109" /></a>
</normal>
</body>
</html>
package com.example.warre.finalappwritings;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
public class Screen1Activity extends AppCompatActivity {
WebView webView;
@SuppressLint("JavascriptInterface")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_screen1);
webView = (WebView) findViewById(R.id.webview);
webView.loadUrl("file:///android_asset/screen1.html");
startService(new Intent(Screen1Activity.this, SoundService.class));
}
@Override
protected void onStop(){
stopService(new Intent(Screen1Activity.this, SoundService.class));
super.onStop();
}
@Override
protected void onStart() {
startService(new Intent(Screen1Activity.this, SoundService.class));
super.onStart();
}
}
答案 0 :(得分：0)
您可以使用Javascript调用方法
在HTML方面：
<input type="button" value="Say hello" onClick="showAndroidToast('Hello Android!')" />
<script type="text/javascript">
function showAndroidToast(toast) {
Android.showToast(toast);
}
</script>
原生：
public class WebAppInterface {
Context mContext;
/** Instantiate the interface and set the context */
WebAppInterface(Context c) {
mContext = c;
}
/** Show a toast from the web page */
@JavascriptInterface
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
}
}