Android-Mailto链接不起作用

Question

我在Android中有一个webview和一个主页，有一些mailto链接，当我试图在mailclient中从我的webview打开mailto链接时，webview总是像普通网页一样打开邮件地址。

有人能看看我的代码，告诉我出了什么问题吗？

谢谢你的帮助。

1<?xml version="1.0" encoding="utf-8"?>
2<manifest xmlns:android="http://schemas.android.com/apk/res/android"
3 package="com.example.TEST"
4 android:versionCode="1"
5 android:versionName="1.5" android:installLocation="auto">
6
7 <uses-permission android:name="android.permission.INTERNET" />
8 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
9 <uses-permission android:name="android.permission.ACCESS_GPS" />
10  <uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
11  <uses-permission android:name="android.permission.ACCESS_LOCATION" />
12  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
13
14 <uses-sdk
15 android:minSdkVersion="8"
16 android:targetSdkVersion="17" />
17
18 <application
19 android:allowBackup="true"
20 android:icon="@drawable/ic_launcher"
21 android:label="@string/app_name"
22 android:theme="@style/AppTheme" >
23 <activity
24 android:name="com.example.lauffinderpro.MainActivity"
25 android:label="@string/app_name" >
26 <intent-filter>
27 <action android:name="android.intent.action.MAIN" />
28
29 <category android:name="android.intent.category.LAUNCHER" />
30 </intent-filter>
31 </activity>
32 </application>
33
34</manifest>

1<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
2 xmlns:tools="http://schemas.android.com/tools"
3 android:id="@+id/FrameLayout1"
4 android:layout_width="match_parent"
5 android:layout_height="match_parent"
6 android:paddingBottom="@dimen/vertical"
7 android:paddingLeft="@dimen/horizontal"
8 android:paddingRight="@dimen/horizontal"
9 android:paddingTop="@dimen/vertical"
10 tools:context=".MainActivity" >
11
12 <LinearLayout
13 android:layout_width="match_parent"
14 android:layout_height="match_parent"
15 android:orientation="vertical" >
16
17 <WebView
18 android:id="@+id/webView1"
19 android:layout_width="match_parent"
20 android:layout_height="0dp"
21 android:layout_weight="0.05" />
22
23 <FrameLayout
24 android:layout_width="match_parent"
25 android:layout_height="wrap_content"
26 android:layout_weight="0.00" >
27
28 <LinearLayout
29 android:layout_width="match_parent"
30 android:layout_height="wrap_content"
31 android:baselineAligned="true" >
32
33
34 <Button
35 android:id="@+id/button1"
36 android:layout_width="0dp"
37 android:layout_weight="2"
38 android:layout_height="match_parent"
39 android:background="@drawable/upgradetest"
40 android:onClick="button1click" />
41
42 <Button
43 android:id="@+id/button2"
44 style="?android:attr/buttonStyleSmall"
45 android:layout_width="0dp"
46 android:layout_weight="2"
47 android:layout_height="match_parent"
48 android:background="@drawable/globaltest"
49 android:onClick="button2click" />
50
51 <Button
52 android:id="@+id/button3"
53 style="?android:attr/buttonStyleSmall"
54 android:layout_width="0dp"
55 android:layout_weight="2"
56 android:layout_height="match_parent"
57 android:background="@drawable/datetest"
58 android:onClick="button3click" />
59
60 <Button
61 android:id="@+id/button5"
62 style="?android:attr/buttonStyleSmall"
63 android:layout_width="0dp"
64 android:layout_weight="2"
65 android:layout_height="match_parent"
66 android:layout_gravity="right"
67 android:background="@drawable/mehrtest"
68 android:onClick="button5click" />
69 </LinearLayout>
70
71 </FrameLayout>
72
73 </LinearLayout>
74
75</FrameLayout>

1package com.example.lauffinderpro;
2
3import java.net.URISyntaxException;
4
5import android.net.MailTo;
6import android.net.Uri;
7import android.os.Bundle;
8import android.annotation.SuppressLint;
9import android.app.Activity;
10import android.app.AlertDialog;
11import android.content.Context;
12import android.content.DialogInterface;
13import android.content.Intent;
14import android.util.Log;
15import android.view.KeyEvent;
16import android.view.Menu;
17import android.view.View;
18import android.view.View.OnClickListener;
19import android.webkit.GeolocationPermissions;
20import android.webkit.WebChromeClient;
21import android.webkit.WebView;
22import android.webkit.WebViewClient;
23import android.widget.Button;
24import android.widget.ImageButton;
25
26public class MainActivity extends Activity {
27  
28  
29  protected void onCreate(Bundle savedInstanceState) {
30  super.onCreate(savedInstanceState);
31  setContentView(R.layout.activity_main);
32  
33  
34  //startet Upgrade als Standard
35  
36  @SuppressLint("SetJavaScriptEnabled")
37  
38  
39  WebView myWebView = (WebView) findViewById (R.id.webView1);
40  myWebView.getSettings().setJavaScriptEnabled(true);
41  myWebView.loadUrl("WEBSITE");
42  myWebView.setWebViewClient(new WebViewClient());
43  
44  
45  }
46  
47  
48  
49  /*public boolean onCreateOptionsMenu(Menu menu) {
50  // Inflate the menu; this adds items to the action bar if it is present.
51  getMenuInflater().inflate(R.menu.main, menu);
52  return true;
53  }
54  */
55
56  
57  public boolean shouldOverrideUrlLoading(WebView view, String url) {
58  if (url.startsWith("mailto:")) {
59  Intent intent = new Intent(Intent.ACTION_VIEW,
60  Uri.parse(url));
61  startActivity(intent);
62  }else if(url.startsWith("http:") || url.startsWith("https:")) {
63  view.loadUrl(url);
64  }
65  return true;
66  }
67  
68  
69  public void button1click (View view) {
70  
71  Code
72  
73  }
74  
75  
76  public void button2click (View view) {
77  
78  Code
79  
80  }
81
82
83  
84  public void button3click (View view) {
85  
86  Code
87  
88  }
89  
90  
91  
92  public void button5click (View view) {
93  
94  Code
95  
96  }
97
98  
99  
100}

如果我尝试这样做，我会得到错误消息“String类型的方法replaseFirst（String）是未定义的”。因此，我将url.replaseFirst更改为url.replaceFirst，但他需要一个secound参数，所以我必须编写url.replaceFirst（“mailto：”，X)；。对于X，我可以键入mail、URL或null。我对每个人进行了测试，每个人都得到了必须添加返回语句的消息，所以我使用return false进行了测试。现在我有了这个代码：

public class MyWebViewClient extends WebViewClient {
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
                if(url.startsWith("mailto:")) {
                      String mail = url.replaceFirst ("mailto:", mail);
                      Intent intent = new Intent(Intent.ACTION_SEND);
                      intent.setType("message/rfc822");
                      intent.putExtra(Intent.EXTRA_EMAIL, mail );


                      startActivity(Intent.createChooser(intent, "Send Email"));
             }
                return false;
        }
    }

这不起作用。因此，我尝试intent.settype（“message/RFC822”）；而不是intent.settype（“text/plain”）；，但这也不起作用。

我做错了什么？

新代码：

public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if(url.startsWith("mailto:")) {
                String mail = url.replaceFirst("mailto:", "");
                Intent intent = new Intent(Intent.ACTION_SEND);
                intent.setType("text/plain");
                intent.putExtra(Intent.EXTRA_EMAIL, mail );

                startActivity(Intent.createChooser(intent, "Send Email"));
             }  
            else if(url.startsWith("http:") || url.startsWith("https:")) {
                    view.loadUrl(url);
                }
                return true;
        }

Answer 1

要强制打开邮件客户端，您可以尝试：

if(url.startsWith("mailto:")) {
  String mail = url.replaceFirst("mailto:", "");
  Intent intent = new Intent(Intent.ACTION_SEND);
  intent.setType("text/plain");
  intent.putExtra(Intent.EXTRA_EMAIL, mail );
  // intent.putExtra(Intent.EXTRA_SUBJECT, "Subject"); // if you want extra
  // intent.putExtra(Intent.EXTRA_TEXT, "I'm email body."); // if you want extra

  startActivity(Intent.createChooser(intent, "Send Email"));
} else if ... {
   // your code as is
}

但是其他“发送”应用程序也打开了，这取决于intent.action_send的支持

这里建议使用intent.settype（“text/plain”）代替intent.settype（“message/RFC822”）；，但我从未测试过。

// ...
WebView myWebView = (WebView) findViewById (R.id.webView1);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.setWebViewClient(new MyWebViewClient()); // you name your class MyWebViewClient not WebViewClient
myWebView.loadUrl("WEBSITE"); // also change line order
// ...