Android Studio mailto Intent 不显示主题和邮件正文

Question

我正在尝试从我的 Android 应用程序发送电子邮件。单击一个按钮，gmail 应该会打开并显示一封包含我之前定义的收件人、主题和电子邮件正文的新电子邮件。到目前为止，我已经尝试发送 Intent.ACTION_VIEW 和 Intent.ACTION_SENDTO。两者都只向收件人显示我的草稿。主题和信息都受到压制。奇怪的是当使用模拟器时，它工作得很好。还试图锁定android错误日志。好像没有权限 这真的是权限问题还是其他原因？我真的很感激任何帮助

这是我的代码：

• 通过 ACTION_VIEW 发送电子邮件

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("mailto:" + to));
intent.putExtra(intent.EXTRA_SUBJECT, subject);
intent.putExtra(intent.EXTRA_TEXT, message);
mainActivity.startActivity(intent);

• 通过 ACTION_SENDTO 发送电子邮件

Intent email = new Intent(Intent.ACTION_SENDTO);
email.setType("message/rfc822");
email.putExtra(Intent.EXTRA_EMAIL, new String[]{to});
email.putExtra(Intent.EXTRA_SUBJECT, subject);
email.putExtra(Intent.EXTRA_TEXT, message);
mainActivity.startActivity(Intent.createChooser(email, "Choose an Email client :"));

• 来自 logcat 的错误消息

2019-12-13 01:30:35.172 29268-29268/? E//system/bin/webview_zygote32: failed to make and chown /acct/uid_99044: Permission denied
2019-12-13 01:30:35.172 29268-29268/? E/Zygote: createProcessGroup(99044, 0) failed: Permission denied
2019-12-13 01:30:35.206 29289-29289/? E/asset: setgid: Operation not permitted
2019-12-13 01:30:35.226 29296-29296/? E/asset: setgid: Operation not permitted
2019-12-13 01:30:35.355 29268-29268/? E/Typeface: Error mapping font file /system/fonts/NotoSansKhmer-Regular.ttf
2019-12-13 01:30:35.356 29268-29268/? E/Typeface: Error mapping font file /system/fonts/NotoSansKhmer-Bold.ttf
2019-12-13 01:30:35.356 29268-29268/? E/Minikin: Could not get cmap table size!
2019-12-13 01:30:35.356 29268-29268/? E/Typeface: Unable to load Family: null:und-Khmr
2019-12-13 01:30:35.484 29268-29268/? E/Typeface: Error mapping font file /system/fonts/LGAka_Light.ttf
2019-12-13 01:30:35.484 29268-29268/? E/Minikin: Could not get cmap table size!
2019-12-13 01:30:35.484 29268-29268/? E/Typeface: Unable to load Family: lg-lgaka:null
2019-12-13 01:30:35.816 29342-29342/? E//system/bin/webview_zygote32: failed to make and chown /acct/uid_99045: Permission denied
2019-12-13 01:30:35.816 29342-29342/? E/Zygote: createProcessGroup(99045, 0) failed: Permission denied
2019-12-13 01:30:35.842 29354-29354/? E/asset: setgid: Operation not permitted
2019-12-13 01:30:35.864 29367-29367/? E/asset: setgid: Operation not permitted
2019-12-13 01:30:36.139 29342-29342/? E/Typeface: Error mapping font file /system/fonts/NotoSansKhmer-Regular.ttf
2019-12-13 01:30:36.139 29342-29342/? E/Typeface: Error mapping font file /system/fonts/NotoSansKhmer-Bold.ttf
2019-12-13 01:30:36.139 29342-29342/? E/Minikin: Could not get cmap table size!
2019-12-13 01:30:36.139 29342-29342/? E/Typeface: Unable to load Family: null:und-Khmr
2019-12-13 01:30:36.362 29342-29342/? E/Typeface: Error mapping font file /system/fonts/LGAka_Light.ttf
2019-12-13 01:30:36.362 29342-29342/? E/Minikin: Could not get cmap table size!
2019-12-13 01:30:36.362 29342-29342/? E/Typeface: Unable to load Family: lg-lgaka:null
2019-12-13 01:30:36.523 4349-4359/? E/GBMv2: FPS Scaler: EXP
2019-12-13 01:30:36.602 29342-29342/? E/WebViewFactory: can't load with relro file; address space not reserved
2019-12-13 01:30:37.058 29220-29220/? E/Gmail: Gmail:EditWebView JS Console: b/119949571:draft.editor.onLoad; source: file:///android_asset/draft_editor_gmail_compiled.js at 89
2019-12-13 01:30:37.146 29220-29220/? E/Gmail: Gmail:EditWebView JS Console: b/119949571:draft.editor.onLoad is finished; source: file:///android_asset/draft_editor_gmail_compiled.js at 90

Answer 1

我想我们有同样的问题。Android API 29 引入了一些关于向其他应用程序发送数据的改进。在此处查看更多详细信息：将简单数据发送到其他应用程序

这是对我有用的解决方案。

Intent selectorIntent = new Intent(Intent.ACTION_SENDTO);
selectorIntent.setData(Uri.parse("mailto:"));

final Intent emailIntent = new Intent(Intent.ACTION_SEND);
emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{"address@mail.com"});
emailIntent.putExtra(Intent.EXTRA_SUBJECT, "The subject");
emailIntent.putExtra(Intent.EXTRA_TEXT, "The email body");
emailIntent.setSelector( selectorIntent );

activity.startActivity(Intent.createChooser(emailIntent, "Send email..."));

简而言之，您需要使用 Android 标准应用选择器，此外，您还指定要发送电子邮件。因此，因此，只会出现电子邮件客户端。如果用户只安装了一个电子邮件客户端，则意图将立即重定向到它。

希望这对你也有帮助。

Answer 2

试试这个代码，它对我有用。

Intent intent = new Intent(Intent.ACTION_SENDTO);
intent.setData(Uri.parse("mailto:")); // only email apps should handle this
intent.putExtra(Intent.EXTRA_EMAIL, new String[]{email});
intent.putExtra(Intent.EXTRA_SUBJECT, "Subject here");
intent.putExtra(Intent.EXTRA_TEXT,"Body Here");
if (intent.resolveActivity(getPackageManager()) != null) {
    startActivity(intent);
}

还在android清单中添加意图过滤器。

<activity ...>
<intent-filter>
    <action android:name="android.intent.action.SENDTO" />
    <data android:scheme="mailto" />
    <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

Answer 3

为了让它在三星和 Pixel 设备上工作，我们必须在 url和extras上添加参数

val email = "xxxx@xxxx.com"
val subject = "xxxx"
val body = "xxxx"

val selectorIntent = Intent(Intent.ACTION_SENDTO)
val urlString = "mailto:" + Uri.encode(email) + "?subject=" + Uri.encode(subject) + "&body=" + Uri.encode(body)
selectorIntent.data = Uri.parse(urlString)

val emailIntent = Intent(Intent.ACTION_SEND)
emailIntent.putExtra(Intent.EXTRA_EMAIL, arrayOf(email))
emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject)
emailIntent.putExtra(Intent.EXTRA_TEXT, body)
emailIntent.selector = selectorIntent

startActivity(Intent.createChooser(emailIntent, "Send email"))

Answer 4

我们的旧电子邮件代码几天前停止工作。

内容如下：

public static void shareTextToEmail(Context context, String[] email, String subject, String text)
    Intent emailIntent = new Intent(Intent.ACTION_SENDTO, Uri.parse("mailto:" + TextUtils.join(",", email)));
    emailIntent.putExtra(Intent.EXTRA_EMAIL, email);
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
    emailIntent.putExtra(Intent.EXTRA_TEXT, text);
    try {
        context.startActivity(Intent.createChooser(emailIntent, context.getString(R.string.share_email_title)));
    } catch (android.content.ActivityNotFoundException e) {
        Toast.makeText(context, context.getString(R.string.share_no_intent_handler_found), Toast.LENGTH_SHORT).show();
    }
}

我根据Zak.Antonio 的回答采用了它：

public static void shareTextToEmail(Context context, String[] email, String subject, String text)
    Intent selectorIntent = new Intent(Intent.ACTION_SENDTO);
    selectorIntent.setData(Uri.parse("mailto:"));

    final Intent emailIntent = new Intent(Intent.ACTION_SEND);
    emailIntent.putExtra(Intent.EXTRA_EMAIL, email);
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
    emailIntent.putExtra(Intent.EXTRA_TEXT, text);
    emailIntent.setSelector(selectorIntent);

    try {
        context.startActivity(Intent.createChooser(emailIntent, context.getString(R.string.share_email_title)));
    } catch (android.content.ActivityNotFoundException e) {
        Toast.makeText(context, context.getString(R.string.share_no_intent_handler_found), Toast.LENGTH_SHORT).show();
    }
}

关键点是：

• 替换Intent.ACTION_SENDTO为Intent.ACTION_SENDinemailIntent
• 移动Intent.ACTION_SENDTO到一个selectorIntent
• 不要将电子邮件放在意图数据中，仅将它们放在附加信息中Intent.EXTRA_EMAIL