0

我正在尝试使用 ComposeActivityGmail 发送电子邮件。我尝试了 3 种方法。第一个是最简单的Intent.setClassName：

sendIntent.setComponent( new ComponentName( "com.google.android.gm", "ComposeActivityGmail" ) );

有了这个我有以下例外：

java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.VIEW dat=myemail@gmail.com cmp=com.google.android.gm/.ComposeActivityGmail (has extras) } from ProcessRecord{30a898b6 10871:org.madebyalex.myperiod/u0a255} (pid=10871, uid=10255) not exported from uid 10067
   at android.os.Parcel.readException(Parcel.java:1546)
   at android.os.Parcel.readException(Parcel.java:1499)
   at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:2468)
   at android.app.Instrumentation.execStartActivity(Instrumentation.java:1563)
   at android.app.Activity.startActivityForResult(Activity.java:3755)
   at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48)
   at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:77)
   at android.app.Activity.startActivityForResult(Activity.java:3716)
   at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
   at android.app.Activity.startActivity(Activity.java:4036)
   at android.app.Activity.startActivity(Activity.java:3998)
   at org.madebyalex.myperiod.EmailMessage.sendMessage(EmailMessage.java:93)
   at org.madebyalex.myperiod.SecurityFragment$2.onClick(SecurityFragment.java:159)
   at android.view.View.performClick(View.java:4785)
   at android.view.View$PerformClick.run(View.java:19884)
   at android.os.Handler.handleCallback(Handler.java:739)
   at android.os.Handler.dispatchMessage(Handler.java:95)
   at android.os.Looper.loop(Looper.java:135)
   at android.app.ActivityThread.main(ActivityThread.java:5343)
   at java.lang.reflect.Method.invoke(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)

第二种方法是基于使用 PackageManager的这个问题：

Intent sendIntent = new Intent( Intent.ACTION_VIEW );
    sendIntent.setType( "plain/text" );
    sendIntent.setData( Uri.parse( receivers.get( 0 ) ) );

    final PackageManager packageManager = context.getPackageManager();
    final List<ResolveInfo> matches = packageManager.queryIntentActivities( sendIntent, 0 );
    String className = "";

    for( ResolveInfo info : matches ){
        if( info.activityInfo.packageName.equals( "com.google.android.gm" ) ){
            className = info.activityInfo.name;
            if( className != null && !className.isEmpty() ){
                break;
            }
        }
    }

    sendIntent.setClassName( "com.google.android.gm", className );
    Log.e("ERROR", "CLASS NAME: "+className);

    sendIntent.putExtra( Intent.EXTRA_SUBJECT, getSubject() );
    sendIntent.putExtra( Intent.EXTRA_TEXT, message+"\n" );
    context.startActivity( sendIntent );

使用这种方法会引发以下异常：

android.content.ActivityNotFoundException: Unable to find explicit activity class {com.google.android.gm/ComposeActivityGmail}; have you declared this activity in your AndroidManifest.xml?
   at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1868)
   at android.app.Instrumentation.execStartActivity(Instrumentation.java:1568)
   at android.app.Activity.startActivityForResult(Activity.java:3755)
   at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48)
   at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:77)
   at android.app.Activity.startActivityForResult(Activity.java:3716)
   at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
   at android.app.Activity.startActivity(Activity.java:4036)
   at android.app.Activity.startActivity(Activity.java:3998)
   at org.madebyalex.myperiod.EmailMessage.sendMessage(EmailMessage.java:93)
   at org.madebyalex.myperiod.SecurityFragment$2.onClick(SecurityFragment.java:159)
   at android.view.View.performClick(View.java:4785)
   at android.view.View$PerformClick.run(View.java:19884)
   at android.os.Handler.handleCallback(Handler.java:739)
   at android.os.Handler.dispatchMessage(Handler.java:95)
   at android.os.Looper.loop(Looper.java:135)
   at android.app.ActivityThread.main(ActivityThread.java:5343)
   at java.lang.reflect.Method.invoke(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:372)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)

并使用此代码引发了与上述完全相同的异常：

sendIntent.setComponent( new ComponentName( "com.google.android.gm", "ComposeActivityGmail" ) );

SO上的一些答案说要在Android清单上声明此活动。这样做 AndroidStudio 会抱怨“android.gm/ComposeActivityGmail”部分：

<activity
    android:name="com.google.android.gm/ComposeActivityGmail"
    android:screenOrientation="locked"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.VIEW"/>
    </intent-filter>
</activity>

在 AndroidManifest.xml AndroidStudio 中插入这个简单的代码会抱怨：未解析的类。

<activity android:name=".ComposeActivityGmail"/>

如果所有这些解决方案都失败了，如何解决这个问题？

4

3 回答 3

0

尝试这个。这个对我有用。

Intent emailIntent = new Intent(Intent.ACTION_SEND);
        emailIntent.setType("text/html");
        emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[] { Constants.CONTACT_EMAIL_ADDRESS });
        final PackageManager pm = this.getPackageManager();
        final List<ResolveInfo> matches = pm.queryIntentActivities(emailIntent, 0);
        String className = null;
        for (final ResolveInfo info : matches) {
            if (info.activityInfo.packageName.equals("com.google.android.gm")) {
                className = info.activityInfo.name;

                if(className != null && !className.isEmpty()){
                    break;
                }
            }
        }

        emailIntent.setClassName("com.google.android.gm", className);

        try {
            startActivity(emailIntent);
        } catch(ActivityNotFoundException ex) {
            // handle error
        }
于 2016-11-28T11:12:55.700 回答
0

gmail 新更新后，google 更改了撰写活动名称。因此，请使用下面的代码来解决您的问题，而不是给出静态值。

Intent emailIntent = new Intent(Intent.ACTION_SEND);
        emailIntent.setType("text/html");
        final PackageManager pm = this.getPackageManager();
        final List<ResolveInfo> matches = pm.queryIntentActivities(emailIntent, 0);
        String className = null;
        for (final ResolveInfo info : matches) {
            if (info.activityInfo.packageName.equals("com.google.android.gm")) {
                className = info.activityInfo.name;

                if(className != null && !className.isEmpty()){
                    break;
                }
            }
        }
        emailIntent.setClassName("com.google.android.gm", className);
于 2016-12-01T16:46:28.423 回答
0

android.content.ActivityNotFoundException：找不到明确的活动类 {com.google.android.gm/ComposeActivityGmail}；您是否在 AndroidManifest.xml 中声明了此活动？

在清单中声明您的活动并添加互联网权限，就像这样

<manifest xlmns:android...>
 ...
 <uses-permission android:name="android.permission.INTERNET" />
 <application ...

<activity android:name=".ComposeActivityGmail"/>

</manifest>
于 2016-11-25T08:15:20.290 回答