使用 EXTRA_STREAM 发送电子邮件 Intent 会因 GMail 崩溃

Question

我正在尝试从我的应用程序发送一封带有附件的电子邮件。当选择器弹出时，如果我点击 GMail，GMail 就会崩溃；如果我点击设备的默认电子邮件客户端，它就会完美运行。附件是从外部 SD 中获取的 jpeg。
这里是代码：

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filelocation = gv.getPath();\n                    Intent emailIntent = new Intent(Intent.ACTION_SEND);\n                    // set the type to \'email\'\n                    emailIntent.setType("image/jpeg");\n                    String to[] = {"myemailaddress@gmail.com"};\n                    emailIntent.putExtra(Intent.EXTRA_EMAIL, to);\n                    // the attachment\n                    emailIntent.putExtra(Intent.EXTRA_STREAM, filelocation);\n                    // the mail subject\n                    emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Subject");\n                    emailIntent.putExtra(Intent.EXTRA_TEXT, "Body");\n                    emailIntent.setType("message/rfc822");\n                    startActivity(Intent.createChooser(emailIntent, "Send email using:"));\n

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这里是日志猫：

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03-14 19:03:26.081  27428-27428/com.android.myapp W/Bundle\xef\xb9\x95 Key android.intent.extra.STREAM expected Parcelable but value was a java.lang.String.  The default value <null> was returned.\n03-14 19:03:26.111  27428-27428/com.android.myapp W/Bundle\xef\xb9\x95 Attempt to cast generated internal exception:\n    java.lang.ClassCastException: java.lang.String cannot be cast to android.os.Parcelable\n            at android.os.Bundle.getParcelable(Bundle.java:1171)\n            at android.content.Intent.getParcelableExtra(Intent.java:4493)\n            at android.content.Intent.migrateExtraStreamToClipData(Intent.java:7032)\n            at android.content.Intent.migrateExtraStreamToClipData(Intent.java:7017)\n            at android.app.Instrumentation.execStartActivity(Instrumentation.java:1548)\n            at android.app.Activity.startActivityForResult(Activity.java:3409)\n            at android.app.Activity.startActivityForResult(Activity.java:3370)\n            at android.support.v4.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:826)\n            at android.support.v4.app.Fragment.startActivity(Fragment.java:896)\n            at com.android.myapp.steps.Passo3$2.onClick(Passo3.java:100)\n            at android.view.View.performClick(View.java:4107)\n            at android.view.View$PerformClick.run(View.java:17160)\n            at android.os.Handler.handleCallback(Handler.java:615)\n            at android.os.Handler.dispatchMessage(Handler.java:92)\n            at android.os.Looper.loop(Looper.java:155)\n            at android.app.ActivityThread.main(ActivityThread.java:5536)\n            at java.lang.reflect.Method.invokeNative(Native Method)\n            at java.lang.reflect.Method.invoke(Method.java:511)\n            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1074)\n            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:841)\n            at dalvik.system.NativeStart.main(Native Method)\n

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有什么建议吗？我们将非常感谢您的每一次帮助！:)

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Answer 1

这行：

emailIntent.putExtra(Intent.EXTRA_STREAM, filelocation);

需要 URI 才能工作。改成：

emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(filelocation));