当我们点击消息，我们都表现出与收件箱。

When we click on messages we are showed with the inbox.

我想表现出同样的窗口，当我点击我的应用程序的按钮。

I want to show the same window when i clicked on my application's button.

所以，我要开始邮件收件箱中的活动。

So, I want to start message inbox activity.

如何做到这一点...？

How to achieve this...?

在此先感谢...！

推荐答案

试试这个......完美的作品..！

Try this.. works perfectly..!

public void openInbox() {
String application_name = "com.android.mms";
try {
Intent intent = new Intent("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");

intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
List<ResolveInfo> resolveinfo_list = this.getPackageManager()
.queryIntentActivities(intent, 0);

for (ResolveInfo info : resolveinfo_list) {
if (info.activityInfo.packageName
.equalsIgnoreCase(application_name)) {
launchComponent(info.activityInfo.packageName,
info.activityInfo.name);
break;
}
}
} catch (ActivityNotFoundException e) {
Toast.makeText(
this.getApplicationContext(),
"There was a problem loading the application: "
+ application_name, Toast.LENGTH_SHORT).show();
}
}

private void launchComponent(String packageName, String name) {
Intent launch_intent = new Intent("android.intent.action.MAIN");
launch_intent.addCategory("android.intent.category.LAUNCHER");
launch_intent.setComponent(new ComponentName(packageName, name));
launch_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
this.startActivity(launch_intent);
}