因此,我的菜单项除了单击时会显示放大的动画外,什么也不会做.我正在尝试与他们开展一项新活动,我敬酒意味是否可以做什么,但我一无所获.这是常见问题吗？

minSdkVersion 17

targetSdkVersion 27

布局

android:id="@+id/navigation"

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_marginEnd="0dp"

android:layout_marginStart="0dp"

android:background="?android:attr/windowBackground"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintLeft_toLeftOf="parent"

app:layout_constraintRight_toRightOf="parent"

app:menu="@menu/navigation" />

该布局正在使用android.support.constraint.ConstraintLayout

菜单

xmlns:tools="http://schemas.android.com/tools"

xmlns:android="http://schemas.android.com/apk/res/android">

android:id="@+id/navigation_home"

android:icon="@drawable/home"

android:title="@string/title_home" />

android:id="@+id/navigation_apps"

android:icon="@drawable/apps"

android:title="@string/title_apps" />

android:id="@+id/navigation_profile"

android:icon="@drawable/profile"

android:title="@string/title_profile" />

android:id="@+id/navigation_logout"

android:icon="@drawable/logout"

android:title="@string/title_logout" />

Java的

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.navigation, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

// Handle action bar item clicks here. The action bar will

// automatically handle clicks on the Home/Up button, so long

// as you specify a parent activity in AndroidManifest.xml.

int id = item.getItemId();

//noinspection SimplifiableIfStatement

if (id == R.id.navigation_home) {

Intent navHome = new Intent(this, WordPressActivity.class);

this.startActivity(navHome);

return true;

}

if (id == R.id.navigation_apps) {

Toast.makeText(this, "apps is Clicked", Toast.LENGTH_LONG).show();

return true;

}

if (id == R.id.navigation_profile) {

Intent navProf = new Intent(this, AccountActivity.class);

this.startActivity(navProf);

return true;

}

if (id == R.id.navigation_logout) {

Intent navLog = new Intent(this, LogoutActivity.class);

this.startActivity(navLog);

return true;

}

return super.onOptionsItemSelected(item);

}

预先感谢您对问题的任何帮助或指示.我对使用菜单项“点击意图”是陌生的,我真的不明白为什么它不起作用.