我正在尝试从意图中启动新活动,但是即使两种活动都扩展了AppCompatActivity,它也只能在一种情况下起作用。我不知道问题是什么。
启动器活动运行正常
<manifest>
<activity
android:name=".activities.home_page.HomePageNavActivity"
android:label="@string/title_activity_home_page_nav"
android:theme="@style/AppTheme"
android:windowSoftInputMode="adjustResize" />
<activity
android:name=".activities.UserProfileActivity"
android:parentActivityName=".activities.home_page.HomePageNavActivity"
android:windowSoftInputMode="adjustResize" />
<activity android:name=".activities.ProductDescription"
android:parentActivityName=".activities.home_page.HomePageNavActivity"
android:windowSoftInputMode="adjustResize"/>
MainActivity(HomePageNavActivity)
public class HomePageNavActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_page_nav);
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
navigation.setSelectedItemId(R.id.navigation_discover);
}
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
Fragment fragment;
switch (item.getItemId()) {
case R.id.navigation_discover:
fragment = new DiscoverFragment();
if(!Constant.currentBottomFragmentSelected.equals("discover") ) {
Constant.currentBottomFragmentSelected = "discover";
loadFragment(fragment);
}
return true;
case R.id.navigation_inbox:
Intent intent=new Intent(HomePageNavActivity.this,ProductDescription.class); //this intent is not working
HomePageNavActivity.this.startActivity(intent);
return true;
case R.id.navigation_profile:
Intent intent1 = new Intent(HomePageNavActivity.this, UserProfileActivity.class); //this intent is working
startActivity(intent1);
return true;
}
return false;
}
};
活动1(产品说明)(不起作用)
public class ProductDescription extends AppCompatActivity {
FloatingActionButton fabLove,fabShare,fabCart;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_product_description);
}
}
Activity2(UserProfileActivity)(正在运行)
public class UserProfileActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_profile);
utoolbar = (Toolbar) findViewById(R.id.toolbarProfile);
setSupportActionBar(utoolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
imgBtn = findViewById(R.id.imgBtnSettings);
imgBtnLogout = findViewById(R.id.imgBtnLogout);
//remaining code consists of onClickListeners for different buttons
}
}
答案 0 :(得分:0)
您必须删除HomePageNavActivity.this.startActivity(intent)
:
case R.id.navigation_inbox:
Intent intent = new Intent(HomePageNavActivity.this,ProductDescription.class);
startActivity(intent);
return true;