So in a layout I have three buttons, for control flow I am using a switch to determine what behavior occurs when each button is clicked.
My problem is, I want a fade transition to take over the default transition when each button is clicked to go to the next activity.
I think I have the code down, but when I run the emulator I don't see the transition change? I am new to Android and I do not know what I'm doing wrong, I attached my Java code and XML for the button layout and well as my in/out transition XML. Thank you!!
package com.example.jonathan.om11;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
/**
* Created by Jonathan on 12/28/17.
*/
public class Tab1 extends Fragment implements View.OnClickListener {
Button toEnv1Page;
Button toEnv2Page;
Button toEnv3Page;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.tab1, container, false);
toEnv1Page = (Button) rootView.findViewById(R.id.envBtn1);
toEnv1Page.setOnClickListener(this);
toEnv2Page = (Button) rootView.findViewById(R.id.envBtn2);
toEnv2Page.setOnClickListener(this);
toEnv3Page = (Button) rootView.findViewById(R.id.envBtn3);
toEnv3Page.setOnClickListener(this);
return rootView;
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.envBtn1:
Intent i = new Intent("android.intent.action.Env1Page");
startActivity(i);
android.support.v4.app.FragmentTransaction fAnimation = this.getActivity().getSupportFragmentManager().beginTransaction();
fAnimation.setCustomAnimations(android.R.anim.fade_in, R.anim.fade_out);
fAnimation.commit();
break;
case R.id.envBtn2:
Intent ii = new Intent("android.intent.action.Env2Page");
startActivity(ii);
android.support.v4.app.FragmentTransaction f2Animation = this.getActivity().getSupportFragmentManager().beginTransaction();
f2Animation.setCustomAnimations(android.R.anim.fade_in, R.anim.fade_out);
f2Animation.commit();
break;
case R.id.envBtn3:
Intent iii = new Intent("android.intent.action.Env3Page");
startActivity(iii);
android.support.v4.app.FragmentTransaction f3Animation = this.getActivity().getSupportFragmentManager().beginTransaction();
f3Animation.setCustomAnimations(android.R.anim.fade_in, R.anim.fade_out);
f3Animation.commit();
break;
default:
break;
}
}
}
LAYOUT XML:
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/tabsLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.jonathan.om11.MainTabbedActivity$PlaceholderFragment">
<LinearLayout
android:layout_width="0dp"
android:layout_height="0dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="#+id/envBtn1"
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/cardview_light_background"
android:text="Rainforest"
android:textSize="40sp" />
<Button
android:id="#+id/envBtn2"
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/cardview_light_background"
android:text="Desert"
android:textSize="40sp" />
<Button
android:id="#+id/envBtn3"
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#color/cardview_light_background"
android:text="Fireplace"
android:textSize="40sp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
FADE IN ANIMATION XML:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="500"
android:interpolator="#android:anim/accelerate_interpolator"
android:fromAlpha="0.0"
android:toAlpha="1.0">
</set>
FADE OUT ANIMATION XML:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="#android:anim/accelerate_interpolator"
android:fromAlpha="1.0"
android:toAlpha="0.0"
android:fillAfter="true"
android:duration="500"
>
</set>
You just have to setCustomAnimations() before beginTransaction() of fragments. Like,
YourFragment fragment = new YourFragment();
fragment.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
android.support.v4.app.FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.your_layout_element_which_is_to_be_replace_by_fragment_layout, fragment);
transaction.commit();
Edit -- And if you also want to perform transition while navigating back from fragment then you just need to set propEnter and propExit transitions. For example,
fragment.setCustomAnimations(enterTransition, exitTransition, propEnterTransition, propExitTransition);
Related
Im wondering why my bottom navigation bar is not showing up. Can anyone help me out please. Im still learning Android so i apologise in advance if i seem to be asking the wrong questions!
This is my home.xml file
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/home"
android:title="Home"
android:icon="#drawable/ic_action_home"
/>
<item
android:id="#+id/Login"
android:title="Login"
android:icon="#drawable/ic_action_login"
/>
<item
android:id="#+id/About"
android:title="About"
android:icon="#drawable/ic_action_about"
/>
</menu>
This is my fragment_home.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".HomeFragment">
<!-- TODO: Update blank fragment layout -->
<ListView
android:id="#+id/listViewDetails"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
This is HomeFragment.java file
package sg.edu.rp.c346.a3pdwork;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
/**
* A simple {#link Fragment} subclass.
*/
public class HomeFragment extends Fragment {
public HomeFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_home, container, false);
String[] menuItems = {"Do Something!", "Do something else!", "Do yet another thing!"};
ListView listView = (ListView) view.findViewById(R.id.listViewDetails);
ArrayAdapter<String> listViewAdapter = new ArrayAdapter<String>(
getActivity(),
android.R.layout.simple_list_item_1,
menuItems
);
listView.setAdapter(listViewAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (position == 0) {
Toast.makeText(getActivity(),"Hi! You CLikced the first item", Toast.LENGTH_LONG).show();
}else if (position == 1) {
Toast.makeText(getActivity(),"Hi! You CLikced the Second item", Toast.LENGTH_LONG).show();
}else if (position == 2) {
Toast.makeText(getActivity(),"Hi! You CLikced the Third item", Toast.LENGTH_LONG).show();
}
}
});
// Inflate the layout for this fragment
return view;
}
}
This is my AndroidManifest.xml file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="sg.edu.rp.c346.a3pdwork">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
This is LoginFragment.java
package sg.edu.rp.c346.a3pdwork;
import android.graphics.Color;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
/**
* A simple {#link Fragment} subclass.
*/
public class LoginFragment extends Fragment {
Button b1, b2;
EditText ed1, ed2;
TextView tx1;
int counter = 3;
public LoginFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_login, container, false);
b1 = findViewByID(R.id.button);
ed1 = findViewByID(R.id.editText);
ed2 = findViewByID(R.id.editText2);
b2 = (Button)findViewById(R.id.button2);
tx1 = (TextView)findViewById(R.id.textView3);
tx1.setVisibility(View.GONE);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (ed1.getText().toString().equals("admin") &&
ed2.getText().toString().equals("admin")) {
Toast.makeText(getApplicationContext(),
"Redirecting...", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), "Wrong Credentials", Toast.LENGTH_SHORT).show();
tx1.setVisibility(View.VISIBLE);
tx1.setBackgroundColor(Color.RED);
counter--;
tx1.setText(Integer.toString(counter));
if (counter == 0) {
b1.setEnabled(false);
}
}
}
});
b2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
finish();
}
});
}
}
This is my fragment_about.xml file
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".AboutFragment">
<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/hello_blank_fragment" />
</FrameLayout>
This is my fragment_login.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".LoginFragment">
<!-- TODO: Update blank fragment layout -->
<TextView android:text = "Tutor Seeker"
android:layout_width="wrap_content"
android:layout_height = "wrap_content"
android:id = "#+id/textview"
android:textSize = "35dp"
android:layout_alignParentTop = "true"
android:layout_centerHorizontal = "true" />
<EditText
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:id = "#+id/editText"
android:hint = "Enter Name"
android:focusable = "true"
android:textColorHighlight = "#ff7eff15"
android:textColorHint = "#ffff25e6"
android:layout_marginTop = "46dp"
android:layout_alignParentLeft = "true"
android:layout_alignParentStart = "true"
android:layout_alignParentRight = "true"
android:layout_alignParentEnd = "true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:ems="10"
android:id="#+id/editText2"
android:layout_below="#+id/editText"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignRight="#+id/editText"
android:layout_alignEnd="#+id/editText"
android:textColorHint="#ffff299f"
android:hint="Enter Password" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Attempts Left:"
android:id="#+id/textView2"
android:layout_below="#+id/editText2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:textSize="25dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/textView3"
android:layout_alignTop="#+id/textView2"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignBottom="#+id/textView2"
android:layout_toEndOf="#+id/textview"
android:textSize="25dp"
android:layout_toRightOf="#+id/textview" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="login"
android:id="#+id/button"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="#+id/textview"
android:layout_toStartOf="#+id/textview" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel"
android:id="#+id/button2"
android:layout_alignParentBottom="true"
android:layout_toRightOf="#+id/textview"
android:layout_toEndOf="#+id/textview" />
</RelativeLayout>
This is my AboutFragment.java file
package sg.edu.rp.c346.a3pdwork;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {#link Fragment} subclass.
*/
public class AboutFragment extends Fragment {
public AboutFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_about, container, false);
}
}
This is MainActivity.java file
package sg.edu.rp.c346.a3pdwork;
import androidx.appcompat.app.AppCompatActivity;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.NavigationUI;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.material.bottomnavigation.BottomNavigationView;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
This is my activity_main.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<fragment
android:name="androidx.navigation.fragment.NavHostFragment"
android:id="#+id/nav_host_fragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="#navigation/nav_graph" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_nav"
app:menu="#menu/home"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
Try to use RelativeLayout instead of LinearLayout like below:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<fragment
android:name="androidx.navigation.fragment.NavHostFragment"
... />
<com.google.android.material.bottomnavigation.BottomNavigationView
...
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</RelativeLayout>
The fragment in your activity_main has android:layout_height="match_parent" and LinearLayout has vertical orientation. This means that your fragment takes all the place on the screen and your bottom navigation menu placed below your fragment. Also, you shouldn't set navigation menu height as match_parent. I suggest you to try to use ConstraintLayout as layout root.
NOTE! I use AndroidX, but it also works for AppCompat.
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="#dimen/bottom_menu_height"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/navigation" />
<fragment
android:id="#+id/fragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/bottomNavigationView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Here is my MainActivity.java class
package com.example.bottomnavigationdrawer;
import androidx.appcompat.app.AppCompatActivity;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.NavigationUI;
import androidx.viewpager.widget.ViewPager;
import android.os.Bundle;
import com.google.android.material.bottomnavigation.BottomNavigationView;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BottomNavigationView bottomNavigationView=findViewById(R.id.bottomNavigationView);
NavController navController= Navigation.findNavController(this,R.id.nav_host_fragment);
NavigationUI.setupWithNavController(bottomNavigationView,navController);
}
}
Here is my activity_main.xml :
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigationView"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:itemTextColor="#00FAF7F7"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_nav_menu" />
<fragment
android:id="#+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="#+id/bottomNavigationView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/nav_graph" />
</androidx.constraintlayout.widget.ConstraintLayout>
Here is my HomeFragment.java class:
package com.example.bottomnavigationdrawer;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.smarteist.autoimageslider.SliderView;
/**
* A simple {#link Fragment} subclass.
*/
public class HomeFragment extends Fragment {
public HomeFragment() {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_home, container, false);
SliderView imageView = (SliderView) view.findViewById(R.id.imageSlider);
return view;
}}
Here is my fragment_home.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingBottom="3dp"
android:paddingLeft="3dp"
android:paddingRight="3dp"
android:paddingTop="3dp"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".HomeFragment">
<!-- TODO: Update blank fragment layout -->
<TextView
android:gravity="center"
android:textSize="70sp"
android:textColor="#FAF8F8"
android:background="#25212E"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Home" />
</RelativeLayout>
I am new in Android, and I have searched a lot about it. But every tutorial I get they do this with main activity, model,adapter. But I have to do it on my home fragment in main activity.
Actually I don't understand your question. If you want to learn about recyclerview and card view and bottom navigation view, follow this tutorial:
https://www.androidhive.info/2016/01/android-working-with-recycler-view/
https://www.androidhive.info/2017/12/android-working-with-bottom-navigation/
It's very easy. If you want to set scroll horizontal use LinearLayoutManager like this
LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
RecyclerView myRecyclerView= (RecyclerView) findViewById(R.id.my_recycler_view);
myRecyclerView.setLayoutManager(layoutManager);
I am new to android and currently learning right now.
I faced a problem related to android-fragments, I write code and it did nothing! Just show the fragment color.
when I tried to remove the color of the fragment, it worked! I am unable to rectify this problem. Please help!
XML -activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/button"
android:layout_width="113dp"
android:layout_height="50dp"
android:text="Switch1"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.945" />
<fragment
android:id="#+id/fragment"
android:name="com.example.fragments.Color_Purple"
android:layout_width="390dp"
android:layout_height="385dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="#+id/button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.68"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.137" />
</androidx.constraintlayout.widget.ConstraintLayout>
XML - Fragment code
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Color_Purple">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#C403FA" />
</FrameLayout>
JAVA-mainActivity.java
package com.example.fragments;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Button b1;
Fragment f1;
Boolean flag=true;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.button);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
f1=new Color_Purple();
// Toast.makeText(getApplicationContext(),"Button pressed",Toast.LENGTH_SHORT).show();
FragmentManager fm=getSupportFragmentManager();
FragmentTransaction ft=fm.beginTransaction();
if(flag)
{
findViewById(R.id.fragment).setBackgroundColor(Color.GREEN);
// Toast.makeText(getApplicationContext(),"Button pressed Color GREEN",Toast.LENGTH_SHORT).show();
flag=false;
}
else
{
findViewById(R.id.fragment).setBackgroundColor(Color.RED);
//Toast.makeText(getApplicationContext(),"Button pressed Color RED",Toast.LENGTH_SHORT).show();
flag=true;
}
}
});
}
}
Java - fragment java code
package com.example.fragments;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class Color_Purple extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_color__purple, container, false);
}
}
Note:
If i remove android:background from xml - fragment, this code works but not with color.
just change :
Boolean flag = true;
to
boolean flag = true;
and remove android:background="#C403FA" from your TextView :
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#C403FA" //remove this line
/>
When i try to impliment collapsingbar in fragment it's not collapsing, but when i try the same code in a simple activity it works fine, and i want the same design in a fragment(ProfileFragment), there is no error occurs it just simply displayed but its not collapsing, and i want to make it working fine please help me, look on my code i want to impliment.
This is my XML
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true"
tools:context="com.turbo.ashish.hexon.BottomNavFragment.ProfileFragment">
<!-- TODO: Update blank fragment layout -->
<android.support.design.widget.AppBarLayout
android:id="#+id/idProfileWallappbar"
android:layout_width="match_parent"
android:layout_height="238dp">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/idcollapsbarlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorAccent"
app:expandedTitleMarginBottom="20dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="20dp"
app:layout_scrollFlags="exitUntilCollapsed|scroll"
app:title="#string/title_profile">
<ImageView
android:id="#+id/idImageViewCollapsingToolbarLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<android.support.v7.widget.Toolbar
android:id="#+id/idtoolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/custColtransparante"
app:layout_collapseMode="pin">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<Button
android:id="#+id/idFragBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="304dp"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
My Fragment Java File..
package com.turbo.ashish.hexon.BottomNavFragment;
import android.net.Uri;
import android.os.Bundle;
import android.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.turbo.ashish.hexon.R;
import static android.widget.Toast.LENGTH_LONG;
public class ProfileFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
Log.d("Working","Wasd");
View fragView = inflater.inflate(R.layout.fragment_profile,container,false);
fragView.findViewById(R.id.idFragBtn).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(),"asd",Toast.LENGTH_LONG).show();
}
});
return fragView;
}
}
But Collapsing bar layout always stay constant in Fragment, i want to make this collapsingbar working on fragment (ProfileFragment)..
My Platform activity where i load fragments like:
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
#SuppressLint("ResourceType")
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
android.app.FragmentTransaction ft = getFragmentManager().beginTransaction();
switch (item.getItemId()){
case R.id.idNavContacts:
toolbar.setTitle("Contacts");
ft.replace(R.id.idFrameContainer, new ContactsFragment(), "Contacts Ftagment").commit();
return true;
case R.id.idNavPerson:
toolbar.setTitle("Profile");
ft.replace(R.id.idFrameContainer,new ProfileFragment(), "Profile Fragment").commit();
return true;
case R.id.idNavGroups:
toolbar.setTitle("Groups");
ft.replace(R.id.idFrameContainer,new GroupsFragment(), "Groups Fragment").commit();
return true;
case R.id.idNavFeeds:
toolbar.setTitle("Feeds");
ft.replace(R.id.idFrameContainer, new FeedskFragment(), "Feeds Fragment").commit();
return true;
}
return false;
}
};
There is no problem in loading fragment but the Collapsing bar not responds (No sliding), i want to happen in fragment.
Activity XML
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.turbo.ashish.hexon.Platform">
<FrameLayout
android:id="#+id/idFrameContainer"
android:layout_width="match_parent"
android:layout_height="454dp">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/idBottomNav"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:itemBackground="#color/WHITE"
android:foreground="?attr/selectableItemBackground"
app:itemIconTint="#color/deepViolate"
app:itemTextColor="#color/deepViolate"
app:menu="#menu/navigation">
</android.support.design.widget.BottomNavigationView>
</android.support.design.widget.CoordinatorLayout>
Why my Collapsing Toolbar Layout not working ?
You expect your collapsing toolbar to work in Constraint Layout ?
Firstly, to make the collapsing toolbar work make
android.support.design.widget.CoordinatorLayout
as your root layout.
make changes in xml file used below code instand of android.support.constraint.ConstraintLayout into room xml tag ..
<android.support.design.widget.CoordinatorLayout>
I'm trying to learn how to implement fragments in android.
So, I created two buttons and a fragment in the activity_main.xml.
If I click on the first button, fragment_one should be inflated,
similarly if I click the second button, fragment_two should be inflated.
But the issue is it doesn't replace the fragment.
When I debug the code, performClick() method in the View.class returns false.
Also there is no error in LogCat.
I'm unable to figure out what is the issue with the code.
Here's the activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/fragment1" />
<Button
android:id="#+id/button2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/fragment2" />
<fragment
android:id="#+id/fragment_place"
android:name="com.example.myfragmentwithbuttonapp.FragmentTwo"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Here's the fragment_one.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#00ffff">
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="#string/thisisfragment1"
android:textStyle="bold" />
</LinearLayout>
Here's the fragment_two.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ffff00">
<TextView
android:id="#+id/textView2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/thisisfragment2"
android:textStyle="bold" />
</LinearLayout>
Here's the FragmentOne.java
package com.example.myfragmentwithbuttonapp;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentOne extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
//Inflate the layout for this fragment
return inflater.inflate(
R.layout.fragment_one, container, false);
}
}
Here's the FragmentTwo.java
package com.example.myfragmentwithbuttonapp;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentTwo extends Fragment{
#Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(
R.layout.fragment_two, container, false);
}
}
Here's the MainActivity.java
package com.example.myfragmentwithbuttonapp;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
Fragment fr;
FragmentManager fm;
FragmentTransaction fragmentTransaction;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button1 = (Button) findViewById(R.id.button1);
Button button2 = (Button) findViewById(R.id.button2);
button1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
fr = new FragmentOne();
fm = getFragmentManager();
fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.fragment_place, fr);
fragmentTransaction.commit();
}
});
button2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
fr = new FragmentTwo();
fm = getFragmentManager();
fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.fragment_place, fr);
fragmentTransaction.commit();
}
});
}
}
I hope I have been able to explain the problem.
Any help is appreciated.
Thanks
For fragmentTransaction.replace() you need to specify a container for your fragment and the fragment itself. The container is the parent view which is going to hold your fragment. Tipically a FrameLayout.
Right now you are passing R.id.fragment_place as the container, but that id refers to a fragment and not to a fragment container.
In activity_main.xml, replace:
<fragment
android:id="#+id/fragment_place"
android:name="com.example.myfragmentwithbuttonapp.FragmentTwo"
android:layout_width="match_parent"
android:layout_height="match_parent" />
with:
<FrameLayout
android:id="#+id/fragment_place"
android:layout_width="match_parent"
android:layout_height="match_parent" />
It works fine like this. The rest of your code is OK.