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Wednesday, 8 June 2016

MaterialDesign Splash screen with placeholder


Hello friends
If you want create beautiful splash screen with animation see this blog and enjoy.
Follow step by step instruction...

Step 1: Create a resource file in values folder by name theme.xml

theme.xml


<?xml version="1.0" encoding="utf-8"?><resources>
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        
<item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:windowBackground">@null</item>
    </style>
<style name="AppTheme.Placeholder">
    <item name="android:windowBackground">@drawable/toolbar_placeholder</item>
</style>


</resources>

Step 2: Create a drawable  file in drawable folder by name logo.xml and download any type of logo image.

toolbar_placeholder.xml


<?xml version="1.0" encoding="utf-8"?>
<layer-list
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:opacity="opaque"
    >
    <item>
        <shape>
            <solid android:color="@color/grey"/>
        </shape>
    </item>

    <item
        android:height="180dp"
        android:gravity="top">
        <shape android:shape="rectangle">
            <solid android:color="?colorPrimary"/>
        </shape>
    </item>

</layer-list>


Step 3: Go to style.xml and define the button style

style.xml


<resources>


    <style name="Button" parent="Theme.AppCompat">
        <item name="colorControlHighlight">@color/colorPrimary</item>
        <item name="colorButtonNormal">@color/teal</item>
    </style>
</resources>

color.xml


<?xml version="1.0" encoding="utf-8"?><resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>
    <color name="teal">#009687</color>

</resources>

actvity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    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"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/grey"
        android:orientation="vertical"
        tools:context=".OnboardingWithPlaceholderActivity"
        >

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="156dp"
            android:background="?colorPrimary"
            android:elevation="4dp"
            app:theme="@style/ThemeOverlay.AppCompat.Light"
            >

            <TextView
                android:id="@+id/text_title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:alpha="0"
                android:text="Cold starts are evil!"
                android:textAppearance="@style/TextAppearance.AppCompat.Widget.ActionBar.Title.Inverse"
                />
        </android.support.v7.widget.Toolbar>


        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clipToPadding="false"
            android:paddingTop="8dp"
            />

    </LinearLayout>

  

</FrameLayout>



MainActvity.java


package com.example.saulmm.splashes;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ValueAnimator;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.support.v4.view.ViewCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.saulmm.splashes.itemanimator.ItemAnimatorFactory;

import java.util.ArrayList;
import java.util.List;

public class OnboardingWithPlaceholderActivity extends AppCompatActivity {
    private int mContentViewHeight;
    private Toolbar mToolbar;
    private RecyclerAdapter mAdapter;
    private View mFab;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Fake a long startup time
       
new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                onFakeCreate();
            }

        }, 500);
    }

    private void onFakeCreate() {
        setTheme(R.style.AppTheme);
        setContentView(R.layout.activity_onboarding_placeholder);

        TextView titleTextView = (TextView) findViewById(R.id.text_title);
        ViewCompat.animate(titleTextView).alpha(1).start();

        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler);
        mFab = findViewById(R.id.fab);

        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.setItemAnimator(ItemAnimatorFactory.slidein());

        mAdapter = new RecyclerAdapter();
        recyclerView.setAdapter(mAdapter);

        mToolbar = (Toolbar) findViewById(R.id.toolbar);
        mToolbar.getViewTreeObserver().addOnPreDrawListener(
            new ViewTreeObserver.OnPreDrawListener() {
                @Override
                public boolean onPreDraw() {
                    mToolbar.getViewTreeObserver().removeOnPreDrawListener(this);
                    final int widthSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
                    final int heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);

                    mToolbar.measure(widthSpec, heightSpec);
                    mContentViewHeight = mToolbar.getHeight();
                    collapseToolbar();
                    return true;
                }
            });
    }


    private void collapseToolbar() {
        int toolBarHeight;
        TypedValue tv = new TypedValue();
        getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true);
        toolBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics());
        ValueAnimator valueHeightAnimator = ValueAnimator.ofInt(mContentViewHeight, toolBarHeight);
        valueHeightAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                ViewGroup.LayoutParams lp = mToolbar.getLayoutParams();
                lp.height = (Integer) animation.getAnimatedValue();
                mToolbar.setLayoutParams(lp);
            }
        });

        valueHeightAnimator.start();
        valueHeightAnimator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);

                // Fire item animator
               
mAdapter.addAll(ModelItem.getFakeItems());

                // Animate fab
               
ViewCompat.animate(mFab).setStartDelay(600)
                    .setDuration(400).scaleY(1).scaleX(1).start();

            }
        });
    }

    class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.RecyclerViewHolder> {
        private ArrayList<ModelItem> mItems = new ArrayList<>();

        @Override
        public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_card, parent, false);
            return new RecyclerViewHolder(v);
        }

        public void addAll(List<ModelItem> items) {
            int pos = getItemCount();
            mItems.addAll(items);
            notifyItemRangeInserted(pos, mItems.size());
        }

        @Override
        public void onBindViewHolder(RecyclerViewHolder holder, int position) {
            holder.bind(position);
        }

        @Override
        public int getItemCount()    {
            return mItems.size();
        }


        class RecyclerViewHolder extends RecyclerView.ViewHolder {
            private TextView mTitleTextView;
            private ImageView mImageView;

            public RecyclerViewHolder(View itemView) {
                super(itemView);
                mTitleTextView = (TextView) itemView.findViewById(R.id.text_title);
                mImageView = (ImageView) itemView.findViewById(R.id.img_sampleimage);
            }

            public void bind(int position) {
                mImageView.setImageBitmap(BitmapFactory.decodeResource(
                    getResources(), mItems.get(position).getImgId()));
                mTitleTextView.setText(mItems.get(position).getAuthor());
            }
        }

    }

}


AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.samset.splashscreen">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"  
android:theme="@style/AppTheme.Placeholder">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Thank you

FullSourceCodeSplashScreen


Live Sample