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androidandroiddesignsupportandroid-tablayout

Tab icon and text both using android design support library


on startup the tab are looking like thisthis is my project on startup..all the tabs are black but i want the first one to be orange(its icon and text)[![this is the second tab when i move to this working fine[![when i get back to the first tab it is working what i want to be..the main isssue is when the app starts]1]1i used android design support tablayout and i got both icon and text on tab .. i used a customtabview to align icon and text vertically..And i want to change the color of the icon and text when selected/unselected.

i made selector file for different tab icon..but the thing is when i run the project the first default tab is unselected i want them to get selected by default..and if i go to other tab and then swipe back to the first tab it works perfectly fine..the main problem is i cant make the first tab fragment selected..please help me as i m stuck for past 2 days..and i dont want to use any library from github

MainActivity.java

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.widget.TextView;

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



public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;
    private TabLayout tabLayout;
    private ViewPager viewPager;
    private int[] tabIcons = {
            R.drawable.image1,
            R.drawable.image2,
            R.drawable.image3
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);
        setupTabIcons();
    }

    private void setupTabIcons() {

        TextView tabOne = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
        tabOne.setText("ONE");
        tabOne.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.image1, 0, 0);
        tabLayout.getTabAt(0).setCustomView(tabOne);

        TextView tabTwo = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
        tabTwo.setText("TWO");
        tabTwo.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.image2, 0, 0);
        tabLayout.getTabAt(1).setCustomView(tabTwo);

        TextView tabThree = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
        tabThree.setText("THREE");
        tabThree.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.image3, 0, 0);
        tabLayout.getTabAt(2).setCustomView(tabThree);
    }

    private void setupViewPager(ViewPager viewPager) {
        ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFrag(new OneFragment(), "ONE");
        adapter.addFrag(new TwoFragment(), "TWO");
        adapter.addFrag(new ThreeFragment(), "THREE");
        viewPager.setAdapter(adapter);
    }

    class ViewPagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragmentList = new ArrayList<>();
        private final List<String> mFragmentTitleList = new ArrayList<>();

        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }

        @Override
        public Fragment getItem(int position) {
            return mFragmentList.get(position);
        }

        @Override
        public int getCount() {
            return mFragmentList.size();
        }

        public void addFrag(Fragment fragment, String title) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
}

image1.xml

 <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
        <item android:drawable="@drawable/x1" android:state_selected="true" />
        <item android:drawable="@drawable/x2" />
    </selector>

crested three file like above for three different image.

custom_tab.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/tab"
    android:textColor="@color/selector"
    android:textSize="@dimen/tab_label"
    android:fontFamily="@string/font_fontFamily_medium"/>

selector.xml for text

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true"
        android:color="#fe5d55" /> <!-- pressed -->
    <item android:state_pressed="true"
        android:color="#fe5d55" /> <!-- focused -->
    <item android:color="#000000" /> <!-- default -->
</selector>

Can anyone help ?


Solution

  • What do you mean by unselected. Can you share an image of what you are trying to achieve and where you are at now..

    I wouldn't recommend your approach. It does a lot of things which are not needed to solve your problem. I suggest making use of the icon and text from the TabLayout class and just set your icons(drawables with states) and text. Or, even a custom layout if required, but making use of the text1 and icon from the TabLayout. Do you have any issues doing this?


    Update..

    Try the below:

    IconTextTabLayout.java:

    package example.customtabs;
    
    import android.content.Context;
    import android.support.annotation.NonNull;
    import android.support.design.widget.TabLayout;
    import android.support.v4.view.PagerAdapter;
    import android.util.AttributeSet;
    
    import sample.customtabs.example.com.customtabs.R;
    
    
    public class IconTextTabLayout extends TabLayout {
    
    
        public IconTextTabLayout(Context context) {
            super(context);
        }
    
        public IconTextTabLayout(Context context, AttributeSet attrs) {
            super(context, attrs);
        }
    
        public IconTextTabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
            super(context, attrs, defStyleAttr);
        }
    
        @Override
        public void setTabsFromPagerAdapter(@NonNull PagerAdapter adapter) {
            this.removeAllTabs();
            int i = 0;
            for (int count = adapter.getCount(); i < count; ++i) {
                this.addTab(this.newTab().setCustomView(R.layout.custom_tab)
                        .setIcon(YourIcons[i])
                        .setText(adapter.getPageTitle(i)));
            }
        }
    }
    

    custom_tab.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">
    
    
        <ImageView
            android:id="@android:id/icon"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
    
        <TextView
            android:id="@android:id/text1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
    
    </LinearLayout>
    

    In Your activity xml use IconTextTabLayout. Like :

    <?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"
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:orientation="vertical">
    
        <example.customtabs.IconTextTabLayout
            android:id="@+id/sliding_tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabMode="scrollable"/>
    
        <android.support.v4.view.ViewPager
            android:id="@+id/viewpager"
            android:layout_width="match_parent"
            android:layout_height="0px"
            android:layout_weight="1"
            android:background="@android:color/white"/>
    
    </LinearLayout>
    

    also, set view pager to it in your activity like :

    IconTextTabLayout tabLayout = (IconTextTabLayout) findViewById(R.id.sliding_tabs);
    tabLayout.setupWithViewPager(viewPager);
    

    Override getPageTitle in your viewpager adapter to provide title.

    @Override
    public CharSequence getPageTitle(int position) {
        return TITLES[i];
    }
    

    Additionally, if you want you can get icons too from the adapter by writing a method that returns drawables, just like the getPageTitle method. That's optional. Just a matter of design.

    --

    YourIcons[] = This is an array of drawables. In your case - xml files, with selected and non-selected images...