Android RadioGroup和Fragment实现底部菜单结构的首页?

导读:本篇文章讲解 Android RadioGroup和Fragment实现底部菜单结构的首页?,希望对大家有帮助,欢迎收藏,转发!站点地址:www.bmabk.com

效果图:

Android RadioGroup和Fragment实现底部菜单结构的首页?     Android RadioGroup和Fragment实现底部菜单结构的首页?

1.创建Fragment+布局(四个fragment都相似)

package com.ruidde.pictureselectordemo.fragment;

import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.fragment.app.Fragment;

import com.ruidde.pictureselectordemo.R;

public class PeiXunFragmentActivity extends Fragment {

   private Activity mActivity;
   private int staHeight ;
   @Override
   public void onAttach(Activity activity) { //��Activity
      this.mActivity = activity;
      super.onAttach(activity);
   }

   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
      staHeight = getArguments().getInt("height", 0);
      View view = LayoutInflater.from(mActivity).inflate(R.layout.tab_activity_peixun, null);
      
      return view;
   }
}
<?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" >
    
 <TextView 
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:text="培训"
     android:textSize="20sp"
     android:textColor="#f0f"
     android:gravity="center"
     />
</LinearLayout>

2.创建unit类(SystemBarTintManager)与adapter

package com.ruidde.pictureselectordemo.util;

import java.lang.reflect.Method;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout.LayoutParams;

/**
 * Class to manage status and navigation bar tint effects when using KitKat 
 * translucent system UI modes.
 *
 */
public class SystemBarTintManager {

    static {
        // Android allows a system property to override the presence of the navigation bar.
        // Used by the emulator.
        // See https://github.com/android/platform_frameworks_base/blob/master/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java#L1076
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            try {
                Class c = Class.forName("android.os.SystemProperties");
                Method m = c.getDeclaredMethod("get", String.class);
                m.setAccessible(true);
                sNavBarOverride = (String) m.invoke(null, "qemu.hw.mainkeys");
            } catch (Throwable e) {
                sNavBarOverride = null;
            }
        }
    }


    /**
     * The default system bar tint color value.
     */
    public static final int DEFAULT_TINT_COLOR = 0x99000000;

    private static String sNavBarOverride;

    private final SystemBarConfig mConfig;
    private boolean mStatusBarAvailable;
    private boolean mNavBarAvailable;
    private boolean mStatusBarTintEnabled;
    private boolean mNavBarTintEnabled;
    private View mStatusBarTintView;
    private View mNavBarTintView;

    /**
     * Constructor. Call this in the host activity onCreate method after its
     * content view has been set. You should always create new instances when
     * the host activity is recreated.
     *
     * @param activity The host activity.
     */
    @TargetApi(19)
    public SystemBarTintManager(Activity activity) {

        Window win = activity.getWindow();
        ViewGroup decorViewGroup = (ViewGroup) win.getDecorView();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            // check theme attrs
            int[] attrs = {android.R.attr.windowTranslucentStatus,
                    android.R.attr.windowTranslucentNavigation};
            TypedArray a = activity.obtainStyledAttributes(attrs);
            try {
                mStatusBarAvailable = a.getBoolean(0, false);
                mNavBarAvailable = a.getBoolean(1, false);
            } finally {
                a.recycle();
            }

            // check window flags
            WindowManager.LayoutParams winParams = win.getAttributes();
            int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
            if ((winParams.flags & bits) != 0) {
                mStatusBarAvailable = true;
            }
            bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
            if ((winParams.flags & bits) != 0) {
                mNavBarAvailable = true;
            }
        }

        mConfig = new SystemBarConfig(activity, mStatusBarAvailable, mNavBarAvailable);
        // device might not have virtual navigation keys
        if (!mConfig.hasNavigtionBar()) {
            mNavBarAvailable = false;
        }

        if (mStatusBarAvailable) {
            setupStatusBarView(activity, decorViewGroup);
        }
        if (mNavBarAvailable) {
            setupNavBarView(activity, decorViewGroup);
        }

    }

    /**
     * Enable tinting of the system status bar.
     *
     * If the platform is running Jelly Bean or earlier, or translucent system
     * UI modes have not been enabled in either the theme or via window flags,
     * then this method does nothing.
     *
     * @param enabled True to enable tinting, false to disable it (default).
     */
    public void setStatusBarTintEnabled(boolean enabled) {
        mStatusBarTintEnabled = enabled;
        if (mStatusBarAvailable) {
            mStatusBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE);
        }
    }

    /**
     * Enable tinting of the system navigation bar.
     *
     * If the platform does not have soft navigation keys, is running Jelly Bean
     * or earlier, or translucent system UI modes have not been enabled in either
     * the theme or via window flags, then this method does nothing.
     *
     * @param enabled True to enable tinting, false to disable it (default).
     */
    public void setNavigationBarTintEnabled(boolean enabled) {
        mNavBarTintEnabled = enabled;
        if (mNavBarAvailable) {
            mNavBarTintView.setVisibility(enabled ? View.VISIBLE : View.GONE);
        }
    }

    /**
     * Apply the specified color tint to all system UI bars.
     *
     * @param color The color of the background tint.
     */
    public void setTintColor(int color) {
        setStatusBarTintColor(color);
        setNavigationBarTintColor(color);
    }

    /**
     * Apply the specified drawable or color resource to all system UI bars.
     *
     * @param res The identifier of the resource.
     */
    public void setTintResource(int res) {
        setStatusBarTintResource(res);
        setNavigationBarTintResource(res);
    }

    /**
     * Apply the specified drawable to all system UI bars.
     *
     * @param drawable The drawable to use as the background, or null to remove it.
     */
    public void setTintDrawable(Drawable drawable) {
        setStatusBarTintDrawable(drawable);
        setNavigationBarTintDrawable(drawable);
    }

    /**
     * Apply the specified alpha to all system UI bars.
     *
     * @param alpha The alpha to use
     */
    public void setTintAlpha(float alpha) {
        setStatusBarAlpha(alpha);
        setNavigationBarAlpha(alpha);
    }

    /**
     * Apply the specified color tint to the system status bar.
     *
     * @param color The color of the background tint.
     */
    public void setStatusBarTintColor(int color) {
        if (mStatusBarAvailable) {
            mStatusBarTintView.setBackgroundColor(color);
        }
    }

    /**
     * Apply the specified drawable or color resource to the system status bar.
     *
     * @param res The identifier of the resource.
     */
    public void setStatusBarTintResource(int res) {
        if (mStatusBarAvailable) {
            mStatusBarTintView.setBackgroundResource(res);
        }
    }

    /**
     * Apply the specified drawable to the system status bar.
     *
     * @param drawable The drawable to use as the background, or null to remove it.
     */
    @SuppressWarnings("deprecation")
    public void setStatusBarTintDrawable(Drawable drawable) {
        if (mStatusBarAvailable) {
            mStatusBarTintView.setBackgroundDrawable(drawable);
        }
    }

    /**
     * Apply the specified alpha to the system status bar.
     *
     * @param alpha The alpha to use
     */
    @TargetApi(11)
    public void setStatusBarAlpha(float alpha) {
        if (mStatusBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            mStatusBarTintView.setAlpha(alpha);
        }
    }

    /**
     * Apply the specified color tint to the system navigation bar.
     *
     * @param color The color of the background tint.
     */
    public void setNavigationBarTintColor(int color) {
        if (mNavBarAvailable) {
            mNavBarTintView.setBackgroundColor(color);
        }
    }

    /**
     * Apply the specified drawable or color resource to the system navigation bar.
     *
     * @param res The identifier of the resource.
     */
    public void setNavigationBarTintResource(int res) {
        if (mNavBarAvailable) {
            mNavBarTintView.setBackgroundResource(res);
        }
    }

    /**
     * Apply the specified drawable to the system navigation bar.
     *
     * @param drawable The drawable to use as the background, or null to remove it.
     */
    @SuppressWarnings("deprecation")
    public void setNavigationBarTintDrawable(Drawable drawable) {
        if (mNavBarAvailable) {
            mNavBarTintView.setBackgroundDrawable(drawable);
        }
    }

    /**
     * Apply the specified alpha to the system navigation bar.
     *
     * @param alpha The alpha to use
     */
    @TargetApi(11)
    public void setNavigationBarAlpha(float alpha) {
        if (mNavBarAvailable && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            mNavBarTintView.setAlpha(alpha);
        }
    }

    /**
     * Get the system bar configuration.
     *
     * @return The system bar configuration for the current device configuration.
     */
    public SystemBarConfig getConfig() {
        return mConfig;
    }

    /**
     * Is tinting enabled for the system status bar?
     *
     * @return True if enabled, False otherwise.
     */
    public boolean isStatusBarTintEnabled() {
        return mStatusBarTintEnabled;
    }

    /**
     * Is tinting enabled for the system navigation bar?
     *
     * @return True if enabled, False otherwise.
     */
    public boolean isNavBarTintEnabled() {
        return mNavBarTintEnabled;
    }

    private void setupStatusBarView(Context context, ViewGroup decorViewGroup) {
        mStatusBarTintView = new View(context);
        LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getStatusBarHeight());
        params.gravity = Gravity.TOP;
        if (mNavBarAvailable && !mConfig.isNavigationAtBottom()) {
            params.rightMargin = mConfig.getNavigationBarWidth();
        }
        mStatusBarTintView.setLayoutParams(params);
        mStatusBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR);
        mStatusBarTintView.setVisibility(View.GONE);
        decorViewGroup.addView(mStatusBarTintView);
    }

    private void setupNavBarView(Context context, ViewGroup decorViewGroup) {
        mNavBarTintView = new View(context);
        LayoutParams params;
        if (mConfig.isNavigationAtBottom()) {
            params = new LayoutParams(LayoutParams.MATCH_PARENT, mConfig.getNavigationBarHeight());
            params.gravity = Gravity.BOTTOM;
        } else {
            params = new LayoutParams(mConfig.getNavigationBarWidth(), LayoutParams.MATCH_PARENT);
            params.gravity = Gravity.RIGHT;
        }
        mNavBarTintView.setLayoutParams(params);
        mNavBarTintView.setBackgroundColor(DEFAULT_TINT_COLOR);
        mNavBarTintView.setVisibility(View.GONE);
        decorViewGroup.addView(mNavBarTintView);
    }

    /**
     * Class which describes system bar sizing and other characteristics for the current
     * device configuration.
     *
     */
    public static class SystemBarConfig {

        private static final String STATUS_BAR_HEIGHT_RES_NAME = "status_bar_height";
        private static final String NAV_BAR_HEIGHT_RES_NAME = "navigation_bar_height";
        private static final String NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME = "navigation_bar_height_landscape";
        private static final String NAV_BAR_WIDTH_RES_NAME = "navigation_bar_width";
        private static final String SHOW_NAV_BAR_RES_NAME = "config_showNavigationBar";

        private final boolean mTranslucentStatusBar;
        private final boolean mTranslucentNavBar;
        private final int mStatusBarHeight;
        private final int mActionBarHeight;
        private final boolean mHasNavigationBar;
        private final int mNavigationBarHeight;
        private final int mNavigationBarWidth;
        private final boolean mInPortrait;
        private final float mSmallestWidthDp;

        private SystemBarConfig(Activity activity, boolean translucentStatusBar, boolean traslucentNavBar) {
            Resources res = activity.getResources();
            mInPortrait = (res.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT);
            mSmallestWidthDp = getSmallestWidthDp(activity);
            mStatusBarHeight = getInternalDimensionSize(res, STATUS_BAR_HEIGHT_RES_NAME);
            mActionBarHeight = getActionBarHeight(activity);
            mNavigationBarHeight = getNavigationBarHeight(activity);
            mNavigationBarWidth = getNavigationBarWidth(activity);
            mHasNavigationBar = (mNavigationBarHeight > 0);
            mTranslucentStatusBar = translucentStatusBar;
            mTranslucentNavBar = traslucentNavBar;
        }

        @TargetApi(14)
        private int getActionBarHeight(Context context) {
            int result = 0;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
                TypedValue tv = new TypedValue();
                context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true);
                result = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());
            }
            return result;
        }

        @TargetApi(14)
        private int getNavigationBarHeight(Context context) {
            Resources res = context.getResources();
            int result = 0;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
                if (hasNavBar(context)) {
                    String key;
                    if (mInPortrait) {
                        key = NAV_BAR_HEIGHT_RES_NAME;
                    } else {
                        key = NAV_BAR_HEIGHT_LANDSCAPE_RES_NAME;
                    }
                    return getInternalDimensionSize(res, key);
                }
            }
            return result;
        }

        @TargetApi(14)
        private int getNavigationBarWidth(Context context) {
            Resources res = context.getResources();
            int result = 0;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
                if (hasNavBar(context)) {
                    return getInternalDimensionSize(res, NAV_BAR_WIDTH_RES_NAME);
                }
            }
            return result;
        }

        @TargetApi(14)
        private boolean hasNavBar(Context context) {
            Resources res = context.getResources();
            int resourceId = res.getIdentifier(SHOW_NAV_BAR_RES_NAME, "bool", "android");
            if (resourceId != 0) {
                boolean hasNav = res.getBoolean(resourceId);
                // check override flag (see static block)
                if ("1".equals(sNavBarOverride)) {
                    hasNav = false;
                } else if ("0".equals(sNavBarOverride)) {
                    hasNav = true;
                }
                return hasNav;
            } else { // fallback
                return !ViewConfiguration.get(context).hasPermanentMenuKey();
            }
        }

        private int getInternalDimensionSize(Resources res, String key) {
            int result = 0;
            int resourceId = res.getIdentifier(key, "dimen", "android");
            if (resourceId > 0) {
                result = res.getDimensionPixelSize(resourceId);
            }
            return result;
        }

        @SuppressLint("NewApi")
        private float getSmallestWidthDp(Activity activity) {
            DisplayMetrics metrics = new DisplayMetrics();
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
                activity.getWindowManager().getDefaultDisplay().getRealMetrics(metrics);
            } else {
                // TODO this is not correct, but we don't really care pre-kitkat
                activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
            }
            float widthDp = metrics.widthPixels / metrics.density;
            float heightDp = metrics.heightPixels / metrics.density;
            return Math.min(widthDp, heightDp);
        }

        /**
         * Should a navigation bar appear at the bottom of the screen in the current
         * device configuration? A navigation bar may appear on the right side of
         * the screen in certain configurations.
         *
         * @return True if navigation should appear at the bottom of the screen, False otherwise.
         */
        public boolean isNavigationAtBottom() {
            return (mSmallestWidthDp >= 600 || mInPortrait);
        }

        /**
         * Get the height of the system status bar.
         *
         * @return The height of the status bar (in pixels).
         */
        public int getStatusBarHeight() {
            return mStatusBarHeight;
        }

        /**
         * Get the height of the action bar.
         *
         * @return The height of the action bar (in pixels).
         */
        public int getActionBarHeight() {
            return mActionBarHeight;
        }

        /**
         * Does this device have a system navigation bar?
         *
         * @return True if this device uses soft key navigation, False otherwise.
         */
        public boolean hasNavigtionBar() {
            return mHasNavigationBar;
        }

        /**
         * Get the height of the system navigation bar.
         *
         * @return The height of the navigation bar (in pixels). If the device does not have
         * soft navigation keys, this will always return 0.
         */
        public int getNavigationBarHeight() {
            return mNavigationBarHeight;
        }

        /**
         * Get the width of the system navigation bar when it is placed vertically on the screen.
         *
         * @return The width of the navigation bar (in pixels). If the device does not have
         * soft navigation keys, this will always return 0.
         */
        public int getNavigationBarWidth() {
            return mNavigationBarWidth;
        }

        /**
         * Get the layout inset for any system UI that appears at the top of the screen.
         *
         * @param withActionBar True to include the height of the action bar, False otherwise.
         * @return The layout inset (in pixels).
         */
        public int getPixelInsetTop(boolean withActionBar) {
            return (mTranslucentStatusBar ? mStatusBarHeight : 0) + (withActionBar ? mActionBarHeight : 0);
        }

        /**
         * Get the layout inset for any system UI that appears at the bottom of the screen.
         *
         * @return The layout inset (in pixels).
         */
        public int getPixelInsetBottom() {
            if (mTranslucentNavBar && isNavigationAtBottom()) {
                return mNavigationBarHeight;
            } else {
                return 0;
            }
        }

        /**
         * Get the layout inset for any system UI that appears at the right of the screen.
         *
         * @return The layout inset (in pixels).
         */
        public int getPixelInsetRight() {
            if (mTranslucentNavBar && !isNavigationAtBottom()) {
                return mNavigationBarWidth;
            } else {
                return 0;
            }
        }

    }

}
package com.ruidde.pictureselectordemo.adapter;

import android.os.Bundle;
import android.view.View;
import android.widget.RadioButton;
import android.widget.RadioGroup;

import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentActivity;
import androidx.fragment.app.FragmentTransaction;

import com.ruidde.pictureselectordemo.R;

import java.util.List;

public class FragmentTabAdapter implements RadioGroup.OnCheckedChangeListener {
   private List<Fragment> fragments; // 一个tab页面对应一个Fragment
   private RadioGroup rgs; // 用于切换tab
   private FragmentActivity fragmentActivity; // Fragment所属的Activity
   private int fragmentContentId; // Activity中所要被替换的区域的id
   private Bundle args;
   private int currentTab = 0; // 当前Tab页面索引

   private OnRgsExtraCheckedChangedListener onRgsExtraCheckedChangedListener; // 用于让调用者在切换tab时候增加新的功能

   public FragmentTabAdapter(FragmentActivity fragmentActivity,List<Fragment> fragments, int fragmentContentId, RadioGroup rgs,
                       Bundle args) {
      this.fragmentActivity = fragmentActivity;
      this.fragments = fragments;
      this.fragmentContentId = fragmentContentId;
      this.rgs = rgs;
      this.args = args;

      /**
       * 默认显示第一页 FragmentTransaction对fragment进行添加,移除,替换,以及执行其他动作。 从
       * FragmentManager 获得一个FragmentTransaction的实例 :
       * FragmentManager fragmentManager = getFragmentManager();
       * FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
       */
      FragmentTransaction ft = fragmentActivity.getSupportFragmentManager().beginTransaction();
      Fragment fragment = fragments.get(currentTab);
      saveBundle(fragment);
      ft.add(fragmentContentId, fragment);
      ft.commit();
      View view = rgs.getChildAt(currentTab);
      if (view instanceof RadioButton) {
         ((RadioButton) view).setChecked(true);
      }
      rgs.setOnCheckedChangeListener(this);
   }

   @Override
   public void onCheckedChanged(RadioGroup group, int checkedId) {
      for(int i = 0; i < rgs.getChildCount(); i++){
         if(rgs.getChildAt(i).getId() == checkedId){
            Fragment fragment = fragments.get(i);
            FragmentTransaction ft = obtainFragmentTransaction(i);

            getCurrentFragment().onPause(); // 暂停当前tab
            if(fragment.isAdded()){
               fragment.onResume(); // 启动目标tab的onResume()
            }else{
               saveBundle(fragment);
               ft.add(fragmentContentId, fragment);
            }
            showTab(i); // 显示目标tab
            ft.commit();

            // 如果设置了切换tab额外功能功能接口
            if(null != onRgsExtraCheckedChangedListener){
               onRgsExtraCheckedChangedListener.OnRgsExtraCheckedChanged(group, checkedId, i);
            }
         }
      }


   }
   /**
    * 切换tab
    * @param idx
    */
   private void showTab(int idx){
      for(int i = 0; i < fragments.size(); i++){
         Fragment fragment = fragments.get(i);
         FragmentTransaction ft = obtainFragmentTransaction(idx);

         if(idx == i){
            ft.show(fragment);
         }else{
            ft.hide(fragment);
         }
         ft.commit();
      }
      currentTab = idx; // 更新目标tab为当前tab
   }
   /**
    * 获取一个带动画的FragmentTransaction
    * @param index
    * @return
    */
   private FragmentTransaction obtainFragmentTransaction(int index){
      FragmentTransaction ft = fragmentActivity.getSupportFragmentManager().beginTransaction();
      // 设置切换动画
      if(index > currentTab){
         ft.setCustomAnimations(R.anim.slide_left_in, R.anim.slide_left_out);
      }else{
         ft.setCustomAnimations(R.anim.slide_right_in, R.anim.slide_right_out);
      }
      return ft;
   }
   private void saveBundle(Fragment fragment){
      if (args != null && !args.isEmpty()) {
         Bundle bundle = fragment.getArguments();
         if (bundle != null) {
            bundle.putAll(args);
         } else {
            fragment.setArguments(args);
         }
      }
   }
   public Fragment getCurrentFragment(){ //获取当前的Fragment
      return fragments.get(currentTab);
   }

   /**
    *  切换tab额外功能功能接口
    */
   public static class OnRgsExtraCheckedChangedListener{
      public void OnRgsExtraCheckedChanged(RadioGroup radioGroup, int checkedId, int index){

      }
   }
   public OnRgsExtraCheckedChangedListener getOnRgsExtraCheckedChangedListener() {
      return onRgsExtraCheckedChangedListener;
   }

   public void setOnRgsExtraCheckedChangedListener(OnRgsExtraCheckedChangedListener onRgsExtraCheckedChangedListener) {
      this.onRgsExtraCheckedChangedListener = onRgsExtraCheckedChangedListener;
   }
}

3.res目录中添加切换动画

(1).slide_left_in

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

    <translate
        android:duration="300"
        android:fromXDelta="100%p"
        android:toXDelta="0" />

</set>

(2).slide_left_out

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

    <translate
        android:duration="300"
        android:fromXDelta="0"
        android:toXDelta="-100%p" />

</set>

4.在Activity中调用方式

package com.ruidde.pictureselectordemo;

import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.view.WindowManager;
import android.widget.RadioGroup;

import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentActivity;

import com.ruidde.pictureselectordemo.adapter.FragmentTabAdapter;
import com.ruidde.pictureselectordemo.fragment.FindFragmentActivity;
import com.ruidde.pictureselectordemo.fragment.MineFragmentActivity;
import com.ruidde.pictureselectordemo.fragment.PeiXunFragmentActivity;
import com.ruidde.pictureselectordemo.fragment.ZiXunFragmentAvtivity;
import com.ruidde.pictureselectordemo.util.SystemBarTintManager;

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

public class MainActivity extends FragmentActivity {
    private Context mContext;
    private RadioGroup rgs;
    public List<Fragment> fragments = new ArrayList<Fragment>();
    public int StatusBarHeight = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tab);
        mContext = this;
        initData();
    }

    private void initData() {
        rgs = findViewById(R.id.tabs_rg);

        addFragment(); //添加Fragment
        setupViews();  //实例化操作
        setSystemBar(); //获取bar高度

    }

    private void setupViews() {

        FragmentTabAdapter tabAdapter = new FragmentTabAdapter(this, fragments, R.id.tab_content, rgs, setStaHeight());
        tabAdapter.setOnRgsExtraCheckedChangedListener(new FragmentTabAdapter.OnRgsExtraCheckedChangedListener() {
            @Override
            public void OnRgsExtraCheckedChanged(RadioGroup radioGroup, int checkedId, int index) {
                Log.e("+++TabActivity+++", "RadioGroup=" + radioGroup.getChildAt(index).getId() + "/ radioButton=" + checkedId + "/ position=" + index);
            }
        });
    }

    private void addFragment() {
        fragments.add(new PeiXunFragmentActivity());
        fragments.add(new ZiXunFragmentAvtivity());
        fragments.add(new FindFragmentActivity());
        fragments.add(new MineFragmentActivity());
    }

    private void setSystemBar() {
        SystemBarTintManager mTintManager = new SystemBarTintManager(this);
        mTintManager.setStatusBarTintEnabled(true);
        mTintManager.setTintResource(R.color.app_main_color);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            setTranslucentStatus(true);
            SystemBarTintManager.SystemBarConfig config = mTintManager.getConfig();
            StatusBarHeight = config.getStatusBarHeight();
        }
    }

    private void setTranslucentStatus(boolean on) {
        Window win = getWindow();
        WindowManager.LayoutParams winParams = win.getAttributes();
        final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
        if (on) {
            winParams.flags |= bits;
        } else {
            winParams.flags &= ~bits;
        }
        win.setAttributes(winParams);
    }

    private Bundle setStaHeight() {
        Bundle build = new Bundle();
        build.putInt("height", StatusBarHeight);
        return build;
    }

}

5.如需源码请点击该链接下载:https://download.csdn.net/download/yyxhzdm/12880347

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