ImageSwitcher轮播图片好用

<ImageSwitcher
        android:id="@ id/imageSwitcher"
        android:background="@color/white"
        android:layout_marginTop="17dp"
        android:layout_width="match_parent"
        android:layout_marginLeft="13dp"
        android:layout_marginRight="13dp"
        android:layout_height="186dp"
        >
    </ImageSwitcher>

Fragment中

package com.ruhai.yibei.fragment;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;

import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ViewSwitcher;

import com.ruhai.yibei.R;


public class HomeFragment extends Fragment {
    private LinearLayout mTitleBar;
    private ImageSwitcher mImagSwitcher;
    private int[] imgIds;


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        imgIds = new int[]{R.mipmap.banner,R.mipmap.banner2};
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_home, container, false);
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mTitleBar = (LinearLayout) getActivity().findViewById(R.id.title_bar);
        setImmerseLayout(mTitleBar);

        mImagSwitcher = (ImageSwitcher) getActivity().findViewById(R.id.imageSwitcher);

        if(mImagSwitcher!=null){
            mImagSwitcher.setFactory(new ViewSwitcher.ViewFactory() {
                @Override
                public View makeView() {
                    // makeView返回的是当前需要显示的ImageView控件，用于填充进ImageSwitcher中
                    return new ImageView(getActivity());
                }
            });
        }
        if(mImagSwitcher!=null){
            mImagSwitcher.postDelayed(new Runnable() {
                int currentIndex= 0;
                @Override
                public void run() {
				                mImagSwitcher.setBackgroundResource(imgIds[currentIndex]);
                    Log.e("wy", "mListString:" imgIds[currentIndex]);
//                    Bitmap bit = BitmapFactory.decodeFile(imgIds[currentIndex] "");
//                    Drawable drawable = new BitmapDrawable(bit);
//                    mImagSwitcher.setBackgroundDrawable(drawable);
                    if(currentIndex ==(imgIds.length - 1))
                        currentIndex = 0;
                    else
                        currentIndex  ;
                    mImagSwitcher.postDelayed(this,3000);
                }
            },200);
        }

    }

    //获取沉浸式布局
    protected void setImmerseLayout(View view) {// view为标题栏
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Window window = getActivity().getWindow();
            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            int statusBarHeight = getStatusBarHeight(getActivity().getBaseContext());
            view.setPadding(0, statusBarHeight, 0, 0);
        }
    }

    public int getStatusBarHeight(Context context) {
        int result = 0;
        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen",
                "android");
        if (resourceId > 0) {
            result = context.getResources().getDimensionPixelSize(resourceId);
        }
        return result;
    }
}

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