如何在Android中实现短视频画心效果

如何在Android中实现短视频画心效果？针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。

主布局

<?xml version="1.0" encoding="utf-8"?><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"    android:orientation="vertical"    tools:context=".MainActivity"><androidx.recyclerview.widget.RecyclerView    android:id="@+id/ree"    android:layout_width="match_parent"    android:layout_height="match_parent"></androidx.recyclerview.widget.RecyclerView>    <SurfaceView        android:id="@+id/surface"        android:layout_width="match_parent"        android:layout_height="match_parent"></SurfaceView></RelativeLayout>

适配器布局`

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <com.shuyu.gsyvideoplayer.video.StandardGSYVideoPlayer        android:id="@+id/detail"        android:layout_width="match_parent"        android:layout_height="match_parent" /></LinearLayout>

Activity页面逻辑

package com.example.pagfany;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.PixelFORMat;import android.graphics.PorterDuff;import android.graphics.PorterDuffXfermode;import android.graphics.RectF;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Display;import android.view.MotionEvent;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.View;import android.widget.Toast;import androidx.annotation.NonNull;import androidx.appcompat.app.AppCompatActivity;import androidx.recyclerview.widget.RecyclerView;import java.util.ArrayList;import java.util.List;import butterknife.BindView;import butterknife.ButterKnife;public class MainActivity extends AppCompatActivity implements BaseLinearLayoutManager.OnListener, SurfaceHolder.Callback {    @BindView(R.id.ree)    RecyclerView ree;    @BindView(R.id.surface)    SurfaceView surface;    private BaseeAdap baseeAdap;    private SurfaceHolder surfaceHolder;    private Display display;    Handler handler=new Handler(){        @Override        public void handleMessage(@NonNull Message msg) {//清除画板上的内容            super.handleMessage(msg);           if (msg.what==1){               Canvas canvas = surfaceHolder.lockCanvas();               Paint paint=new Paint(Paint.ANTI_ALIAS_FLAG);               paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));               paint.setColor(Color.TRANSPARENT);               RectF rectF = new RectF(0,0,display.getWidth(),display.getHeight());               canvas.drawRect(rectF,paint);               surfaceHolder.unlockCanvasAndPost(canvas);           }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ButterKnife.bind(this);        BaseLinearLayoutManager baseLinearLayoutManager = new BaseLinearLayoutManager(this);        baseLinearLayoutManager.setOnListener(this);//接口回调        ree.setLayoutManager(baseLinearLayoutManager);        List<StringBean> beans = new ArrayList<>();        for (int i = 0; i < shuzu.videoUrls.length; i++) {            beans.add(new StringBean(shuzu.videoUrls[i]));        }        baseeAdap = new BaseeAdap(R.layout.basevideo, beans);        ree.setAdapter(baseeAdap);        display=getWindowManager().getDefaultDisplay();//通过管理器获取屏幕信息        surface.setZOrderOnTop(true);//置顶        surface.getHolder().setFormat(PixelFormat.TRANSPARENT);//画板透明社        surface.getHolder().addCallback(this);//接口回调    }    @Override    public void init() {    }    @Override    public void reselat() {        baseeAdap.getreselat();//调用适配器的方法    }    @Override    public void getplay(int position) {        baseeAdap.gepalay(position);//滑动播放！！有错误    }    @Override    protected void onDestroy() {        super.onDestroy();        baseeAdap.getAllreselat();//关闭程序清空缓存    }    private long time=0;    private float y;    private float x;    @Override    public void surfaceCreated(@NonNull SurfaceHolder holder) {        surfaceHolder=holder;        surface.setOnTouchListener(new View.OnTouchListener() {            @Override            public boolean onTouch(View v, MotionEvent event) {                switch (event.getAction()){//双击                    case MotionEvent.ACTION_DOWN://按下按钮                        if (time==0){                            time=System.currentTimeMillis();//第一次时间                        }else {                            if (System.currentTimeMillis()-time<250){//当前时间 减去time                                 y = event.getY();                                 x = event.getX();//点击的坐标                                huaxin();//调用花心的方法                                handler.sendEmptyMessageAtTime(1,500);                            }else {                                time=System.currentTimeMillis();                            }                        }                        break;                }                return false;            }        });    }    private void huaxin() {        Canvas canvas = surfaceHolder.lockCanvas();        Paint paint=new Paint(Paint.ANTI_ALIAS_FLAG);        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));//当想设置图片重叠的相交状态时        paint.setColor(Color.TRANSPARENT);        RectF rectF = new RectF(0,0,display.getWidth(),display.getHeight());        canvas.drawRect(rectF,paint);//清空画板        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);        canvas.drawBitmap(bitmap,x,y,null);//注意不要用画笔 当前画笔是透明色        surfaceHolder.unlockCanvasAndPost(canvas);    }    @Override    public void surfaceChanged(@NonNull SurfaceHolder holder, int format, int width, int height) {    }    @Override    public void surfaceDestroyed(@NonNull SurfaceHolder holder) {    }}

适配器

package com.example.pagfany;import android.util.Log;import androidx.annotation.Nullable;import com.chad.library.adapter.base.BaseQuickAdapter;import com.chad.library.adapter.base.BaseViewHolder;import com.shuyu.gsyvideoplayer.GSYVideoManager;import com.shuyu.gsyvideoplayer.video.StandardGSYVideoPlayer;import java.util.List;public class BaseeAdap extends BaseQuickAdapter<StringBean, BaseViewHolder> {    private StandardGSYVideoPlayer standardGSYVideoPlayer;    public BaseeAdap(int layoutResId, @Nullable List<StringBean> data) {        super(layoutResId, data);    }    private int aa=-1;    @Override    protected void convert(BaseViewHolder helper, StringBean item) {      standardGSYVideoPlayer =helper.getView(R.id.detail);        standardGSYVideoPlayer.setUp(item.getA(),true,"美女");        standardGSYVideoPlayer.startPlayLogic();    }    public void getreselat() {        standardGSYVideoPlayer.release();    }    public void getAllreselat() {        GSYVideoManager.releaseAllVideos();    }    public void gepalay(int position) {        standardGSYVideoPlayer.setUp(shuzu.videoUrls[position],true,"美女");        standardGSYVideoPlayer.startPlayLogic();    }}

自定义线性布局

package com.example.pagfany;import android.content.Context;import android.util.Log;import android.view.View;import androidx.annotation.NonNull;import androidx.recyclerview.widget.LinearLayoutManager;import androidx.recyclerview.widget.PagerSnapHelper;import androidx.recyclerview.widget.RecyclerView;public class BaseLinearLayoutManager extends LinearLayoutManager implements RecyclerView.OnChildAttachStateChangeListener {    public BaseLinearLayoutManager(Context context) {        super(context);    }    public BaseLinearLayoutManager(Context context, int orientation, boolean reverseLayout) {        super(context, orientation, reverseLayout);    }    private OnListener onListener;//接口    public void setOnListener(OnListener onListener) {        this.onListener = onListener;    }    interface OnListener{        void init();        void reselat();        void getplay(int position);    }    private PagerSnapHelper pagerSnapHelper;//    @Override    public void onAttachedToWindow(RecyclerView view) {        super.onAttachedToWindow(view);        pagerSnapHelper=new PagerSnapHelper();        pagerSnapHelper.attachToRecyclerView(view);//RecyclerView的滑动        view.addOnChildAttachStateChangeListener(this);//滑动状态监听    }    private static final String TAG = "BaseLinearLayoutManager";    @Override    public void onScrollStateChanged(int state) {        super.onScrollStateChanged(state);        switch (state){            case RecyclerView.SCROLL_STATE_IDLE:                View snapView = pagerSnapHelper.findSnapView(this);                int position = getPosition(snapView);                onListener.getplay(position);                Log.i(TAG, "onScrollStateChanged: "+position);                break;        }    }    @Override    public void onChildViewAttachedToWindow(@NonNull View view) {        Log.i(TAG, "onChildViewAttachedToWindow: "+132456);    }    @Override    public void onChildViewDetachedFromWindow(@NonNull View view) {          if (onListener!=null){              onListener.reselat();//滑动下一个页面 让上个视频没有声音 清除缓存          }    }}

Android是什么

Android是一种基于linux内核的自由及开放源代码的操作系统，主要使用于移动设备，如智能手机和平板电脑，由美国Google公司和开放手机联盟领导及开发。

关于如何在Android中实现短视频画心效果问题的解答就分享到这里了，希望以上内容可以对大家有一定的帮助，如果你还有很多疑惑没有解开，可以关注编程网精选频道了解更多相关知识。