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，可以关注亿速云行业资讯频道了解更多相关知识。
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