兩個(gè)surfaceView實(shí)現(xiàn)切換效果

來(lái)源：本站原創(chuàng)|時(shí)間：2020-01-10|欄目：Android|點(diǎn)擊：次

需求：視頻通話界面，兩個(gè)surfaceView一個(gè)顯示本端的視圖，另一個(gè)顯示對(duì)端的視圖，由于顯示比例的問(wèn)題總會(huì)存在一個(gè)覆蓋另一個(gè)的問(wèn)題，為保證用戶體驗(yàn)，規(guī)定小的覆蓋大的視圖上面，且點(diǎn)擊小的視圖可切花為大圖視圖居中，達(dá)到兩個(gè)視圖切花的功能。簡(jiǎn)單寫一個(gè)demo完成功能的測(cè)試需求，為了較少文章的篇幅，視圖的內(nèi)容用回執(zhí)矩形代替（實(shí)際開(kāi)發(fā)中顯示的是本地照相采集的數(shù)據(jù)和對(duì)端經(jīng)過(guò)opgl處理的數(shù)據(jù)）

簡(jiǎn)單的布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent" >


 <RelativeLayout
 android:id="@+id/remote_rl"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"

  >

 <SurfaceView
  android:id="@+id/remote_view"
  android:layout_width="match_parent"
  android:layout_height="match_parent"


</RelativeLayout> android:layout_gravity="center" />

 </RelativeLayout>

 <RelativeLayout
 android:id="@+id/local_rl"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"

 >

 <SurfaceView
  android:id="@+id/local_view"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
</RelativeLayout>

具體的demo實(shí)現(xiàn)

public class MainActivity extends Activity implements View.OnClickListener {
 public static final String TAG = "sssss";
 //遠(yuǎn)端的視圖
 private SurfaceView remote_sv;
 // 本地的視圖
 private SurfaceView local_sv;
 private SurfaceHolder remote_holder;
 private SurfaceHolder local_holder;
 private RelativeLayout remote_rl;
 private RelativeLayout local_rl;

 private int screenWidth;
 private int screenHeight;

 private int beforRemoteweith;
 private int beforLocalweith;
 private int beforRemoteheigth;
 private int beforLocalheigth;
 private int StateAB = 0;
 private int StateBA = 1;
 private int mSate;
 private int defaultLocalHeight=200;
 private int defaultLocalwidth=400;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 DisplayMetrics dm = getResources().getDisplayMetrics();
 screenWidth = dm.widthPixels;
 screenHeight = dm.heightPixels - 500;
 remote_sv = (SurfaceView) findViewById(R.id.remote_view);
 remote_rl = (RelativeLayout) findViewById(R.id.remote_rl);
 local_rl = (RelativeLayout) findViewById(R.id.local_rl);
 remote_sv.setOnClickListener(this);

 LayoutParams params = new LayoutParams(screenWidth, screenHeight);
 remote_sv.setLayoutParams(params);
 remote_holder = remote_sv.getHolder();
 // 對(duì) surfaceView 進(jìn)行操作
 remote_holder.addCallback(new SurfaceHolder.Callback() {
  @Override
  public void surfaceCreated(SurfaceHolder holder) {
  Canvas c = remote_holder.lockCanvas();
  // 2.開(kāi)畫
  Paint p = new Paint();
  p.setColor(Color.RED);
  Rect aa = new Rect(0, 0, holder.getSurfaceFrame().width(),
   holder.getSurfaceFrame().height());
  c.drawRect(aa, p);
  // 3. 解鎖畫布 更新提交屏幕顯示內(nèi)容
  remote_holder.unlockCanvasAndPost(c);
  }

  @Override
  public void surfaceChanged(SurfaceHolder holder, int format,
   int width, int height) {
  /**
  *
  Log.d(TAG,"remote_holder surfaceChanged width"+ width+"height"+height);
  Canvas c = remote_holder.lockCanvas();
  // 2.開(kāi)畫
  Paint p = new Paint();
  p.setColor(Color.RED);
  Rect aa = new Rect(0, 0, holder.getSurfaceFrame().width(),
   holder.getSurfaceFrame().height());
  c.drawRect(aa, p);
  // 3. 解鎖畫布 更新提交屏幕顯示內(nèi)容
  remote_holder.unlockCanvasAndPost(c);
  */}

  @Override
  public void surfaceDestroyed(SurfaceHolder holder) {

  }
 });// 自動(dòng)運(yùn)行surfaceCreated以及surfaceChanged

 local_sv = (SurfaceView) findViewById(R.id.local_view);
 local_sv.setOnClickListener(this);
 local_sv.setOnClickListener(this);
 // sv.setZOrderOnTop(false);
 local_sv.setZOrderOnTop(true);
 // 這兩個(gè)方法差不多，設(shè)置了就會(huì)浮現(xiàn)到頂部，但是，后面的看不見(jiàn)，要像下面設(shè)置為透明
 // local_sv.setZOrderOnTop(true);
 // local_sv.setZOrderMediaOverlay(true);

 local_holder = local_sv.getHolder();

 remote_holder.setFormat(PixelFormat.TRANSPARENT);
 local_holder.setFormat(PixelFormat.TRANSPARENT);
 LayoutParams params1 = new LayoutParams(defaultLocalHeight, defaultLocalwidth);
 local_sv.setLayoutParams(params1);
 remote_holder = remote_sv.getHolder();
 local_holder.addCallback(new SurfaceHolder.Callback() {
  @Override
  public void surfaceCreated(SurfaceHolder holder) {
  Canvas c = holder.lockCanvas();
  // 2.開(kāi)畫
  Paint p = new Paint();
  p.setColor(Color.YELLOW);
  Rect aa = new Rect(0, 0, holder.getSurfaceFrame().width(),
   holder.getSurfaceFrame().height());
  c.drawRect(aa, p);
  // 3. 解鎖畫布 更新提交屏幕顯示內(nèi)容
  holder.unlockCanvasAndPost(c);
  }

  @Override
  public void surfaceChanged(SurfaceHolder holder, int format,
   int width, int height) {
 /**
  *
  Log.d(TAG,"local_holder surfaceChanged width"+ width+"height"+height);
  Canvas c = holder.lockCanvas();
  // 2.開(kāi)畫
  Paint p = new Paint();
  p.setColor(Color.YELLOW);
  Rect aa = new Rect(0, 0, holder.getSurfaceFrame().width()-50,
   holder.getSurfaceFrame().height()-50);
  c.drawRect(aa, p);
  // 3. 解鎖畫布 更新提交屏幕顯示內(nèi)容
  holder.unlockCanvasAndPost(c);

  */}

  @Override
  public void surfaceDestroyed(SurfaceHolder holder) {

  } 
 });
 zoomOpera(local_rl, local_sv, remote_sv, remote_rl, defaultLocalwidth,
  defaultLocalHeight, RelativeLayout.CENTER_IN_PARENT);
 }

 @Override
 public void onClick(View view) {
 switch (view.getId()) {
 case R.id.local_view:
  Log.d(TAG, " onClick local_view" + mSate);
  if (mSate == StateAB) {
  zoomlocalViewout(beforRemoteweith, beforRemoteheigth, local_sv,
   remote_sv);
  zoomRemoteViewint(beforLocalweith, beforLocalheigth);
  mSate = StateBA;
  }

  break;
 case R.id.remote_view:
  Log.d(TAG, " onClick emote_view" + mSate);
  if (mSate == StateBA) {

  zoomRemoteout(beforRemoteweith, beforRemoteheigth, local_sv,
   remote_sv);
  zoomlocalViewint(beforLocalweith, beforLocalheigth);

  mSate = StateAB;
  }

  break;
 default:
  break;
 }

 }
//放大遠(yuǎn)端的視圖
 private void zoomRemoteout(int weith2, int heigth2, SurfaceView localView,
  SurfaceView remoteView) {

 beforLocalheigth = localView.getMeasuredHeight();
 beforLocalweith = localView.getMeasuredWidth();
 beforRemoteheigth = remoteView.getMeasuredHeight();
 beforRemoteweith = remoteView.getMeasuredWidth();
 Log.d(TAG, "zoomRemoteout beforLocalheigth" + beforLocalheigth
  + "beforLocalweith" + beforLocalweith + "beforRemoteheigth"
  + beforRemoteheigth + "beforRemoteweith" + beforLocalweith);
 zoomOpera(local_rl, local_sv, remote_sv, remote_rl, screenWidth,
  beforLocalheigth, RelativeLayout.CENTER_IN_PARENT);

 }
//具體的視圖操作
 private void zoomOpera(View sourcView, SurfaceView beforeview,
  SurfaceView afterview, View detView, int beforLocalweith,
  int beforLocalHeigth, int rule) {

 LayoutParams params1 = new LayoutParams(LayoutParams.MATCH_PARENT,
  LayoutParams.MATCH_PARENT);

 Log.w(TAG, "beforLocalheigth = " + beforLocalheigth
  + "; beforLocalweith = " + beforLocalweith);
 params1.addRule(rule, RelativeLayout.TRUE);
 afterview.setLayoutParams(params1);
 afterview.setBackgroundResource(android.R.color.transparent);
 params1 = new LayoutParams(beforLocalweith, beforLocalHeigth);
 params1.addRule(rule, RelativeLayout.TRUE);
 detView.setLayoutParams(params1);

 }
//縮小遠(yuǎn)端的視圖
 private void zoomRemoteViewint(int weith2, int heigth2) {
 RelativeLayout paretview = (RelativeLayout) local_rl.getParent();
 paretview.removeView(remote_rl);
 paretview.removeView(local_rl);
 zoomOpera(local_rl, local_sv, remote_sv, remote_rl, beforLocalweith,
  beforLocalheigth, RelativeLayout.ALIGN_PARENT_TOP);
 Log.d(TAG, "paretview" + paretview.getChildCount());
 paretview.addView(local_rl);
 paretview.addView(remote_rl);
 remote_sv.setZOrderOnTop(true);

 }
//放大本端的視圖
 private void zoomlocalViewout(int weith2, int heigth2,
  SurfaceView localView, SurfaceView remoteView) {
 beforLocalheigth = localView.getMeasuredHeight();
 beforLocalweith = localView.getMeasuredWidth();
 beforRemoteheigth = remoteView.getMeasuredHeight();
 beforRemoteweith = remoteView.getMeasuredWidth();
 Log.d(TAG, "zoomlocalViewout beforLocalheigth" + beforLocalheigth
  + "beforLocalweith" + beforLocalweith + "beforRemoteheigth"
  + beforRemoteheigth + "beforRemoteweith" + beforRemoteweith);
 zoomOpera(remote_rl, remote_sv, local_sv, local_rl, beforRemoteweith,
  beforRemoteheigth, RelativeLayout.CENTER_IN_PARENT);

 }
//減小本端的視圖
 private void zoomlocalViewint(int weith2, int heigth2) {
 RelativeLayout paretview = (RelativeLayout) local_rl.getParent();
 paretview.removeView(remote_rl);
 paretview.removeView(local_rl);
 zoomOpera(remote_rl, remote_sv, local_sv, local_rl, beforRemoteweith,
  beforRemoteheigth, RelativeLayout.ALIGN_PARENT_TOP);
 paretview.addView(remote_rl);
 paretview.addView(local_rl);
 local_sv.setZOrderOnTop(true);

 }
}

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持我們。

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