android实现录屏功能

2023-08-02 09:19:05 181

本文实例为大家分享了android实现录屏功能的具体代码，供大家参考，具体内容如下

1、mian.activity

packagecom.fpt.screenvideo;

importandroid.content.Context;
importandroid.content.Intent;
importandroid.graphics.Color;
importandroid.media.projection.MediaProjectionManager;
importandroid.support.v7.app.AppCompatActivity;
importandroid.os.Bundle;
importandroid.util.DisplayMetrics;
importandroid.util.Log;
importandroid.view.KeyEvent;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.CheckBox;
importandroid.widget.CompoundButton;
importandroid.widget.RadioGroup;
importandroid.widget.Toast;

publicclassMainActivityextendsAppCompatActivity{

privatestaticfinalStringTAG="MainActivity";

privateButtonmTextView,off_btn;

privatestaticfinalStringRECORD_STATUS="record_status";
privatestaticfinalintREQUEST_CODE=1000;

privateintmScreenWidth;
privateintmScreenHeight;
privateintmScreenDensity;

/**是否已经开启视频录制*/
privatebooleanisStarted=false;
/**是否为标清视频*/
privatebooleanisVideoSd=true;
/**是否开启音频录制*/
privatebooleanisAudio=true;

@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.i(TAG,"onCreate");
if(savedInstanceState!=null){
isStarted=savedInstanceState.getBoolean(RECORD_STATUS);
}
getView();
getScreenBaseInfo();
}
privatevoidgetView(){
mTextView=findViewById(R.id.button_control);
off_btn=findViewById(R.id.button_contro2);
off_btn.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewview){
////Intentservice=newIntent(this,ScreenRecordService.class);
//stopService(service);
//isStarted=!isStarted;
}
});
if(isStarted){
statusIsStarted();
}else{
statusIsStoped();
}
mTextView.setOnClickListener(newView.OnClickListener(){

@Override
publicvoidonClick(Viewv){
//TODOAuto-generatedmethodstub
if(isStarted){

stopScreenRecording();//功能
statusIsStoped();//仅仅是状态
Log.i(TAG,"Stopedscreenrecording");
}else{
startScreenRecording();//功能
}
}
});

RadioGroupradioGroup=(RadioGroup)findViewById(R.id.redio_group);
radioGroup.setOnCheckedChangeListener(newRadioGroup.OnCheckedChangeListener(){

@Override
publicvoidonCheckedChanged(RadioGroupgroup,intcheckedId){
//TODOAuto-generatedmethodstub
switch(checkedId){
caseR.id.sd_button:
isVideoSd=true;
break;
caseR.id.hd_button:
isVideoSd=false;
break;

default:
break;
}
}
});

CheckBoxaudioBox=(CheckBox)findViewById(R.id.audio_check_box);
audioBox.setOnCheckedChangeListener(newCompoundButton.OnCheckedChangeListener(){

@Override
publicvoidonCheckedChanged(CompoundButtonbuttonView,booleanisChecked){
//TODOAuto-generatedmethodstub
isAudio=isChecked;
}
});
}

/**
*开启屏幕录制时的UI状态
*/
privatevoidstatusIsStarted(){
mTextView.setText("停止录制");
mTextView.setBackgroundColor(Color.GREEN);
}

/**
*结束屏幕录制后的UI状态
*/
privatevoidstatusIsStoped(){
mTextView.setText("开始录制");
mTextView.setBackgroundColor(Color.RED);
}

/**
*获取屏幕相关数据
*/
privatevoidgetScreenBaseInfo(){
DisplayMetricsmetrics=newDisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mScreenWidth=metrics.widthPixels;
mScreenHeight=metrics.heightPixels;
mScreenDensity=metrics.densityDpi;
}

@Override
protectedvoidonSaveInstanceState(BundleoutState){
//TODOAuto-generatedmethodstub
super.onSaveInstanceState(outState);
outState.putBoolean(RECORD_STATUS,isStarted);
}

/**
*获取屏幕录制的权限
*/
privatevoidstartScreenRecording(){
//TODOAuto-generatedmethodstub
MediaProjectionManagermediaProjectionManager=(MediaProjectionManager)getSystemService(Context.MEDIA_PROJECTION_SERVICE);
IntentpermissionIntent=mediaProjectionManager.createScreenCaptureIntent();
startActivityForResult(permissionIntent,REQUEST_CODE);
}

@Override
protectedvoidonActivityResult(intrequestCode,intresultCode,Intentdata){
//TODOAuto-generatedmethodstub
super.onActivityResult(requestCode,resultCode,data);
if(requestCode==REQUEST_CODE){
if(resultCode==RESULT_OK){
//获得权限，启动Service开始录制
Intentservice=newIntent(this,ScreenRecordService.class);
service.putExtra("code",resultCode);
service.putExtra("data",data);
service.putExtra("audio",isAudio);
service.putExtra("width",mScreenWidth);
service.putExtra("height",mScreenHeight);
service.putExtra("density",mScreenDensity);
service.putExtra("quality",isVideoSd);
startService(service);
//已经开始屏幕录制，修改UI状态
isStarted=!isStarted;
statusIsStarted();
//simulateHome();//this.finish();//可以直接关闭Activity
Log.i(TAG,"Startedscreenrecording");
}else{
Toast.makeText(this,"跳出提示框",Toast.LENGTH_LONG).show();
Log.i(TAG,"Usercancelled");
}
}
}

/**
*关闭屏幕录制，即停止录制Service
*/
privatevoidstopScreenRecording(){
//TODOAuto-generatedmethodstub
Intentservice=newIntent(this,ScreenRecordService.class);
stopService(service);
isStarted=!isStarted;
}

/**
*模拟HOME键返回桌面的功能
*/
privatevoidsimulateHome(){
Intentintent=newIntent(Intent.ACTION_MAIN);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addCategory(Intent.CATEGORY_HOME);
this.startActivity(intent);
}

@Override
publicbooleanonKeyDown(intkeyCode,KeyEventevent){
//在这里将BACK键模拟了HOME键的返回桌面功能（并无必要）
if(keyCode==KeyEvent.KEYCODE_BACK){
simulateHome();
returntrue;
}
returnsuper.onKeyDown(keyCode,event);
}

}

2、ScreenRecordService

packagecom.fpt.screenvideo;

importandroid.app.Service;
importandroid.content.Context;
importandroid.content.Intent;
importandroid.hardware.display.DisplayManager;
importandroid.hardware.display.VirtualDisplay;
importandroid.media.MediaRecorder;
importandroid.media.projection.MediaProjection;
importandroid.media.projection.MediaProjectionManager;
importandroid.os.Environment;
importandroid.os.IBinder;
importandroid.util.Log;

importjava.io.IOException;
importjava.text.SimpleDateFormat;
importjava.util.Date;

publicclassScreenRecordServiceextendsService{
privatestaticfinalStringTAG="ScreenRecordingService";

privateintmScreenWidth;
privateintmScreenHeight;
privateintmScreenDensity;
privateintmResultCode;
privateIntentmResultData;
/**是否为标清视频*/
privatebooleanisVideoSd;
/**是否开启音频录制*/
privatebooleanisAudio;

privateMediaProjectionmMediaProjection;
privateMediaRecordermMediaRecorder;
privateVirtualDisplaymVirtualDisplay;

@Override
publicvoidonCreate(){
//TODOAuto-generatedmethodstub
super.onCreate();
Log.i(TAG,"ServiceonCreate()iscalled");
}

@Override
publicintonStartCommand(Intentintent,intflags,intstartId){
//TODOAuto-generatedmethodstub
Log.i(TAG,"ServiceonStartCommand()iscalled");

mResultCode=intent.getIntExtra("code",-1);
mResultData=intent.getParcelableExtra("data");
mScreenWidth=intent.getIntExtra("width",720);
mScreenHeight=intent.getIntExtra("height",1280);
mScreenDensity=intent.getIntExtra("density",1);
isVideoSd=intent.getBooleanExtra("quality",true);
isAudio=intent.getBooleanExtra("audio",true);

mMediaProjection=createMediaProjection();
mMediaRecorder=createMediaRecorder();
mVirtualDisplay=createVirtualDisplay();//必须在mediaRecorder.prepare()之后调用，否则报错"failtogetsurface"
mMediaRecorder.start();

returnService.START_NOT_STICKY;
}

privateMediaProjectioncreateMediaProjection(){
Log.i(TAG,"CreateMediaProjection");
return((MediaProjectionManager)getSystemService(Context.MEDIA_PROJECTION_SERVICE)).getMediaProjection(mResultCode,mResultData);
}

privateMediaRecordercreateMediaRecorder(){
SimpleDateFormatformatter=newSimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
DatecurDate=newDate(System.currentTimeMillis());
StringcurTime=formatter.format(curDate).replace("","");
StringvideoQuality="HD";
if(isVideoSd)videoQuality="SD";

Log.i(TAG,"CreateMediaRecorder");
MediaRecordermediaRecorder=newMediaRecorder();
//if(isAudio)mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setOutputFile(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES)+"/"+videoQuality+curTime+".mp4");
mediaRecorder.setVideoSize(mScreenWidth,mScreenHeight);//aftersetVideoSource(),setOutFormat()
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//aftersetOutputFormat()
//if(isAudio)mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);//aftersetOutputFormat()
intbitRate;
if(isVideoSd){
mediaRecorder.setVideoEncodingBitRate(mScreenWidth*mScreenHeight);
mediaRecorder.setVideoFrameRate(30);
bitRate=mScreenWidth*mScreenHeight/1000;
}else{
mediaRecorder.setVideoEncodingBitRate(5*mScreenWidth*mScreenHeight);
mediaRecorder.setVideoFrameRate(60);//aftersetVideoSource(),setOutFormat()
bitRate=5*mScreenWidth*mScreenHeight/1000;
}
try{
mediaRecorder.prepare();
}catch(IllegalStateException|IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
Log.i(TAG,"Audio:"+isAudio+",SDvideo:"+isVideoSd+",BitRate:"+bitRate+"kbps");

returnmediaRecorder;
}

privateVirtualDisplaycreateVirtualDisplay(){
Log.i(TAG,"CreateVirtualDisplay");
returnmMediaProjection.createVirtualDisplay(TAG,mScreenWidth,mScreenHeight,mScreenDensity,
DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR,mMediaRecorder.getSurface(),null,null);
}

@Override
publicvoidonDestroy(){
//TODOAuto-generatedmethodstub
super.onDestroy();
Log.i(TAG,"ServiceonDestroy");
if(mVirtualDisplay!=null){
mVirtualDisplay.release();
mVirtualDisplay=null;
}
if(mMediaRecorder!=null){
mMediaRecorder.setOnErrorListener(null);
mMediaProjection.stop();
mMediaRecorder.reset();
}
if(mMediaProjection!=null){
mMediaProjection.stop();
mMediaProjection=null;
}
}

@Override
publicIBinderonBind(Intentintent){
//TODOAuto-generatedmethodstub
returnnull;
}
}

3、androidManifest.xml权限

4、service的注册

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

声明：本文内容来源于网络，版权归原作者所有，内容由互联网用户自发贡献自行上传，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任。如果您发现有涉嫌版权的内容，欢迎发送邮件至：czq8825#qq.com（发邮件时，请将#更换为@）进行举报，并提供相关证据，一经查实，本站将立刻删除涉嫌侵权内容。

android实现录屏功能

热门推荐

随机推荐