实例介绍
【实例简介】安卓实现截屏以及录屏功能Demo 安卓实现截屏以及录屏功能Demo
【实例截图】
【核心代码】
package com.dzjin.screen.screenshotandrecorddemo; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.media.projection.MediaProjectionManager; import android.os.Environment; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.DisplayMetrics; import android.view.KeyEvent; import android.view.View; import android.widget.Button; import android.widget.LinearLayout; import android.widget.Toast; import java.io.FileOutputStream; import java.text.SimpleDateFormat; import java.util.Date; public class MainActivity extends AppCompatActivity { private LinearLayout linearLayout=null; private Button buttonRecord=null; private Button buttonCapture=null; private boolean isRecord=false; private int mScreenWidth; private int mScreenHeight; private int mScreenDensity; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); getScreenBaseInfo(); linearLayout=(LinearLayout)findViewById(R.id.linearLayout); buttonRecord=(Button)findViewById(R.id.buttonRecord); buttonCapture=(Button)findViewById(R.id.buttonCapture); buttonRecord.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(isRecord){ stopScreenRecord(); }else{ startScreenRecord(); } } }); buttonCapture.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { capture(linearLayout); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode == 1000){ if(resultCode == RESULT_OK){ //获得录屏权限,启动Service进行录制 Intent intent=new Intent(MainActivity.this,ScreenRecordService.class); intent.putExtra("resultCode",resultCode); intent.putExtra("resultData",data); intent.putExtra("mScreenWidth",mScreenWidth); intent.putExtra("mScreenHeight",mScreenHeight); intent.putExtra("mScreenDensity",mScreenDensity); startService(intent); Toast.makeText(this,"录屏开始",Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(this,"录屏失败",Toast.LENGTH_SHORT).show(); } } } //start screen record private void startScreenRecord(){ //Manages the retrieval of certain types of MediaProjection tokens. MediaProjectionManager mediaProjectionManager= (MediaProjectionManager)getSystemService(Context.MEDIA_PROJECTION_SERVICE); //Returns an Intent that must passed to startActivityForResult() in order to start screen capture. Intent permissionIntent=mediaProjectionManager.createScreenCaptureIntent(); startActivityForResult(permissionIntent,1000); isRecord=true; buttonRecord.setText(new String("停止录屏")); } //stop screen record. private void stopScreenRecord(){ Intent service = new Intent(this, ScreenRecordService.class); stopService(service); isRecord=false; buttonRecord.setText(new String("开始录屏")); Toast.makeText(this,"录屏成功",Toast.LENGTH_SHORT).show(); } public void capture(View v){ //格式化时间作为截屏文件名 SimpleDateFormat simpleDateFormat=new SimpleDateFormat("YY-MM-DD-HH-MM-SS"); //在获取外部存储的时候,一定注意添加权限,如果添加权限还不能成功,则手动在应用中开启权限。 String filePathName= Environment.getExternalStorageDirectory() "/" simpleDateFormat.format(new Date()) ".png"; //Find the topmost view in the current view hierarcht. View view=v.getRootView(); // Enable or disable drawing cache. view.setDrawingCacheEnabled(true); // Calling this method is equivalent to calling buildDrawingCache(false); // In order to force drawing cache to be buuild. view.buildDrawingCache(); //Calling this method is equivalent to calling getDrawingCache(false); //Return the Bitmap in which this view drawing is cached. Bitmap bitmap=view.getDrawingCache(); try{ System.out.println(filePathName); FileOutputStream fileOutputStream=new FileOutputStream(filePathName); //Write a compressed version of bitmap to specified outputStream. bitmap.compress(Bitmap.CompressFormat.PNG,100,fileOutputStream); Toast.makeText(this,"Cpature Succeed",Toast.LENGTH_SHORT).show(); }catch (Exception e){ e.printStackTrace(); Toast.makeText(this,"Cpature Failed",Toast.LENGTH_SHORT).show(); } } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // 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(); return true; } return super.onKeyDown(keyCode, event); } /** * 获取屏幕基本信息 */ private void getScreenBaseInfo() { //A structure describing general information about a display, such as its size, density, and font scaling. DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); mScreenWidth = metrics.widthPixels; mScreenHeight = metrics.heightPixels; mScreenDensity = metrics.densityDpi; } /** * 模拟HOME键返回桌面的功能 */ private void simulateHome() { //Intent.ACTION_MAIN,Activity Action: Start as a main entry point, does not expect to receive data. Intent intent = new Intent(Intent.ACTION_MAIN); //If set, this activity will become the start of a new task on this history stack. intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //This is the home activity, that is the first activity that is displayed when the device boots. intent.addCategory(Intent.CATEGORY_HOME); this.startActivity(intent); } }
好例子网口号:伸出你的我的手 — 分享!
小贴士
感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论