#18 안드로이드 스튜디오 동영상 녹화 (MediaRecorder) 예제 [ 홍드로이드 ]

<build.gradle>

apply plugin: 'com.android.application'
 
android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.videorecordexample"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
 
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'gun0912.ted:tedpermission:2.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
 

<AndroidManifest.xml>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.videorecordexample">
 
 
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
 
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

<activity_main.xml>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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">
 
    <Button
        android:id="@+id/btn_record"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="녹화 시작" />
 
    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
 
</LinearLayout>

<MainActivity.java>

package com.example.videorecordexample;
 
import android.Manifest;
import android.hardware.Camera;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
 
import com.gun0912.tedpermission.PermissionListener;
import com.gun0912.tedpermission.TedPermission;
 
import java.util.ArrayList;
 
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
 
    private Camera camera;
    private MediaRecorder mediaRecorder;
    private Button btn_record;
    private SurfaceView surfaceView;
    private SurfaceHolder surfaceHolder;
    private boolean recording = false;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        TedPermission.with(this)
                .setPermissionListener(permission)
                .setRationaleMessage("녹화를 위하여 권한을 허용해주세요.")
                .setDeniedMessage("권한이 거부되었습니다. 설정 > 권한에서 허용해주세요.")
                .setPermissions(Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO)
                .check();
 
        btn_record = (Button)findViewById(R.id.btn_record);
        btn_record.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (recording) {
                    mediaRecorder.stop();
                    mediaRecorder.release();
                    camera.lock();
                    recording = false;
                } else {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Toast.makeText(MainActivity.this, "녹화가 시작되었습니다.", Toast.LENGTH_SHORT).show();
                            try {
                                mediaRecorder = new MediaRecorder();
                                camera.unlock();
                                mediaRecorder.setCamera(camera);
                                mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
                                mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
                                mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_720P));
                                mediaRecorder.setOrientationHint(90);
                                mediaRecorder.setOutputFile("/sdcard/test.mp4");
                                mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
                                mediaRecorder.prepare();
                                mediaRecorder.start();
                                recording = true;
                            } catch (Exception e) {
                                e.printStackTrace();
                                mediaRecorder.release();
                            }
                        }
                    });
                }
            }
        });
 
 
 
 
 
    }
 
    PermissionListener permission = new PermissionListener() {
        @Override
        public void onPermissionGranted() {
            Toast.makeText(MainActivity.this, "권한 허가", Toast.LENGTH_SHORT).show();
 
            camera = Camera.open();
            camera.setDisplayOrientation(90);
            surfaceView = (SurfaceView)findViewById(R.id.surfaceView);
            surfaceHolder = surfaceView.getHolder();
            surfaceHolder.addCallback(MainActivity.this);
            surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
 
        }
 
        @Override
        public void onPermissionDenied(ArrayList<String> deniedPermissions) {
            Toast.makeText(MainActivity.this, "권한 거부", Toast.LENGTH_SHORT).show();
        }
    };
 
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
 
    }
 
    private void refreshCamera(Camera camera) {
        if (surfaceHolder.getSurface() == null) {
            return;
        }
 
        try {
            camera.stopPreview();
        } catch (Exception e) {
            e.printStackTrace();
        }
 
        setCamera(camera);
    }
 
    private void setCamera(Camera cam) {
 
        camera = cam;
 
    }
 
 
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        refreshCamera(camera);
    }
 
    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
 
    }
}