Media Recorder

SurfaceView - 카메라 관련 기능들은 SurfaceView로 구현 함

 

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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="녹화시작"/>
    
    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</LinearLayout>

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MainActivity.java

package com.example.videorecord;

import androidx.appcompat.app.AppCompatActivity;

import android.Manifest;
import android.hardware.Camera;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
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(permissionListener)
                .setRationaleMessage("녹화를 위하여 권한을 혀용해주세요")
                .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 view) {
                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); // 촬영 각도
                                mediaRecorder.setOutputFile("/sdcard/test.mp4");
                                mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
                                mediaRecorder.prepare();
                                mediaRecorder.start();
                                recording = true;
                            } catch (Exception e) {
                                e.printStackTrace();
                                mediaRecorder.release();
                            }
                        }
                    });
                }
            }
        });



    }

    PermissionListener permissionListener = 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 surfaceHolder) {

    }

    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;
    }

    // surfaceView를 선언했을때 surfaceView 처음으로 생성 됐을때 생명주기
    @Override
    public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i1, int i2) {
        refreshCamera(camera);
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder surfaceHolder) {

    }
}

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AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.videorecord">

    <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:requestLegacyExternalStorage="true"
        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>

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build.gradle (:app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "30.0.1"

    defaultConfig {
        applicationId "com.example.videorecord"
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'gun0912.ted:tedpermission:2.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

}