Andriod- 设置输出音频MediaRecorder

概述简单的录音功能，测试一下代码，直接贴：：：：packagecom.example.testbuttomtoolbar.testbuttomtoolbar;importandroid.Manifest;importandroid.app.Activity;importandroid.content.Intent;importandroid.content.pm.PackageManager;importandroid.media.MediaRecorder;importandroi

简单的录音功能，测试一下代码，直接贴：：：：


package com.example.testbuttomtoolbar.testbuttomtoolbar;

import androID.Manifest;
import androID.app.Activity;
import androID.content.Intent;
import androID.content.pm.PackageManager;
import androID.media.MediaRecorder;
import androID.os.Build;
import androID.os.Environment;
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 java.io.file;
import java.io.IOException;


public class MainActivity extends Activity {

    private button btnRecord=null;
    private button btnStop=null;
    private SurfaceVIEw mSurfaceVIEw=null;
    private SurfaceHolder mSurfaceHolder=null;
    private MediaRecorder recorder=null;

    private file myRecAudiofile=null;
    private file dir=null;

    @OverrIDe
    protected voID onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentVIEw(R.layout.activity_main);
        mSurfaceVIEw = (SurfaceVIEw) findVIEwByID(R.ID.surfacevIEw);
        mSurfaceHolder = mSurfaceVIEw.getHolder();
        mSurfaceHolder.setKeepScreenOn(true);
        mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        btnRecord=findVIEwByID(R.ID.record);
        btnStop=findVIEwByID(R.ID.stop);

        file defaultDir = Environment.getExternalStorageDirectory();
        String path = defaultDir.getabsolutePath()+file.separator+"V"+file.separator;
        //创建文件夹存放视频
        dir = new file(path);
        if(!dir.exists()){
            dir.mkdir();
        }

        if (Build.VERSION.SDK_INT >= 23) {
            int REQUEST_CODE_CONTACT = 101;
            String[] permissions = {Manifest.permission.RECORD_AUdio,
                    Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE};
            //验证是否许可权限
            for (String str : permissions) {
                if (this.checkSelfPermission(str) != PackageManager.PERMISSION_GRANTED) {
                    //申请权限
                    this.requestPermissions(permissions, REQUEST_CODE_CONTACT);
                    return;
                }
            }
        }

        recorder = new MediaRecorder();

        //开始录制视频
        btnRecord.setonClickListener(new VIEw.OnClickListener() {
            @OverrIDe
            public voID onClick(VIEw v) {
                recorder();
            }
        });

        //停止录制视频
        btnStop.setonClickListener(new VIEw.OnClickListener() {
            @OverrIDe
            public voID onClick(VIEw v) {
                recorder.stop();
                recorder.reset();
                recorder.release();
                recorder=null;
            }
        });

    }

    public voID recorder() {
        try {

            recorder = new MediaRecorder();

            recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
            recorder.setoutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
            recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

            recorder.setoutputfile("/mnt/sdcard/luyin2.3gp");

            recorder.prepare();

            recorder.start();

        } catch (IOException e) {
            e.printstacktrace();
        }
    }
}

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