Android实现录制视频

先展示下效果图：
1.这个是调到系统录制视频界面

VideoActivity.java

package com.example.videodisplay;import android.content.Intent;import android.provider.MediaStore;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class VideoActivity extends AppCompatActivity {    private Button bt_1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_video);        bt_1 = (Button) findViewById(R.id.bt_1);        bt_1.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Intent intent =  new Intent(MediaStore.ACTION_VIDEO_CAPTURE);                intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY,  1);                intent.putExtra(MediaStore.EXTRA_DURATION_LIMIT,  61);                //这里1024 * 1024 * 100是指限制100M,当达到是会自动停止录制                intent.putExtra(MediaStore.EXTRA_SIZE_LIMIT,  1024 * 1024 * 100);                startActivityForResult(intent,  11);            }        });    }}

activity_video.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_video"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:orientation="vertical"    tools:context="com.example.videodisplay.VideoActivity">    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="跳转至录制视频"        android:id="@+id/bt_1"        />LinearLayout>

2.这个是使用mediaRecorder实现的

Video2Activity .java

package com.example.videodisplay;import android.media.MediaPlayer;import android.media.MediaRecorder;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.SurfaceView;import android.view.View;import java.io.IOException;public class Video2Activity extends AppCompatActivity {    private SurfaceView sfv;    private MediaRecorder mediaRecorder;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_video2);        sfv = (SurfaceView) findViewById(R.id.sv_media_recoder_surface);        //实例化MediaRecorder        mediaRecorder = new MediaRecorder();    }    public void start(View view){        mediaRecorder.reset();        //设置来源        mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);        //设置格式        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);        //设置编码格式        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);        mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);        //设置保存的路径         mediaRecorder.setOutputFile("mnt/sdcard//360Video/Video_"+System.currentTimeMillis()+".mp4");         mediaRecorder.setPreviewDisplay(sfv.getHolder().getSurface());        try {            mediaRecorder.prepare();            mediaRecorder.start();        } catch (IOException e) {            e.printStackTrace();        }    }    public void stop(View view){        mediaRecorder.stop();    }}

activity_video2.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:orientation="vertical"    tools:context="com.example.videodisplay.Video2Activity">    <SurfaceView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/sv_media_recoder_surface"        />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        >        <Button            android:layout_width="0dp"            android:layout_height="wrap_content"            android:text="开始"            android:onClick="start"            android:layout_weight="1"            />        <Button            android:layout_width="0dp"            android:layout_height="wrap_content"            android:text="停止"            android:onClick="stop"            android:layout_weight="1"            />    LinearLayout>RelativeLayout>

权限：

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />    <uses-permission android:name="android.permission.RECORD_AUDIO" />    <uses-permission android:name="android.permission.CAMERA" />    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

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