视频刻录代码MediaRecorder
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1. 在清单文件中添加权限并设置启动横屏
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
2.布局
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<SurfaceView
android:id="@+id/surfaceView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/layout"
android:visibility="gone"
>
<Button
android:id="@+id/backbut"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/backbut"
android:layout_toLeftOf="@+id/recodebut"
android:layout_alignParentBottom="true"
android:onClick="myClick1"
/>
<Button
android:id="@+id/recodebut"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/recode"
android:layout_toLeftOf="@+id/shopbut"
android:layout_alignParentBottom="true"
android:onClick="myClick"
/>
<Button
android:id="@+id/shopbut"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/shop"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="true"
android:onClick="myClick"
android:enabled="false"
/>
</RelativeLayout>
</FrameLayout>
3.
package com.example.reocde;
import java.io.File;
import java.io.IOException;
import android.media.MediaRecorder;
import android.media.MediaRecorder.OnInfoListener;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.RelativeLayout;
public class MainActivity extends Activity {
private SurfaceView surfaceView;
private RelativeLayout layout;
private Button recode,shop;
private MediaRecorder mediaRecorder;
private File file;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
surfaceView=(SurfaceView) findViewById(R.id.surfaceView);
surfaceView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
surfaceView.getHolder().setFixedSize(180, 160);
surfaceView.getHolder().setKeepScreenOn(true);
layout=(RelativeLayout) findViewById(R.id.layout);
recode=(Button) findViewById(R.id.recodebut);
shop = (Button) findViewById(R.id.shopbut);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction()==MotionEvent.ACTION_DOWN){
layout.setVisibility(ViewGroup.VISIBLE);
}
return true;
}
public void myClick1(View view){
android.os.Process.killProcess(android.os.Process.myPid());
}
public void myClick(View view){
switch(view.getId()){
case R.id.recodebut:
try{
file = new File(Environment.getExternalStorageDirectory(),System.currentTimeMillis()+".mp4");
mediaRecorder=new MediaRecorder();
recorder(file);
recode.setEnabled(false);
shop.setEnabled(true);
}catch(Exception e){
e.printStackTrace();
}
break;
case R.id.shopbut:
if(mediaRecorder!=null){
mediaRecorder.stop();
mediaRecorder.release();
mediaRecorder=null;
}
recode.setEnabled(true);
shop.setEnabled(false);
break;
}
}
private void recorder(File file) throws IOException {
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置声音由麦克风刻录
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//设置图像由摄像头刻录
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//视频输出格式
mediaRecorder.setVideoSize(320, 240);
mediaRecorder.setVideoFrameRate(5);//设置一秒刻录多少帧
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置声音编码
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//设置图像编码
mediaRecorder.setOutputFile(file.getAbsolutePath());//输出位置
mediaRecorder.setPreviewDisplay(surfaceView.getHolder().getSurface());//设置输出
mediaRecorder.prepare();
mediaRecorder.start();
}
}
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