Camera preview both front and back

Idle to have nothing to write, simple demo, the shortcomings please forgive me.

PS: Some phones do not support both front and rear cameras.

Add Permissions:

<uses-permission android:name= "Android.permission.INTERNET"/>
<uses-feature android:name= "Android.hardware.camera"/>
<uses-permission android:name= "Android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name= "Android.permission.RECORD_AUDIO"/>
<uses-permission android:name= "Android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name= "Android.permission.STORAGE"/>
<uses-permission android:name= "Android.permission.CAMERA"/>
<uses-feature android:name= "Android.hardware.microphone"/>

Mainactivity.java

public class Mainactivity extends Activity implements Onerrorlistener, Oninfolistener {
Private Surfaceview Sfv1;
Private Surfaceview Sfv2;
Private Button btn;
Private Button btn1;
Private Camera Mcamera = null;
Private Surfaceholder Msurfaceholder;
Private Surfaceholder MSurfaceHolder1;

Private Boolean bool;

@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Requestwindowfeature (Window.feature_no_title);
Setcontentview (R.layout.activity_main);

This.mcontext = Super.getbasecontext ();

Sfv1 = (Surfaceview) Findviewbyid (R.ID.SFV1);
Sfv2 = (Surfaceview) Findviewbyid (R.ID.SFV2);
BTN = (Button) Findviewbyid (R.ID.BTN);
BTN1 = (Button) Findviewbyid (R.ID.BTN1);

This.msurfaceholder = This.sfv1.getHolder ();
This.mSurfaceHolder.addCallback (New Surfaceholder.callback () {

@Override
public void surfacedestroyed (Surfaceholder arg0) {
TODO auto-generated Method Stub
}

@Override
public void surfacecreated (Surfaceholder arg0) {
TODO auto-generated Method Stub
Camera Mcamera = camera.open (0);
Mcamera.setdisplayorientation (90);
try {
Mcamera.setpreviewdisplay (Msurfaceholder);
Mcamera.startpreview ();
Return
} catch (IOException localioexception) {
Localioexception.printstacktrace ();
}
}

@Override
public void surfacechanged (Surfaceholder arg0, int arg1, int arg2,
int Arg3) {
TODO auto-generated Method Stub
}
});
This.mSurfaceHolder.setType (3);

This.msurfaceholder1 = This.sfv2.getHolder ();
This.mSurfaceHolder1.addCallback (New Surfaceholder.callback () {

@Override
public void surfacedestroyed (Surfaceholder arg0) {
TODO auto-generated Method Stub
}

@Override
public void surfacecreated (Surfaceholder arg0) {
TODO auto-generated Method Stub
Camera Mcamera = Camera.open (1);
Mcamera.setdisplayorientation (90);
try {
Mcamera.setpreviewdisplay (MSurfaceHolder1);
Mcamera.startpreview ();
Return
} catch (IOException localioexception) {
Localioexception.printstacktrace ();
}
}

@Override
public void surfacechanged (Surfaceholder arg0, int arg1, int arg2,
int Arg3) {
TODO auto-generated Method Stub
}
});
This.mSurfaceHolder1.setType (3);

LOG.D ("Lyb", "btn onclick");
Btn.setonclicklistener (New Onclicklistener () {
@Override
public void OnClick (View arg0) {
Startvideorecording ();
}

});

Btn1.setonclicklistener (New Button.onclicklistener () {
@Override
public void OnClick (View v) {

Stopvideorecording ();

});

}

Activity_main.xml

<linearlayout 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:orientation= "Vertical" >

<surfaceview
Android:id= "@+id/sfv1"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:layout_weight= "1"/>

<surfaceview
Android:id= "@+id/sfv2"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:layout_weight= "1"/>

<linearlayout
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:orientation= "Horizontal" >

<button
Android:id= "@+id/btn"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:layout_weight= "1"
android:text= "Start"/>

<button
Android:id= "@+id/btn1"
Android:layout_width= "Match_parent"
android:layout_height= "Wrap_content"
android:layout_weight= "1"
android:text= "Stop"/>
</LinearLayout>

</LinearLayout>

As for the follow-up camera at the same time photo video How to achieve, welcome to share communication.

Camera preview both front and back