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Native_CameraFragment.java
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Native_CameraFragment.java
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/*
* Copyright 2014-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.devicefarm.android.referenceapp.Fragments.Tabs.Native;
import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import com.amazonaws.devicefarm.android.referenceapp.R;
import butterknife.ButterKnife;
import butterknife.InjectView;
/**
* A fragment that demos a camera preview
*/
public class Native_CameraFragment extends Fragment implements SurfaceHolder.Callback{
public final String CAMERA_FRAGMENT_TAG = "CAMERA_FRAGMENT";
Camera camera;
@InjectView(R.id.camera_surface_view)
SurfaceView surfaceView;
private SurfaceHolder surfaceHolder;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.native_camera_fragment, container, false);
ButterKnife.inject(this, view);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
return view;
}
private boolean hasCamera(Context ctx){
return ctx.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
camera = Camera.open();
camera.setDisplayOrientation(90);
Camera.Parameters parameters = camera.getParameters();
camera.setParameters(parameters);
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
surfaceView.setContentDescription(getString(R.string.camera_preview_on));
} catch (Exception e) {
Log.e(CAMERA_FRAGMENT_TAG, String.valueOf(e));
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
refreshCamera();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
try {
camera.stopPreview();
camera.release();
camera = null;
} catch (Exception e) {
Log.e(CAMERA_FRAGMENT_TAG, String.valueOf(e));
}
}
private void refreshCamera () {
if (surfaceHolder.getSurface() == null) {
return;
}
try {
camera.stopPreview();
} catch (Exception e) {
Log.e(CAMERA_FRAGMENT_TAG, String.valueOf(e));
}
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
} catch (Exception e) {
Log.e(CAMERA_FRAGMENT_TAG, String.valueOf(e));
}
}
}