检查camera是否存在

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

/**
 * This activity checks if device has camera
 * @author FaYnaSoft Labs
 *
 */
public class Main extends Activity {

 private static String APP_TAG = "tag";
 private android.hardware.Camera camera;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  try {
   camera = android.hardware.Camera.open();
  } catch (Exception e) {
   Log.e(APP_TAG, e.getMessage());
  }
 }
}

 

<uses-feature android:name="android.hardware.camera" android:required="false"/>

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