80,348
社区成员
发帖
与我相关
我的任务
分享
import android.Manifest;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private Button button1;
private Camera camera;
public static final String TAG = "MainActivity";
private static final int REQUEST_CAMERA = 0;
if (ContextCompat.checkSelfPermission(this,Manifest.permission.CAMERA)!= PackageManager.PERMISSION_GRANTE D) {
// Camera permission has not been granted.
} else {
// Camera permissions is already available, show the camera preview.
Log.i(TAG,
"CAMERA permission has already been granted. Displaying camera preview.");
}