我创建了具有摄像头功能的系统。该相机将拍摄照片并将其保存到数据库。如果我想使用摄像头功能,它将弹出一条消息,允许应用程序使用或不使用摄像头。如果按“允许”,则可以从相机拍摄照片。但是当我按“拒绝”时,如果我按回相机按钮,则该应用程序将停止运行。
因此,我要使许可摄像机自动被允许,这意味着,如果用户按下摄像机按钮,则没有弹出消息来选择允许或拒绝。有谁想知道如何解决?
下面是我当前的相机代码
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_task_update_before);
EnableRuntimePermission();
btnCameraBefore.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 7);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 7 && resultCode == RESULT_OK) {
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
imgAttachBefore.setImageBitmap(bitmap);
photoBefore();
}
}
public void EnableRuntimePermission(){
if (ActivityCompat.shouldShowRequestPermissionRationale(TaskUpdateBefore.this,
Manifest.permission.CAMERA))
{
Toast.makeText(TaskUpdateBefore.this,"CAMERA permission allows us to Access CAMERA app", Toast.LENGTH_LONG).show();
} else {
ActivityCompat.requestPermissions(TaskUpdateBefore.this,new String[]{
Manifest.permission.CAMERA}, RequestPermissionCode);
}
}
@Override
public void onRequestPermissionsResult(int RC, String per[], int[] PResult) {
switch (RC) {
case RequestPermissionCode:
if (PResult.length > 0 && PResult[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(TaskUpdateBefore.this,"Permission Granted, Now your application can access CAMERA.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(TaskUpdateBefore.this,"Permission Canceled, Now your application cannot access CAMERA.", Toast.LENGTH_LONG).show();
}
break;
}
}
一种简化整个过程的解决方案可能是使用一个名为EasyPermissions的库