- 首先,需要确保Android Studio中已安装GoogleApi的模拟器。
- 确保是在Android Studio AVD Manager中创建的Android TV模拟器,它将自动集成相机。
- 确定AndroidManifest.xml文件中是否添加了以下权限:
- 在Activity中,确保已添加以下两个权限以使用相机(此处仅为示例代码):
private static final int REQUEST_CAMERA_PERMISSION_RESULT = 0;
private void requestCameraPermission() {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.CAMERA)) {
new AlertDialog.Builder(this)
.setTitle("Camera permission needed")
.setMessage("This app needs the Camera permission, please accept to use camera features.")
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
ActivityCompat.requestPermissions(MainActivity.this, new String[] {Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION_RESULT);
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
})
.create()
.show();
} else {
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION_RESULT);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if(requestCode == REQUEST_CAMERA_PERMISSION_RESULT) {
if(grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getApplicationContext(),
"Capture app won't work without camera services", Toast.LENGTH_SHORT).show();
}
}
}
- 在使用相机的Activity上注册对应的Permissions,以确保相机权限已被授予:
@Override
protected void onCreate(Bundle