java应用程序意图在启动时不为null
应用程序启动时的意图不为空。我不知道为什么
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener{
/**
* Views
*/
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
Bundle bundle = getIntent().getExtras();
if (bundle == null)
Log.d("***DEBUG****", "Intent was null");
else
Log.d("**** DEBUG ***", "Intent not null");
关闭并重新打开我的应用程序,使意图不为空: D/***调试****:意图不为空
# 1 楼答案
通过添加if(getIntent(),解决了我的问题。getStringExtra(“类型”)==null)