Question

我没有使用与线程相关的任何内容，但模拟器一直在说：

GO

有一种方法可以调试更多，所以要看看为什么会发生这种错误？

MainActivity：

12-15 14:19:22.807 20983-21204/edu.fontys.stayconnected E/AbstractTracker: Can't create handler inside thread that has not called Looper.prepare()

OptionFragmentAdapter：

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
        final OptionFragmentAdapter adapter = new OptionFragmentAdapter(getSupportFragmentManager());

        if (viewPager != null) {
            SlidingTabLayout slidingTabLayout = (SlidingTabLayout) findViewById(R.id.sliding_tab_layout);

            slidingTabLayout.setCustomTabColorizer(new SlidingTabLayout.TabColorizer() {
                @Override
                public int getIndicatorColor(int position) {
                    return getResources().getColor(R.color.colorAccent);
                }
            });
            slidingTabLayout.setDistributeEvenly(true);

            viewPager.setAdapter(adapter);

            slidingTabLayout.setViewPager(viewPager);
        }

        if (!NotificationManagerCompat.getEnabledListenerPackages(this).contains(getPackageName())) {
            new AlertDialog.Builder(this)
                    .setTitle(getString(R.string.dialog_notification_title))
                    .setMessage(R.string.dialog_notification_message)
                    .setPositiveButton(R.string.dialog_notification_settings, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            startActivity(new Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS));
                        }
                    })
                    .setNegativeButton(R.string.dialog_notification_close_app, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            finish();
                        }
                    })
                    .show();
        }
    }
}

slidingTabLayout来自谷歌：https://github.com/google/iosched/blob/master/android/src/main/java/com/google/samples/apps/iosched/ui/widget/SlidingTabLayout.java

AbstractTracker说没有调用Looper.prepare（）

0 个答案: