单击图像打开导航抽屉

Question

我有一个导航抽屉Activity。我只需单击操作栏中的主页按钮即可打开导航抽屉。

我想知道是否可以通过单击 ImageView 打开它，它会在片段中以及如何打开它。

谢谢。

===== 编辑：

我通过向导创建了 activity，所以我有 MainActivity、Placeholder Activity（用于内容）和 NavigationDrawerActivity（用于 actionBar 和抽屉）。

在 MainActivity 的 onCreate() 中，我有： setContentView(R.layout.activity_main);

                //Cria menu de navegação
                mNavigationDrawerFragment = (NavigationDrawerFragment)
            locationmanager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
                    getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
                mTitle = getTitle();
                mDrawerLayout= mNavigationDrawerFragment.getmDrawerLayout();

                // Configura menu de navegação
                mNavigationDrawerFragment.setUp(
                        R.id.navigation_drawer,
                        (DrawerLayout) findViewById(R.id.drawer_layout));

在占位符片段中我有：

 rootView = inflater.inflate(R.layout.fragment_main, container, false);
                ImageView imageView = (ImageView) rootView.findViewById(R.id.logoInicio);
                imageView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Log.i("Image click", "Clicked");
                        if (main.mNavigationDrawerFragment!=null){
                            if (!main.mNavigationDrawerFragment.isDrawerOpen()) {
                                main.mDrawerLayout.openDrawer(main.mydrawer);
                            }
                        }
                    }
                });

navigationDrawer 片段就像向导留下的一样。

这是我的堆栈跟踪：

FATAL EXCEPTION: main
    Process: workshopee.ct.ufrn.br.ssmonitor, PID: 15902
    java.lang.NullPointerException
            at workshopee.ct.ufrn.br.ssmonitor.PlaceholderFragment.onClick(PlaceholderFragment.java:144)
            at android.view.View.performClick(View.java:4456)
            at android.view.View$PerformClick.run(View.java:18462)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5086)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

是的，这是可能的。在按钮上单击使用： ((YourActivityWithDrawer)getActivity()).drawerLayout.openDrawer(your_drawer);

其中：

YourActivityWithDrawer 是你的 Activity 抽屉，
drawerLayout 是你的 DrawerLayout 对象
your_drawer 是实际的抽屉对象。

方法描述here

Answer 2

我在 MainActivity 中创建了这两个全局变量：

DrawerLayout drawerLayout;
int fragmentId;

MainActivity 的 onCreate() 看起来像这样：

setContentView(R.layout.activity_main);

                //Cria menu de navegação
                mNavigationDrawerFragment = (NavigationDrawerFragment)
                        getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
                mTitle = getTitle();

                fragmentId = R.id.navigation_drawer;
                drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
                // Configura menu de navegação
                mNavigationDrawerFragment.setUp(
                        fragmentId,
                        drawerLayout);

最后，我的占位符片段：

rootView = inflater.inflate(R.layout.fragment_main, container, false);
                ImageView imageView = (ImageView) rootView.findViewById(R.id.logoInicio);
                imageView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        if (main.mNavigationDrawerFragment!=null){
                            if (!main.mNavigationDrawerFragment.isDrawerOpen()) {
                                main.drawerLayout.openDrawer(getActivity().findViewById(main.fragmentId));
                            }
                        }
                    }
                });

单击图像打开导航抽屉

Open a navigation drawer by image click

android

navigation-drawer