当我点击里面的项目时,ONNavigationItemSelectedListener 没有被触发
NavigationItemSelectedListener cannot triggered when i clicked the item inside
我有导航抽屉,上面有项目。但是当我点击时,没有任何反应。这段代码有什么问题?
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.navi_1:
Intent intent = new Intent(BaseOrderActivity.this,BaseOrderActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
return true;
case R.id.navi_2:
Intent intent2 = new Intent(BaseOrderActivity.this,MappingProductRecycler.class);
intent2.putExtra("dataDealerCode",dataorderCode);
startActivity(intent2);
finish();
return true;
case R.id.navi_3:
Intent intent3 = new Intent(BaseOrderActivity.this,UpdateProductActivity.class);
intent3.putExtra("dataDealerCode",dataorderCode);
startActivity(intent3);
finish();
return true;
case R.id.navi_4:
return true;
}
//drawerLayout.closeDrawers();
return true;
}
});
当我在 NavigationItemSelected 上放置断点时,它不会在断点处停止,所以我无法根据我选择的启动另一个 activity。为什么?
这是我的布局:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent">
<FrameLayout
android:animateLayoutChanges="true"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity"
/>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/navigation"/>
<RelativeLayout
android:id="@+id/main_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/tab_layout"
android:layout_y="50dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
我的布局有什么问题?
改用此代码
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
Intent intent;
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.navi_1:
intent= new Intent(BaseOrderActivity.this,BaseOrderActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_2:
intent = new Intent(BaseOrderActivity.this,MappingProductRecycler.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_3:
intent = new Intent(BaseOrderActivity.this,UpdateProductActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_4:
break;
}
//drawerLayout.closeDrawers();
return true;
}
});
当您必须使用 switch
语句时,应在每个 case
中使用 break
。但是现在你在内部案例块
中使用return
您应该按照此步骤进行操作...
在你的 BaseOrderActivity
中实现 navigationView linstner 就像 BaseOrderActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener
在 menu.xml
中创建菜单
在 Oncreate
中初始化 NavigationView
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
终于使用这个覆盖方法
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_activity, menu);
return true;
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
Intent intent = null;
switch (id) {
case R.id.navi_1:
intent = new Intent(this,BaseOrderActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
break;
case R.id.navi_2:
intent = new Intent(this,MappingProductRecycler.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
break;
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
注意:一旦你使用 finish 然后你当前的 Activity/Context 将得到 Stop/Terminate,所以如果你使用安全的方式
希望对你有所帮助..
既然您提到您的导航项选择似乎不起作用,以下是可能的故障排除步骤:
检查导航视图是否正确初始化。
mNavigationView = (NavigationView) findViewById(R.id.navigation); //navigation is the id of the xml for your navigation view.
检查开关盒中的 ID。 R.id.navi_1:
等(navi_1, etc.
)确实有效。
编辑:
您的抽屉布局中应该只有 2 个视图 (child)。第一个 child 是抽屉关闭时显示的,第二个是抽屉打开时显示的。
请参阅下面的示例 xml。
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
// this is the main screen, shown when the drawer is CLOSED
// 1st VIEW
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
layout="@layout/toolbar"/>
<ListView
android:id="@+id/list_view_home_users"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
// This view is shown when drawer is OPEN
// 2nd View
<android.support.design.widget.NavigationView
android:id="@+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header_layout"
app:itemTextAppearance="@style/TextAppearance.Design.Snackbar.Message"
app:menu="@menu/my_navigation_items" />
</android.support.v4.widget.DrawerLayout>
编辑 2:
在您的情况下,您可以将相对布局设置为第一个视图。
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent">
<RelativeLayout
android:id="@+id/main_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/tab_layout"
android:layout_y="50dp" />
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/navigation"/>
</android.support.v4.widget.DrawerLayout>
改用此代码
int ids=menuItem.getItemId();
switch (ids) {
case R.id.itemID:
//Your Code
break
default:
break;
}
drawerLayout.closeDrawers();
return true;
我有导航抽屉,上面有项目。但是当我点击时,没有任何反应。这段代码有什么问题?
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.navi_1:
Intent intent = new Intent(BaseOrderActivity.this,BaseOrderActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
return true;
case R.id.navi_2:
Intent intent2 = new Intent(BaseOrderActivity.this,MappingProductRecycler.class);
intent2.putExtra("dataDealerCode",dataorderCode);
startActivity(intent2);
finish();
return true;
case R.id.navi_3:
Intent intent3 = new Intent(BaseOrderActivity.this,UpdateProductActivity.class);
intent3.putExtra("dataDealerCode",dataorderCode);
startActivity(intent3);
finish();
return true;
case R.id.navi_4:
return true;
}
//drawerLayout.closeDrawers();
return true;
}
});
当我在 NavigationItemSelected 上放置断点时,它不会在断点处停止,所以我无法根据我选择的启动另一个 activity。为什么?
这是我的布局:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent">
<FrameLayout
android:animateLayoutChanges="true"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity"
/>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/navigation"/>
<RelativeLayout
android:id="@+id/main_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/tab_layout"
android:layout_y="50dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
我的布局有什么问题?
改用此代码
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
Intent intent;
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.navi_1:
intent= new Intent(BaseOrderActivity.this,BaseOrderActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_2:
intent = new Intent(BaseOrderActivity.this,MappingProductRecycler.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_3:
intent = new Intent(BaseOrderActivity.this,UpdateProductActivity.class);
intent.putExtra("dataDealerCode",dataorderCode);
startActivity(intent);
finish();
break;
case R.id.navi_4:
break;
}
//drawerLayout.closeDrawers();
return true;
}
});
当您必须使用 switch
语句时,应在每个 case
中使用 break
。但是现在你在内部案例块
您应该按照此步骤进行操作...
在你的
BaseOrderActivity
中实现 navigationView linstner 就像BaseOrderActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener
在 menu.xml
中创建菜单
在
中初始化 NavigationViewOncreate
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this);
终于使用这个覆盖方法
@Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main_activity, menu); return true; } @SuppressWarnings("StatementWithEmptyBody") @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); Intent intent = null; switch (id) { case R.id.navi_1: intent = new Intent(this,BaseOrderActivity.class); intent.putExtra("dataDealerCode",dataorderCode); startActivity(intent); break; case R.id.navi_2: intent = new Intent(this,MappingProductRecycler.class); intent.putExtra("dataDealerCode",dataorderCode); startActivity(intent); break; } DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; }
注意:一旦你使用 finish 然后你当前的 Activity/Context 将得到 Stop/Terminate,所以如果你使用安全的方式
希望对你有所帮助..
既然您提到您的导航项选择似乎不起作用,以下是可能的故障排除步骤:
检查导航视图是否正确初始化。
mNavigationView = (NavigationView) findViewById(R.id.navigation); //navigation is the id of the xml for your navigation view.
检查开关盒中的 ID。
R.id.navi_1:
等(navi_1, etc.
)确实有效。
编辑:
您的抽屉布局中应该只有 2 个视图 (child)。第一个 child 是抽屉关闭时显示的,第二个是抽屉打开时显示的。
请参阅下面的示例 xml。
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
// this is the main screen, shown when the drawer is CLOSED
// 1st VIEW
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
layout="@layout/toolbar"/>
<ListView
android:id="@+id/list_view_home_users"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
// This view is shown when drawer is OPEN
// 2nd View
<android.support.design.widget.NavigationView
android:id="@+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/nav_header_layout"
app:itemTextAppearance="@style/TextAppearance.Design.Snackbar.Message"
app:menu="@menu/my_navigation_items" />
</android.support.v4.widget.DrawerLayout>
编辑 2: 在您的情况下,您可以将相对布局设置为第一个视图。
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:layout_height="match_parent">
<RelativeLayout
android:id="@+id/main_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".BaseOrderActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="6dp"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/tab_layout"
android:layout_y="50dp" />
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/navigation"/>
</android.support.v4.widget.DrawerLayout>
改用此代码
int ids=menuItem.getItemId();
switch (ids) {
case R.id.itemID:
//Your Code
break
default:
break;
}
drawerLayout.closeDrawers();
return true;