抽屉的打开和关闭非常缓慢且滞后。显示器中不显示相关错误。如果有人熟悉这个问题？可能出现什么错误？
提前致谢
这就是我做的
Recycler视图适配器
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
String[] titles;
TypedArray icons;
Context context;
// The default constructor to receive titles,icons and context from MainActivity.
public RecyclerViewAdapter(String[] titles, TypedArray icons, Context context) {
this.titles = titles;
this.icons = icons;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater layoutInflater = (LayoutInflater) parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (viewType == 1) {
View itemLayout = layoutInflater.inflate(R.layout.drawer_item_layout, null);
return new ViewHolder(itemLayout, viewType, context);
} else if (viewType == 0) {
View itemHeader = layoutInflater.inflate(R.layout.header_layout, null);
return new ViewHolder(itemHeader, viewType, context);
}
return null;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
if (position != 0) {
holder.navTitle.setText(titles[position - 1]);
holder.navIcon.setImageResource(icons.getResourceId(position - 1, -1));
}
}
@Override
public int getItemCount() {
return titles.length + 1;
}
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView navTitle;
ImageView navIcon;
Context context;
public ViewHolder(View drawerItem, int itemType, Context context) {
super(drawerItem);
this.context = context;
drawerItem.setOnClickListener(this);
if (itemType == 1) {
navTitle = (TextView) itemView.findViewById(R.id.tv_NavTitle);
navIcon = (ImageView) itemView.findViewById(R.id.iv_NavIcon);
}
}
/**
* This defines onClick for every item with respect to its position.
*/
@Override
public void onClick(View v) {
switch (getAdapterPosition()){
case 1:
Intent home= new Intent(context,HomeActivity.class);
home.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
context.startActivity(home);
break;
case 2:
// Intent profile= new Intent(context,HomeActivity.class);
// profile.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
// context.startActivity(profile);
break;
case 3:
// Intent accnt= new Intent(context,HomeActivity.class);
// accnt.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
// context.startActivity(accnt);
break;
case 4:
Intent cart= new Intent(context,MyCartLoginActivity.class);
cart.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
context.startActivity(cart);
break;
case 5:
// Intent phis= new Intent(context,HomeActivity.class);
// phis.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
// context.startActivity(phis);
// break;
case 6:
Intent logout= new Intent(context,LoginActivity.class);
logout.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK);
context.startActivity(logout);
break;
}
}
}
public int getItemViewType(int position) {
if (position == 0) return 0;
else return 1;
}
}
主要活动
public class MainActivity extends AppCompatActivity {
Toolbar toolbar;
DrawerLayout drawerLayout;
RecyclerView recyclerView;
String navTitles[];
TypedArray navIcons;
RecyclerView.Adapter recyclerViewAdapter;
ActionBarDrawerToggle drawerToggle;
FrameLayout frameLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);frameLayout = (FrameLayout)findViewById(R.id.containerView);
setupToolbar();
//Initialize Views
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
drawerLayout = (DrawerLayout) findViewById(R.id.drawerMainActivity);
// Setup Titles and Icons of Navigation Drawer
navTitles = getResources().getStringArray(R.array.navDrawerItems);
navIcons = getResources().obtainTypedArray(R.array.navDrawerIcons);
recyclerViewAdapter = new RecyclerViewAdapter(navTitles,navIcons,this);
recyclerView.setAdapter(recyclerViewAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
//recyclerView.setLayoutManager(new LinearLayoutManager(this));
// Finally setup ActionBarDrawerToggle
setupDrawerToggle();
}
void setupToolbar(){
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// toolbar.setNavigationIcon(R.drawable.ic_action_menu);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
void setupDrawerToggle(){
drawerToggle = new ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.app_name,R.string.app_name);
//This is necessary to change the icon of the Drawer Toggle upon state change.
drawerToggle.setDrawerIndicatorEnabled(false);
drawerToggle.setHomeAsUpIndicator(R.drawable.ic_action_menu);
drawerToggle.syncState();
}
}
标题布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorAccent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="25dp"
android:layout_marginTop="25dp">
<RelativeLayout
android:layout_width="90dp"
android:layout_height="90dp"
android:id="@+id/rlh"
android:layout_marginLeft="15dp"
android:background="@drawable/circ"
android:gravity="center">
<ImageView
android:id="@+id/icon"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_centerInParent="true"
android:scaleType="fitXY"
android:src="@drawable/logo5" />
</RelativeLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/rlh"
android:layout_toEndOf="@+id/rlh"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Nithin Kumar"
android:textStyle="bold"
android:textColor="#FFF"
android:id="@+id/uname"
android:textSize="17dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/uname"
android:layout_marginTop="2dp"
android:textStyle="bold"
android:text="+919876543210"
android:textColor="#FFF"
android:textSize="13dp" />
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
抽屉物品布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_marginTop="140dp"
android:layout_height="60dp">
<RelativeLayout
android:id="@+id/drawerItem"
android:layout_gravity="center_horizontal"
android:gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="40dp">
<ImageView
android:layout_marginLeft="45dp"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_gravity="center"
android:tint="#251e1e"
android:layout_centerVertical="true"
android:id="@+id/iv_NavIcon"/>
<de.morrox.fontinator.FontTextView
android:layout_toRightOf="@+id/iv_NavIcon"
app:font="Lato-Regular.ttf"
android:layout_gravity="center"
android:text="Claimed Offers"
android:layout_centerVertical="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:id="@+id/tv_NavTitle"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#251e1e"
android:textSize="16sp"
android:gravity="center"/>
</RelativeLayout>
</RelativeLayout>
主要活动布局
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawerMainActivity"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="@+id/toolbar"
layout="@layout/toolbar" />
<FrameLayout
android:layout_below="@+id/toolbar"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/containerView">
</FrameLayout>
</RelativeLayout>
<android.support.v7.widget.RecyclerView
android:layout_width="240dp"
android:layout_height="fill_parent"
android:id="@+id/recyclerView"
android:scrollbars="vertical"
android:background="#FFF"
android:layout_gravity="left"
/>
</android.support.v4.widget.DrawerLayout>