我在应用程序中添加了导航视图和抽屉布局。当我打开并关闭抽屉时，它会及时滞留。打开并慢慢关闭。我也在6.0上的4.4版上突出了这个问题，但不如4.4那么重要。
当我打开抽屉时，我在4.4设备上运行时，我注意到日志中的消息，在主线程上可能会做太多工作。
因此，我尝试评论除导航抽屉和选项菜单代码外的所有代码。因此，在那之后，我发现它运行良好。
是问题吗？还是某些内存问题可能存在？但是在较大的内存设备上，我也发现了问题。
我需要为其他代码创建另一个活动吗？这样的抽屉会更快地工作吗？
我还试图创建一个片段，并在主要活动的framelayout中替换了片段以分开代码。但这仍然滞后。
如果我创建新活动仍然需要该活动中的所有导航代码，那将是同一件事。
我没有得到问题。任何人都可以帮忙..谢谢..
这是代码：
public class MainActivity extends AppCompatActivity implements GetContactsAsyncTask.ContactGetCallBack,UpdateUserAsyncTask.UpdateUserCallBack {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
contactDb = new ContactTableHelper(MainActivity.this);
mDb = new UserTableHelper(MainActivity.this);
boolean result = Utility.checkAndRequestPermissions(MainActivity.this);
LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,
new IntentFilter(REGISTRATION_COMPLETE));
LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,
new IntentFilter(PUSH_NOTIFICATION));
NotificationUtils.clearNotifications(getApplicationContext());
sharedpreferences = getSharedPreferences("UserProfile", Context.MODE_PRIVATE);
mUserId = sharedpreferences.getString("userId", "");
firstTimeLogin = sharedpreferences.getBoolean("login", false);
refreshedToken = sharedpreferences.getString("deviceId", "");
parentLayout = (LinearLayout) findViewById(R.id.toolbar_container);
setupView();
mUser = new User();
url = sharedpreferences.getString("url", "");
contactList = new ArrayList<Contact>();
txtuserName = (TextView) findViewById(R.id.txtusername);
txtmobile = (TextView) findViewById(R.id.txtmobile);
profileImageView = (CircleImageView) findViewById(R.id.thumbnail);
if (profileImageView != null) {
profileImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
drawerLayout.closeDrawers();
Intent Intent = new Intent(MainActivity.this, ProfileActivity.class);
Intent.putExtra("user", mUser);
Intent.putExtra("url", url);
startActivity(Intent);
}
});
}
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
Bitmap bitmap = BitmapFactory.decodeFile(image.getPath(), bmOptions);
if (bitmap != null) {
profileImageView.setImageBitmap(bitmap);
} else {
profileImageView.setImageDrawable(ContextCompat.getDrawable(MainActivity.this, R.drawable.ic_account_circle_white_48dp));
}
ImageView sync = (ImageView) findViewById(R.id.sync);
sync.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
contactList.clear();
contactDb.deleteAllContacts();
GetContactsAsyncTask getContactsAsyncTask = new GetContactsAsyncTask(MainActivity.this, MainActivity.this, mUserId, MainActivity.this);
getContactsAsyncTask.execute(mUserId);
}
});
}
void setupView() {
File sd = Environment.getExternalStorageDirectory();
image = new File(sd + "/Profile", "Profile_Image.png");
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
navigationView = (NavigationView) findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
drawerLayout.closeDrawers();
menuItem.setChecked(true);
FragmentManager fragmentManager = getSupportFragmentManager();
switch (menuItem.getItemId()) {
case R.id.nav_menu_contacts:
fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();
break;
case R.id.nav_menu_settings:
Intent i = new Intent(MainActivity.this, PreferencesActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
break;
case R.id.nav_log_out:
SharedPreferences pref = getSharedPreferences("UserProfile", MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
editor.remove("UserUsername");
editor.remove("userId");
editor.remove("url");
editor.remove("login");
editor.remove("company");
editor.remove("emailId");
editor.remove("profileImage");
editor.remove("fullName");
editor.remove("homeAddress");
editor.remove("workAddress");
editor.remove("workPhone");
editor.remove("pass");
editor.remove("jobTitle");
editor.remove("mobileNo");
editor.commit();
mDb.deleteAllUsers();
contactDb.deleteAllContacts();
UpdateTokenAsyncTask updateTokenAsyncTask = new UpdateTokenAsyncTask(MainActivity.this, mUserId, "");
updateTokenAsyncTask.execute(mUserId, "");
finish();
i = new Intent(MainActivity.this, LoginActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
break;
case R.id.nav_invite:
i = new Intent(MainActivity.this, InviteContactsActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(i);
break;
}
return true;
}
});
Toolbar toolbar = (Toolbar) findViewById(R.id.main_toolbar);
TextView mTitle = (TextView) findViewById(R.id.toolbar_title);
final ImageView menu = (ImageView) findViewById(R.id.menu);
menu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
PopupMenu popup = new PopupMenu(MainActivity.this, menu);
popup.getMenuInflater().inflate(R.menu.main_pop_up_menu, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
if (item.getItemId() == R.id.pendingInvites) {
startActivity(new Intent(MainActivity.this, PendingInvitesActivity.class));
} else if (item.getItemId() == R.id.feedback) {
final MaterialDialog dialog = new MaterialDialog.Builder(MainActivity.this)
.title("Feedback")
.customView(R.layout.feedback_dialog, true).build();
positiveAction = dialog.getActionButton(DialogAction.POSITIVE);
edtName = (EditText) dialog.getCustomView().findViewById(R.id.editName);
edtEmailId = (EditText) dialog.getCustomView().findViewById(R.id.editTextEmailId);
edtComment = (EditText) dialog.getCustomView().findViewById(R.id.editTextComment);
buttonSave = (Button) dialog.getCustomView().findViewById(R.id.buttonSave);
buttonSave.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
View view1 = getCurrentFocus();
if (view1 != null) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view1.getWindowToken(), 0);
}
mName = String.valueOf(edtName.getText().toString());
mEmailId = String.valueOf(edtEmailId.getText().toString());
mComment = String.valueOf(edtComment.getText().toString());
if (mComment.equals("")) {
showAlert("Please enter comments.");
} else if (mEmailId.equals("")) {
showAlert("Please enter an email-id.");
} else {
if (!isValidEmail(mEmailId)) {
showAlert("Please enter valid email id.");
} else {
HashMap<String, String> params = new HashMap<String, String>();
params.put("name", mName);
params.put("email_id", mEmailId);
params.put("comment", mComment);
CreateFeedbackAsyncTask createFeedbackAsyncTask = new CreateFeedbackAsyncTask(MainActivity.this, MainActivity.this);
createFeedbackAsyncTask.execute(params);
dialog.dismiss();
}
}
}
});
edtName.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
positiveAction.setEnabled(s.toString().trim().length() > 0);
}
@Override
public void afterTextChanged(Editable s) {
View view = getCurrentFocus();
if (view != null) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
});
edtComment.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
positiveAction.setEnabled(s.toString().trim().length() > 0);
View view = getCurrentFocus();
if (view != null) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
edtEmailId.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
positiveAction.setEnabled(s.toString().trim().length() > 0);
View view = getCurrentFocus();
if (view != null) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
dialog.show();
positiveAction.setEnabled(false);
return true;
}
return true;
}
});
popup.show();//showing popup menu
}
});
if (toolbar != null) {
toolbar.setTitle("");
setSupportActionBar(toolbar);
}
if (toolbar != null) {
toolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
drawerLayout.openDrawer(GravityCompat.START);
}
});
}
}
@Override
public void doPostExecute(JSONArray response) throws JSONException {
contactListArray = response;
contactDb = new ContactTableHelper(MainActivity.this);
if (null == contactList) {
contactList = new ArrayList<Contact>();
}
for (int i = 0; i < contactListArray.length(); i++) {
JSONObject subObject1 = contactListArray.getJSONObject(i);
Contact contact = new Contact();
JSONObject subObject = subObject1;
String contactName = subObject.getString("user_name");
//name of the attribute in response
String pass = subObject.getString("password");
String contactId = subObject.getString("user_id");
String contactMobile = subObject.getString("mobile_no");
String contactEmailId = subObject.getString("email_id");
String contactProfile = subObject.getString("profile_image");
String fullName = subObject.getString("full_name");
String jobTitle = subObject.getString("job_title");
String homeAddress = subObject.getString("home_address");
String workPhone = subObject.getString("work_phone");
String workAddress = subObject.getString("work_address");
String company = subObject.getString("company");
contact.setmThumbnail(contactProfile);
contact.setmUserName(contactName);
contact.setmMobileNo(contactMobile);
contact.setmEmailId(contactEmailId);
contact.setmProfileImage(contactProfile);
contact.setContactId(contactId);
contact.setmHomeAddress(homeAddress);
contact.setmFullName(fullName);
contact.setmJobTitle(jobTitle);
contact.setmWorkAddress(workAddress);
contact.setmWorkPhone(workPhone);
contact.setmPass(pass);
contact.setmCompany(company);
contactList.add(contact);//adding string to arraylist
contactDb.addContact(new Contact(contactId, contactName, pass, contactMobile, contactEmailId, contactProfile, fullName, jobTitle, workAddress, workPhone, homeAddress, company));
}
adapter = new ContactAdapter(MainActivity.this, contactList);
recyclerView.setAdapter(adapter);
recyclerView.setHasFixedSize(true);
recyclerView.setItemViewCacheSize(20);
recyclerView.setDrawingCacheEnabled(true);
recyclerView.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);
}
@Override
public void onResume() {
super.onResume();
contactList.clear();
if (!firstTimeLogin) {
contactList.clear();
contactList = contactDb.getAllContacts();
mUser = mDb.getUser(mUserId);
txtuserName.setText(mUser.getmUserName());
txtmobile.setText(mUser.getmMobileNo());
} else {
new GetUserAsyncTask1(MainActivity.this,mUserId).execute(mUserId);
new GetContactsAsyncTask(this, MainActivity.this, mUserId, MainActivity.this).execute();
firstTimeLogin = false;
SharedPreferences.Editor editor = getSharedPreferences("UserProfile", MODE_PRIVATE).edit();
editor.putBoolean("login", firstTimeLogin);
editor.commit();
}
recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(MainActivity.this);
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));
recyclerView.setItemAnimator(new DefaultItemAnimator());
adapter = new ContactAdapter(MainActivity.this, contactList);
recyclerView.setAdapter(adapter);
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(MainActivity.this, recyclerView, new ClickListener() {
@Override
public void onClick(View view, int position) {
final Contact contact = contactList.get(position);
}
@Override
public void onLongClick(View view, int position) {
}
}));
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
switch (requestCode) {
case REQUEST_ID_MULTIPLE_PERMISSIONS: {
Map<String, Integer> perms = new HashMap<String, Integer>();
perms.put(Manifest.permission.WRITE_EXTERNAL_STORAGE, PackageManager.PERMISSION_GRANTED);
perms.put(Manifest.permission.CAMERA, PackageManager.PERMISSION_GRANTED);
perms.put(Manifest.permission.READ_CONTACTS, PackageManager.PERMISSION_GRANTED);
perms.put(Manifest.permission.SEND_SMS, PackageManager.PERMISSION_GRANTED);
for (int i = 0; i < permissions.length; i++)
perms.put(permissions[i], grantResults[i]);
if (perms.get(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
&& perms.get(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED
&& perms.get(Manifest.permission.SEND_SMS) == PackageManager.PERMISSION_GRANTED
&& perms.get(Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
} else {
showAlert("Some Permissions are Denied.");
}
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
@Override
public void doPostExecute(JSONObject response, Boolean update) throws JSONException {
}
}
主布局：
<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:layout_height="match_parent">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/container">
</FrameLayout>
<!-- Your normal content view -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id = "@+id/toolbar_container">
<!-- We use a Toolbar so that our drawer can be displayed
in front of the action bar -->
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/Contacts"
android:layout_gravity="center"
android:id="@+id/toolbar_title"
android:textSize="20sp"
android:textColor="#ffffff"
android:textStyle="bold"
android:textAlignment="center"
android:gravity="center_vertical|center|center_horizontal"
android:layout_toLeftOf="@+id/sync"
android:layout_toStartOf="@+id/sync"
android:layout_centerInParent="true"
android:layout_marginLeft="30dp"
android:layout_marginRight="10dp" />
<ImageView
android:layout_width="24dp"
android:layout_height="24dp"
android:background="@drawable/ic_refresh_white_24dp"
android:id="@+id/sync"
android:layout_gravity = "right"
android:layout_toStartOf="@+id/menu"
android:layout_toLeftOf="@+id/menu"
android:layout_centerVertical="true"
android:layout_alignParentRight="false"
android:layout_marginRight="10dp" />
<ImageView
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_gravity= "end"
android:layout_marginRight="10dp"
android:background="@drawable/ic_more_vert_white_36dp"
android:id="@+id/menu"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:layout_alignParentRight="true" />
</RelativeLayout>
</android.support.v7.widget.Toolbar>
<view
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
class="android.support.v7.widget.RecyclerView"
android:id="@+id/recycler_view"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true" />
<!-- The rest of your content view -->
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="?attr/colorPrimary"
app:headerLayout="@layout/drawer_header"
app:itemTextColor="@color/yourColor"
app:itemIconTint="@color/yourColor"
app:menu="@menu/nav_menu" >
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include
layout="@layout/drawer_header"
android:layout_width="match_parent"
android:layout_height="103dp" />
<ExpandableListView
android:id="@+id/elvGuideNavigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:groupIndicator="@null"
/>
</LinearLayout>
</android.support.design.widget.NavigationView>
进行JSON解析并将条目添加到DB中，也仅在后台线程中，仅将条目的阵列传递给主线程，这样您就可以减少主线程上的负载。
您可以尝试的另一件事是使HardWareAcceleration启用
绝对尝试在其他线程上移动任何数据库操作。解码该位图（）也很危险。
也许组织您的代码会有所帮助。