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我知道有类似的题目问题，但我的略有不同.....什么是导致“主线程工作太多”的警告？
我有一个包含一个活动和一些片段的应用程序。当应用程序启动时，它会检查用户是否已登录。如果是，则会启动主页片段。针对此问题，我只弹出一个Toast消息，表示登录，而不是任何片段正在推出。该活动还包含一个DrawerLayout，其适当的覆盖方法以及一些其他片段的接口方法，这些片段告诉主要活动要做什么。
我没有检索任何沉重的数据或进行任何URL连接，但出于某种原因，我总是收到“跳过的帧/主线程上的太多工作”警告。
我主要熟悉ASyncTask，当我需要检索JSON文件，连接到数据库等。在这种情况下，我不确定如何解决我的问题。主要活动中有很多代码。我只是不确定最适合放置在单独的线程中，我应该怎么做？任何建议将不胜感激。
这里是我的主要活动：
public class HomePage extends AppCompatActivity implements HomeFragment.OnClickedListener, CalendarFragment.OnClickedCalListener {
private FragmentTransaction ft;
private Fragment fragment;
private DrawerLayout drawerLayout;
private ListView drawerList;
private ActionBarDrawerToggle drawerToggle;
String[] drawerListItems;
private static final String PREFS_LOGGED_IN = "AreYouLoggedInFile";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_page);
String appVersion = "v1";
Backendless.initApp(this, "blah blah", "blah", appVersion);
if (findViewById(R.id.fragment_container) != null) {
if (savedInstanceState != null) {
}else{
Toast.makeText(getApplicationContext, "Logged In", Toast.LENGTH).show();
}
}
Toolbar myToolbar = (Toolbar) findViewById(R.id.toolBarHome);
drawerLayout = (DrawerLayout)findViewById(R.id.homePageDrawer);
drawerList = (ListView)findViewById(R.id.homePageList);
drawerListItems = getResources().getStringArray(R.array.activities);
drawerList.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,drawerListItems));
drawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case 0: {
fragment = new CalendarFragment();
break;
}
case 1: {
fragment = new ContactsFragments();
break;
}
case 2: {
fragment = new HomeFragment();
break;
}
case 3:{
fragment = new ActivityFragment();
break;
}
case 4:{
Toast.makeText(getApplicationContext(), "Logged Out!", Toast.LENGTH_LONG).show();
Intent i = new Intent(HomePage.this, MainLoginActivity.class);
SharedPreferences myPrefs = getSharedPreferences(PREFS_LOGGED_IN, 0);
SharedPreferences.Editor editor = myPrefs.edit();
editor.putBoolean("isLoggedIn", false);
editor.commit();
startActivity(i);
finish();
break;
}
}
ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_container,fragment);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
drawerLayout.closeDrawer(drawerList);
}
});
drawerToggle = new ActionBarDrawerToggle(this,drawerLayout,myToolbar,R.string.drawer_open,R.string.drawer_close)
{
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
invalidateOptionsMenu();
syncState();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
invalidateOptionsMenu();
syncState();
}
};
drawerLayout.setDrawerListener(drawerToggle);
setSupportActionBar(myToolbar);
myToolbar.setLogo(R.drawable.happy_dog_icon);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeButtonEnabled(true);
drawerToggle.syncState();
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case android.R.id.home:{
if (drawerLayout.isDrawerOpen(drawerList)){
drawerLayout.closeDrawer(drawerList);
}else{
drawerLayout.openDrawer(drawerList);
}
return true;
}case R.id.infoActionBar:{
Toast.makeText(getApplicationContext(), "Hey", Toast.LENGTH_LONG).show();
}
default:return super.onOptionsItemSelected(item);
}
}
@Override
public void onBackPressed() {
if (getFragmentManager().getBackStackEntryCount() > 0){
getFragmentManager().popBackStack();
} else {
super.onBackPressed();
}
}
@Override
public void buttonClicked(View v) {
switch (v.getId()){
case R.id.logoutButton:{
Backendless.UserService.logout(new AsyncCallback<Void>() {
public void handleResponse(Void response) {
Toast.makeText(getApplicationContext(), "Logged Out!", Toast.LENGTH_LONG).show();
Intent i = new Intent(HomePage.this, MainLoginActivity.class);
SharedPreferences myPrefs = getSharedPreferences(PREFS_LOGGED_IN, 0);
SharedPreferences.Editor editor = myPrefs.edit();
editor.putBoolean("isLoggedIn", false);
editor.commit();
startActivity(i);
finish();
}
public void handleFault(BackendlessFault fault) {
Toast.makeText(getApplicationContext(), "Did Not Log Out!", Toast.LENGTH_LONG).show();
}
});
}
case R.id.calendarButton:{
fragment = new CalendarFragment();
break;
}
case R.id.activityButton:{
fragment = new ActivityFragment();
break;
}
case R.id.contactsButton:{
fragment = new ContactsFragments();
break;
}
}
ft = getFragmentManager().beginTransaction();
ft.replace(R.id.fragment_container,fragment);
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
谢谢
这是什么功能？ 'Backendless.initApp（this，“blah blah”，“blah”，appVersion）;' – ChampS
使用模拟器时非常正常。 – natario