512mb内存移动设备中的Android应用程序崩溃
嗨,我创建了一个android应用程序,并将其上传到一个游戏商店,在该应用程序中,我使用导航抽屉从一个活动导航到另一个活动 我的应用程序在最多1 GB内存和最新操作系统(如KitKat或棒棒糖)的手机上运行良好,但在512 MB内存的手机和冰激凌三明治版本中,该应用程序在启动后关闭,不幸的是,该应用程序已停止。这个问题只出现在少数手机上,我是根据play store中的用户评论说的 我的最小和最大SDK版本是512mb内存移动设备中的Android应用程序崩溃,android,android-fragments,android-navigation,Android,Android Fragments,Android Navigation,嗨,我创建了一个android应用程序,并将其上传到一个游戏商店,在该应用程序中,我使用导航抽屉从一个活动导航到另一个活动 我的应用程序在最多1 GB内存和最新操作系统(如KitKat或棒棒糖)的手机上运行良好,但在512 MB内存的手机和冰激凌三明治版本中,该应用程序在启动后关闭,不幸的是,该应用程序已停止。这个问题只出现在少数手机上,我是根据play store中的用户评论说的 我的最小和最大SDK版本是 <uses-sdk android:minSdkVersion="14"
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="19" />
我的主要活动是
public class MainActivity extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//From this to - For Internet Connectivity Checking
ConnectivityManager cn=(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo nf=cn.getActiveNetworkInfo();
if(nf != null && nf.isConnected()==true )
{
Toast.makeText(this, "You Have Active Internet Connection", Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(this, "Network Not Available", Toast.LENGTH_LONG).show();
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("You Don't Have Active Internet Connection, Click Ok To Exit")
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do things
finish();
}
});
AlertDialog alert = builder.create();
alert.show();
}
//Upto this - For Internet Connectivity Checking
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// About Us
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Principal Speech
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(3, -1)));
// Circulars
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(4, -1),
false, "22"));
// Internal Events
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(6, -1)));
//External Events
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(6, -1)));
// Academic Calendar
navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -1)));
// Admissions
navDrawerItems.add(new NavDrawerItem(navMenuTitles[7], navMenuIcons.getResourceId(7, -1)));
// Competition
navDrawerItems.add(new NavDrawerItem(navMenuTitles[8], navMenuIcons.getResourceId(8, -1)));
// Class Work
navDrawerItems.add(new NavDrawerItem(navMenuTitles[9], navMenuIcons.getResourceId(9, -1)));
// Home Work
navDrawerItems.add(new NavDrawerItem(navMenuTitles[10], navMenuIcons.getResourceId(10, -1)));
// Training & Test
navDrawerItems.add(new NavDrawerItem(navMenuTitles[11], navMenuIcons.getResourceId(11, -1)));
// Examination
navDrawerItems.add(new NavDrawerItem(navMenuTitles[12], navMenuIcons.getResourceId(12, -1)));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
//Following one line is added for onBackPressed Method
mDrawerLayout.setFocusableInTouchMode(false);
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new HomeFragment();
break;
case 1:
fragment = new AboutUsFragment();
break;
case 2:
fragment = new PrincipalSpeechFragment();
break;
case 3:
fragment = new CircularsFragment();
break;
case 4:
fragment = new EventsFragment();
break;
case 5:
fragment = new ExternalEventsFragment();
break;
case 6:
fragment = new AC_CalenderFragment();
break;
case 7:
fragment = new AdmissionsFragment();
break;
case 8:
fragment = new CompetitionFragment();
break;
case 9:
fragment = new ClassWorkFragment();
break;
case 10:
fragment = new HomeWorkFragment();
break;
case 11:
fragment = new TrainingTestFragment();
break;
case 12:
fragment = new ExaminationFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
if (mDrawerLayout != null) {
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
//super.onBackPressed();
//Upcmoning line is for confirm exiting
new AlertDialog.Builder(this)
.setMessage("Are you sure you want to exit?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MainActivity.this.finish();
}
})
.setNegativeButton("No", null)
.show();
}
}
我认为解决你问题的办法是: 只需将此行添加到清单文件中的应用程序:
android:largeHeap="true"
因此,应用程序的清单文件应如下所示:
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:largeHeap="true"
android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" >
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
问题是什么?我需要知道为什么会发生崩溃以及如何修复。从开发人员控制台发布错误跟踪。嘿,兄弟,这不是你的RAM问题。。请发布您的错误跟踪,以便我们可以帮助您。@MrNice我补充说,兄弟解决了错误的问题。他得到的是NullPointerException,不是OutOfMemory错误。
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:largeHeap="true"
android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" >
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>