2
有關StackExchange的第一個問題，所以我希望您能原諒我的錯誤。無法啓動除啓動器活動以外的任何活動
我正在開發一個應用程序，它是一個csipsimple項目分叉。但是，無論何時我嘗試使用意向或活動啓動器應用程序啓動活動，該應用程序都會崩潰。
這裏是堆棧跟蹤，當我嘗試推出的活動（這是相同的，除了SplashActivity這是發射活動，並運行良好的任何活動。）：
編輯錯誤（意外刪除清單項，但問題仍然存在。）
07-21 15:33:18.584: E/AndroidRuntime(5827): FATAL EXCEPTION: main
07-21 15:33:18.584: E/AndroidRuntime(5827): Process: com.myapp.client, PID: 5827
07-21 15:33:18.584: E/AndroidRuntime(5827): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp.client/com.myapp.client.LoginActivity}: java.lang.NullPointerException
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread.access$800(ActivityThread.java:135)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.os.Handler.dispatchMessage(Handler.java:102)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.os.Looper.loop(Looper.java:136)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread.main(ActivityThread.java:5001)
07-21 15:33:18.584: E/AndroidRuntime(5827): at java.lang.reflect.Method.invokeNative(Native Method)
07-21 15:33:18.584: E/AndroidRuntime(5827): at java.lang.reflect.Method.invoke(Method.java:515)
07-21 15:33:18.584: E/AndroidRuntime(5827): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
07-21 15:33:18.584: E/AndroidRuntime(5827): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
07-21 15:33:18.584: E/AndroidRuntime(5827): at dalvik.system.NativeStart.main(Native Method)
07-21 15:33:18.584: E/AndroidRuntime(5827): Caused by: java.lang.NullPointerException
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.AlertDialog.resolveDialogTheme(AlertDialog.java:143)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.AlertDialog.<init>(AlertDialog.java:98)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ProgressDialog.<init>(ProgressDialog.java:77)
07-21 15:33:18.584: E/AndroidRuntime(5827): at com.myapp.client.db.MySQLProvider.<init>(MySQLProvider.java:65)
07-21 15:33:18.584: E/AndroidRuntime(5827): at com.myapp.client.LoginActivity.onCreate(LoginActivity.java:69)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.Activity.performCreate(Activity.java:5231)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-21 15:33:18.584: E/AndroidRuntime(5827): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
07-21 15:33:18.584: E/AndroidRuntime(5827): ... 11 more
下面的代碼是我SplashActivity.java調用LoginActivity.java
package com.myapp.client;
public class SplashActivity extends Activity {
protected boolean _active = true;
protected int _splashTime = 3000; // time to display the splash screen in ms
@Override
public void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
if (Build.VERSION.SDK_INT < 16) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
else
{
View decorView = getWindow().getDecorView();
// Hide the status bar.
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
}
defaultAccount();
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
Thread splashTread = new Thread() {
@Override
public void run() {
try {
int waited = 0;
while (_active && (waited < _splashTime)) {
sleep(100);
if (_active) {
waited += 100;
}
}
} catch (Exception e) {
} finally {
startActivity(new Intent(SplashActivity.this,
LoginActivity.class));
finish();
}
};
};
splashTread.start();
}
private void defaultAccount(){
PreferencesProviderWrapper prefwrap = new PreferencesProviderWrapper(getApplicationContext());
if (prefwrap.getPreferenceBooleanValue("initialrun", true))
{
//Set the default account
PreferencesWrapper prefs = new PreferencesWrapper(getApplicationContext());
WizardInfo wizardInfo = WizardUtils.getWizardClass("myapp");
WizardIface wizard = null;
try {
wizard = (WizardIface) wizardInfo.classObject.newInstance();
} catch (InstantiationException e) {
Log.e("myapp", "Can't access wizard class", e);
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
Log.e("myapp", "Can't access wizard class", e);
}
prefwrap.setPreferenceBooleanValue("initialrun", false);
SipProfile account = SipProfile.getProfileFromDbId(this, SipProfile.INVALID_ID, DBProvider.ACCOUNT_FULL_PROJECTION);
account = wizard.buildAccount(account);
prefs.startEditing();
wizard.setDefaultParams(prefs);
prefs.endEditing();
account.display_name = "myapp Account";
account.username= "REDACTED";
account.wizard = "myapp";
account = wizard.buildAccount(account);
account.acc_id = "REDACTED";
account.reg_uri = "REDACTED";
account.datatype=0;
account.data="REDACTED";
account.use_rfc5626 = true;
if(true) {
if(TextUtils.isEmpty(account.rfc5626_instance_id)) {
String autoInstanceId = (UUID.randomUUID()).toString();
account.rfc5626_instance_id = "<urn:uuid:"+autoInstanceId+">";
}
}
Uri uri = getContentResolver().insert(SipProfile.ACCOUNT_URI, account.getDbContentValues());
account.id = ContentUris.parseId(uri);
List<Filter> filters = wizard.getDefaultFilters(account);
if (filters != null) {
for (Filter filter : filters) {
// Ensure the correct id if not done by the wizard
filter.account = (int) account.id;
getContentResolver().insert(SipManager.FILTER_URI, filter.getDbContentValues());
}
}
}}
}
然後在這裏爲m ŸLoginActivity.java
package com.myapp.client;
public class LoginActivity extends Activity {
MySQLProvider loginProvider;
Map<String,String> siplogin = null;
EditText username;
EditText password;
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
if (Build.VERSION.SDK_INT < 16) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
}
else
{
View decorView = getWindow().getDecorView();
// Hide the status bar.
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
}
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
username = (EditText)findViewById(R.id.username1);
password = (EditText)findViewById(R.id.password1);
loginProvider= new MySQLProvider(LoginActivity.this);
}
public void loginSubmit(View view){
int responseRecieved = generateResponse();
if (responseRecieved == 0){
setSipLogin(siplogin);
}
generateDialog(responseRecieved);
}
private int generateResponse(){
loginProvider.sqlConnect();
Map<String,String> logininfo = null;
ConnectivityManager cm =(ConnectivityManager)getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting();
if (!isConnected){return 3;}
if (username.getText().toString() != "" && password.getText().toString() != ""){
logininfo = loginProvider.getLoginInfo(username.getText().toString(), password.getText().toString());
}
else return 2;
if (logininfo.isEmpty() || logininfo == null){
return 1;
}
siplogin = logininfo;
return 0;
}
private void generateDialog(int response){
switch (response){
case 0:
break;
case 1:
AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.setTitle("myapp Login");
alertDialog.setMessage("Username or password is not correct. Please try again.");
alertDialog.setButton(DialogInterface.BUTTON_NEUTRAL, "OK", new Message());
alertDialog.show();
break;
case 2:
AlertDialog alertDialog1 = new AlertDialog.Builder(this).create();
alertDialog1.setTitle("myapp Login");
alertDialog1.setMessage("Please fill the required fields.");
alertDialog1.setButton(DialogInterface.BUTTON_NEUTRAL, "OK", new Message());
alertDialog1.show();
break;
case 3:
AlertDialog alertDialog2 = new AlertDialog.Builder(this).create();
alertDialog2.setTitle("myapp Login");
alertDialog2.setMessage("Please provide internet connectivity");
alertDialog2.setButton(DialogInterface.BUTTON_NEUTRAL, "OK", new Message());
alertDialog2.show();
break;
}
}
private void setSipLogin(Map<String,String> siplogin){
PreferencesProviderWrapper prefwrap = new PreferencesProviderWrapper(getApplicationContext());
//if (prefwrap.getPreferenceBooleanValue("initialrun", true))
//{
//Set the default account(disabled)
PreferencesWrapper prefs = new PreferencesWrapper(getApplicationContext());
WizardInfo wizardInfo = WizardUtils.getWizardClass("myapp");
WizardIface wizard = null;
try {
wizard = (WizardIface) wizardInfo.classObject.newInstance();
} catch (InstantiationException e) {
Log.e("myapp", "Can't access wizard class", e);
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
Log.e("myapp", "Can't access wizard class", e);
}
//prefwrap.setPreferenceBooleanValue("initialrun", false);
SipProfile account = SipProfile.getProfileFromDbId(this, 1, DBProvider.ACCOUNT_FULL_PROJECTION);
account = wizard.buildAccount(account);
prefs.startEditing();
wizard.setDefaultParams(prefs);
prefs.endEditing();
String[] sipLoginParsed = siplogin.get("info").split(Pattern.quote("#|#|#|#"));
account.display_name = "myapp Account";
account.username= sipLoginParsed[0];
account.wizard = "myapp";
account = wizard.buildAccount(account);
account.acc_id = "REDACTED";
account.reg_uri = "REDACTED";
account.datatype=0;
account.data=sipLoginParsed[1];
account.use_rfc5626 = true;
if(true) {
if(TextUtils.isEmpty(account.rfc5626_instance_id)) {
String autoInstanceId = (UUID.randomUUID()).toString();
account.rfc5626_instance_id = "<urn:uuid:"+autoInstanceId+">";
}
}
Uri uri = getContentResolver().insert(SipProfile.ACCOUNT_URI, account.getDbContentValues());
account.id = ContentUris.parseId(uri);
List<Filter> filters = wizard.getDefaultFilters(account);
if (filters != null) {
for (Filter filter : filters) {
// Ensure the correct id if not done by the wizard
filter.account = (int) account.id;
getContentResolver().insert(SipManager.FILTER_URI, filter.getDbContentValues());
}
}
startActivity(new Intent(LoginActivity.this,SipHome.class));
}
}
//}
最後，這裏是我的Android清單
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myapp.client"
android:installLocation="auto"
android:versionCode="2459"
android:versionName="1.02.03" >
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="22" />
<application
android:allowBackup="true"
android:backupAgent=".backup.SipBackupAgent"
android:hardwareAccelerated="true"
android:icon="@drawable/ic_launcher_nightly"
android:label="myapp" >
<!--
<activity
android:name=".ui.SipHome"
android:label="@string/app_name"
android:launchMode="singleTask"
android:theme="@style/DarkTheme"
android:uiOptions="splitActionBarWhenNarrow" >
<intent-filter android:priority="10" >
<action android:name="com.myapp.client.phone.action.DIALER" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter android:priority="10" >
<action android:name="android.intent.action.DIAL" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="sip" />
<data android:scheme="csip" />
</intent-filter>
<intent-filter android:priority="10" >
<action android:name="com.myapp.client.phone.action.CALLLOG" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter android:priority="10" >
<action android:name="com.myapp.client.phone.action.FAVORITES" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter android:priority="10" >
<action android:name="com.myapp.client.phone.action.MESSAGES" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity-alias
android:name=".ui.SipDialer"
android:label="@string/app_name"
android:launchMode="singleTask"
android:targetActivity=".ui.SipHome"
android:theme="@style/DarkTheme"
android:uiOptions="splitActionBarWhenNarrow" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.SENDTO" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="csip" />
<data android:scheme="sip" />
<data android:scheme="sips" />
<data android:scheme="sms" />
<data android:scheme="smsto" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.SENDTO" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data
android:host="csip"
android:scheme="imto" />
<data
android:host="sip"
android:scheme="imto" />
<data
android:host="skype"
android:scheme="imto" />
</intent-filter>
</activity-alias>
<!-- Main service -->
<!-- Require at least the configure permission to use -->
<service
android:name=".service.SipService"
android:exported="true"
android:permission="android.permission.CONFIGURE_SIP"
android:process=":sipStack" >
<intent-filter>
<action android:name="com.myapp.client.service.SipService" />
<action android:name="com.myapp.client.service.SipConfiguration" />
</intent-filter>
</service>
<service android:name=".service.Downloader" />
<!-- Main ui -->
<activity
android:name=".ui.calllog.CallLogDetailsActivity"
android:theme="@style/DarkTheme" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".ui.prefs.cupcake.MainPrefs"
android:configChanges="orientation"
android:enabled="@bool/use_cupcake_prefs"
android:label="@string/prefs"
android:permission="android.permission.CONFIGURE_SIP"
android:theme="@style/DarkTheme" >
<intent-filter>
<action android:name="com.myapp.client.ui.action.PREFS_GLOBAL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".ui.prefs.cupcake.PrefsLoaderActivity"
android:label=""
android:theme="@style/DarkTheme" />
<activity
android:name=".ui.prefs.PrefsFilters"
android:configChanges="orientation"
android:label="@string/filters"
android:theme="@style/DarkTheme" />
<activity
android:name=".ui.prefs.PrefsFast"
android:configChanges="orientation"
android:label="@string/prefs_fast"
android:permission="android.permission.CONFIGURE_SIP"
android:theme="@style/DarkTheme.Dialog" >
<intent-filter>
<action android:name="com.myapp.client.ui.action.PREFS_FAST" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".ui.prefs.Codecs"
android:configChanges="orientation"
android:label="@string/codecs"
android:theme="@style/DarkTheme" />
<activity
android:name=".ui.prefs.AudioTester"
android:label="@string/test_audio"
android:screenOrientation="portrait"
android:theme="@style/DarkTheme.Dialog" />
<!-- Wizards -->
<activity
android:name=".wizards.BasePrefsWizard"
android:configChanges="orientation"
android:label="@string/edit"
android:theme="@style/DarkTheme" />
<!-- Call management -->
<receiver
android:name=".service.OutgoingCall"
android:permission="android.permission.CALL_PHONE"
android:process=":sipStack" >
<!-- Here filter for protected-broadcasts -->
<intent-filter android:priority="0" >
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
<activity
android:name=".ui.outgoingcall.OutgoingCallChooser"
android:allowTaskReparenting="false"
android:configChanges="orientation"
android:excludeFromRecents="true"
android:label="@string/call"
android:launchMode="singleTask"
android:permission="android.permission.USE_SIP"
android:process=":sipStack"
android:taskAffinity=""
android:theme="@style/DarkTheme.Dialog" >
<intent-filter>
<action android:name="android.intent.action.CALL" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="csip" />
<data android:scheme="sip" />
<data android:scheme="sips" />
</intent-filter>
<intent-filter android:priority="10" >
<action android:name="android.phone.extra.NEW_CALL_INTENT" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="csip" />
<data android:scheme="sip" />
<data android:scheme="sips" />
</intent-filter>
</activity>
<activity-alias
android:name=".ui.PrivilegedOutgoingSipCallBroadcaster"
android:configChanges="orientation"
android:excludeFromRecents="true"
android:launchMode="singleTask"
android:permission="android.permission.CALL_PRIVILEGED"
android:targetActivity=".ui.outgoingcall.OutgoingCallChooser"
android:theme="@style/DarkTheme.Dialog" >
<intent-filter>
<action android:name="android.intent.action.CALL_PRIVILEGED" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="sip" />
</intent-filter>
</activity-alias>
<activity-alias
android:name=".ui.PrivilegedOutgoingCallBroadcaster"
android:configChanges="orientation"
android:enabled="false"
android:excludeFromRecents="true"
android:label="@string/sip_call"
android:launchMode="singleTask"
android:permission="android.permission.CALL_PRIVILEGED"
android:targetActivity=".ui.outgoingcall.OutgoingCallChooser"
android:theme="@style/DarkTheme.Dialog" >
<intent-filter>
<action android:name="android.intent.action.CALL_PRIVILEGED" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="tel" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.CALL_PRIVILEGED" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/phone" />
<data android:mimeType="vnd.android.cursor.item/phone_v2" />
<data android:mimeType="vnd.android.cursor.item/person" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.SENDTO" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="sms" />
<data android:scheme="smsto" />
</intent-filter>
</activity-alias>
<!-- To be able to do video, this has to be launched in sipStack process -->
<activity
android:name=".ui.incall.InCallActivity"
android:allowTaskReparenting="true"
android:configChanges="orientation"
android:excludeFromRecents="true"
android:launchMode="singleTask"
android:permission="android.permission.CONFIGURE_SIP"
android:process=":sipStack"
android:taskAffinity=""
android:theme="@style/DarkTheme.NoTitle" >
<intent-filter android:priority="10" >
<action android:name="com.myapp.client.phone.action.INCALL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".ui.PickupSipUri"
android:configChanges="orientation"
android:label="@string/pickup_sip_uri"
android:theme="@style/DarkTheme" />
<activity
android:name=".ui.incall.InCallMediaControl"
android:configChanges="orientation"
android:label="@string/prefs_media"
android:taskAffinity="com.myapp.client.ui.incall.InCallActivity"
android:theme="@style/DarkTheme.Dialog" />
<!-- New UI -->
<activity
android:name=".ui.account.AccountsEditList"
android:label="@string/accounts"
android:theme="@style/DarkTheme" />
<activity
android:name=".ui.account.AccountEdit"
android:theme="@style/DarkTheme" />
<activity
android:name=".SplashActivity"
android:label="@string/app_name"
android:noHistory="true"
android:theme="@style/Theme.Sherlock.NoActionBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.MULTIWINDOW_LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".LoginActivity"
android:noHistory="true"
android:configChanges="orientation"
android:label="LoginActivity" />
</application>
</manifest>
Android清單和代碼的某些部分被刪節爲30000個字符。（接收器和供應商也進口） 同樣的錯誤也發生當我嘗試從活動啓動器應用程序啓動任何活動時。
該錯誤是由MySQLProvider行65中的某些內容引起的，但日誌無法確定它。 – sergiomse
可能你的清單中的LoginActivity活動沒有定義主題。嘗試指定一個。 – sergiomse
第一個解決了錯誤，這是progressdialog的聲明錯誤。謝謝！ – Tevfik