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POSharedPreferences Splash Screen supposed to call Activity after loading once - force closes instead
 

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    <p>I'm having an issue building a splash screen for a registration activity that I only want to run once. </p> <p>With the help of a few other stackoverflow ninjas I've been able to come up with the following code:</p> <pre><code>import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.content.Intent; import com.nfc.linkingmanager.R; import android.content.SharedPreferences; import java.lang.Object; import android.preference.PreferenceManager; public class SplashScreen extends Activity { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this ); finish(); if (prefs.getBoolean("SplashFlag", false)&amp;&amp;!mIsBackButtonPressed) { Intent intent = new Intent(SplashScreen.this, NewCore.class); SplashScreen.this.startActivity(intent); } else { SharedPreferences.Editor editor = preferences.edit(); editor.putBoolean("SplashFlag", true); // value to store // Again there are values for int, long, string, float, boolean Intent intent = new Intent(SplashScreen.this, AppActivity.class); SplashScreen.this.startActivity(intent); editor.commit(); // This is needed or the edits will not be put into the prefs file } private boolean mIsBackButtonPressed; private static final int SPLASH_DURATION = 1000; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.splash_screen); Handler handler = new Handler(); // run a thread after 2 seconds to start the home screen handler.postDelayed(new Runnable() { @Override public void run() { // make sure we close the splash screen so the user won't come back when it presses back key finish(); if (!mIsBackButtonPressed) { // start the home screen if the back button wasn't pressed already Intent intent = new Intent(SplashScreen.this, NewCore.class); SplashScreen.this.startActivity(intent); } } }, SPLASH_DURATION); // time in milliseconds (1 second = 1000 milliseconds) until the run() method will be called } @Override public void onBackPressed() { // set the flag to true so the next activity won't start up mIsBackButtonPressed = true; super.onBackPressed(); } } </code></pre> <p>However every time I execute it - it force closes on me. I'm new to using SharedPreferences So I'm sure I'm overlooking something simple.</p> <p>LOGCAT:</p> <pre><code>03-18 15:26:42.028: D/AndroidRuntime(23094): Shutting down VM 03-18 15:26:42.038: W/dalvikvm(23094): threadid=1: thread exiting with uncaught exception (group=0x41d42930) 03-18 15:26:42.038: E/AndroidRuntime(23094): FATAL EXCEPTION: main 03-18 15:26:42.038: E/AndroidRuntime(23094): java.lang.Error: Unresolved compilation problems: 03-18 15:26:42.038: E/AndroidRuntime(23094): Return type for the method is missing 03-18 15:26:42.038: E/AndroidRuntime(23094): This method requires a body instead of a semicolon 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error on token ";", { expected after this token 03-18 15:26:42.038: E/AndroidRuntime(23094): preferences cannot be resolved 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error on token "(", ; expected 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error on token ")", ; expected 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error on token(s), misplaced construct(s) 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error on token "void", @ expected 03-18 15:26:42.038: E/AndroidRuntime(23094): Syntax error, insert "}" to complete ClassBody 03-18 15:26:42.038: E/AndroidRuntime(23094): at com.nfc.linkingmanager.SplashScreen.&lt;init&gt; (SplashScreen.java:16) 03-18 15:26:42.038: E/AndroidRuntime(23094): at java.lang.Class.newInstanceImpl(Native Method) 03-18 15:26:42.038: E/AndroidRuntime(23094): at java.lang.Class.newInstance(Class.java:1319) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.Instrumentation.newActivity(Instrumentation.java:1054) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.ActivityThread.access$600(ActivityThread.java:141) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.os.Handler.dispatchMessage(Handler.java:99) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.os.Looper.loop(Looper.java:137) 03-18 15:26:42.038: E/AndroidRuntime(23094): at android.app.ActivityThread.main(ActivityThread.java:5041) 03-18 15:26:42.038: E/AndroidRuntime(23094): at java.lang.reflect.Method.invokeNative(Native Method) 03-18 15:26:42.038: E/AndroidRuntime(23094): at java.lang.reflect.Method.invoke(Method.java:511) 03-18 15:26:42.038: E/AndroidRuntime(23094): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 03-18 15:26:42.038: E/AndroidRuntime(23094): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 03-18 15:26:42.038: E/AndroidRuntime(23094): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. USMichael Celey
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    1. COYour code looks really strange. OnCreate part looks fine but the part after "public class SplashScreen extends Activity {" is a WTF
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      1. USMark
    2. COIt's God's way of telling you that splash screens are evil.
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    3. COlol! @Simon I updated it as suggested... But it's still closing. : ( https://docs.google.com/document/d/10SU91Yeo9DmtdNvBG2-353hkfETba_KQyx8ffrAbVEY/edit?usp=sharing
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