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我做的應用程序。 當我按下切換按鈕，那麼它將設置警報。 然後，當我再次按下撥動按鈕1時，它將取消報警。 另外，如果我重新啓動應用程序，它不會改變我在重新啓動應用程序之前設置。Android部隊關閉，原因是什麼？
但是問題在於，它在我開始使用時非常有效，但是當我重新啓動它以取消警報時，它就會關閉。
so我該怎麼做才能使它沒有錯誤？
這裏是代碼。
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SharedPreferences pref = getSharedPreferences("pref", 0);
ToggleButton tglbutton = (ToggleButton)findViewById(R.id.toggleButton1);
TextView text1 = (TextView) findViewById(R.id.View1);
Boolean tgl = pref.getBoolean("toggleButton", false);
String textData = pref.getString("text1", "");
tglbutton.setChecked(tgl);
text1.setText(textData);
}
public void onToggleClicked(View view) {
boolean on = ((ToggleButton) view).isChecked();
if(on){
alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
int month = calendar.get(Calendar.MONTH) + 1;
int day = calendar.get(Calendar.DAY_OF_MONTH);
{
calendar0606.set(Calendar.MONTH, Calendar.JUNE);
calendar0606.set(Calendar.DAY_OF_MONTH, 6);
int month0606 = calendar0606.get(Calendar.MONTH) + 1;
//month2= MARCH
int day0606 = calendar0606.get(Calendar.DAY_OF_MONTH);
if(month > month0606){
int year = calendar0606.get(Calendar.YEAR)+1;
calendar0606.set(Calendar.YEAR, year);
}
else if(month <= month0606)
{if(day >day0606){
int year = calendar0606.get(Calendar.YEAR)+1;
calendar0606.set(Calendar.YEAR, year);
}}
}
TextView text1 = (TextView) findViewById(R.id.View1);
text1.setText(R.string.working);}else{
alarm.cancel(pendingIntent0606());
return;
}
setAlarm0606();}
public void onStop(){
super.onStop();
SharedPreferences pref = getSharedPreferences("pref", Activity.MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
ToggleButton tglbutton = (ToggleButton)findViewById(R.id.toggleButton1);
TextView text1 = (TextView) findViewById(R.id.View1);
editor.putBoolean("toggleButton", tglbutton.isChecked());
editor.putString("text1", text1.getText().toString());
editor.commit();
}
logcat的
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.207: D/szipinf(7912): Initializing inflate state
03-01 22:37:59.207: D/szipinf(7912): Initializing zlib to inflate
03-01 22:37:59.257: D/dalvikvm(7912): GC_EXTERNAL_ALLOC freed 52K, 49% free 2783K/5379K, external 1973K/2108K, paused 31ms
03-01 22:39:23.089: D/dalvikvm(7912): Debugger has detached; object registry had 1 entries
03-01 22:41:02.128: I/dalvikvm(8188): Total arena pages for JIT: 11
03-01 22:41:12.167: D/AndroidRuntime(8188): Shutting down VM
03-01 22:41:12.167: W/dalvikvm(8188): threadid=1: thread exiting with uncaught exception (group=0x4001e578)
03-01 22:41:12.210: E/AndroidRuntime(8188): FATAL EXCEPTION: main
03-01 22:41:12.210: E/AndroidRuntime(8188): java.lang.IllegalStateException: Could not execute method of the activity
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.view.View$1.onClick(View.java:2154)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.view.View.performClick(View.java:2538)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.widget.CompoundButton.performClick(CompoundButton.java:99)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.view.View$PerformClick.run(View.java:9152)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.os.Handler.handleCallback(Handler.java:587)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.os.Handler.dispatchMessage(Handler.java:92)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.os.Looper.loop(Looper.java:130)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.app.ActivityThread.main(ActivityThread.java:3687)
03-01 22:41:12.210: E/AndroidRuntime(8188): at java.lang.reflect.Method.invokeNative(Native Method)
03-01 22:41:12.210: E/AndroidRuntime(8188): at java.lang.reflect.Method.invoke(Method.java:507)
03-01 22:41:12.210: E/AndroidRuntime(8188): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
03-01 22:41:12.210: E/AndroidRuntime(8188): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
03-01 22:41:12.210: E/AndroidRuntime(8188): at dalvik.system.NativeStart.main(Native Method)
03-01 22:41:12.210: E/AndroidRuntime(8188): Caused by: java.lang.reflect.InvocationTargetException
03-01 22:41:12.210: E/AndroidRuntime(8188): at java.lang.reflect.Method.invokeNative(Native Method)
03-01 22:41:12.210: E/AndroidRuntime(8188): at java.lang.reflect.Method.invoke(Method.java:507)
03-01 22:41:12.210: E/AndroidRuntime(8188): at android.view.View$1.onClick(View.java:2149)
03-01 22:41:12.210: E/AndroidRuntime(8188): ... 12 more
03-01 22:41:12.210: E/AndroidRuntime(8188): Caused by: java.lang.NullPointerException
03-01 22:41:12.210: E/AndroidRuntime(8188): at com.simpson.knflagralarm.MainActivity.onToggleClicked(MainActivity.java:226)
03-01 22:41:12.210: E/AndroidRuntime(8188): ... 15 more
你能後的堆棧跟蹤？使用這個堆棧跟蹤，你可以確定它在哪一行失敗。確保你在你的問題中包含了這一行。 – doydoy
什麼是堆棧跟蹤？你能解釋一下嗎？那我該如何使用它？ – user2899769
當您運行應用程序時，您會在logcat窗口中看到輸出。您可以通過您的應用程序特有的內容來對其進行過濾，例如程序包名稱的一部分，以便它能夠顯示您感興趣的內容。編號建議google logog – doydoy