如何保存在Android的多选框状态关闭应用

-1

我正在开发一个应用程序中，我不得不放弃在自定义对话框中的应用程序允许这一点，但关闭对话框后选择chkbox的选项，然后重新打开它chkbox后国家失去了所有成为取消 有人建议我使用共享的喜好，这里是我的代码：图像允许用户打开对话框如何保存在Android的多选框状态关闭应用

ImageView img1 = (ImageView)findViewById(R.id.image_menu); 
     img1.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View arg0) { 

       // custom dialog 
       final Dialog dialog = new Dialog(MainActivity.this); 
       dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); 
       dialog.setContentView(R.layout.menu); 
       Button dialogButton = (Button) dialog.findViewById(R.id.btncross); 
       // if button is clicked, close the custom dialog 
       dialogButton.setOnClickListener(new OnClickListener() { 
        @Override 
        public void onClick(View v) { 
         dialog.dismiss(); 
        } 
       }); 

       dialog.show(); 

       Button btnShare = (Button)dialog.findViewById(R.id.btnShare); 
       btnShare.setOnClickListener(new OnClickListener() { 

        @Override 
        public void onClick(View arg0) { 
         // TODO Auto-generated method stub 
         Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); 
         sharingIntent.setType("text/plain"); 
         String shareBody = "Dry Day App "; 
         sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "DryDayApp"); 
         sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody); 
         dialog.getContext().startActivity(Intent.createChooser(sharingIntent, "Share via")); 

        } 

       }); 

       cb1 = (CheckBox)dialog.findViewById(R.id.checkBoxHR); 
       cb1.setChecked(preferences.getBoolean("c1", false)); 
       cb1.setOnCheckedChangeListener(listener1); 

       cb2 = (CheckBox)dialog.findViewById(R.id.checkBoxDay); 
       cb2.setChecked(preferences.getBoolean("c2", false)); 
       cb2.setOnCheckedChangeListener(listener2); 

       cb3 = (CheckBox)dialog.findViewById(R.id.checkBox1); 
       cb3.setChecked(preferences.getBoolean("c3", false)); 
       cb3.setOnCheckedChangeListener(listener3); 


       } 
      });

侦听chkbox

private OnCheckedChangeListener listener1 = new OnCheckedChangeListener() { 

      public void onCheckedChanged(CompoundButton arg0, boolean isChecked) { 
       if(isChecked){ 
       cb1.setChecked(true); 
       cb2.setChecked(false); 
       cb3.setChecked(false); 

       preferences = getPreferences(MODE_PRIVATE); 
        SharedPreferences.Editor editor = preferences.edit(); 
        editor.putBoolean("c1", true); 
        editor.putBoolean("c2", false); 
        editor.putBoolean("c3", false); 
        editor.commit(); 
       } 


      } 
     }; 

     private OnCheckedChangeListener listener2 = new OnCheckedChangeListener() { 

      public void onCheckedChanged(CompoundButton arg0, boolean isChecked) { 
       if(isChecked){ 
       cb1.setChecked(false); 
       cb2.setChecked(true); 
       cb3.setChecked(false); 

       preferences = getPreferences(MODE_PRIVATE); 
        SharedPreferences.Editor editor = preferences.edit(); 
        editor.putBoolean("c1", false); 
        editor.putBoolean("c2", true); 
        editor.putBoolean("c3", false); 
        editor.commit(); 
       } 


      } 
     }; 
     private OnCheckedChangeListener listener3 = new OnCheckedChangeListener() { 

      public void onCheckedChanged(CompoundButton arg0, boolean isChecked) { 
       if(isChecked){ 
       cb1.setChecked(false); 
       cb2.setChecked(false); 
       cb3.setChecked(true); 
       //context.getSharedPreferences("YOUR_PREFS", 0).edit().clear().commit(); 

       preferences = getPreferences(MODE_PRIVATE); 
        SharedPreferences.Editor editor = preferences.edit(); 
        editor.putBoolean("c1", false); 
        editor.putBoolean("c2", false); 
        editor.putBoolean("c3", true); 
        editor.commit(); 
       } 


      } 
     }; 

now the application crashes showing null pointer exception 
how to solve this issue

错误在我的日志猫

05-21 13:14:44.420: E/AndroidRuntime(12169): FATAL EXCEPTION: main 
05-21 13:14:44.420: E/AndroidRuntime(12169): java.lang.NullPointerException 
05-21 13:14:44.420: E/AndroidRuntime(12169): at com.example.dd.MainActivity$7.onClick(MainActivity.java:262) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.view.View.performClick(View.java:4171) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.view.View$PerformClick.run(View.java:17195) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.os.Handler.handleCallback(Handler.java:643) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.os.Handler.dispatchMessage(Handler.java:92) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.os.Looper.loop(Looper.java:137) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at android.app.ActivityThread.main(ActivityThread.java:4803) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at java.lang.reflect.Method.invokeNative(Native Method) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at java.lang.reflect.Method.invoke(Method.java:511) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 
05-21 13:14:44.420: E/AndroidRuntime(12169): at dalvik.system.NativeStart.main(Native Method)

来源

2014-05-21 user2750762

告诉我你的logcat的。 –

我已经编辑，以显示错误 – user2750762

@ user2750762什么是行号262在MainActivity.java – Hariharan

试试这个..

prefernces = PreferenceManager.getDefaultSharedPreferences(this);

内onCreate()

来源

2014-05-21 08:29:14 Hariharan

如何保存在Android的多选框状态关闭应用

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