通過選中/取消選中CheckBoxPreference來啓動/停止服務

我正在通過選中或取消選中來編寫啓動或停止服務的應用程序CheckBoxPreference 我試圖找到一些信息，如示例代碼或教程。但我還沒找到。如何通過選中或取消選中啓動或停止服務CheckBoxPreference 這是PreferenceActivity？我想在「service_toggle」鍵爲true時啓動服務，在「service_toggle」鍵爲false時停止服務。是否有任何關於啓動/停止服務的示例代碼或教程：選中/取消選中CheckBoxPreference？通過選中/取消選中CheckBoxPreference來啓動/停止服務

這裏是我的代碼：

Settings.java

package kr.hybdms.sidepanel; 

import android.content.Intent; 
import android.net.Uri; 
import android.os.Bundle; 
import android.preference.Preference; 
import android.preference.Preference.OnPreferenceClickListener; 

import com.actionbarsherlock.app.SherlockPreferenceActivity; 
import kr.hybdms.sidepanel.R; 

public class Settings extends SherlockPreferenceActivity implements OnPreferenceClickListener{ 

     @SuppressWarnings("deprecation") 
     @Override 
     public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     addPreferencesFromResource(R.xml.settings); 



     Preference pAppName = (Preference)findPreference("blog_intent"); 
     Preference pAppVersion = (Preference)findPreference("appinfo_intent"); 

     pAppName.setOnPreferenceClickListener(this); 
     pAppVersion.setOnPreferenceClickListener(this); 
    } 

    @Override 
    public boolean onPreferenceClick(Preference preference) 
    { 

     if(preference.getKey().equals("blog_intent")) 
     { 
      Intent blog = new Intent(Intent.ACTION_VIEW); 
      blog.setData(Uri.parse("http://hybdms.blogspot.kr")); 
      startActivity(blog); 
     } 

     else if(preference.getKey().equals("appinfo_intent")) 
     { 
      Intent appinfo = new Intent(Settings.this, Appinfo.class); 
      startActivity(appinfo); 
     } 
     return false; 
    } 

}

的settings.xml

<?xml version="1.0" encoding="utf-8"?> 
<PreferenceScreen 
     xmlns:android="http://schemas.android.com/apk/res/android"> 
    <CheckBoxPreference android:key="service_toggle" android:title="@string/pref_service_toggle" android:summary="@string/pref_service_toggle_sub" android:defaultValue="false"/> 
    <CheckBoxPreference android:key="autostart_toggle" android:title="@string/pref_auto" android:summary="@string/pref_auto_sub" android:defaultValue="false" android:selectable="false" android:enabled="false"/> 
    <Preference android:key="guide_intent" android:selectable="false" android:summary="@string/pref_guide_sub" android:title="@string/pref_guide" android:enabled="false"/> 
    <Preference android:key="blog_intent" android:summary="@string/pref_blog_sub" android:title="@string/pref_blog"/> 
    <Preference android:key="appinfo_intent" android:summary="@string/pref_appinfo_sub" android:title="@string/pref_appinfo"/> 

</PreferenceScreen>

TouchDetectService.java

package kr.hybdms.sidepanel; 

import android.app.Service; 
import android.content.Intent; 
import android.os.IBinder; 
import android.view.Gravity; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.View.OnTouchListener; 
import android.view.WindowManager; 
import android.widget.ImageView; 
import android.graphics.PixelFormat; 

public class TouchDetectService extends Service { 
    private ImageView mTouchDetector;       
    private WindowManager.LayoutParams mParams;  
    private WindowManager mWindowManager;  

    private OnTouchListener mViewTouchListener = new OnTouchListener() { 
     @Override public boolean onTouch(View v, MotionEvent event) { 
      switch(event.getAction()) { 

       case MotionEvent.ACTION_MOVE: 

        Intent lsp = new Intent(getBaseContext(), LeftSidePanel.class); 
        lsp.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
        getApplication().startActivity(lsp); 
        break; 
      } 

      return true; 
     } 
    }; 

    @Override 
    public IBinder onBind(Intent arg0) { return null; } 

    @Override 
    public void onCreate() { 
     super.onCreate(); 

      mTouchDetector = new ImageView(this);           
      mTouchDetector.setImageResource(R.drawable.detector); 
      mTouchDetector.setOnTouchListener(mViewTouchListener);    

      mParams = new WindowManager.LayoutParams(
       WindowManager.LayoutParams.WRAP_CONTENT, 
       WindowManager.LayoutParams.WRAP_CONTENT, 
       WindowManager.LayoutParams.TYPE_PHONE, 
       WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, 
       PixelFormat.TRANSLUCENT);           
      mParams.gravity = Gravity.LEFT | Gravity.CENTER;     

      mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE); 
      mWindowManager.addView(mTouchDetector, mParams);  permission 
     } 

    @Override 
    public void onDestroy() { 
     if(mWindowManager != null) {   
      if(mTouchDetector != null) mWindowManager.removeView(mTouchDetector); 
     } 
     super.onDestroy(); 
    }

來源

2013-02-24 sukso

好像你已經有代碼來檢測人攻上的偏好。只要看看它的價值，並調用startService或stopService。 – 2013-02-24 07:28:25

@GabeSechan但是我想要啓動或停止服務取決於「service_toggle」CheckBoxPreference值 – sukso 2013-02-24 07:46:40

不要這樣做。用戶[這] [1]方法。 [1]：http://stackoverflow.com/questions/12214673/how-to-apply-condition-onpreferenceclick-in-android – JanithaR 2013-02-24 08:23:12

CheckBoxPreference checkboxPref = (CheckBoxPreference)getPreferenceManager().findPreference("service_toggle"); 

checkboxPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {    

    public boolean onPreferenceChange(Preference preference, Object newValue) { 

     boolean myValue = (Boolean) newValue; 

     if(myValue) 
      startService(new Intent(Settings.this, TouchDetectService.class)); 
     else 
      stopService(new Intent(Settings.this, TouchDetectService.class)); 

     return true; 
    } 
});

來源

2013-02-24 08:29:13 moDev

非常感謝！它工作得很好！ – sukso 2013-02-24 13:59:58

小心 - 您應該保留對OnPreferenceChangeListener的引用，否則可能會收集垃圾。請參閱文檔：https：//developer.android.com/guide/topics/ui/settings.html#Listening – smarcantonio 2017-06-20 22:56:27

public class Settings extends SherlockPreferenceActivity implements OnPreferenceClickListener, OnPreferenceChangeListener { 

     @SuppressWarnings("deprecation") 
     @Override 
     public void onCreate(Bundle savedInstanceState) { 
     ......... 

     CheckBoxPreference chkServiceToogle = (CheckBoxPreference)findPreference("service_toggle"); 
     chkServiceToogle.setOnPreferenceChangeListener(this); 
    } 

    @Override 
    public boolean onPreferenceChange(Preference preference, String key) 
    { 
     if (key.equals("service_toggle")) { 
      if(sharedPreferences.getBoolean(key, false)) { 
       Intent intent = new Intent(getApplicationContext(), TouchDetectService.class); 
       startService(intent); 
      } else { 
       Intent intent = new Intent(getApplicationContext(), TouchDetectService.class); 
       stopService(intent); 
      } 
     } 
    } 
........ 
}

來源

2013-02-24 08:27:37 Waqas

通過選中/取消選中CheckBoxPreference來啓動/停止服務

回答

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