Initial commit

Initial commit

Author: Mohammad Ali Riazati

.idea/codeStyles/Project.xml

@@ -12,7 +12,7 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        SPUtils utils = new SPUtils(this);
+        SPUtils utils = SPUtils.getInstance(this);
 
         // Write To Preference
         utils.writeString  ("key" , "text");

.idea/encodings.xml

@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
+        classpath 'com.android.tools.build:gradle:3.4.2'
     }
 }
 

app/src/main/java/ir/farsroidx/application/MainActivity.java

@@ -1,6 +1,6 @@
-#Sun Apr 14 12:48:11 IRDT 2019
+#Sun Jul 14 14:58:43 IRDT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

build.gradle

@@ -1,69 +1,103 @@
 package ir.farsroidx;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
 public class SPUtils {
 
     private Context context;
+    @SuppressLint("StaticFieldLeak")
+    private static SPUtils spUtils              = null;
+    private SharedPreferences sharedPreferences = null;
+    private SharedPreferences.Editor editor     = null;
 
-    public SPUtils(Context context) {
+    private SPUtils(Context context) {
         this.context = context;
     }
 
-    private SharedPreferences preference() {
-        return PreferenceManager.getDefaultSharedPreferences(context);
+    public static SPUtils getInstance(Context context){
+        if(spUtils == null){
+            spUtils = new SPUtils(context);
+        }
+        return spUtils;
+    }
+
+    private SharedPreferences getPreferenceInstance() {
+        if(sharedPreferences == null){
+            sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+        }
+        return sharedPreferences;
+    }
+
+    private SharedPreferences.Editor getPreferenceEditor() {
+        if(editor == null){
+            editor = getPreferenceInstance().edit();
+        }
+        return editor;
     }
 
     public String readString(String key, String alternative) {
-        return preference().getString(key, alternative);
+        return getPreferenceInstance().getString(key, alternative);
     }
 
     public float readFloat(String key, float alternative) {
-        return preference().getFloat(key, alternative);
+        return getPreferenceInstance().getFloat(key, alternative);
     }
 
     public long readLong(String key, long alternative) {
-        return preference().getLong(key, alternative);
+        return getPreferenceInstance().getLong(key, alternative);
     }
 
     public int readInteger(String key, int alternative) {
-        return preference().getInt(key, alternative);
+        return getPreferenceInstance().getInt(key, alternative);
     }
 
     public boolean readBoolean(String key, boolean alternative) {
-        return preference().getBoolean(key, alternative);
+        return getPreferenceInstance().getBoolean(key, alternative);
     }
 
     public void writeString(String key, String str) {
-        SharedPreferences.Editor editor = preference().edit();
+        SharedPreferences.Editor editor = getPreferenceEditor();
         editor.putString(key, str);
         editor.apply();
     }
 
     public void writeFloat(String key, float flt) {
-        SharedPreferences.Editor editor = preference().edit();
+        SharedPreferences.Editor editor = getPreferenceEditor();
         editor.putFloat(key , flt);
         editor.apply();
     }
 
     public void writeLong(String key, long lng) {
-        SharedPreferences.Editor editor = preference().edit();
+        SharedPreferences.Editor editor = getPreferenceEditor();
         editor.putLong(key,lng);
         editor.apply();
     }
 
     public void writeInteger(String key, int integer) {
-        SharedPreferences.Editor editor = preference().edit();
+        SharedPreferences.Editor editor = getPreferenceEditor();
         editor.putInt(key, integer);
         editor.apply();
     }
 
     public void writeBoolean(String key, boolean bln) {
-        SharedPreferences.Editor editor = preference().edit();
+        SharedPreferences.Editor editor = getPreferenceEditor();
         editor.putBoolean(key, bln);
         editor.apply();
     }
 
+    public void remove(String key) {
+        SharedPreferences.Editor editor = getPreferenceEditor();
+        editor.remove(key);
+        editor.apply();
+    }
+
+    public void clearAll() {
+        SharedPreferences.Editor editor = getPreferenceEditor();
+        editor.clear();
+        editor.apply();
+    }
+
 }