避免版本升级实体类变化导致崩溃

shixianjie
1 parent c7efa41793
Showing 2 changed files with 12 additions and 2 deletions Show diff stats
app/src/main/java/com/hjx/parent/App.java
libs/common/src/main/java/com/prws/common/utils/SharedPreferencesUtil.java
@@ -39,6 +39,7 @@ public class App extends CommonApplication {
         super.onCreate();
         this.instance = this;
         SharedPreferencesUtil.getInstance(this, "config");
+        SharedPreferencesUtil.checkVersion(this);
         ZXingLibrary.initDisplayOpinion(this);
     }
 }
@@ -263,10 +263,19 @@ public class SharedPreferencesUtil {
     }
  
     public static void clear(Context context) {
-        SharedPreferences preferences = context.getSharedPreferences("config", Context.MODE_PRIVATE);
-        SharedPreferences.Editor editor = preferences.edit();
+        SharedPreferences.Editor editor = sp.edit();
         editor.clear();
         editor.commit();
     }
  
+    private static final int myVersion = 2;
+    public static void checkVersion(Context context) {
+        if (sp.getInt("myVersion", 0) == myVersion) {
+            return;
+        }
+        clear(context);
+        SharedPreferences.Editor editor = sp.edit();
+        editor.putInt("myVersion", myVersion);
+        editor.apply();
+    }
 }
...	...	@@ -39,6 +39,7 @@ public class App extends CommonApplication {
39	39	super.onCreate();
40	40	this.instance = this;
41	41	SharedPreferencesUtil.getInstance(this, "config");
	42	+ SharedPreferencesUtil.checkVersion(this);
42	43	ZXingLibrary.initDisplayOpinion(this);
43	44	}
44	45	}
...	...
...	...	@@ -263,10 +263,19 @@ public class SharedPreferencesUtil {
263	263	}
264	264
265	265	public static void clear(Context context) {
266		- SharedPreferences preferences = context.getSharedPreferences("config", Context.MODE_PRIVATE);
267		- SharedPreferences.Editor editor = preferences.edit();
	266	+ SharedPreferences.Editor editor = sp.edit();
268	267	editor.clear();
269	268	editor.commit();
270	269	}
271	270
	271	+ private static final int myVersion = 2;
	272	+ public static void checkVersion(Context context) {
	273	+ if (sp.getInt("myVersion", 0) == myVersion) {
	274	+ return;
	275	+ }
	276	+ clear(context);
	277	+ SharedPreferences.Editor editor = sp.edit();
	278	+ editor.putInt("myVersion", myVersion);
	279	+ editor.apply();
	280	+ }
272	281	}
...	...