Android records using MMKV
- 2021-12-21 04:53:45
- OfStack
Preface
I heard that Tencent's mmkv is very cowhide and can replace SharedPreferences. It is mainly used to save settings, such as string number, baud rate, camera preview angle, etc. Try Ha O (↓ _ ↓) O Ha ha ~
1. Dependency introduction, app build. gradle
implementation 'com.tencent:mmkv-static:1.0.23'
2. Encapsulate classes
import android.content.Context;
import com.tencent.mmkv.MMKV;
public class SharedPreferencesManager {
private static MMKV kv;
public static void init(Context context) {
String rootDir = MMKV.initialize(context);
System.out.println("mmkv root: " + rootDir);
kv = MMKV.defaultMMKV();
}
public static void putBoolean(String key, boolean value) {
kv.encode(key, value);
}
public static Boolean getBoolean(String key) {
return kv.decodeBool(key, false);
}
public static Boolean getBoolean(String key, boolean defValue) {
return kv.decodeBool(key, defValue);
}
public static void putInteger(String key, int value) {
kv.encode(key, value);
}
public static int getInteger(String key) {
return kv.decodeInt(key, 1);
}
public static int getInteger(String key, int defValue) {
return kv.decodeInt(key, defValue);
}
public static void putString(String key, String value) {
kv.encode(key, value);
}
public static String getString(String key) {
return kv.decodeString(key, "");
}
public static String getString(String key, String defaultValue) {
return kv.decodeString(key, defaultValue);
}
}
3. Initialize in a custom application
public class XXApplication extends Application {
@Override
public void onCreate() {
super.onCreate();
/* Initialization SharedPreferences*/
SharedPreferencesManager.init(this);
}
}
4. Use it to your heart's content
String mcuPath = SharedPreferencesManager.getString(Constants.SP_KEY_COM_MCU, Constants.DEFAULT_COM_MCU);
SharedPreferencesManager.putString(Constants.SP_KEY_COM_MCU, mcuPath);