//讀取系統配置資訊build.prop類
import android.os.Environment;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;

public class BuildProperties
 
 {

    private final Properties properties;

    private BuildProperties() throws IOException {
        properties = new Properties();
        properties.load(new FileInputStream(new File(Environment.getRootDirectory(), "build.prop")));
    }

    public boolean containsKey(final Object key) {
        return
 
 properties.containsKey(key);
    }

    public boolean containsValue(final Object value) {
        return properties.containsValue(value);
    }

    public Set<Entry<Object, Object>> entrySet() {
        return properties.entrySet();
    }

    public String getProperty(final String name) {
        return
 
 properties.getProperty(name);
    }

    public String getProperty(final String name, final String defaultValue) {
        return properties.getProperty(name, defaultValue);
    }

    public boolean isEmpty() {
        return properties.isEmpty();
    }

    public Enumeration<Object> keys() {
        return properties.keys();
    }

    public Set<Object> keySet() {
        return properties.keySet();
    }

    public int size() {
        return properties.size();
    }

    public Collection<Object> values() {
        return properties.values();
    }

    public static BuildProperties newInstance() throws IOException {
        return new BuildProperties();
    }

}


import android.os.Build;

import java.io.IOException;
import java.lang.reflect.Method;

/**
 * 判斷系統是不是miui，flyme，emui
 */
public class OSUtils {
    private static final String KEY_EMUI_VERSION_CODE = "ro.build.version.emui";
    private static final String KEY_MIUI_VERSION_CODE = "ro.miui.ui.version.code";
    private static final String KEY_MIUI_VERSION_NAME = "ro.miui.ui.version.name";
    private static final String KEY_MIUI_INTERNAL_STORAGE = "ro.miui.internal.storage";

    private static boolean isPropertiesExist(String... keys) {
        try {
            BuildProperties prop = BuildProperties.newInstance();
            for (String key : keys) {
                String str = prop.getProperty(key);
                if (str == null)
                    return false;
            }
            return true;
        } catch (IOException e) {
            return false;
        }
    }

    public static boolean isEMUI() {
        return isPropertiesExist(KEY_EMUI_VERSION_CODE);
    }

    public static boolean isMIUI() {
        return isPropertiesExist(KEY_MIUI_VERSION_CODE, KEY_MIUI_VERSION_NAME, KEY_MIUI_INTERNAL_STORAGE);
    }

    public static boolean isFlyme() {
        try {
            final Method method = Build.class.getMethod("hasSmartBar");
            return method != null;
        } catch (final Exception e) {
            return false;
        }
    }
}