android开发之配置文件

最新推荐文章于 2025-06-04 14:42:08 发布

最新推荐文章于 2025-06-04 14:42:08 发布 · 239 阅读

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本文介绍了Android开发中常见的配置文件处理方式，包括通过.j2se方式读取.properties文件、自定义配置文件的读写方法，以及使用SharedPreferences进行配置信息的存储与获取。

android开发中常到的配置文件处理方式总结：

1.j2se方式：

.properties文件的读取：

public static Properties getNetConfigProperties() {   
        Properties props = new Properties();   
        InputStream in = Utils.class.getResourceAsStream("/netconfig.properties");   
        try {   
            props.load(in);   
        } catch (IOException e) {   
            e.printStackTrace();   
        }   
        return props;   
    } 

使用时： Properties.getProperty("key")

自定义配置文件：

写入：private static void writeConfiguration(Context context,   
            LocaleConfiguration configuration) {   
        DataOutputStream out = null;   
        try {   
            out = new DataOutputStream(context.openFileOutput(PREFERENCES,   
                    MODE_PRIVATE));   
            out.writeUTF(configuration.locale);   
            out.writeInt(configuration.mcc);   
            out.writeInt(configuration.mnc);   
            out.flush();   
        } catch (FileNotFoundException e) {   
            // Ignore   
        } catch (IOException e) {   
            // noinspection ResultOfMethodCallIgnored   
            context.getFileStreamPath(PREFERENCES).delete();   
        } finally {   
            if (out != null) {   
                try {   
                    out.close();   
                } catch (IOException e) {   
                    // Ignore   
                }   
            }   
        }   
    }

读取：private static void readConfiguration(Context context,   
            LocaleConfiguration configuration) {   
        DataInputStream in = null;   
        try {   
            in = new DataInputStream(context.openFileInput(PREFERENCES));   
            configuration.locale = in.readUTF();   
            configuration.mcc = in.readInt();   
            configuration.mnc = in.readInt();   
        } catch (FileNotFoundException e) {   
            // Ignore   
        } catch (IOException e) {   
            // Ignore   
        } finally {   
            if (in != null) {   
                try {   
                    in.close();   
                } catch (IOException e) {   
                    // Ignore   
                }   
            }   
        }   
    }

private static class LocaleConfiguration {   
        public String locale;   
        public int mcc = -1;   
        public int mnc = -1;   
    }

private static final String PREFERENCES = "launcher.preferences";

2.SharedPreferences：

public class SharedPreferencesHelper {
    SharedPreferences sp;   
    SharedPreferences.Editor editor;   
       
    Context context;   
       
    public SharedPreferencesHelper(Context c,String name){   
        context = c;   
        sp = context.getSharedPreferences(name, 0);   
        editor = sp.edit();   
    } 

    public void putValue(String key, String value){   
        editor = sp.edit();   
        editor.putString(key, value);   
        editor.commit();   
    } 

    public String getValue(String key){   
        return sp.getString(key, null);   
    }  

}