android实现片段记忆

本地内存存取

//存储sharedPreference数据
private void saveCurrentdata(Context context,String filename,String brand,String device,String index,String weight,String version){
        SharedPreferences.Editor editor = context.getSharedPreferences(filename,Context.MODE_PRIVATE).edit();
        editor.putString("brand",brand);
        editor.commit();
    }
    
//获取sharedPreference内存数据
 private void getCurrentdata(Context context,String filename){
        SharedPreferences database = context.getSharedPreferences(filename,Context.MODE_PRIVATE);
        currentBrandName =  database.getString("brand","brand");
    }
//从流中获取数据
public String translateJsonToObject() {
        StringBuilder builder = new StringBuilder();
        AssetManager assetManager = context.getAssets();
        BufferedReader reader=null;
        try {
            reader = new BufferedReader(new InputStreamReader(assetManager.open(dataResourceName)));
            String oneLine;
            while((oneLine = reader.readLine())!=null){
                    builder.append(oneLine);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            if(reader!=null){
                try {
                    reader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return builder.toString();
    }