Android开发10个常用工具类

Android开发10个常用工具类packagecom.zhy.utils;importandroid.util.Log;***publicclassL{{}publicstaticbooleanisDebugtruebug，可以在privatestaticfinalStringTAG="way";idiStringmsg{}iddStringmsg{}ideStringmsg{}idvStringmsg{}publicstaticvoidi(Stringtag,Stringmsg){}publicstaticvoidd(Stringtag,Stringmsg){}{}{}}staticvoideStringtag,Stringmsg)staticvoidvStringtag,Stringmsg)SDCard的，不过我是从来没记录过，所以引入个最简单的，大家可以进行评价是否需要扩充~~packagecom.zhy.utils;importandroid.content.Context;importandroid.widget.Toast;*icclassT{{}icstaticbooleanisShowtrue*publicstaticvoidshowShort(Contextcontext,CharSequencemessage){geToastLENGTHSHORTshow}*publicstaticvoidshowShort(Contextcontext,intmessage){geToastLENGTHSHORTshow}*publicstaticvoidshowLong(Contextcontext,CharSequencemessage){ToastLENGTHLONGshow}*publicstaticvoidshowLong(Contextcontext,intmessage){ToastLENGTHLONGshow}*publicstaticvoidshow(Contextcontext,CharSequencemessage,int{}*publicstaticvoidshow(Contextcontext,intmessage,intduration){}}packagecom.zhy.utils;importjava.lang.reflect.InvocationTargetException;importjava.lang.reflect.Method;importjava.util.Map;importandroid.content.Context;importandroid.content.SharedPreferences;publicclassSPUtils{*保存在手机里面的文件名publicstaticfinalStringFILE_NAME="share_data";*保存数据的方法，我们需要拿到保存数据的具体类型，然后根据类型调用不同的保存方法*publicstaticvoidput(Contextcontext,Stringkey,Objectobject){SharedPreferencessp=context.getSharedPreferences(FILE_NAME,reditorspedit{{{{{{}}*得到保存数据的方法，我们根据默认值得到保存的数据的具体类型，然后调用相对于的方法获取值*publicstaticObjectget(Contextcontext,Stringkey,ObjecttObject{SharedPreferencessp=context.getSharedPreferences(FILE_NAME,{{{{{ject}}publicstaticvoidremove(Contextcontext,Stringkey){SharedPreferencessp=context.getSharedPreferences(FILE_NAME,reditorspedit}publicstaticvoidclear(Contextcontext){SharedPreferencessp=context.getSharedPreferences(FILE_NAME,reditorspedit}publicstaticbooleancontains(Contextcontext,Stringkey){SharedPreferencessp=context.getSharedPreferences(FILE_NAME,}的键值对*publicstaticMap<String,?>getAll(Contextcontext){SharedPreferencessp=context.getSharedPreferences(FILE_NAME,}**privatestaticclassSharedPreferencesCompat{privatestaticfinalMethodsApplyMethodfindApplyMethod;*@SuppressWarnings({"unchecked","rawtypes"}){{e{}}*taticvoidapplySharedPreferencesEditoreditor{{{}{{{}}}}r进行了替代，目的是尽可能的使用apply代替commit首先说下为什么，因为commit方法是同步的，并且我们很多时候的commit配；ContextdValue*常用单位转换的辅助类***{{ionExceptioncannotbe}*ntextcontextfloatdpVal{TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,context.getResources().getDisplayMetrics());}**\杨}\****\杨context.getResources().getDisplayMetrics().density;}*{context.getResources().getDisplayMetrics().scaledDensity);}}packagecom.zhy.utils;importjava.io.File;importandroid.os.Environment;importandroid.os.StatFs;***publicclassSDCardUtils{s{}*blicstaticbooleanisSDCardEnable{ernalStorageStateequals}*staticStringgetSDCardPath{Environment.getExternalStorageDirectory().getAbsolutePath()}*cstaticlonggetSDCardAllSize{{//获取空闲的数据块的数量eBlocks//获取单个数据块的大小(byte)ocks}}*获取指定路径所在空间的剩余可用容量字节数，单位byte*publicstaticlonggetFreeBytes(StringfilePath){{{//如果是内部存储的路径，则获取内存存储的可用容量tgetDataDirectorygetAbsolutePath}longavailableBlockslongstatgetAvailableBlocks-4;}存储路径*publicstaticStringgetRootDirectoryPath(){tgetRootDirectorygetAbsolutePath}}6、屏幕相关辅助类ScreenUtilsContexticsBitmapsRectidutilDisplayMetricswWindowManager*获得屏幕相关的辅助类***{{ionExceptioncannotbe}*WidthContextcontext{}*nHeightContextcontext{}栏的高度*sHeightContextcontext{{Class.forName("ernal.R$dimen");Integer.parseInt(clazz.getField("status_bar_height")context.getResources().getDimensionPixelSize(height);{}}*获取当前屏幕截图，包含状态栏*blicstaticBitmapsnapShotWithStatusBarActivityactivity{}*获取当前屏幕截图，不包含状态栏*publicstaticBitmapsnapShotWithoutStatusBar(Activityactivity){activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);p}}Context}rtandroidcontentpmPackageInfoimportandroidcontentpm.PackageManager;importandroid.content.pm.PackageManager.NameNotFoundException;***{{ionExceptioncannotbe程序名称meContextcontext{{context.getPackageManager();ese{}}*[获取应用程序版本名称信息]*nggetVersionNameContextcontext{{context.getPackageManager();e{}}*}Contextimportandroid.view.inputmethod.InputMethodManager;tEditText闭软键盘**{**publicstaticvoidopenKeybord(EditTextmEditText,Context{InputMethodManager.RESULT_SHOWN);}*publicstaticvoidcloseKeybord(EditTextmEditText,Context{wToken}}droidcontentComponentNameContextIntentrtandroidnetConnectivityManagerorkInfo跟网络相关的工具类***s{{ionExceptioncannotbe}是否连接*nnectedContextcontext{ivityConnectivityManagery{d{{}}}}tcontext{ntextConnectivityManager.TYPE_WIFI;}设置界面ngActivityactivity{tmecomandroidsettings}}eaderavaioByteArrayOutputStreamStreamReaderpURLConnection**{estaticfinalintTIMEOUTINMILLIONS{}*pu