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Android内部存储文件之数据读取

发布时间:2015-08-01 00:00:27
1:Android开发中,离不开对文件的操作,因为文件可以存储大量数据,掌握相关技术可以为开发带来许多便利,一下便是我们的应用在手机或者模拟器上的内部存储位置。 2:通过一个简单的程序实现对android应用的内部文件的读取操作,页面如下: 3:示例代码如下:packa ...

1:Android开发中,离不开对文件的操作,因为文件可以存储大量数据,掌握相关技术可以为开发带来许多便利,一下便是我们的应用在手机或者模拟器上的内部存储位置。

  Android内部存储文件之数据读取vss88KYVu3bt29e/ecOXOo0Y/BVatWXX311XfccYdarX755ZdffvllYdLu3btZlm18P3/BgQMHbrrpJiL69ddfmxxpnpubW1hYmJiYSOJ0zKxZs2bKlClExGfKn3/++a9//Ss/qVW7rotUzL8jpEVPPvnkk08+2bjc4XAsW7bsX//6l8fPC7+r0dxeFWm7oHOoq6urq6sT3rpcLv6xxR5EegoAdZxGMyISbpLh8dNv27ZtEydO3Lx5M59+he+j0tLSRYsWjR8/3v376I033vj444+F8WNEZDQa582bN3Xq1FOnTvElje+M8tJLL7399tvuy7HZbEuXLv3LX/7i/TIXIXM02WLGE24/JUaaWbhw4aZNm4S3HgMZWrXrukjF/DtCfOdwOMrLy/ft2/fOO+/88Y9/fOutt5o8hfWvGl72qtjbBeA3JiMjo/HFXBaL5fz58+1SIS80Gk3Pnj31en19fX1paan7rfI9KJXKfv366XQ6o9GYnZ3tY1OVTCbr3bt3VFSU2WzOzs52/8R2cAaDITU1taqq6uTJk01urO+7rotUzL8jpINUw8te7SDbBWJr+zO/xTBmzJjGz4Q0mUxXUpoBAAC60tJMB2o0AwCAzgdpBgAARIQ0AwAAIkKaAQAAESHNAACAiJBmAABAREgzAAAgIqQZAAAQEdIMAACICGkGAABEhDQDAAAiQpoBAAARIc0AAICIkGYAAEBESDMAACAipBkAABAR0gwAAIgIaQYAAESENAMAACJCmgEAABEhzQAAgIiQZgAAQERIMwAAICKkGQAAEBHSDABAlyCVSm+44YbFixefOHHCarXa7faioqL//e9/jz76aEREhHjrlYm3aAAA6CD69eu3cOHC6667Ti6XC4UJCQkJCQm33Xbb7NmzZ82a9f3337tcroCvGmczAACd3PXXX79169abbrrJPccIJBJJSkrK8uXL33zzTYkk8ElBmpCQoFarPUodDkdtbW3AVwYAAG1XXV3te/CQIUM2bdoUGRnpPUwqlY4ePZqIduzY4V+tDAaDQqHwKKyvr8fZDABApxUaGrp48eKQkBD3QpfLZTQay8rKbDYbx3FCuUQieeWVVzIyMgJbh2b7Zp544gmHwxHYlQEAQNu9+uqrPkbeeeedw4cPZxhGKDl8+PCcOXP27dtnt9uTk5OfffbZBx54QCa7kAsUCsVrr712xx13OJ3OQNW22TQzbNgwp9MpkUhYluVL+DY74S0AAASW+1du2zEMM3XqVPcck5mZefvtt5vNZolEIpPJsrKyHnnkkRMnTsyfP1/olbnhhhvS0tJOnToVqGo0m2ZCQ0ORUQAArlwJCQm9evUS3rpcrqeeespsNhPRyJEj58+fv2PHjrlz537wwQeTJk0aNWoUH6ZSqUaPHh2MNBMSEuLeZgcAAKJiGIb/1uXPP9y/gYVJrRIXFxcaGiq8PXbs2MmTJzUajUaj2bNnz969e1999dVDhw6tWbNm7dq1QpohIvfk1HbNphmNRsOfzfAncY1bzwAAIOCEL17hrXuHRau+ftVqtfsI5pKSEiJKSUl5/vnn161bd8cddzAMM2zYsDVr1pSUlHAcJzSvuSentms2zTAMI5VK+df8C+EtAACIxOOb1uN7uFWsVqvD4RAGGaekpBBRUVHR1VdfPWXKFIZhnE7n9u3b+UnuXTitGjDdombTDE5ZAAA6Ao8WM/d84F1hYWFNTU10dDT/tlevXiNHjty7d++99947Z86ciIiIb7755ueffw4JCbnzzjvdZzx58mSgKk/ez2YCuBoAAPCbf1/IZWVlBw8evPnmm4WFfPHFFxMmTDh+/Pg999zDF6pUqgULFgwYMECYy2w279y5s+11FuCUBQCg0/rss8/cb1PWt2/f7du3P//883379k1NTb399ts3btzoMeh5/fr1RUVFAawDk5GRodfrPUotFsuqVasCuBoAAAiUbt26+RipVCrXrVt34403epRzHMdxXOPOEavVOnjw4NOnT/tRqzFjxmi1Wo9Ck8mEvhkAgE6roaHh0Ucf3b17t8FgcC9nGKZxQ1xDQ8MTTzzhX47xArkEAKAzKyoq4vtjvF95Yzabn3322eXLlwe8AjibAQDo5I4ePXrDDTe89tprU6dObfwsAI7j9u3b99xzz+3du1eMtSOXAAB0fmVlZU8//XRaWtrMmTOPHj3KF9bV1f3rX/+65pprRo0aJVKOITw9EwCg07vuuuuGDx8uvK2oqOBfNDQ0GI3G0aNH80+aqa2t9RiZFhBoNAMA6ORuu+225557rnF5ZGTk22+/LbwtLCxcunRp8NIMAAB0Dna73WKxtBjm8ZSzQEGaAQDo5ObNm7do0aIWw1wul91uD/jakWYAADo5s9nMP2amXaADBgAARIQ0AwAAIkKaAQAAESHNAACAiJBmAABARKKPNLtl8hSxVwEAcEXYuPLL9q5CO8DZDAAAiAhpBgAARIQ0AwAAIkKaAQAAESHNAACAiJBmAABAREgzAAAgIqQZAAAQEdIMAACICGkGAABEhDQDAAAiQpoBAAARIc0AAICIkGYAAEBESDMAACAipBkAABAR0gwAAIgIaQYAAEQk+kOaAQCgg1OplAkJ8RKJ5PTpvIAvHGczAABdl1wuDw0NkUikFouVYZiQEG3AV4GzGQCArkihUCQkxIeGhpSXV5hM1aWlZeXlFaGhIQFfEdIMAEDXIpfLQ0K0BkNiSIhWIpHodKFEVF5eUVxcWlNjDvjqkGYAALoKpVIZFqazWKwmU3VNjVmpVERERISHh5WVlVdVVbEsJ8ZKkWYAADo/uVyekBDfrVuMTCarr2+ora2trq6x2WzV1dXFxSUcJ0qC4SHNAAB0ZnK5XKVSsixXW1srk0l1ulC1Wu10qiorq8zm2iBUAGkGAKDTYhjGYOje0NBgMtVUV9eYTNV8f4zZXMuybHDqgDQDANBpcRxXUWEcOLB/cjJVVZnOnSusq6sTqQ+mOUgzAACdmdlcW1paxnFcRUUlEaPRaIiIYfiLJjm+V4ZhGCKGiDiOJSKr1RbAcx2kGQCATq6+viE52aDXh2dn5zgcjoSE+Pj4OJZlz50rLC+vCAkJ6dmzh1wuq6kx5+bmMQwjl8sbGhoCtfZgpxmXy9lgtbqcDolUplRrZHI5ghHcRYIB2pHVajt5Mru+vj45OSk+Po7juDNn8ktLy3S60B490hQKeVVV1alTuSzL9u6dfu5c4RWZZliWPXfqeHVFmXuhVhee2n+wVOb54UQwgjtTMED7YlnWZDJFRkbodKGRkREMw1RX10il0sTE7omJCVKp1Ol01tTUxsbGREVFhIaGnjtXFMC1MxkZGXq93qPUYrGsXbs2ICu4ZfIUIuJY9uSBXxwNDRKptFtSmlKtttXVlZ07w3GcVCbrN3KsRHLp7moIRnBnCgYQbFz5ZUCWExER0ar47t0TUlKSfI/PyjpaV1fXykrRmDFjtFrPW6KZTKYgnc2UFxU4GhrkSmWfEWP4T2BYZExUfPfjv+50OZ2VJUXRCQYEI7hTBgN0cUH6zaVQq+NTeqb0HeT+K08mV0TGxRORqbwUwQjurMEAXVyQzmb00d2aLFdrQ4nI3mBDMII7azBAFxfskWYcyzqdDu7iiGybpZaIqJlLhRCM4M4UDNA1BS/NWGtrinKzrbU+3WUawQjuTMEAXVmwhgAU5hefPU1EIeERMd2TFCr1hfKigqrS8whGcCcOBujigpFmHPYG/jMZn9IzJjHZfZImJLQKwQjuvMEAEIw0Y62t4V9Ed/ccuN34tjkIRnBnCgboCKqra/LyzvoeH8BbAFBw0gx38W6gzOXlrMtVdu4MghHciYMBOoK6ujo/LrcMlGBcN6MOCeFfVArN1hxnMdec3P8L63LRxXuCIhjBnS8YAIJxNqNUa7W6cIu5uvD070W52TKFwtHQQERR8YlqbWjh6ZMupxPBCO6UwQAQpLsA9Bg0PCq+OxFxHOdoaJArlKn9h3Tv0VsdEsoH8D8DEYzgzhcM0MUF6daZPI7jWJeTYSQSqbTFGRGM4M4UDEDtd+vM4GjnW2fyGIbx/R7pCEZwZwoG6LJwu3IAABCR6Gcze10WsVcB0DGNlHo2IAB0QTibAQAAESHNAACAiERvNEO7AQBAV4azGQAAEBHSDAAAiAhpBgAARIQ0AwAAIgrSXQCqjWVEFBIWIZO3fNU0ghHcmYIBurhgnM1wHJd/8mj+yaP11pYfeIBgBHemYABAoxkAAIgIaQYAAESENAMAACJCmgEAABEF9XkzPI5j6y0Wl9MhkyuUGi3DMAhGcBcJBuiCgptmODJVlBb8fkwoYBgmtf+QUH0kghHcyYMBuippQkKCWq32KHU4HJMnTw7ICv79/f+IqOzcGSKymKsrS87rIqJiuieFhOttljrW5TKVl4SGRypUKmEWBCO4MwUDCB68e1JAlvP2228HZDmBZTAYFAqFR2F9fX1Qz2YabNb0IRma0DD+bXRC0pljh2qrq86cyOp/9R89WhsQjODOFAzQZQV1CEBCWi/hM0lEDMMYevcnIpfTWVdjQjCCO3EwQJcV1DSjDgn1KJErlGptKBGZyksQjOBOHAzQAen14Xp9uNhraf8BzWFRMURkrjIiGMFdLRigHUml0qSkxKSkRKlUKuqK2j/NKFRqInLa7QhGcFcLBmhHMTHRWq1Wq9XGxESLuqL2TzNSWSsSKYIR3JmCAdqLQqFITExgGIZhmMTEhMYjxAKo/dOMvb6eiBiJTzVBMII7UzBAe0lIiJPJZCzLsiwrk8kSEuLEW1c73AXAQ62pkohCwyMQjOCuFgzQXsrLKyoqLvUgsiwn3rqC+pur4vw5jxKnw8F3lkbExiMYwZ04GKBDsVisdXUW4Z/VahVvXUFNMzXG8tKCMxx3IW2yLteZ41lEJJFKw6I8+6AQjODOFAzQZQW10Syl3+CzJw6XFZ7VhOhYlrXVmfnyHgOHM4xnwkMwgjtTMECXFbwPg0wuD4uM7nvVNWptqMVczX8m1SG6PiNGa0J1CEZwJw4GaF8KhSIlJUmr1bgXhoRoU1OTU1OTQ0K07uVarSYlJSmAY8+YjIwMvV7vUWqxWNauXRuQFdwyeUrjQpZlOdbFSKQSHwbkIBjBnSkYurKNK78MyHIiInwdYyKVSmNiohMTE2Qy2dGjx+vqLHx5SIi2X78+crmciBwOx4kTv7tPGjiwv9PpLCw8X15e4XK5fFzXmDFjtFqtR6HJZGqfkWYSiYR8/kAiGMGdKRggaPT68KSkRK1WyzAMy7Luk2JiovkcQ0RyuTwmJlpIMzyFQpGamhwbG11QUGgyVbelGvhsAACAiEQ/m9nrsrQcBNAZjZR6NiAABJPJVG021wqNZu6TysuN0dFRQqNZeXmFx7x2u72wsKi83Oh7o1lz2v/yTAAAEInL5SopKa2srEpIiHO/BrOuru7Eid/5u5mVl1e4t5hxHFdSUnr+fIk9QLfmQ5oBAOjk7Hb72bMFHoX8hZmNgy0Wa+PgthA9zaDdAACgK8MQAAAAEBEazQAAuhytVsMwjPCW4ziLRazbmiHNAAB0OTEx0XFx3YS3JSWlge2PcYdGMwCALuf8+RKn0ymRSCQSidPpPH++RLx1Ic0AAHQ5dru9sPA8x3EcxxUWng/U2OUmIc0AAHRF5eUVFovFYrE0vjYzsNA3AwDQFblcroKCQv6FqCtCmgEA6KLaeE9MH6HRDAAARIQ0AwAAIgp2oxnrcjXYrE6nQyqVqTRaiVSKSER27kiALi54aYbjuKLc3ytLzrsXRicY4lPT3S9GRSQiO00kABCRNCEhQa1We5Q6HI7JkycHZAX//v5/RMRxXE7WfnOVUSKVxiX3iEpIVKo0FnO1tbbGWlsTERsnxCMSkZ0jEqCxB++eFJDlvP322wFZTmAZDAaFQuFRWF9fH6SzmbJzZ211Zplc3jfjGr55ISwyJjKu+8n9u2pNlbWmylB9JCIR2ZkiAYAXjCEALMuWFuQRUfeefdybsBUqVbekVCIylhQhEpGdKRIABME4m7HV1fIvdBHRHpMiuiVIZXKpTI5IRHamSAAQBCfNmImIYRiJxPPkSaFURScYEInIThYJAIJgNJo5HXYiUqo1iERkF4kEAEFQLs9kGCLiOA6RiOwqkQBwUTDSjEKpIqIGW8uPZkMkIjtHJAAIgpFmNCE6/oXL6fCY5HI6ak2VFnMNIhHZmSIBQBCMNKO8eCsOU3mpx6TywoK8Y4cqzhcgEpGdKRIABMFIMwzDGNL7EVFR7ql6S51QXltdVVZ4lohiE1MQicjOFAkAAiYjI0Ov13uUWiyWtWvXBmQFt0yewr8ozDlZWXqeiNTaUHVoqKWmmm/jjk/tGdM92X0WRCKys5yt8wAAIABJREFUc0QCeNi48suALCciIiIgywmsMWPGaLVaj0KTyRS8NENE5sqKotxse0M9/1al0Rp69dOEhjWeC5GI7ByRAO6QZi4RKc3wWJeL41iGkbR473REIrJzRALwumaaaYeHNEukUiKfPpaIRGTniAToyvD0TAAAEBHSDAAAiAhpBgAARIQ0AwAAImqHIQAAABAEY8Zc3cYlsCx75Mhxi8XSloUgzQAAdFocx7Es69+8jZ+r5B+kGQCATotl2ezsnPr6ej/mHTx4IMMwba8D0gwAQGdWX19vs/mTZjiOC0iawRAAAAAQEdIMAACICI1mAABdglqtCg8PczicRmOlRCKJjo6SSPjnjpPT6ayrq6uvbxBjvUgzAABdQmhoSGpqisViMRorZTJpcrJBLpcLU51OZ1lZeUFBod8j05qDNAMA0HWdOnXa4XCo1erExIT4+DiOo/z8AD8EFn0zAABdV21tbXV1TUlJaXZ2Dsdx8fHd3E9xAgJpBgAAqLa2zm63SySS0NCQwC4ZaQYAAIjjOJfLRUTSQD+mD2kGAABEhDQDAADEMAx/HsOf0wQQ0gwAAFBoaKhCoWBZrra2LrBLxoBmAICuKzQ0VKlUaTTqxMQEhmHOny9xOByBXQXSDABA19WrV0/+hdPpLC4uOXeuMOCrQJoBAOgSamvr8vLO8icrTqfr7NkC4YkyDoejrs7S0HBl3mxm48ovxV4FAAC0yGa79EQAlmXLyyuCs14MAQAAABEhzQAAgIjQNwMA0GlJJJLBgwdyHOfHvFKp1L8ZPSDNAAB0Tvwt/RmG8e9ZyxzHsSxL1NZMgzQDANA5HTlyvM3L4IRRA35rhzRjsVjsdvvFPAkA0KlIJBKGYeRyeUhIgG913FoWi6V9K8ALdpphWdZkMhGRy+UKSKsfAECHwlykVqsDfrfjK1Gw04zL5aqtrVUqlUFeLwBAMNntdpZlkWYo+AOaOY4L+A1zAAA6GofDgX4BHq6bAQAAESHNAACAiJBmAABAREgzAAAgIqQZAAAQEdIMAACICGkGAABEhDQDAAAiQpoBAAARIc0AAICIkGYAAEBESDMAACAipBkAABAR0gwAAIgIaabTqqysfP7559esWROoBbpcLv7FyZMn33vvPavVyr91Op1CjN1u//bbb0tKSnxZoNVqff755z/++ONA1TA4Dh48aDabA7hAu91+5syZtixh3bp1WVlZwh/Iw86dO59//vlz5861ZRUAfmuHhzRDcNTX1+/cuTMuLs698Ouvv/Zl3jvvvNPj+bJPP/203W7/7LPPiCg3N3f58uUPP/ywRqMpLy8fP378Rx99dNVVVxFRUVHRggULDh8+PG/evBbX4nQ6d+7cKaQrIqqpqXn//fd9qeGjjz7avXt34e2DDz7oy1zeLV++vMWYRYsWff3110OHDl28eDHDMG1fqdVqHT9+vM1m27p1a2hoqB9LcLlcf//734nol19+4R+iZbPZvv766wkTJsTHxxNRUVHRzp07H3300bbXFsAPSDNdy6JFi3wJu/766z3SzIABA5YsWXLu3DmDwSAUWq3WBx98UKFQDBkyhC85efIkEd14443+Vc9qta5du9aXyEmTJrmnmezsbCJKTk7242GFLpcrPz/fx+CHHnro66+/PnTo0K5du/7whz+0dl2NaTSaUaNGbdmy5Zlnnlm2bJkfS+D3+ejRo1UqFV9y4MCBJUuWhIeH33fffW2vIUAbIc10RatXr+afk52dnT1z5syJEydOmzaNnzR//vxdu3Y1nuW+++5rnGZUKtXgwYOnTp2qUCj4kt27dxPRgAED2lK9qVOnPvbYY81N3bJly2uvvdbkpP/+97/+pRn+VMwXer3+1Vdf/ec///nqq69u375dJgvAJ+j111/PzMw8fvz4kSNHBg0a1NrZly5dSkSPPPKIUMKnq3HjxrW9bgBthzTT2Qi/zY8fP05EZ8+ezcvLI6LY2FjhBKV79+4SyaVuueTk5NjYWP4138ziobKykuO4zz//PDExsbKysqCggIjOnDmTnJz8wgsvSKXSyspKvV5PRFu3biWi4uLimpoaj4WkpqbyrUxWq5XvvOF7C4xGY15enkQiSUlJ4SNDQkK8ZIsWW5YcDkdubm5kZGRMTIz3SP/cfvvtn3zySVVV1apVq+6//35fZmnxhOnGG2/csGHDrFmzPvjgAy9tcY1P18xm865duxQKhZCfjEbj0aNHe/Towf9FANod0kxnU1VV5d5Usn//fv7tG2+8MX78eD8WyLLsTTfd1LhcOAHirVu3juM4juOIqMlugH379vFfkUePHn366aeF8vz8/Pvuu0+r1e7YsYMvKS0t9dLHXlRU5L3ChYWFDz300DXXXPPuu+96j/SPRCJ54YUXXnnllffff//uu+/25YTG44/SnIqKCu95a+PGjdHR0e4l3333HRE9/vjjwu8GvofJZrMJ3WO//fYbEb377rtpaWnu8w4aNOjWW29tsVYAbYQ009nodLo33niDiLKzs1esWNGzZ8+HHnqIiAYPHuzfAhmG+eSTT4S3H3zwAd8Z8OKLLwrnH0QUGRm5YcMGIpo4ceLw4cP5QqPRuGjRIp1O98ILLwjfgz169OBreP78+cWLF0dHRz/zzDPuX9YrVqxYsWJFqyr517/+la8qv1giErqLfNlAfnbf/fLLL0TkcDi2bt168803txgv/FGI6PTp0998841UKn399de9nLjwu46IZs6cGRYWJizHPaa+vv7TTz8lottuu40vqaur49PM+fPnV69e7R585MiRI0eOuJc4nU6kmc5t9OiRTqfTbndYrda6OktNjdlisfC/BYMJaaazUSqV/FnLoEGDVqxYMXToUP9OYgQMw4wYMYJ/ffr0aT7HENGNN94YHh5eWloqDGb78ssviWjGjBnCt6HJZFq0aNGQIUPc6xAVFcW/NZvNixcvTkpK8qhh//793fsVqqurly5dGhsb+8ADDwiFHo177qdW/ODgzZs3t3jew3vppZc8zsy8czgcP/74I/964cKFN910U4tDzoQ/ChGxLLtixQqXy/WHP/zBSwPgmTNnFi1apNfrJ0+e3FzMsmXL+K8MofP/nXfeIaKpU6f+6U9/EsI+//zz5cuXz5s3b9SoUe6zy+Vy79WGKx3DMHK5XC6Xa7Wa6OgolmVttvqKCmN5eYXdbg9aNZBmwFd5eXl/+tOf0tLSRo8ezQ+M/uSTT5YuXfq///0vISHBaDQWFxcnJia6/+I2mUxElJ6e3qoVjRs3zv1b0m63L126tFevXu6FXvCJ8NSpU6dOnfIlnu9e8r16WVlZRNS3b99z586ZTKazZ8+mpqb6PrtEIrnrrru+/fbbn3766c4772wubMuWLUR0xx13NBdQW1v7+eefu5ecO3du7dq1crn8kUceEQZlEBHfRxUfH+8xehC6GolEotVqtFpDQkJcSUnZ+fPFzV1rFVhIM9AyjuM2bdr02muv6XS6L7/8ku/nJ6Jp06b9+OOP06ZNW7t27U8//UREHt/Xubm5RJScnBzM2vJpYPXq1REREb7Eu38j+4K/smfGjBm5ubkLFixYvnz566+/3qol3H333d9+++1HH300adIk97EYApZl//Of/xDRLbfc0txC5syZ4/7W5XLx52Qvv/xya7cIuhq5XJ6YmBATE5WXd9ZkqhZ7dUgz0LKnnnpq//79ERERK1eu1Gg0QrlUKp03b97Zs2edTid/MX9+fn5VVZXw/c53Prt34TRHGD5ARKdOnTp79qwwqaqqiojKysrcC4koISGh8fcpy7J8fGJiYkAun/RQUlJy6tQpqVQ6aNCgnj17LliwYO3atbNmzWrVN3tKSkpKSsrZs2e3bdt2ww03NA747bff6urqdDpdcxk6Kytr586dKpVKJpPV1dURUU1NTUNDQ+/evSdMmODXlkEnlJV1RCaTqVSqkBBtWJhOpVIJP2sYhlGpVH369Dp3ruj8+WJRO2yQZrqE8+fPx8bGCt3s06ZN4087qqurieibb77Zs2cPP4m/ztHD3/72twULFrz//vsKhYLjuGuvvXbEiBF8v/TAgQMHDhz422+/2Ww2PnjdunUPP/ww/3rz5s1E5H4dZWO1tbU7d+6cN2/e/Pnzo6KiiGjDhg38aAJ3p06duueee9xLVqxY0bg5jr+ngMFgECPHENEXX3xBRI899phUKg0NDb366qt//fXXvXv3tupSTYZhXnvttUcfffTvf//7H//4x/9v7z7jo6gWv4Gf2ZpeSCMJCQmJdFC4wkWpUkRBIGIo0uUCoSj4iRRpCgi5gIigSNMbH5BegoCGgNKigDQRhUAggSSQHtI2u9k687w417nz3002m2wm6Ob3fbU7OzPnbMT57ZlTxmysGsdxK1euJITExsZW9y3o32fr1q2rV6+m/8maNGly4sQJvV4v0heHvyO1WkMIKSsrz88nDMO4ubkGBjb19fXhw0YikTRvHqJQyB8+zBQvaRAzDu7KlStvvvnm/fv3jxw5EhISQjfS20q8kpIS2uyoTnh4OD/Y7PDhw6tXr965c6dwGZvr168TQjZs2PDuu+9u27Zt3LhxUqm0vLxcrVY7OTkJG0BCdEhYampqbGysVCqVSCQ6nY4Q0rdvX2GiPHnyZMmSJWFhYQsWLBAeXmV60aZMRUXFtm3brHwjM0OHDjVbladKpaWl3377LSGE75afPn36pUuXPv/889quCNChQ4dWrVqlpqZ+8sknZt/ru+++y8nJcXZ2tjKGbfr06d7e3u3btxduVCqVdNYtgCWO41SqCpUq7fHjnPDw5l5envQXCcMwgYFNGYZJT39Y40nqBjHjgIxGY0pKCv3dTW80jR49WjhXMTk52fpNHmEXC8uyfF86x3G0Z0KlUt25c4du9Pb2jomJ6dKlS+fOnSdOnLhjx46ffvqpT58+ly5dIoRERUWZnVyn0yUnJ2/bto2fsTh+/Pjp06crlcrbt28TQvr27cuPbSOE0CExoaGhwo3VycnJIYQUFxd/+eWXNe7M69Onjy0xQ0cYDx48mB8h1qZNG2dn54cPH2ZmZjZv3tz2EhmG2bhx4yuvvHLw4MH+/fv/4x//oNufPHlCFyhbtWqVlRk5vr6+M2fONNv4008/sSxruTP9D3HixIknT56YfRQSElKr8Qvw9xIcHKRWq9VqjcFg4DdqNJqUlLvNmgU3axZE/09nGKZp0wCNpjI3N0+MaiBmHM3ly5dnzZrFv23btu3mzZvNhhgJb9HWSKvV0pk3QsIihg8fvmjRos6dOxNCxo0bt2PHjlWrVvXs2ZNe6IcOHWp27B9//LFw4UL+befOnefMmUNfq1QqYjE7pFY6depE79TZwmQy0XHGtqxZScdxEULeffddfqNEIpk9e/aaNWs2btxIBxPbztfX9/3331+9evX06dMTEhJCQkI0Gs2ECRMIIV26dKmxeWR5c2z+/PnCq4mZ/fv379+/32zjuHHjhF8HHEx4eHOO44xGY0lJaW5unkpVQbdzHPfo0WOtVhsZ2YJPmrCw0IqKCn6feoSYcTS0u8LX1/f5559PSkrq0KGDncNYnZ2djx49Sgi5devW4sWLw8LC+EWUd+zYkZCQIPw57O3tPWjQoMTExDlz5mRkZCgUisjISLMTdurUKSIi4u233w4JCYmOjhYGHl3GxtPTs6ysjLZLCCH0N3hOTg7ffiKEREREVNkgq9WNI/63f3W39YR7xsbGEkLGjRtntojLa6+9tmbNmuTk5JycnCqX6rHijTfe+PXXX0+dOjVy5Mgvvvhi2bJl+fn5rq6udVu/4D//+U+VrZndu3f/8MMP06ZNM5s3QwihnWHgwOjUGX9/Pz8/3+LikocPM7RaHf2osLCI47iWLZ+RSBhCiFQqjYgI//3321X+K7IHYsbReHt7Hzt2LDAwMCcnJykpyf4TMgwTHBxMCFm9ejUhZP369fSt0Wg8ceKEQqF44403hPu/9957iYmJv/zyCyFkwYIFls0mqVRKf1Zbrihz//59Qoifn9/58+f5afNUWlqasFFFJ+vQ1yzL2jgTUyg0NNT2mNm6dWtGRoazs7PlrSpnZ+fRo0fv27dv2bJl9EEJtmMYZuXKlYWFhTdu3Jg2bRo928GDB/nplrXStm3bKrd36NDhhx9+ePHFF836cqBRYRjGx6eJm5tbevpD2oVJCCkqeuLq6tKsWTBtHLu6ugYE+Nf7rTPEjAOq7W9qM+Xl5T/++GOfPn2E807Onj176dKl0aNH8ys0b9q0iS6cZTaZ3NPTc+DAgfTOVW0XILh69So9A307c+ZMft0a3t69e+kcHZ5Wq7Uyz7E6V65coSMOSE3z4a9fv05XQaZj7Sx3mDVr1v79++nTAXr27FmrajAM061bN35QxiuvvIIWBtQXlarC1dVF+FNPqVS0ahWZnv6woKCQbnn0KNvLy8vd3Y0QwjBMs2ZBeXn59TvqDDED5nJzc+Pi4h48eDB37ly6xWQy0XUY9+3b5+LiMmnSpKtXr+7atatnz56Wj5YpKSmhM9gJIefOnbP92TMGgyE7O5thGP5S3rt3b7PVHgkhd+/eNYsZpVK5aNGi2nxFQghhGIZ2BQUHB1sZBJyZmUmnPY4aNYr2P1lydnb+4IMPli9fPn/+/KSkJD4ma5Sfnz9nzhw6iZXeKjxy5Mj169c3bdpk528FAELIzZt/yOUyf3+/oKBA/mayVCp95pkIg8FAJ2ayLJuRkdm+fVv6f4FSqfT19SksLKrHaiBmwBx9cIBwSopUKj158uRPP/304YcfxsfH05/2fn5+a9euNbtA63S6iRMnchwXERGRnp6+cOHCgICAjh072lIufTpAnz59ajvzQyqV1qE1Q/4cUd21a1crO9Alk5999tn33nvPyqlee+21xMTEq1evTpgw4eDBgzXO1qyoqNi4cSN9hLZCodiwYUOXLl3OnDmzYMGCrKysoUOHDh06NDY2FsvDgJ0MBmN2dm5BQVF4eHM/P19+EHNkZIvff79NG/Tl5aqysnIvr//+PPLz863fmLF1uBE0HnQ8Vbt27YQbJRJJ7969k5KS+CfTVFRUXL16Vdi41mq148aNy8nJad++/d69e2kDaPLkyWbTdKpD5+7069eP36LT6TgLRqPR7q/4X6dPnybVx8z9+/ejoqIMBkNkZOTWrVutj81jGObTTz/19PTMzs4eM2aMVqutbs+ysrIvvviiT58+NGOGDh16+vTprl27MgzTr1+/kydPPvPMM4SQY8eO9enTZ/369XRdOAB7GAyG+/fThbP9lUpl8+b/nUjHcVxBQSH/kbu7e/0uq4qYcVh0ukmVi0IeOHCgpKREp9MZjUaTyWQymYxGo1arLSws3LdvH73cm80C4TguJSUlOjo6Pz//2WefnTx5cmVl5ezZs9966y1+MZghQ4Y8fPgwKCho+/btEonk5ZdfnjJlCiFk6tSpVT56mdaQv3zTZz4KHx85YcKELhZqO26YMplMZoN98/PzDxw4QKp5ZMDJkyfffPNNjuMiIyN37txpy/91Tk5O9PGdGRkZgwYNoqPmeBzHPXjwYOHChf369aNLWbdr1+7o0aMffPCBs7Mzv5uPj8+ePXvWrFlDS9yzZ8+AAQPee++91NTUhl+/Hf7ugoMD+dlXHMdlZGQVFf1v7pSvrw/tkiGEPHlSzP8Dk8mkbm6u9VgN3DRzNCzLjhw5slu3bnROpdlTsHr37n3+/Pl169atW7fOykliYmL4f51GozExMXHTpk3FxcUMwyxevDgqKophmOjo6NmzZ9+6dev06dPe3t7vv/8+ISQyMjI+Pp6/ZRQTE6NSqfbv379ixQqZTEZHBDx48ODTTz9t3br15cuXCSFNmzYlhJSWlubk5Li5udG3VEREhOUTMNPS0goLC2v7ZykoKBgyZIhcLm/ZsmVwcLBarabPk+7du7dll/vdu3cXL15MCHnhhRc2bNhg+/rNvr6+x48fHzlyZHl5+RtvvLF06dJhw4YRQi5evLh06VL+iaLPP//8/Pnzq5sXSZs1PXv2PHTo0MaNG00m0/nz58+fP+/q6nry5Mm6DUKDxiksrHnTpgHp6Q9LS//7b+/hw0wPDw+lUkEIkUgkAQH+dKKMyWSiy+gR8t9laepxSU3EjKORSCRyuZyu70sI6dOnj/DTNWvWJCQknDlz5vbt2/wqZDwnJ6cOHTq8+uqr/GOyCCEcx61YsUIul8+ZM2fEiBH8Zc7f33/Pnj379++Pjo5WqVRyufy1115buHCh8OYSwzDz5s3z8vI6d+4cv3RKUFDQpUuX6NR08ucyAfTRZ1qtVtgxExcXZzkE4MCBA2vXrq3tn8Xf379jx463/0QIkUqlb731VpUPNGvVqlVoaOjgwYMnT55c244if3//xMTExYsX5+bm8g8N69ixo0ajYRjmzTffHDNmjDBKq6NQKMaMGRMdHZ2UlEQzfsCAAcgYqBWGYZydndu0aXX37j0aG3q9Pi8vn79d5uPTJD39IW3HVFSo+ZnRTk7O1Z2zLtXo2rWr5TPD1Wp1lXc57KfX6+/evYuOTVEZDIaioqLKykp/f38rf2rhosiEEIZhqrukZmdnBwYGWu+cKCsrszLCymAwCO876fX6wsJCnU7n5+cnnIHPcRytQ3l5eV5eXlhYmGVfemlpaUFBQXh4eN1uH9M7hIQQhUJhJUL0er2dy+mbTCZhM6ioqMjT07NudeY4LjMz09/f33J+T1ZWllarjYyMtPJfh/7FQkNDkVINSa1Wt2zZUqRV5mx8yEWPHi/QFwaD4ebNW7TLUKlUdu78LP+P8+bNP2iDJjg4MDw8jG4sKSm9ffuOxflqLK6Hq6v53baSkhK0ZhyQXC63ZYUuK7lihp8IaYX1Ub

 

3:示例代码如下:

package cativity.cyq.readwriteintemaldata;import android.support.v7.app.ActionBarActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;import java.io.BufferedReader;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.UnsupportedEncodingException;public class MainActivity extends ActionBarActivity {  private final String FILE_NAME = "text.txt";  private Button writrBTN;  private Button readBTN;  private EditText writeEdit;  private TextView showTEXT;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    // final File fileName=new File(FILE_NAME);    writrBTN = (Button) findViewById(R.id.write_btn);    readBTN = (Button) findViewById(R.id.read_btn);    writeEdit = (EditText) findViewById(R.id.write_edit);    showTEXT = (TextView) findViewById(R.id.show_text);    writrBTN.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        try {          /*调用openFileOutput()方法,如果文件存在则只用该文件,不存在,则创建该文件。          MODE_APPEND表示在文本的末尾追加数据,不覆盖原有的数据*          Context.MODE_PRIVATE:为默认操作模式,代表该文件是私有数据,只能被应用本身访问,在该模式下,写入的内容会覆盖原文件的内容          Context.MODE_APPEND:模式会检查文件是否存在,存在就往文件追加内容,否则就创建新文件。          MODE_WORLD_READABLE:表示当前文件可以被其他应用读取;          MODE_WORLD_WRITEABLE:表示当前文件可以被其他应用写入。*/          FileOutputStream fos = openFileOutput(FILE_NAME, MODE_APPEND);          OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");          osw.write(writeEdit.getText().toString());          //osw.write("hello Wrold !");          osw.flush();          fos.flush();          osw.close();          fos.close();          Toast.makeText(MainActivity.this, "写入成功", Toast.LENGTH_SHORT).show();        } catch (FileNotFoundException e) {          e.printStackTrace();        } catch (UnsupportedEncodingException e) {          e.printStackTrace();        } catch (IOException e) {          e.printStackTrace();        }      }    });    readBTN.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        try {          FileInputStream fps = openFileInput(FILE_NAME);          InputStreamReader isr = new InputStreamReader(fps, "UTF-8");          BufferedReader br = new BufferedReader(isr);          StringBuilder sBuilder = new StringBuilder();          String line = "";          while ((line = br.readLine()) != null) {            sBuilder.append(line);          }          showTEXT.setText(sBuilder.toString());          Toast.makeText(MainActivity.this, "读取成功", Toast.LENGTH_SHORT).show();        } catch (FileNotFoundException e) {          e.printStackTrace();        } catch (UnsupportedEncodingException e) {          e.printStackTrace();        } catch (IOException e) {          e.printStackTrace();        }      }    });  }}

原标题:Android内部存储文件之数据读取

关键词:Android

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