/********************************************************************* * Author : Samson * Date : 04/22/2014 * Test platform: * 3.11.0-12-generic #19-Ubuntu * GNU bash, version 4.2.45 * *******************************************************************/ package com.example.listfile; import java.io.File; import java.io.IOException; import android.app.Activity; import android.content.Context; import android.widget.TextView; import android.os.Bundle; import android.os.Process; public class MainActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); int myProcessID = Process.myPid(); File yygypath = this.getFilesDir();//this.getCacheDir(); String yygypathstr = yygypath.toString(); File file = new File(yygypath, "yygytest"); try { file.createNewFile(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } yygypathstr = yygypathstr + " pid is " + myProcessID; TextView tv = new TextView(this); tv.setText(yygypathstr); setContentView(tv); } public void onDestory() { super.onDestroy(); this.finish(); android.os.Process.killProcess(android.os.Process.myPid()); System.exit(0); } } 主要是这两个函数:this.getFilesDir(); 这个是得到当前app文件夹下的files文件夹路径 this.getCacheDir(); 这个是得到当前app文件夹下的cache文件夹路径
结果:
adb shell result:
root@generic:/data/data/com.example.listfile/files # ll
-rw------- u0_a53 u0_a53 0 2014-04-21 13:38 yygytest
root@generic:/data/data/com.example.listfile/files #
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