Android中遍历文件夹、比较文件类型测试
16lz
2021-12-04
package casper.test;import java.io.File;import java.util.ArrayList;import android.app.Activity;import android.os.Bundle;import android.util.Log;public class TestGetFileActivity extends Activity { /** Called when the activity is first created. */private static final String bookDirectory = "/sdcard/files/";private ArrayList fileList ; private void getAllFiles(File directory){ File files[] = directory.listFiles(); if(files != null) { for(File f:files) { if(f.isDirectory()) { getAllFiles(f); } else { this.fileList.add(f); } } } } private Boolean getBookType(File f){ String end = f .getName() .substring(f.getName().lastIndexOf(".") + 1, f.getName().length()).toLowerCase(); if (end.equals("rmvb")) return Boolean.TRUE; else return Boolean.FALSE; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); fileList = new ArrayList(); getAllFiles(new File(bookDirectory)); for (int i = 0; i < fileList.size(); i++) { String path = fileList.get(i).toString(); Log.v("aaa",path); if(getBookType(new File(path))==Boolean.TRUE) { String tempBookName = path.substring(path.lastIndexOf("/")+1,path.length()); Log.v("aaa",tempBookName); }} } }
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