Android 文件管理
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package com.explorer.utils;
import java.io.File;
import com.explorer.R;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.widget.Toast;
public class OpenFiles {
/**
* 打开sdcard上的文件
* @param context
* @param file 要打开的文件
*/
public static void open(Context context, File file) {
if (file != null && file.isFile()) {
String fileName = file.toString();
Intent intent;
if (checkEndsWithInStringArray(fileName, context.getResources()
.getStringArray(R.array.fileEndingImage))) {
intent = OpenFiles.getImageFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingWebText))) {
intent = OpenFiles.getHtmlFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPackage))) {
intent = OpenFiles.getApkFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingAudio))) {
intent = OpenFiles.getAudioFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingVideo))) {
intent = OpenFiles.getVideoFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingText))) {
intent = OpenFiles.getTextFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPdf))) {
intent = OpenFiles.getPdfFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingWord))) {
intent = OpenFiles.getWordFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingExcel))) {
intent = OpenFiles.getExcelFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPPT))) {
intent = OpenFiles.getPPTFileIntent(file);
context.startActivity(intent);
} else {
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
} else {
Toast.makeText(context, context.getString(R.string.not_file), 1).show();
}
if (file != null && file.isFile()) {
Intent intent = getFileOpenIntent(context, file);
if (intent != null) {
context.startActivity(intent);
} else {
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
} else {
Toast.makeText(context, context.getString(R.string.not_file), 1).show();
}
}
public static Intent getFileOpenIntent(Context context, File file) {
Intent intent = null;
String fileName = file.toString();
if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingImage))) {
intent = OpenFiles.getImageFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingWebText))) {
intent = OpenFiles.getHtmlFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPackage))) {
intent = OpenFiles.getApkFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingAudio))) {
intent = OpenFiles.getAudioFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingVideo))) {
intent = OpenFiles.getVideoFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingText))) {
intent = OpenFiles.getTextFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPdf))) {
intent = OpenFiles.getPdfFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingWord))) {
intent = OpenFiles.getWordFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingExcel))) {
intent = OpenFiles.getExcelFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPPT))) {
intent = OpenFiles.getPPTFileIntent(file);
} else {
// do nothing
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
return intent;
}
private static boolean checkEndsWithInStringArray(String checkItsEnd,String[] fileEndings) {
for (String aEnd : fileEndings) {
if (checkItsEnd.endsWith(aEnd))
return true;
}
return false;
}
// android获取一个用于打开HTML文件的intent
public static Intent getHtmlFileIntent(File file) {
Uri uri = Uri.parse(file.toString()).buildUpon()
.encodedAuthority("com.android.htmlfileprovider")
.scheme("content").encodedPath(file.toString()).build();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "text/html");
return intent;
}
// android获取一个用于打开图片文件的intent
public static Intent getImageFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "image/*");
return intent;
}
// android获取一个用于打开PDF文件的intent
public static Intent getPdfFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/pdf");
return intent;
}
// android获取一个用于打开文本文件的intent
public static Intent getTextFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "text/plain");
return intent;
}
// android获取一个用于打开音频文件的intent
public static Intent getAudioFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "audio/*");
return intent;
}
// android获取一个用于打开视频文件的intent
public static Intent getVideoFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
// intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "video/*");
return intent;
}
// android获取一个用于打开CHM文件的intent
public static Intent getChmFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/x-chm");
return intent;
}
// android获取一个用于打开Word文件的intent
public static Intent getWordFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/msword");
return intent;
}
// android获取一个用于打开Excel文件的intent
public static Intent getExcelFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.ms-excel");
return intent;
}
// android获取一个用于打开PPT文件的intent
public static Intent getPPTFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
return intent;
}
// android获取一个用于打开apk文件的intent
public static Intent getApkFileIntent(File file) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file),
"application/vnd.android.package-archive");
return intent;
}
}
import java.io.File;
import com.explorer.R;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.widget.Toast;
public class OpenFiles {
/**
* 打开sdcard上的文件
* @param context
* @param file 要打开的文件
*/
public static void open(Context context, File file) {
if (file != null && file.isFile()) {
String fileName = file.toString();
Intent intent;
if (checkEndsWithInStringArray(fileName, context.getResources()
.getStringArray(R.array.fileEndingImage))) {
intent = OpenFiles.getImageFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingWebText))) {
intent = OpenFiles.getHtmlFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPackage))) {
intent = OpenFiles.getApkFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingAudio))) {
intent = OpenFiles.getAudioFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingVideo))) {
intent = OpenFiles.getVideoFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingText))) {
intent = OpenFiles.getTextFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPdf))) {
intent = OpenFiles.getPdfFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingWord))) {
intent = OpenFiles.getWordFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingExcel))) {
intent = OpenFiles.getExcelFileIntent(file);
context.startActivity(intent);
} else if (checkEndsWithInStringArray(fileName, context
.getResources().getStringArray(R.array.fileEndingPPT))) {
intent = OpenFiles.getPPTFileIntent(file);
context.startActivity(intent);
} else {
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
} else {
Toast.makeText(context, context.getString(R.string.not_file), 1).show();
}
if (file != null && file.isFile()) {
Intent intent = getFileOpenIntent(context, file);
if (intent != null) {
context.startActivity(intent);
} else {
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
} else {
Toast.makeText(context, context.getString(R.string.not_file), 1).show();
}
}
public static Intent getFileOpenIntent(Context context, File file) {
Intent intent = null;
String fileName = file.toString();
if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingImage))) {
intent = OpenFiles.getImageFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingWebText))) {
intent = OpenFiles.getHtmlFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPackage))) {
intent = OpenFiles.getApkFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingAudio))) {
intent = OpenFiles.getAudioFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingVideo))) {
intent = OpenFiles.getVideoFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingText))) {
intent = OpenFiles.getTextFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPdf))) {
intent = OpenFiles.getPdfFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingWord))) {
intent = OpenFiles.getWordFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingExcel))) {
intent = OpenFiles.getExcelFileIntent(file);
} else if (checkEndsWithInStringArray(fileName,
context.getResources().getStringArray(R.array.fileEndingPPT))) {
intent = OpenFiles.getPPTFileIntent(file);
} else {
// do nothing
Toast.makeText(context, context.getString(R.string.can_not_open_file), 1).show();
}
return intent;
}
private static boolean checkEndsWithInStringArray(String checkItsEnd,String[] fileEndings) {
for (String aEnd : fileEndings) {
if (checkItsEnd.endsWith(aEnd))
return true;
}
return false;
}
// android获取一个用于打开HTML文件的intent
public static Intent getHtmlFileIntent(File file) {
Uri uri = Uri.parse(file.toString()).buildUpon()
.encodedAuthority("com.android.htmlfileprovider")
.scheme("content").encodedPath(file.toString()).build();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "text/html");
return intent;
}
// android获取一个用于打开图片文件的intent
public static Intent getImageFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "image/*");
return intent;
}
// android获取一个用于打开PDF文件的intent
public static Intent getPdfFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/pdf");
return intent;
}
// android获取一个用于打开文本文件的intent
public static Intent getTextFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "text/plain");
return intent;
}
// android获取一个用于打开音频文件的intent
public static Intent getAudioFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "audio/*");
return intent;
}
// android获取一个用于打开视频文件的intent
public static Intent getVideoFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
// intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "video/*");
return intent;
}
// android获取一个用于打开CHM文件的intent
public static Intent getChmFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/x-chm");
return intent;
}
// android获取一个用于打开Word文件的intent
public static Intent getWordFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/msword");
return intent;
}
// android获取一个用于打开Excel文件的intent
public static Intent getExcelFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.ms-excel");
return intent;
}
// android获取一个用于打开PPT文件的intent
public static Intent getPPTFileIntent(File file) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
return intent;
}
// android获取一个用于打开apk文件的intent
public static Intent getApkFileIntent(File file) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file),
"application/vnd.android.package-archive");
return intent;
}
}
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