import java.io.File;
import android.content.Intent;
import android.net.Uri;
public class OpenFileUtil {
public static Intent openFile(String filePath){
File file = new File(filePath);
if(!file.exists()) return null;
/* 取得擴展名 */
String end=file.getName().substring(file.getName().lastIndexOf(".") + 1,file.getName().length()).toLowerCase();
/* 依擴展名的類型決定MimeType */
if(end.equals("m4a")||end.equals("mp3")||end.equals("mid")||
end.equals("xmf")||end.equals("ogg")||end.equals("wav")){
return getAudioFileIntent(filePath);
}else if(end.equals("3gp")||end.equals("mp4")){
return getAudioFileIntent(filePath);
}else if(end.equals("jpg")||end.equals("gif")||end.equals("png")||
end.equals("jpeg")||end.equals("bmp")){
return getImageFileIntent(filePath);
}else if(end.equals("apk")){
return getApkFileIntent(filePath);
}else if(end.equals("ppt")){
return getPptFileIntent(filePath);
}else if(end.equals("xls")){
return getExcelFileIntent(filePath);
}else if(end.equals("doc")){
return getWordFileIntent(filePath);
}else if(end.equals("pdf")){
return getPdfFileIntent(filePath);
}else if(end.equals("chm")){
return getChmFileIntent(filePath);
}else if(end.equals("txt")){
return getTextFileIntent(filePath,false);
}else{
return getAllIntent(filePath);
}
}
//Android獲取一個用於打開APK文件的intent
public static Intent getAllIntent( String param ) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri,"*/*");
return intent;
}
//Android獲取一個用於打開APK文件的intent
public static Intent getApkFileIntent( String param ) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri,"application/vnd.android.package-archive");
return intent;
}
//Android獲取一個用於打開VIDEO文件的intent
public static Intent getVideoFileIntent( String param ) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "video/*");
return intent;
}
//Android獲取一個用於打開AUDIO文件的intent
public static Intent getAudioFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("oneshot", 0);
intent.putExtra("configchange", 0);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "audio/*");
return intent;
}
//Android獲取一個用於打開Html文件的intent
public static Intent getHtmlFileIntent( String param ){
Uri uri = Uri.parse(param ).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(param ).build();
Intent intent = new Intent("android.intent.action.VIEW");
intent.setDataAndType(uri, "text/html");
return intent;
}
//Android獲取一個用於打開圖片文件的intent
public static Intent getImageFileIntent( String param ) {
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "image/*");
return intent;
}
//Android獲取一個用於打開PPT文件的intent
public static Intent getPptFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
return intent;
}
//Android獲取一個用於打開Excel文件的intent
public static Intent getExcelFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "application/vnd.ms-excel");
return intent;
}
//Android獲取一個用於打開Word文件的intent
public static Intent getWordFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "application/msword");
return intent;
}
//Android獲取一個用於打開CHM文件的intent
public static Intent getChmFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "application/x-chm");
return intent;
}
//Android獲取一個用於打開文本文件的intent
public static Intent getTextFileIntent( String param, boolean paramBoolean){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (paramBoolean){
Uri uri1 = Uri.parse(param );
intent.setDataAndType(uri1, "text/plain");
}else{
Uri uri2 = Uri.fromFile(new File(param ));
intent.setDataAndType(uri2, "text/plain");
}
return intent;
}
//Android獲取一個用於打開PDF文件的intent
public static Intent getPdfFileIntent( String param ){
Intent intent = new Intent("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Uri uri = Uri.fromFile(new File(param ));
intent.setDataAndType(uri, "application/pdf");
return intent;
}
}
外部調用時：
Intent intent = OpenFileUtil.openFile(filePath);
PackageManager pm = this.getPackageManager();
List<ResolveInfo> activityList = pm.queryIntentActivities(intent, 0);
if(activityList.isEmpty()){
Toast.makeText(DownLoadFileActivity.this, R.string.can_not_read_file, Toast.LENGTH_SHORT).show();
}else {
startActivity(intent);
}