android用於開啟各種檔案的intent

 

import android.app.Activity;

 

import android.content.Intent;

 

import android.net.Uri;

 

import android.net.Uri.Builder;

 

import java.io.File;

 

import android.content.Intent;

 

 

 

//自訂android Intent類，

 

//可用於擷取開啟以下檔案的intent

 

//PDF,PPT,WORD,EXCEL,CHM,HTML,TEXT,AUDIO,VIDEO

 

 

 

 

 

樣本:

 

 

//這個不行，可能是因為PDF.apk程式沒有許可權訪問其它APK裡的asset資源檔,又或者是路徑寫錯?

 

//Intent it = getPdfFileIntent("file:///android_asset/helphelp.pdf");

 

//下面這些都OK

 

//Intent it = getHtmlFileIntent("/mnt/sdcard/tutorial.html");//SD卡主目錄

 

//Intent it = getHtmlFileIntent("/sdcard/tutorial.html");//SD卡主目錄,這樣也可以

 

Intent it = getHtmlFileIntent("/system/etc/tutorial.html");//系統內部的etc目錄

 

//Intent it = getPdfFileIntent("/system/etc/helphelp.pdf");

 

//Intent it = getWordFileIntent("/system/etc/help.doc");

 

//Intent it = getExcelFileIntent("/mnt/sdcard/Book1.xls")

 

//Intent it = getPptFileIntent("/mnt/sdcard/download/Android_PPT.ppt");//SD卡的download目錄下

 

//Intent it = getVideoFileIntent("/mnt/sdcard/ice.avi");

 

//Intent it = getAudioFileIntent("/mnt/sdcard/ren.mp3");

 

//Intent it = getImageFileIntent("/mnt/sdcard/images/001041580.jpg");

 

//Intent it = getTextFileIntent("/mnt/sdcard/hello.txt",false);

 

 

 

 

 

startActivity( it );

 

 

 

 

public class MyIntent

 

{

 

 

 

//android擷取一個用於開啟HTML檔案的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擷取一個用於開啟圖片檔案的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擷取一個用於開啟PDF檔案的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;

 

  }

 

 

 

//android擷取一個用於開啟文字檔的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擷取一個用於開啟音頻檔案的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擷取一個用於開啟視頻檔案的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擷取一個用於開啟CHM檔案的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擷取一個用於開啟Word檔案的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擷取一個用於開啟Excel檔案的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擷取一個用於開啟PPT檔案的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;

 

  }

 

 

 

  

 

 

 

 

 

}

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