android intent打开各种格式文档方法

import java.io.File;

import android.content.Intent;
import android.net.Uri;

/**
 * android Intent打开各种类型文件（(PDF、word、excel、ppt、chm）
 */
public class IntentDocumentView {
	// android获取一个用于打开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获取一个用于打开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获取一个用于打开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获取一个用于打开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获取一个用于打开文本文件的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获取一个用于打开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;
	}

	// android获取一个用于打开图片文件的intent
	public static Intent getPicturefFileIntent(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获取一个用于打开压缩包的intent （手机需安装能打开压缩文件的相关软件）
	public static Intent getZipRarFileIntent(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-gzip");
		return intent;
	}

}

	protected void openFile(String path) {
		
		String format = path.substring(path.lastIndexOf(".") + 1);
		File file = new File(path);
		try {
			if (file.exists() || FileUtil.fileAvailable(file)) {
				if (TextUtils.equals("doc", format) || TextUtils.equals("docx", format)) {
					mContext.startActivity(IntentDocumentView.getWordFileIntent(path));
				} else if (TextUtils.equals("xls", format) || TextUtils.equals("xlsx", format)) {
					mContext.startActivity(IntentDocumentView.getExcelFileIntent(path));
				} else if (TextUtils.equals("zip", format) || TextUtils.equals("rar", format)) {
					mContext.startActivity(IntentDocumentView.getZipRarFileIntent(path));
				}else if (TextUtils.equals("pdf", format) || TextUtils.equals("PDF", format)) {
					mContext.startActivity(IntentDocumentView.getPdfFileIntent(path));
				}else {
					ToastUtil.showToast(mContext, "新增文件类型，请联系软件开发商");
				}

			} else {
				ToastUtil.showToast(mContext, "请先下载文件");
			}
		} catch (Exception e) {
			e.printStackTrace();
			ToastUtil.showToast(mContext, "请先安装可以查看" + format + "格式的软件");
		}

	}