How to launch browser to open local file

I'm trying to send intent to browser to open local file. I wish to use default browser to open this file.

if(file.exists()){
  Log.d(TAG, "file.exists");
  Intent i开发者_JAVA百科ntent = new Intent(Intent.ACTION_VIEW, Uri.fromFile(file));
  context.startActivity(intent);
}

But it throws me and exeption

08-10 13:27:58.993: ERROR/AndroidRuntime(28453): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=file:///sdcard/release_notes.htm }

If I use following intent browser opens google.com as expected

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://google.com"));

Also when I write the file url (file:///sdcard/release_notes.htm) to browser address bar it opens it as expected.

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The browser is started only for HTML and other compatible files. this should work:

Intent intent = new Intent(ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "text/html");

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This is what's working for me. I took the mime type directly from the Manifest.xml of the Android's default browser. Apparently the text/html mime is only for http(s) and inline schemes.

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_BROWSABLE);
intent.setDataAndType(Uri.fromFile(filePath), "application/x-webarchive-xml");
startActivity(intent);

Not sure if it works in every android/phone/browser combination but it's the only way I could get it to work.

Edit: Tested with chrome and doesn't work. Also doesn't work with my 2.3.3 device. Seems to work with the default browser in Android 4.0.

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You need to add browsable category in the intent.

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.fromFile(file));
intent.addCategory(Intent.CATEGORY_BROWSABLE);
startActivity(intent);

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Here's a slighly more robust approach:

private void openInBrowser(File file) {
    final Uri uri = Uri.fromFile(file);
    try {
        final Intent browserIntent = new Intent(Intent.ACTION_VIEW);
        browserIntent.setClassName("com.android.browser", "com.android.browser.BrowserActivity");
        browserIntent.setData(uri);
        startActivity(browserIntent);
    } catch (ActivityNotFoundException e) {
        final Intent browserIntent = new Intent(Intent.ACTION_VIEW);
        browserIntent.setDataAndType(Uri.fromFile(file), "text/html");
        startActivity(browserIntent);
    }
}

I've tested this on a Nexus One (API 16, 4.1.2), where the try works, and a Nexus 5 (API 22, 5.1.1), where only the catch works.

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Maybe this works:

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "text/html");
startActivity(intent);

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The problem is that the new activity has no access to the html page inside your app since it is a different app and it has no permissions to do so.

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This code works on both API 10 and API 11.

File f = new File("/mnt/sdcard/index.html");

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addCategory(Intent.CATEGORY_BROWSABLE);
intent.setDataAndType(Uri.fromFile(f), "application/x-webarchive-xml");
// Have to add this one in order to work on Target 2.3.3 (API 10)
intent.setClassName("com.android.browser", "com.android.browser.BrowserActivity");
startActivity(intent);