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Add support for adjusting text in the WebView to the preferred zoom scale on Android.

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More robust iOS support is forthcoming, but currently works with iOS7
Dynamic Type Fonts by setting the following css on the body and using
relatively sized fonts sizing for child containers, for example:

body {
   font: -apple-system-body;
}

body > .app {
  font-family: 'HelveticaNeue-Light', 'HelveticaNeue', Helvetica,
Arial, sans-serif;
  font-size:0.75em;
  font-weight: 200;
}
This commit is contained in:
Michael Jordan
2014-03-06 21:44:05 -05:00
parent 4b62a1f24a
commit 728a327ab0
7 changed files with 191 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/android/com/phonegap/plugin/mobileaccessibility/DonutMobileAccessibilityHelper.java
+50 -2
View File
@@ -4,8 +4,10 @@ package com.phonegap.plugin.mobileaccessibility;
import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.webkit.WebSettings;
import android.webkit.WebView;
@TargetApi(Build.VERSION_CODES.DONUT)
@@ -18,7 +20,6 @@ public class DonutMobileAccessibilityHelper extends
public void initialize(MobileAccessibility mobileAccessibility) {
mMobileAccessibility = mobileAccessibility;
mWebView = mobileAccessibility.webView;
mParent = mobileAccessibility.webView.getParentForAccessibility();
mAccessibilityManager = (AccessibilityManager) mMobileAccessibility.cordova.getActivity().getSystemService(Context.ACCESSIBILITY_SERVICE);
}
@@ -76,5 +77,52 @@ public class DonutMobileAccessibilityHelper extends
mAccessibilityManager.sendAccessibilityEvent(event);
}
@SuppressWarnings("deprecation")
@Override
public int getTextZoom() {
int zoom = 100;
WebSettings.TextSize wTextSize = mWebView.getSettings().getTextSize();
switch (wTextSize) {
case LARGEST:
zoom = 200;
break;
case LARGER:
zoom = 150;
break;
case NORMAL:
zoom = 100;
break;
case SMALLER:
zoom = 75;
break;
case SMALLEST:
zoom = 50;
break;
default:
zoom = 100;
break;
}
return zoom;
}
@SuppressWarnings("deprecation")
@Override
public void setTextZoom(int textZoom) {
final int zoom = textZoom;
WebSettings.TextSize wTextSize = WebSettings.TextSize.NORMAL;
if (zoom > 115) {
wTextSize = WebSettings.TextSize.LARGEST;
} else if (zoom > 100) {
wTextSize = WebSettings.TextSize.LARGER;
} else if (zoom == 100) {
wTextSize = WebSettings.TextSize.NORMAL;
} else if (zoom > 50) {
wTextSize = WebSettings.TextSize.SMALLER;
} else {
wTextSize = WebSettings.TextSize.SMALLEST;
}
//Log.i("MobileAccessibility", "fontScale = " + zoom + ", WebSettings.TextSize = " + wTextSize.toString());
mWebView.getSettings().setTextSize(wTextSize);
}
}