EXT-改变窗口宽高或字体大小时提醒

Ext.EventManager.onWindowResize(function(width,height){
//改变窗口的时候会提示出窗口的宽高
        alert('width:'+width+',height:'+height);
    });

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Ext.EventManager.onTextResize(function(oldsize,newsize){
//改变字体大小提示
        alert('oldsize:'+oldsize+'newsize:'+newsize);
});

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