<p> Gets a substring from the specified string avoiding exceptions. </p> <p/> <p> A negative start position can be used to start <code>n</code> charac

关闭流 @param stream 可关闭的流

<p> Compares two Strings, returning <code>true</code> if they are equal. </p> <p/> <p> <code>null</code>s are handled without exceptions. Two <code>nu

Returns the current maximum allowed image scale @return

Returns the current view matrix @return

Returns the current minimum allowed image scale @return

<p> Checks if a (trimmed) String is <code>null</code> or empty. </p> <p/> <p> <strong>Note:</strong> In future releases, this method will no longer tr

<p> Checks if String contains a search character, handling <code>null</code>. This method uses {@link String#indexOf(int)}. </p> <p/> <p> A <code>null

<p> Checks if the String contains only whitespace. </p> <p/> <p> <code>null</code> will return <code>false</code>. An empty String will return <code>t

TOAST @param msg 消息 @param period 时长

取消进度对话框

显示进度对话框 @param msg 消息

弹对话框 @param title 标题 @param msg 消息 @param positive 确定 @param positiveListener 确定回调 @param negative

<p> Checks if a String is non <code>null</code> and is not empty (<code>length > 0</code>). </p> @param str the String to check @return true if the S

<p> Replace all occurances of a char within another char. </p> <p/> <p> A <code>null</code> reference passed to this method is a no-op. </p> @param t

<p> Removes control characters, including whitespace, from both ends of this String, handling <code>null</code> by returning <code>null</code>. </p>

{@inheritDoc} Set the new image to display and reset the internal matrix. @param bitmap the {@link Bitmap} to display @see {@link ImageView