Sets the matrix to the given matrix. @param matrix The matrix that is to be copied. (The given matrix is not modified) @return This matrix for the pu

Determines the rotation to be applied to tiles, based on EXIF orientation or chosen setting.

创建FBO @param width @param height

Calls {@link #apply(boolean)} with false.

取消倒计时

是否包含key @param key @return

删除文件 @param fileName

获取当前线程的Handler @return

Sets the matrix to an identity matrix. @return This matrix for the purpose of chaining methods together.

Checks whether the MediaPlayer is playing. @return true if currently playing, false otherwise

Returns the closest integer to the specified float. This method will only properly round floats from -(2^14) to (Float.MAX_VALUE - 2^14).

获取绑定的Activity @return

获取预览Surface的旋转角度

This protected method is final because, contrary to the superclass, it's not used anymore by the other methods.

检查某个权限是否授权 @param permission @return

Pauses playback. Call resume() to resume. @throws IllegalStateException if the internal player engine has not been initialized.

检查是否出错 @param op

Adjusts hypothetical future scale and translate values to keep scale within the allowed range and the image on screen. Minimum scale is set so one dim

获取资源列表 @return

Returns the surface's width, in pixels. <p> If this is called on a window surface, and the underlying surface is in the process of changing size, we m

Call to find whether the view is initialised, has dimensions, and will display an image on the next draw. If a preview has been provided, it may be th

请求权限列表 @param fragment @param permissions @param request_code

Extends the bounding box to incorporate the given {@link Vector3}. @param point The vector @return This bounding box for chaining.

* 获取解码上下文 * @return */

Returns the surface's height, in pixels.

Return the current position of this tab in the action bar. @return Current position, or {@link #INVALID_POSITION} if this tab is not currently in the

Returns the height of the video. @return the height of the video, or 0 if there is no video, no display surface was set, or the height has not been d

Returns the width of the video. @return the width of the video, or 0 if there is no video, no display surface was set, or the width has not been dete

是否存在人脸 @return

绘制 @param textureId @param vertexBuffer @param textureBuffer

Called to indicate the completion of a seek operation. @param mp the MediaPlayer that issued the seek operation

* 打开播放器 * @param sampleRate * @param channels * @return */

* If exception is nullptr and opStatus is not OK, this method sends an error * event to the client application; otherwise, if exception is not nullpt

添加延时任务 @param runnable

Sets the volume on this player. This API is recommended for balancing the output of audio streams within an application. Unless you are writing an app

Returns atan2 in radians, faster but less accurate than Math.atan2. Average error of 0.00231 radians (0.1323 degrees), largest error of 0.00488 radian

Calculates the 2D cross product between this and the given vector. @param v the other vector @return the cross product

@param v The other vector @return The dot product between this and the other vector

获取预览高度

获取预览宽度

设置文字 @param id @param text @return

计算距离 @param coordinate @param distance @return

加载mipmap纹理 @param context @param name @return

@return The dot product between the two vectors

Calculates (this quaternion)^alpha where alpha is a real number and stores the result in this quaternion. See http://en.wikipedia.org/wiki/Quaternion#

翻转 @param i @return

时间显示(只显示到秒) @param totalMillisSeconds @return

从普通文件中读入图片 @param fileName @return

获取滤镜路径 @param context @return

Returns the rotate of the video. @return the rotate of the video, or o if there is no video

@return The squared euclidean length