优化短视频
Matthew
1 year ago
parent
78c948b95f
commit
4d86ebe148
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.xypower.mpapp.v2;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.widget.FrameLayout;
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import androidx.annotation.IntDef;
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import com.xypower.mpapp.R;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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/**
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* A {@link FrameLayout} that resizes itself to match a specified aspect ratio.
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*/
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public final class AspectRatioFrameLayout extends FrameLayout {
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/**
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* Resize modes for {@link AspectRatioFrameLayout}.
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*/
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@Retention(RetentionPolicy.SOURCE)
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@IntDef({RESIZE_MODE_FIT, RESIZE_MODE_FIXED_WIDTH, RESIZE_MODE_FIXED_HEIGHT, RESIZE_MODE_FILL})
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public @interface ResizeMode {}
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/**
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* Either the width or height is decreased to obtain the desired aspect ratio.
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*/
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public static final int RESIZE_MODE_FIT = 0;
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/**
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* The width is fixed and the height is increased or decreased to obtain the desired aspect ratio.
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*/
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public static final int RESIZE_MODE_FIXED_WIDTH = 1;
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/**
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* The height is fixed and the width is increased or decreased to obtain the desired aspect ratio.
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*/
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public static final int RESIZE_MODE_FIXED_HEIGHT = 2;
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/**
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* The specified aspect ratio is ignored.
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*/
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public static final int RESIZE_MODE_FILL = 3;
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/**
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* The {@link FrameLayout} will not resize itself if the fractional difference between its natural
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* aspect ratio and the requested aspect ratio falls below this threshold.
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* <p>
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* This tolerance allows the view to occupy the whole of the screen when the requested aspect
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* ratio is very close, but not exactly equal to, the aspect ratio of the screen. This may reduce
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* the number of view layers that need to be composited by the underlying system, which can help
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* to reduce power consumption.
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*/
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private static final float MAX_ASPECT_RATIO_DEFORMATION_FRACTION = 0.01f;
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private float videoAspectRatio;
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private int resizeMode;
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public AspectRatioFrameLayout(Context context) {
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this(context, null);
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}
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public AspectRatioFrameLayout(Context context, AttributeSet attrs) {
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super(context, attrs);
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resizeMode = RESIZE_MODE_FIT;
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if (attrs != null) {
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TypedArray a = context.getTheme().obtainStyledAttributes(attrs,
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R.styleable.AspectRatioFrameLayout, 0, 0);
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try {
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resizeMode = a.getInt(R.styleable.AspectRatioFrameLayout_resize_mode, RESIZE_MODE_FIT);
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} finally {
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a.recycle();
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}
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}
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}
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/**
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* Set the aspect ratio that this view should satisfy.
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*
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* @param widthHeightRatio The width to height ratio.
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*/
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public void setAspectRatio(float widthHeightRatio) {
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if (this.videoAspectRatio != widthHeightRatio) {
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this.videoAspectRatio = widthHeightRatio;
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requestLayout();
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}
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}
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/**
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* Sets the resize mode.
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*
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* @param resizeMode The resize mode.
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*/
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public void setResizeMode(@ResizeMode int resizeMode) {
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if (this.resizeMode != resizeMode) {
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this.resizeMode = resizeMode;
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requestLayout();
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}
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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if (resizeMode == RESIZE_MODE_FILL || videoAspectRatio <= 0) {
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// Aspect ratio not set.
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return;
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}
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int width = getMeasuredWidth();
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int height = getMeasuredHeight();
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float viewAspectRatio = (float) width / height;
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float aspectDeformation = videoAspectRatio / viewAspectRatio - 1;
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if (Math.abs(aspectDeformation) <= MAX_ASPECT_RATIO_DEFORMATION_FRACTION) {
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// We're within the allowed tolerance.
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return;
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}
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switch (resizeMode) {
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case RESIZE_MODE_FIXED_WIDTH:
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height = (int) (width / videoAspectRatio);
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break;
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case RESIZE_MODE_FIXED_HEIGHT:
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width = (int) (height * videoAspectRatio);
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break;
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default:
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if (aspectDeformation > 0) {
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height = (int) (width / videoAspectRatio);
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} else {
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width = (int) (height * videoAspectRatio);
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}
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break;
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}
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super.onMeasure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
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}
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}
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@ -0,0 +1,61 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (C) 2016 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<resources>
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<!-- Must be kept in sync with AspectRatioFrameLayout -->
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<attr name="resize_mode" format="enum">
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<enum name="fit" value="0"/>
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<enum name="fixed_width" value="1"/>
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<enum name="fixed_height" value="2"/>
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<enum name="fill" value="3"/>
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</attr>
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<!-- Must be kept in sync with SimpleExoPlayerView -->
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<attr name="surface_type" format="enum">
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<enum name="none" value="0"/>
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<enum name="surface_view" value="1"/>
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<enum name="texture_view" value="2"/>
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</attr>
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<attr name="show_timeout" format="integer"/>
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<attr name="rewind_increment" format="integer"/>
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<attr name="fastforward_increment" format="integer"/>
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<attr name="player_layout_id" format="reference"/>
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<attr name="controller_layout_id" format="reference"/>
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<declare-styleable name="SimpleExoPlayerView">
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<attr name="use_artwork" format="boolean"/>
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<attr name="use_controller" format="boolean"/>
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<attr name="surface_type"/>
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<attr name="show_timeout"/>
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<attr name="rewind_increment"/>
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<attr name="fastforward_increment"/>
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<attr name="resize_mode"/>
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<attr name="player_layout_id"/>
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<attr name="controller_layout_id"/>
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</declare-styleable>
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<declare-styleable name="AspectRatioFrameLayout">
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<attr name="resize_mode"/>
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</declare-styleable>
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<declare-styleable name="PlaybackControlView">
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<attr name="show_timeout"/>
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<attr name="rewind_increment"/>
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<attr name="fastforward_increment"/>
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<attr name="controller_layout_id"/>
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</declare-styleable>
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</resources>
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