package com.example.util;
import java.lang.reflect.Field;
import android.app.Activity;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Rect;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewGroup.MarginLayoutParams;
import android.view.WindowManager;
import android.widget.TextView;
import com.example.base.BaseApplication;
/**
* Window及UI缩放工具
*
*/
@SuppressWarnings("unused")
public class WindowUtil {
/** UI设计的竖向高度,单位：px */
private static final int UI_DESIGN_PORTRAIT_SIZE = 1800;
/** UI设计的横向高度,单位：px */
private static final int UI_DESIGN_LANDSCAPE_SIZE = 1080;
/** 自动缩放严格模式标志 */
private static final String AUTO_RESIZE_STRICT_TAG = "strict_mode";
private static final String TAG = WindowUtil.class.getSimpleName();
/** 状态栏高度 */
public static int STATUS_BAR_HEIGHT;
/** 缩放比例:水平 */
public static float SCALE_RATIO_HORIZONTAL;
/** 缩放比例:垂直 */
public static float SCALE_RATIO_VERTICAL;
/** 缩放比例 */
public static float SCALE_RATIO;
/** 屏幕旋转度 */
public static int WINDOW_ROTATION;
private static float SCREEN_DENSITY = 1.0F;
static {
computeScaleRatio();
computeScreenDensity();
computeWindowRotation();
}
/**
* View按UI设计大小等比缩放，重新计算view的宽高、边距、文字大小
*
* @param view
* @return
*/
public static boolean resize(View view) {
return resize(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO);
}
/**
* 递归重新计算View及其子View的宽高
*
* @param view
* @return
*/
public static boolean resizeRecursively(View view) {
return resizeRecursively(view, SCALE_RATIO, SCALE_RATIO);
}
/**
* 重新计算view的宽高、边距、文本大小
* （其中宽高、文本大小按照相同缩放系数；内外边距水平方向按照水平比例系数，垂直方向按照垂直比例系数）
*
* @param view
* @param horizontalRatio
* @param verticalRatio
* @return
*/
public static boolean resize(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
/* 重新计算宽高 */
resizeWidthAndHeight(view, horizontalRatio, verticalRatio);
/* 重新计算内边距 */
repadding(view);
/* 重新计算外边距 */
remargin(view);
/* 重新计算文本大小 */
if (view instanceof TextView)
resizeText((TextView) view);
return true;
}
/**
* 重新计算view的宽高、边距、文本大小
* (严格模式)
*
* @param view
* @param horizontalRatio
* @param verticalRatio
* @return
*/
public static boolean resizeStrictly(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
/* 重新计算宽高 */
resizeWidthAndHeight(view, horizontalRatio, verticalRatio);
/* 重新计算内边距 */
repadding(view, horizontalRatio, verticalRatio);
/* 重新计算外边距 */
remargin(view, horizontalRatio, verticalRatio);
/* 重新计算文本大小 */
if (view instanceof TextView)
resizeText((TextView) view);
return true;
}
/**
* 重新计算view的宽高
*
* @param view
* @param horizontalRatio
* @param verticalRatio
* @return
*/
public static boolean resizeWidthAndHeight(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
Object tag = view.getTag();
if (tag instanceof String) {
String tagString = (String) tag;
if ("ignoreSize".equals(tagString)) {
return true;
}
}
LayoutParams params = view.getLayoutParams();
if (params != null) {
int width = params.width;
int height = params.height;
if (params.width != LayoutParams.MATCH_PARENT && params.width != LayoutParams.WRAP_CONTENT) {
width = (int) (width * horizontalRatio);
if (width > 1)
params.width = width;
}
if (params.height != LayoutParams.MATCH_PARENT && params.height != LayoutParams.WRAP_CONTENT) {
height = (int) (height * verticalRatio);
if (height > 1)
params.height = height;
}
view.setLayoutParams(params);
}
return true;
}
/**
* 重新计算view的Padding(非严格模式)
*
* @param view
* @return
*/
public static boolean repadding(View view) {
return repadding(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO_VERTICAL);
}
/**
* 重新计算view的Padding(严格模式)
*
* @param view
* @return
*/
public static boolean repadding(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
view.setPadding(
(int) (view.getPaddingLeft() * horizontalRatio), (int) (view.getPaddingTop() * verticalRatio),
(int) (view.getPaddingRight() * horizontalRatio), (int) (view.getPaddingBottom() * verticalRatio));
return true;
}
/**
* 重新计算view的Margin
*
* @param view
* @return
*/
public static void remargin(View view) {
remargin(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO_VERTICAL);
}
/**
* 重新计算view的Margin
*
* @param view
* @return
*/
public static void remargin(View view, float horizontalRatio, float verticalRatio) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return;
}
if (marginParams == null)
return;
int left = (int) (marginParams.leftMargin * horizontalRatio);
int top = (int) (marginParams.topMargin * verticalRatio);
int right = (int) (marginParams.rightMargin * horizontalRatio);
int bottom = (int) (marginParams.bottomMargin * verticalRatio);
marginParams.setMargins(left, top, right, bottom);
view.setLayoutParams(marginParams);
}
/**
* 重新计算TextView中文本的大小
*
* @param view
* @return
*/
public static boolean resizeText(TextView view) {
if (view == null)
return false;
Object tag = view.getTag();
if (tag instanceof String) {
String tagString = (String) tag;
if ("ignoreSize".equals(tagString)) {
return true;
}
}
float textSize = view.getTextSize();
float ratio = SCALE_RATIO;
view.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize * ratio);
return true;
}
/**
* 重新计算view的宽高(高度及宽度均按照水平缩放比例)
*
* @param view
* @return
*/
public static boolean resizeWithHorizontalRatio(View view) {
return resize(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO_HORIZONTAL);
}
/**
* 重新计算view的宽高(高度按照垂直缩放比例,宽度按照水平缩放比例)
*
* @param view
* @return
*/
public static boolean resizeWithRespectiveRatio(View view) {
return resize(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO_VERTICAL);
}
public static boolean resizeChildrenRecursively(View view) {
if (view == null)
return false;
if (!(view instanceof ViewGroup))
return true;
ViewGroup group = ((ViewGroup) view);
int childCount = group.getChildCount();
View child = null;
for (int i = 0; i < childCount; i++) {
child = group.getChildAt(i);
resizeRecursively(child);
}
return true;
}
/**
* 递归重新计算view的宽高(高度按照垂直缩放比例,宽度按照水平缩放比例)
*
* @param view
* @return
*/
public static boolean resizeRecursivelyWithRespectiveRatio(View view) {
return resizeRecursively(view, SCALE_RATIO_HORIZONTAL, SCALE_RATIO_VERTICAL);
}
/**
* 递归重新计算view的宽高(高度和宽度均按照垂直缩放比例)
*
* @param view
* @return
*/
public static boolean resizeRecursivelyWithVerticalRatio(View view) {
return resizeRecursively(view, SCALE_RATIO_VERTICAL, SCALE_RATIO_VERTICAL);
}
/**
* 递归重新计算view的宽高
*
* @param view
* @param horizontalRatio
* 水平缩放比例
* @param verticalRatio
* 垂直缩放比例
* @return
*/
private static boolean resizeRecursively(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
/* 是否为严格模式 */
boolean strictMode = isStrictMode(view);
/* 如果当前View需要以严格模式缩放，自动将所有子孙View按照严格模式缩放 */
if (strictMode)
return resizeStrictRecursively(view, SCALE_RATIO, SCALE_RATIO);
resize(view, horizontalRatio, verticalRatio);
if (!(view instanceof ViewGroup))
return true;
ViewGroup group = ((ViewGroup) view);
int childCount = group.getChildCount();
View child = null;
for (int i = 0; i < childCount; i++) {
child = group.getChildAt(i);
resizeRecursively(child, horizontalRatio, verticalRatio);
}
return true;
}
/**
* 递归重新计算view的宽高(严格模式)
*
* @param view
* @param horizontalRatio
* 水平缩放比例
* @param verticalRatio
* 垂直缩放比例
* @return
*/
private static boolean resizeStrictRecursively(View view, float horizontalRatio, float verticalRatio) {
if (view == null)
return false;
resizeStrictly(view, horizontalRatio, verticalRatio);
if (!(view instanceof ViewGroup))
return true;
ViewGroup group = ((ViewGroup) view);
int childCount = group.getChildCount();
View child = null;
for (int i = 0; i < childCount; i++) {
child = group.getChildAt(i);
resizeStrictRecursively(child, horizontalRatio, verticalRatio);
}
return true;
}
/**
* 是否为严格缩放模式
*
* @param view
* @return
*/
private static boolean isStrictMode(View view) {
boolean strictMode = false;
Object tag = view.getTag();
if (tag == null)
return false;
String tagString = String.valueOf(tag);
if (AUTO_RESIZE_STRICT_TAG.equals(tagString))
strictMode = true;
return strictMode;
}
/**
* 根据屏幕宽度设置传入View的宽度
*
* @param view
* @param designedWidthResId
* UI设计的高度资源ID
* @return 是否成功设置
*/
public static boolean setWidth(View view, int designedWidthResId) {
float designedWidth = BaseApplication.getAppContext().getResources().getDimension(designedWidthResId);
LayoutParams params = null;
if (view instanceof ViewGroup)
params = view.getLayoutParams();
if (params == null)
params = ((View) (view.getParent())).getLayoutParams();
if (params == null)
return false;
params.width = (int) (designedWidth * SCALE_RATIO_HORIZONTAL);
view.setLayoutParams(params);
return true;
}
/**
* 根据屏幕宽度设置传入View的高度
*
* @param view
* @param designedHeightResId
* UI设计的高度资源ID(以像素为单位)
* @return 是否成功设置
*/
public static boolean setHeight(View view, int designedHeightResId) {
if (view == null)
return false;
float designedHeight = BaseApplication.getAppContext().getResources().getDimension(designedHeightResId);
LayoutParams params = null;
if (view instanceof ViewGroup)
params = view.getLayoutParams();
if (params == null)
params = ((View) (view.getParent())).getLayoutParams();
if (params == null)
return false;
params.height = (int) (designedHeight * SCALE_RATIO_VERTICAL);
view.setLayoutParams(params);
return true;
}
/**
* 根据屏幕宽高设置传入View的宽高(按照宽度比例等比缩放)
*
* @param view
* @param designedWidthResId
* UI设计的宽度资源ID(以像素为单位)
* @param designedHeightResId
* UI设计的高度资源ID(以像素为单位)
* @return 是否成功设置
*/
public static boolean setSize(View view, int designedWidthResId, int designedHeightResId) {
float designedWidth = BaseApplication.getAppContext().getResources().getDimension(designedWidthResId);
float designedHeight = BaseApplication.getAppContext().getResources().getDimension(designedHeightResId);
LayoutParams params = null;
if (view instanceof ViewGroup)
params = view.getLayoutParams();
if (params == null)
params = ((View) (view.getParent())).getLayoutParams();
if (params == null)
return false;
params.width = (int) (designedWidth * SCALE_RATIO_HORIZONTAL);
params.height = (int) (designedHeight * SCALE_RATIO_HORIZONTAL);
view.setLayoutParams(params);
return true;
}
/**
* 根据屏幕宽度设置传入View的高度
*
* @param view
* @param height
* 像素值
*
* @return 是否成功设置
*/
public static boolean setViewHeight(View view, int height) {
LayoutParams params = null;
if (view instanceof ViewGroup)
params = view.getLayoutParams();
if (params == null)
params = ((View) (view.getParent())).getLayoutParams();
if (params == null)
return false;
params.height = height;
view.setLayoutParams(params);
return true;
}
/**
* 设置视图宽高
*
* @param view
* @param width
* @param height
* @return
*/
public static boolean setViewSize(View view, int width, int height) {
LayoutParams params = null;
if (view instanceof ViewGroup)
params = view.getLayoutParams();
if (params == null)
params = ((View) (view.getParent())).getLayoutParams();
if (params == null)
return false;
params.width = width;
params.height = height;
view.setLayoutParams(params);
return true;
}
/**
* 根据屏幕宽度设置传入TextView的文本大小
*
* @param view
* @param designedTextSizeResId
* UI设计的文本大小资源ID(以像素为单位)
* @return 是否成功设置
*/
public static boolean setTextSize(TextView view, int designedTextSizeResId) {
if (view == null)
return false;
float designedSize = BaseApplication.getAppContext().getResources().getDimension(designedTextSizeResId);
float size = designedSize * SCALE_RATIO_HORIZONTAL;
view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
return true;
}
/**
* 设置View的外边距(像素值)
*
* @param view
* @param left
* @param top
* @param right
* @param bottom
* @return
*/
public static boolean setMargin(View view, int left, int top, int right, int bottom) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return false;
}
if (marginParams == null)
return false;
marginParams.leftMargin = left;
marginParams.topMargin = top;
marginParams.rightMargin = right;
marginParams.bottomMargin = bottom;
view.setLayoutParams(marginParams);
return true;
}
/**
* 设置View的顶部外边距(像素值)
*
* @param view
* @return
*/
public static boolean setMarginTop(View view, int marginTop) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return false;
}
if (marginParams == null)
return false;
marginParams.topMargin = marginTop;
view.setLayoutParams(marginParams);
return true;
}
/**
* 设置View的左侧外边距(像素值)
*
* @param view
* @return
*/
public static boolean setMarginLeft(View view, int marginLeft) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return false;
}
if (marginParams == null)
return false;
marginParams.leftMargin = marginLeft;
view.setLayoutParams(marginParams);
return true;
}
/**
* 设置View的右侧外边距(像素值)
*
* @param view
* @return
*/
public static boolean setMarginRight(View view, int marginRight) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return false;
}
if (marginParams == null)
return false;
marginParams.rightMargin = marginRight;
view.setLayoutParams(marginParams);
return true;
}
/**
* 设置View的底部外边距(像素值)
*
* @param view
* @return
*/
public static boolean setMarginBottom(View view, int marginBottom) {
MarginLayoutParams marginParams = null;
try {
marginParams = (MarginLayoutParams) view.getLayoutParams();
} catch (ClassCastException e) {
return false;
}
if (marginParams == null)
return false;
marginParams.bottomMargin = marginBottom;
view.setLayoutParams(marginParams);
return true;
}
/**
* 设置View的内边距(像素值)
*
* @param view
* @return
*/
public static boolean setPadding(View view, int left, int top, int right, int bottom) {
if (view == null)
return false;
view.setPadding(left, top, right, bottom);
return true;
}
/**
* 设置View的顶部内边距(像素值)
*
* @param view
* @return
*/
public static boolean setPaddingTop(View view, int top) {
if (view == null)
return false;
view.setPadding(view.getPaddingLeft(), top, view.getPaddingRight(), view.getPaddingBottom());
return true;
}
/**
* 设置View的左侧内边距(像素值)
*
* @param view
* @return
*/
public static boolean setPaddingLeft(View view, int paddingLeft) {
if (view == null)
return false;
view.setPadding(paddingLeft, view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
return true;
}
/**
* 设置View的右侧内边距(像素值)
*
* @param view
* @return
*/
public static boolean setPaddingRight(View view, int paddingRight) {
if (view == null)
return false;
view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), paddingRight, view.getPaddingBottom());
return true;
}
/**
* 设置View的底部内边距(像素值)
*
* @param view
* @return
*/
public static boolean setPaddingBottom(View view, int paddingBottom) {
if (view == null)
return false;
view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), paddingBottom);
return true;
}
/**
* 获取View的宽度(像素值)
*
* @param view
* @return
*/
public static int getWidth(View view) {
LayoutParams params = view.getLayoutParams();
if (params == null)
return 0;
return params.width;
}
/**
* 获取View的高度(像素值)
*
* @param view
* @return
*/
public static int getHeight(View view) {
LayoutParams params = view.getLayoutParams();
if (params == null)
return 0;
return params.height;
}
/**
* 获取高度值(像素)(按照宽度比例缩放)
*
* @return
*/
public static float getHorizontalScaledDimen(int heightResId) {
return BaseApplication.getAppContext().getResources().getDimension(heightResId) * SCALE_RATIO_HORIZONTAL;
}
/**
* 获取高度值(像素)(按照高度比例缩放)
*
* @return
*/
public static float getVerticalScaledDimen(int heightResId) {
return BaseApplication.getAppContext().getResources().getDimension(heightResId) * SCALE_RATIO_VERTICAL;
}
/**
* 获取屏幕宽度(像素)
*
* @return
*/
public static int getWindowWidth() {
DisplayMetrics dm = new DisplayMetrics();
dm = BaseApplication.getAppContext().getResources().getDisplayMetrics();
if (dm == null)
return 0;
return dm.widthPixels;
}
/**
* 获取屏幕高度(像素)
*
* @return
*/
public static int getWindowHeight() {
DisplayMetrics dm = new DisplayMetrics();
dm = BaseApplication.getAppContext().getResources().getDisplayMetrics();
if (dm == null)
return 0;
return dm.heightPixels;
}
/**
* 计算资源文件中定义的尺寸像素值
*
* @param resId
* dimen.xml中定义的资源ID
* @return
*/
public static float computeDimen(int resId) {
return BaseApplication.getAppContext().getResources().getDimension(resId);
}
/**
* 计算资源文件中定义的尺寸像素值，并乘以缩放系数ratio
*
* @return
*/
public static float computeScaledDimen(int resId, float ratio) {
return computeDimen(resId) * ratio;
}
/**
* 重新计算尺寸像素值，并乘以缩放系数ratio
*
* @return
*/
public static int computeScaledSize(int size) {
return (int) (size * SCALE_RATIO);
}
/**
* 重新计算尺寸像素值，并乘以缩放系数ratio
*
* @return
*/
public static int computeScaledSize(float size) {
return (int) (size * SCALE_RATIO);
}
/**
* 计算资源文件中定义的尺寸像素值，并乘以垂直缩放系数
*
* @param resId
* UI设计的大小资源ID(以像素为单位)
* @return
*/
public static float computeScaledDimenByVerticalRatio(int resId) {
return computeScaledDimen(resId, SCALE_RATIO_VERTICAL);
}
/**
* 计算资源文件中定义的尺寸像素值，并乘以水平缩放系数
*
* @param resId
* UI设计的大小资源ID(以像素为单位)
* @return
*/
public static float computeScaledDimenByHorizontalRatio(int resId) {
return computeScaledDimen(resId, SCALE_RATIO_HORIZONTAL);
}
/**
* 计算屏幕密度
*/
public static void computeScreenDensity() {
DisplayMetrics dm = new DisplayMetrics();
dm = BaseApplication.getAppContext().getResources().getDisplayMetrics();
if (dm == null)
return;
SCREEN_DENSITY = dm.density;
}
/**
* 计算UI/字体缩放比例
*/
public static void computeScaleRatio() {
int windowWidth = getWindowWidth();
int windowHeight = getWindowHeight();
if (windowWidth == 0 || windowHeight == 0)
return;
int designedWidth = (windowWidth > windowHeight) ? UI_DESIGN_PORTRAIT_SIZE : UI_DESIGN_LANDSCAPE_SIZE;
int designedHeight = (windowWidth > windowHeight) ? UI_DESIGN_LANDSCAPE_SIZE : UI_DESIGN_PORTRAIT_SIZE;
SCALE_RATIO_HORIZONTAL = (float) windowWidth / (float) designedWidth;
SCALE_RATIO_VERTICAL = (float) windowHeight / (float) designedHeight;
float ratioDesigned = (float) UI_DESIGN_PORTRAIT_SIZE / (float) UI_DESIGN_LANDSCAPE_SIZE;
float ratioDevice = (float) windowHeight / (float) windowWidth;
/* 当设备宽高比例与UI设计的比例相同，或者设备宽高比例比UI设计的比例瘦长时按照宽度等比缩放(主流)，相反，如果比UI设计的比例胖扁时按照高度缩放 */
SCALE_RATIO = ratioDevice >= ratioDesigned ? SCALE_RATIO_HORIZONTAL : SCALE_RATIO_VERTICAL;
}
/**
* 检查当前屏幕方向是否为横向
*
* @return
*/
public static boolean isLandscape() {
return BaseApplication.getAppContext().getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
}
/**
* dip转换px
*
* @param dip
* @return
*/
public static int dip2px(float dip) {
float f = BaseApplication.getAppContext().getResources().getDisplayMetrics().density;
return (int) (dip * f + 0.5F);
}
/**
* dip转换px
*
* @param dip
* @return
*/
public static int px2dip(float px) {
float f = BaseApplication.getAppContext().getResources().getDisplayMetrics().density;
return (int) (px / f);
}
/**
* 检查UI事件是否发生在视图view的区域内
*
* @param v
* @param ev
* @return
*/
public static boolean intersects(View v, MotionEvent ev) {
if (v == null)
return false;
Rect rect = new Rect();
v.getHitRect(rect);
Rect r = new Rect();
r.left = r.right = (int) ev.getX();
r.bottom = r.top = (int) ev.getY();
return rect.intersects(r.left, r.top, r.right, r.bottom);
}
/**
* 通过反射计算状态栏高度
*
* @return
*/
public static int getStatusBarHeight() {
if (STATUS_BAR_HEIGHT != 0)
return STATUS_BAR_HEIGHT;
Class c = null;
Object obj = null;
Field field = null;
int x = 0, statusBarHeight = 0;
try {
c = Class.forName("com.android.internal.R$dimen");
obj = c.newInstance();
field = c.getField("status_bar_height");
x = Integer.parseInt(field.get(obj).toString());
statusBarHeight = BaseApplication.getAppContext().getResources().getDimensionPixelSize(x);
STATUS_BAR_HEIGHT = statusBarHeight;
} catch (Exception e1) {
e1.printStackTrace();
}
return STATUS_BAR_HEIGHT;
}
/**
* 根据Activity获取状态栏高度
*
* @param activityo
* @return
*/
public static int getStatusBarHeight(Activity activity) {
Rect frame = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
return frame.top;
}
public static void computeWindowRotation() {
WindowManager windowManager = (WindowManager) BaseApplication.getAppContext().getSystemService(Context.WINDOW_SERVICE);
WINDOW_ROTATION = windowManager.getDefaultDisplay().getRotation();
LogUtil.d(TAG, "computeWindowRotation rotation : " + WINDOW_ROTATION);
}
public static int getWindowRotation() {
return WINDOW_ROTATION;
}
}
当前题目：Window及UI缩放工具WindowUtil
文章转载：
http://bzwzjz.com/article/pghdii.html
