分享一个Snackbar工具类，源代码也是在Github上面找的，自己做了一下修改；
功能如下：
1:设置Snackbar显示时间长短
1.1:Snackbar.LENGTH_SHORT {@link SnackbarUtils#Short(View, String)}
1.2:Snackbar.LENGTH_LONG {@link SnackbarUtils#Long(View, String)}
1.3:Snackbar.LENGTH_INDEFINITE {@link SnackbarUtils#Indefinite(View, String)}
1.4:CUSTOM {@link SnackbarUtils#Custom(View, String, int)}
2:设置Snackbar背景颜色
2.1:color_info {@link SnackbarUtils#info()}
2.2:color_confirm {@link SnackbarUtils#confirm()}
2.3:color_warning {@link SnackbarUtils#warning()}
2.4:color_danger {@link SnackbarUtils#danger()}
2.5:CUSTOM {@link SnackbarUtils#backColor(int)}
3:设置TextView(@+id/snackbar_text)的文字颜色
{@link SnackbarUtils#messageColor(int)}
4:设置Button(@+id/snackbar_action)的文字颜色
{@link SnackbarUtils#actionColor(int)}
5:设置Snackbar背景的透明度
{@link SnackbarUtils#alpha(float)}
6:设置Snackbar显示的位置
{@link SnackbarUtils#gravityFrameLayout(int)}
{@link SnackbarUtils#gravityCoordinatorLayout(int)}
6.1:Gravity.TOP;
6.2:Gravity.BOTTOM;
6.3:Gravity.CENTER;
7:设置Button(@+id/snackbar_action)文字内容 及 点击监听
{@link SnackbarUtils#setAction(int, View.OnClickListener)}
{@link SnackbarUtils#setAction(CharSequence, View.OnClickListener)}
8:设置Snackbar展示完成 及 隐藏完成 的监听
{@link SnackbarUtils#setCallback(Snackbar.Callback)}
9:设置TextView(@+id/snackbar_text)左右两侧的图片
{@link SnackbarUtils#leftAndRightDrawable(Drawable, Drawable)}
{@link SnackbarUtils#leftAndRightDrawable(Integer, Integer)}
10:设置TextView(@+id/snackbar_text)中文字的对齐方式
默认效果就是居左对齐
{@link SnackbarUtils#messageCenter()} 居中对齐
{@link SnackbarUtils#messageRight()} 居右对齐
注意:这两个方法要求SDK>=17.{@link View#setTextAlignment(int)}
本来想直接设置Gravity,经试验发现在 TextView(@+id/snackbar_text)上,design_layout_snackbar_include.xml
已经设置了android:textAlignment="viewStart",单纯设置Gravity是无效的.
TEXT_ALIGNMENT_GRAVITY:{@link View#TEXT_ALIGNMENT_GRAVITY}
11:向Snackbar布局中添加View(Google不建议,复杂的布局应该使用DialogFragment进行展示)
{@link SnackbarUtils#addView(int, int)}
{@link SnackbarUtils#addView(View, int)}
注意:使用addView方法的时候要注意新加布局的大小和Snackbar内文字长度，Snackbar过大或过于花哨了可不好看
12:设置Snackbar布局的外边距
{@link SnackbarUtils#margins(int)}
{@link SnackbarUtils#margins(int, int, int, int)}
注意:经试验发现,调用margins后再调用 gravityFrameLayout,则margins无效.
为保证margins有效,应该先调用 gravityFrameLayout,在 show() 之前调用 margins
SnackbarUtil.Long(bt9,"设置Margin值").backColor(0XFF330066).gravityFrameLayout(Gravity.TOP).margins(20,40,60,80).show();
13:设置Snackbar布局的圆角半径值
{@link SnackbarUtils#radius(float)}
14:设置Snackbar布局的圆角半径值及边框颜色及边框宽度
{@link SnackbarUtils#radius(int, int, int)}
15:设置Snackbar显示在指定View的上方
{@link SnackbarUtils#above(View, int, int, int)}
注意:
1:此方法实际上是 {@link SnackbarUtils#gravityFrameLayout(int)}和{@link SnackbarUtils#margins(int, int, int, int)}的结合.
不可与 {@link SnackbarUtils#margins(int, int, int, int)} 混用.
2:暂时仅仅支持单行Snackbar,因为方法中涉及的{@link SnackbarUtils#calculateSnackBarHeight()}暂时仅支持单行Snackbar高度计算.
16:设置Snackbar显示在指定View的下方
{@link SnackbarUtils#bellow(View, int, int, int)}
注意:同15
import android.annotation.TargetApi;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.GradientDrawable;
import android.os.Build;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.Snackbar;
import android.support.v4.widget.Space;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.lang.ref.WeakReference;
/**
Snackbar工具类
功能:
1:设置Snackbar显示时间长短
1.1:Snackbar.LENGTH_SHORT {@link SnackbarUtils#Short(View, String)}
1.2:Snackbar.LENGTH_LONG {@link SnackbarUtils#Long(View, String)}
1.3:Snackbar.LENGTH_INDEFINITE {@link SnackbarUtils#Indefinite(View, String)}
1.4:CUSTOM {@link SnackbarUtils#Custom(View, String, int)}
2:设置Snackbar背景颜色
2.1:color_info {@link SnackbarUtils#info()}
2.2:color_confirm {@link SnackbarUtils#confirm()}
2.3:color_warning {@link SnackbarUtils#warning()}
2.4:color_danger {@link SnackbarUtils#danger()}
2.5:CUSTOM {@link SnackbarUtils#backColor(int)}
3:设置TextView(@+id/snackbar_text)的文字颜色
{@link SnackbarUtils#messageColor(int)}
4:设置Button(@+id/snackbar_action)的文字颜色
{@link SnackbarUtils#actionColor(int)}
5:设置Snackbar背景的透明度
{@link SnackbarUtils#alpha(float)}
6:设置Snackbar显示的位置
{@link SnackbarUtils#gravityFrameLayout(int)}
{@link SnackbarUtils#gravityCoordinatorLayout(int)}
6.1:Gravity.TOP;
6.2:Gravity.BOTTOM;
6.3:Gravity.CENTER;
7:设置Button(@+id/snackbar_action)文字内容 及 点击监听
{@link SnackbarUtils#setAction(int, View.OnClickListener)}
{@link SnackbarUtils#setAction(CharSequence, View.OnClickListener)}
8:设置Snackbar展示完成 及 隐藏完成 的监听
{@link SnackbarUtils#setCallback(Snackbar.Callback)}
9:设置TextView(@+id/snackbar_text)左右两侧的图片
{@link SnackbarUtils#leftAndRightDrawable(Drawable, Drawable)}
{@link SnackbarUtils#leftAndRightDrawable(Integer, Integer)}
10:设置TextView(@+id/snackbar_text)中文字的对齐方式
默认效果就是居左对齐
{@link SnackbarUtils#messageCenter()} 居中对齐
{@link SnackbarUtils#messageRight()} 居右对齐
注意:这两个方法要求SDK>=17.{@link View#setTextAlignment(int)}
本来想直接设置Gravity,经试验发现在 TextView(@+id/snackbar_text)上,design_layout_snackbar_include.xml
已经设置了android:textAlignment="viewStart",单纯设置Gravity是无效的.
TEXT_ALIGNMENT_GRAVITY:{@link View#TEXT_ALIGNMENT_GRAVITY}
11:向Snackbar布局中添加View(Google不建议,复杂的布局应该使用DialogFragment进行展示)
{@link SnackbarUtils#addView(int, int)}
{@link SnackbarUtils#addView(View, int)}
注意:使用addView方法的时候要注意新加布局的大小和Snackbar内文字长度，Snackbar过大或过于花哨了可不好看
12:设置Snackbar布局的外边距
{@link SnackbarUtils#margins(int)}
{@link SnackbarUtils#margins(int, int, int, int)}
注意:经试验发现,调用margins后再调用 gravityFrameLayout,则margins无效.
为保证margins有效,应该先调用 gravityFrameLayout,在 show() 之前调用 margins
SnackbarUtil.Long(bt9,"设置Margin值").backColor(0XFF330066).gravityFrameLayout(Gravity.TOP).margins(20,40,60,80).show();
13:设置Snackbar布局的圆角半径值
{@link SnackbarUtils#radius(float)}
14:设置Snackbar布局的圆角半径值及边框颜色及边框宽度
{@link SnackbarUtils#radius(int, int, int)}
15:设置Snackbar显示在指定View的上方
{@link SnackbarUtils#above(View, int, int, int)}
注意:
1:此方法实际上是 {@link SnackbarUtils#gravityFrameLayout(int)}和{@link SnackbarUtils#margins(int, int, int, int)}的结合.
不可与 {@link SnackbarUtils#margins(int, int, int, int)} 混用.
2:暂时仅仅支持单行Snackbar,因为方法中涉及的{@link SnackbarUtils#calculateSnackBarHeight()}暂时仅支持单行Snackbar高度计算.
16:设置Snackbar显示在指定View的下方
{@link SnackbarUtils#bellow(View, int, int, int)}
注意:同15
示例:
在Activity中:
int total = 0;
int[] locations = new int[2];
getWindow().findViewById(android.R.id.content).getLocationInWindow(locations);
total = locations[1];
SnackbarUtil.Custom(bt_multimethods,"10s+左右drawable+背景色+圆角带边框+指定View下方",1000*10)
.leftAndRightDrawable(R.mipmap.i10,R.mipmap.i11)
.backColor(0XFF668899)
.radius(16,1,Color.BLUE)
.bellow(bt_margins,total,16,16)
.show();
* ChenboCui
*/
public class SnackbarUtils {
//设置Snackbar背景颜色
private static final int color_info = 0XFF2094F3;
private static final int color_confirm = 0XFF4CB04E;
private static final int color_warning = 0XFFFEC005;
private static final int color_danger = 0XFFF44336;
//工具类当前持有的Snackbar实例
private static WeakReference<Snackbar> snackbarWeakReference;
private SnackbarUtils(){
throw new RuntimeException("禁止无参创建实例");
}
private SnackbarUtils(@Nullable WeakReference<Snackbar> snackbarWeakReference){
this.snackbarWeakReference = snackbarWeakReference;
}
/**
* 获取 mSnackbar
* @return
*/
public Snackbar getSnackbar() {
if(this.snackbarWeakReference != null && this.snackbarWeakReference.get()!=null){
return this.snackbarWeakReference.get();
}else {
return null;
}
}
/**
* 初始化Snackbar实例
* 展示时间:Snackbar.LENGTH_SHORT
* @param view
* @param message
* @return
*/
public static SnackbarUtils Short(View view, String message){
return new SnackbarUtils(new WeakReference<Snackbar>(Snackbar.make(view,message,Snackbar.LENGTH_SHORT))).backColor(0XFF323232);
}
/**
* 初始化Snackbar实例
* 展示时间:Snackbar.LENGTH_LONG
* @param view
* @param message
* @return
*/
public static SnackbarUtils Long(View view, String message){
return new SnackbarUtils(new WeakReference<Snackbar>(Snackbar.make(view,message,Snackbar.LENGTH_LONG))).backColor(0XFF323232);
}
/**
* 初始化Snackbar实例
* 展示时间:Snackbar.LENGTH_INDEFINITE
* @param view
* @param message
* @return
*/
public static SnackbarUtils Indefinite(View view, String message){
return new SnackbarUtils(new WeakReference<Snackbar>(Snackbar.make(view,message,Snackbar.LENGTH_INDEFINITE))).backColor(0XFF323232);
}
/**
* 初始化Snackbar实例
* 展示时间:duration 毫秒
* @param view
* @param message
* @param duration 展示时长(毫秒)
* @return
*/
public static SnackbarUtils Custom(View view, String message, int duration){
return new SnackbarUtils(new WeakReference<Snackbar>(Snackbar.make(view,message,Snackbar.LENGTH_SHORT).setDuration(duration))).backColor(0XFF323232);
}
/**
* 设置mSnackbar背景色为 color_info
*/
public SnackbarUtils info(){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(color_info);
}
return this;
}
/**
* 设置mSnackbar背景色为 color_confirm
*/
public SnackbarUtils confirm(){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(color_confirm);
}
return this;
}
/**
* 设置Snackbar背景色为 color_warning
*/
public SnackbarUtils warning(){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(color_warning);
}
return this;
}
/**
* 设置Snackbar背景色为 color_warning
*/
public SnackbarUtils danger(){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(color_danger);
}
return this;
}
/**
* 设置Snackbar背景色
* @param backgroundColor
*/
public SnackbarUtils backColor(@ColorInt int backgroundColor){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(backgroundColor);
}
return this;
}
/**
* 设置TextView(@+id/snackbar_text)的文字颜色
* @param messageColor
*/
public SnackbarUtils messageColor(@ColorInt int messageColor){
if(getSnackbar()!=null){
((TextView)getSnackbar().getView().findViewById(R.id.snackbar_text)).setTextColor(messageColor);
}
return this;
}
/**
* 获得TextViev实例
*/
public TextView getTextView(){
if(getSnackbar()!=null){
return ((TextView)getSnackbar().getView().findViewById(R.id.snackbar_text));
}else{
return null;
}
}
/**
* 设置Button(@+id/snackbar_action)的文字颜色
* @param actionTextColor
*/
public SnackbarUtils actionColor(@ColorInt int actionTextColor){
if(getSnackbar()!=null){
((Button)getSnackbar().getView().findViewById(R.id.snackbar_action)).setTextColor(actionTextColor);
}
return this;
}
/**
* 设置 Snackbar背景色 + TextView(@+id/snackbar_text)的文字颜色 + Button(@+id/snackbar_action)的文字颜色
* @param backgroundColor
* @param messageColor
* @param actionTextColor
*/
public SnackbarUtils colors(@ColorInt int backgroundColor, @ColorInt int messageColor, @ColorInt int actionTextColor){
if(getSnackbar()!=null){
getSnackbar().getView().setBackgroundColor(backgroundColor);
((TextView)getSnackbar().getView().findViewById(R.id.snackbar_text)).setTextColor(messageColor);
((Button)getSnackbar().getView().findViewById(R.id.snackbar_action)).setTextColor(actionTextColor);
}
return this;
}
/**
* 设置Snackbar 背景透明度
* @param alpha
* @return
*/
public SnackbarUtils alpha(float alpha){
if(getSnackbar()!=null){
alpha = alpha>=1.0f?1.0f:(alpha<=0.0f?0.0f:alpha);
getSnackbar().getView().setAlpha(alpha);
}
return this;
}
/**
* 设置Snackbar显示的位置
* @param gravity
*/
public SnackbarUtils gravityFrameLayout(int gravity){
if(getSnackbar()!=null){
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(getSnackbar().getView().getLayoutParams().width,getSnackbar().getView().getLayoutParams().height);
params.gravity = gravity;
getSnackbar().getView().setLayoutParams(params);
}
return this;
}
/**
* 设置Snackbar显示的位置,当Snackbar和CoordinatorLayout组合使用的时候
* @param gravity
*/
public SnackbarUtils gravityCoordinatorLayout(int gravity){
if(getSnackbar()!=null){
CoordinatorLayout.LayoutParams params = new CoordinatorLayout.LayoutParams(getSnackbar().getView().getLayoutParams().width,getSnackbar().getView().getLayoutParams().height);
params.gravity = gravity;
getSnackbar().getView().setLayoutParams(params);
}
return this;
}
/**
* 设置按钮文字内容 及 点击监听
* {@link Snackbar#setAction(CharSequence, View.OnClickListener)}
* @param resId
* @param listener
* @return
*/
public SnackbarUtils setAction(@StringRes int resId, View.OnClickListener listener){
if(getSnackbar()!=null){
return setAction(getSnackbar().getView().getResources().getText(resId), listener);
}else {
return this;
}
}
/**
* 设置按钮文字内容 及 点击监听
* {@link Snackbar#setAction(CharSequence, View.OnClickListener)}
* @param text
* @param listener
* @return
*/
public SnackbarUtils setAction(CharSequence text, View.OnClickListener listener){
if(getSnackbar()!=null){
getSnackbar().setAction(text,listener);
}
return this;
}
/**
* 设置 mSnackbar 展示完成 及 隐藏完成 的监听
* @param setCallback
* @return
*/
public SnackbarUtils setCallback(Snackbar.Callback setCallback){
if(getSnackbar()!=null){
getSnackbar().setCallback(setCallback);
}
return this;
}
/**
* 设置TextView(@+id/snackbar_text)左右两侧的图片
* @param leftDrawable
* @param rightDrawable
* @return
*/
public SnackbarUtils leftAndRightDrawable(@Nullable @DrawableRes Integer leftDrawable, @Nullable @DrawableRes Integer rightDrawable){
if(getSnackbar()!=null){
Drawable drawableLeft = null;
Drawable drawableRight = null;
if(leftDrawable!=null){
try {
drawableLeft = getSnackbar().getView().getResources().getDrawable(leftDrawable.intValue());
}catch (Exception e){
}
}
if(rightDrawable!=null){
try {
drawableRight = getSnackbar().getView().getResources().getDrawable(rightDrawable.intValue());
}catch (Exception e){
}
}
return leftAndRightDrawable(drawableLeft,drawableRight);
}else {
return this;
}
}
/**
* 设置TextView(@+id/snackbar_text)左右两侧的图片
* @param leftDrawable
* @param rightDrawable
* @return
*/
public SnackbarUtils leftAndRightDrawable(@Nullable Drawable leftDrawable, @Nullable Drawable rightDrawable){
if(getSnackbar()!=null){
TextView message = (TextView) getSnackbar().getView().findViewById(R.id.snackbar_text);
LinearLayout.LayoutParams paramsMessage = (LinearLayout.LayoutParams) message.getLayoutParams();
paramsMessage = new LinearLayout.LayoutParams(paramsMessage.width, paramsMessage.height,0.0f);
message.setLayoutParams(paramsMessage);
message.setCompoundDrawablePadding(message.getPaddingLeft());
int textSize = (int) message.getTextSize();
Log.e("Jet","textSize:"+textSize);
if(leftDrawable!=null){
leftDrawable.setBounds(0,0,textSize,textSize);
}
if(rightDrawable!=null){
rightDrawable.setBounds(0,0,textSize,textSize);
}
message.setCompoundDrawables(leftDrawable,null,rightDrawable,null);
LinearLayout.LayoutParams paramsSpace = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT,1.0f);
((Snackbar.SnackbarLayout)getSnackbar().getView()).addView(new Space(getSnackbar().getView().getContext()),1,paramsSpace);
}
return this;
}
/**
* 设置TextView(@+id/snackbar_text)中文字的对齐方式 居中
* @return
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public SnackbarUtils messageCenter(){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1){
if(getSnackbar()!=null){
TextView message = (TextView) getSnackbar().getView().findViewById(R.id.snackbar_text);
//View.setTextAlignment需要SDK>=17
message.setTextAlignment(View.TEXT_ALIGNMENT_GRAVITY);
message.setGravity(Gravity.CENTER);
message.setMaxLines(1);
}
}
return this;
}
/**
* 设置TextView(@+id/snackbar_text)中文字的对齐方式 居右
* @return
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public SnackbarUtils messageRight(){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1){
if(getSnackbar()!=null){
TextView message = (TextView) getSnackbar().getView().findViewById(R.id.snackbar_text);
//View.setTextAlignment需要SDK>=17
message.setTextAlignment(View.TEXT_ALIGNMENT_GRAVITY);
message.setGravity(Gravity.CENTER_VERTICAL|Gravity.RIGHT);
}
}
return this;
}
/**
* 向Snackbar布局中添加View(Google不建议,复杂的布局应该使用DialogFragment进行展示)
* @param layoutId 要添加的View的布局文件ID
* @param index
* @return
*/
public SnackbarUtils addView(int layoutId, int index) {
if(getSnackbar()!=null){
//加载布局文件新建View
View addView = LayoutInflater.from(getSnackbar().getView().getContext()).inflate(layoutId,null);
return addView(addView,index);
}else {
return this;
}
}
/**
* 向Snackbar布局中添加View(Google不建议,复杂的布局应该使用DialogFragment进行展示)
* @param addView
* @param index
* @return
*/
public SnackbarUtils addView(View addView, int index) {
if(getSnackbar()!=null){
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);//设置新建布局参数
//设置新建View在Snackbar内垂直居中显示
params.gravity= Gravity.CENTER_VERTICAL;
addView.setLayoutParams(params);
((Snackbar.SnackbarLayout)getSnackbar().getView()).addView(addView,index);
}
return this;
}
/**
* 设置Snackbar布局的外边距
* 注:经试验发现,调用margins后再调用 gravityFrameLayout,则margins无效.
* 为保证margins有效,应该先调用 gravityFrameLayout,在 show() 之前调用 margins
* @param margin
* @return
*/
public SnackbarUtils margins(int margin){
if(getSnackbar()!=null){
return margins(margin,margin,margin,margin);
}else {
return this;
}
}
/**
* 设置Snackbar布局的外边距
* 注:经试验发现,调用margins后再调用 gravityFrameLayout,则margins无效.
* 为保证margins有效,应该先调用 gravityFrameLayout,在 show() 之前调用 margins
* @param left
* @param top
* @param right
* @param bottom
* @return
*/
public SnackbarUtils margins(int left, int top, int right, int bottom){
if(getSnackbar()!=null){
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(left,top,right,bottom);
getSnackbar().getView().setLayoutParams(params);
}
return this;
}
/**
* 经试验发现:
* 执行过{@link SnackbarUtils#backColor(int)}后:background instanceof ColorDrawable
* 未执行过{@link SnackbarUtils#backColor(int)}:background instanceof GradientDrawable
* @return
*/
/*
public SnackbarUtils radius(){
Drawable background = snackbarWeakReference.get().getView().getBackground();
if(background instanceof GradientDrawable){
Log.e("Jet","radius():GradientDrawable");
}
if(background instanceof ColorDrawable){
Log.e("Jet","radius():ColorDrawable");
}
if(background instanceof StateListDrawable){
Log.e("Jet","radius():StateListDrawable");
}
Log.e("Jet","radius()background:"+background.getClass().getSimpleName());
return new SnackbarUtils(mSnackbar);
}
*/
/**
* 通过SnackBar现在的背景,获取其设置圆角值时候所需的GradientDrawable实例
* @param backgroundOri
* @return
*/
private GradientDrawable getRadiusDrawable(Drawable backgroundOri){
GradientDrawable background = null;
if(backgroundOri instanceof GradientDrawable){
background = (GradientDrawable) backgroundOri;
}else if(backgroundOri instanceof ColorDrawable){
int backgroundColor = ((ColorDrawable)backgroundOri).getColor();
background = new GradientDrawable();
background.setColor(backgroundColor);
}else {
}
return background;
}
/**
* 设置Snackbar布局的圆角半径值
* @param radius 圆角半径
* @return
*/
public SnackbarUtils radius(float radius){
if(getSnackbar()!=null){
//将要设置给mSnackbar的背景
GradientDrawable background = getRadiusDrawable(getSnackbar().getView().getBackground());
if(background != null){
radius = radius<=0?12:radius;
background.setCornerRadius(radius);
getSnackbar().getView().setBackgroundDrawable(background);
}
}
return this;
}
/**
* 设置Snackbar布局的圆角半径值及边框颜色及边框宽度
* @param radius
* @param strokeWidth
* @param strokeColor
* @return
*/
public SnackbarUtils radius(int radius, int strokeWidth, @ColorInt int strokeColor){
if(getSnackbar()!=null){
//将要设置给mSnackbar的背景
GradientDrawable background = getRadiusDrawable(getSnackbar().getView().getBackground());
if(background != null){
radius = radius<=0?12:radius;
strokeWidth = strokeWidth<=0?1:(strokeWidth>=getSnackbar().getView().findViewById(R.id.snackbar_text).getPaddingTop()?2:strokeWidth);
background.setCornerRadius(radius);
background.setStroke(strokeWidth,strokeColor);
getSnackbar().getView().setBackgroundDrawable(background);
}
}
return this;
}
/**
* 计算单行的Snackbar的高度值(单位 pix)
* @return
*/
private int calculateSnackBarHeight(){
/*
<TextView
android:id="@+id/snackbar_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingTop="@dimen/design_snackbar_padding_vertical"
android:paddingBottom="@dimen/design_snackbar_padding_vertical"
android:paddingLeft="@dimen/design_snackbar_padding_horizontal"
android:paddingRight="@dimen/design_snackbar_padding_horizontal"
android:textAppearance="@style/TextAppearance.Design.Snackbar.Message"
android:maxLines="@integer/design_snackbar_text_max_lines"
android:layout_gravity="center_vertical|left|start"
android:ellipsize="end"
android:textAlignment="viewStart"/>
*/
//文字高度+paddingTop+paddingBottom : 14sp + 14dp*2
int SnackbarHeight = ScreenUtil.dp2px(getSnackbar().getView().getContext(),28) + ScreenUtil.sp2px(getSnackbar().getView().getContext(),14);
Log.e("Jet","直接获取MessageView高度:"+getSnackbar().getView().findViewById(R.id.snackbar_text).getHeight());
return SnackbarHeight;
}
/**
* 设置Snackbar显示在指定View的上方
* 注:暂时仅支持单行的Snackbar,因为{@link SnackbarUtils#calculateSnackBarHeight()}暂时仅支持单行Snackbar的高度计算
* @param targetView 指定View
* @param contentViewTop Activity中的View布局区域 距离屏幕顶端的距离
* @param marginLeft 左边距
* @param marginRight 右边距
* @return
*/
public SnackbarUtils above(View targetView, int contentViewTop, int marginLeft, int marginRight){
if(getSnackbar()!=null){
marginLeft = marginLeft<=0?0:marginLeft;
marginRight = marginRight<=0?0:marginRight;
int[] locations = new int[2];
targetView.getLocationOnScreen(locations);
Log.e("Jet","距离屏幕左侧:"+locations[0]+"==距离屏幕顶部:"+locations[1]);
int snackbarHeight = calculateSnackBarHeight();
Log.e("Jet","Snackbar高度:"+snackbarHeight);
//必须保证指定View的顶部可见 且 单行Snackbar可以完整的展示
if(locations[1] >= contentViewTop+snackbarHeight){
gravityFrameLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,getSnackbar().getView().getResources().getDisplayMetrics().heightPixels-locations[1]);
getSnackbar().getView().setLayoutParams(params);
}
}
return this;
}
//CoordinatorLayout
public SnackbarUtils aboveCoordinatorLayout(View targetView, int contentViewTop, int marginLeft, int marginRight){
if(getSnackbar()!=null){
marginLeft = marginLeft<=0?0:marginLeft;
marginRight = marginRight<=0?0:marginRight;
int[] locations = new int[2];
targetView.getLocationOnScreen(locations);
Log.e("Jet","距离屏幕左侧:"+locations[0]+"==距离屏幕顶部:"+locations[1]);
int snackbarHeight = calculateSnackBarHeight();
Log.e("Jet","Snackbar高度:"+snackbarHeight);
//必须保证指定View的顶部可见 且 单行Snackbar可以完整的展示
if(locations[1] >= contentViewTop+snackbarHeight){
gravityCoordinatorLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,getSnackbar().getView().getResources().getDisplayMetrics().heightPixels-locations[1]);
getSnackbar().getView().setLayoutParams(params);
}
}
return this;
}
/**
* 设置Snackbar显示在指定View的下方
* 注:暂时仅支持单行的Snackbar,因为{@link SnackbarUtils#calculateSnackBarHeight()}暂时仅支持单行Snackbar的高度计算
* @param targetView 指定View
* @param contentViewTop Activity中的View布局区域 距离屏幕顶端的距离
* @param marginLeft 左边距
* @param marginRight 右边距
* @return
*/
public SnackbarUtils bellow(View targetView, int contentViewTop, int marginLeft, int marginRight){
if(getSnackbar()!=null){
marginLeft = marginLeft<=0?0:marginLeft;
marginRight = marginRight<=0?0:marginRight;
int[] locations = new int[2];
targetView.getLocationOnScreen(locations);
int snackbarHeight = calculateSnackBarHeight();
int screenHeight = ScreenUtil.getScreenHeight(getSnackbar().getView().getContext());
//必须保证指定View的底部可见 且 单行Snackbar可以完整的展示
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
//为什么要'+2'? 因为在Android L(Build.VERSION_CODES.LOLLIPOP)以上,例如Button会有一定的'阴影(shadow)',阴影的大小由'高度(elevation)'决定.
//为了在Android L以上的系统中展示的Snackbar不要覆盖targetView的阴影部分太大比例,所以人为减小2px的layout_marginBottom属性.
if(locations[1]+targetView.getHeight()>=contentViewTop&&locations[1]+targetView.getHeight()+snackbarHeight+2<=screenHeight){
gravityFrameLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,screenHeight - (locations[1]+targetView.getHeight()+snackbarHeight+2));
getSnackbar().getView().setLayoutParams(params);
}
}else {
if(locations[1]+targetView.getHeight()>=contentViewTop&&locations[1]+targetView.getHeight()+snackbarHeight<=screenHeight){
gravityFrameLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,screenHeight - (locations[1]+targetView.getHeight()+snackbarHeight));
getSnackbar().getView().setLayoutParams(params);
}
}
}
return this;
}
public SnackbarUtils bellowCoordinatorLayout(View targetView, int contentViewTop, int marginLeft, int marginRight){
if(getSnackbar()!=null){
marginLeft = marginLeft<=0?0:marginLeft;
marginRight = marginRight<=0?0:marginRight;
int[] locations = new int[2];
targetView.getLocationOnScreen(locations);
int snackbarHeight = calculateSnackBarHeight();
int screenHeight = ScreenUtil.getScreenHeight(getSnackbar().getView().getContext());
//必须保证指定View的底部可见 且 单行Snackbar可以完整的展示
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
//为什么要'+2'? 因为在Android L(Build.VERSION_CODES.LOLLIPOP)以上,例如Button会有一定的'阴影(shadow)',阴影的大小由'高度(elevation)'决定.
//为了在Android L以上的系统中展示的Snackbar不要覆盖targetView的阴影部分太大比例,所以人为减小2px的layout_marginBottom属性.
if(locations[1]+targetView.getHeight()>=contentViewTop&&locations[1]+targetView.getHeight()+snackbarHeight+2<=screenHeight){
gravityCoordinatorLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,screenHeight - (locations[1]+targetView.getHeight()+snackbarHeight+2));
getSnackbar().getView().setLayoutParams(params);
}
}else {
if(locations[1]+targetView.getHeight()>=contentViewTop&&locations[1]+targetView.getHeight()+snackbarHeight<=screenHeight){
gravityCoordinatorLayout(Gravity.BOTTOM);
ViewGroup.LayoutParams params = getSnackbar().getView().getLayoutParams();
((ViewGroup.MarginLayoutParams) params).setMargins(marginLeft,0,marginRight,screenHeight - (locations[1]+targetView.getHeight()+snackbarHeight));
getSnackbar().getView().setLayoutParams(params);
}
}
}
return this;
}
/**
* 设置TextView文字Size
* @return
*/
public SnackbarUtils textandactionSize(int textSize,int actionSize){
if(getSnackbar()!=null){
TextView message = (TextView) getSnackbar().getView().findViewById(R.id.snackbar_text);
Button action = (Button) getSnackbar().getView().findViewById(R.id.snackbar_action);
message.setTextSize(textSize);
action.setTextSize(actionSize);
}
return this;
}
/**
* 设置TextView文字Size
* @return
*/
public SnackbarUtils textSize(int textSize){
if(getSnackbar()!=null){
TextView message = (TextView) getSnackbar().getView().findViewById(R.id.snackbar_text);
message.setTextSize(textSize);
}
return this;
}
/**
* 设置TextView文字Size
* @return
*/
public SnackbarUtils actionSize(int actionSize){
if(getSnackbar()!=null){
Button action = (Button) getSnackbar().getView().findViewById(R.id.snackbar_action);
action.setTextSize(actionSize);
}
return this;
}
/**
* 显示 mSnackbar
*/
public void show(){
Log.e("Jet","show()");
if(getSnackbar()!=null){
Log.e("Jet","show");
getSnackbar().show();
}else {
Log.e("Jet","已经被回收");
}
}
}