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android_common/common/src/main/java/org/yang/common/components/PasswordEditText.java at master · Bra
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/
PasswordEditText.java
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package
org
.
yang
.
common
.
components
;
import
android
.
content
.
Context
;
import
android
.
graphics
.
drawable
.
Drawable
;
import
android
.
support
.
v4
.
content
.
ContextCompat
;
import
android
.
support
.
v7
.
widget
.
AppCompatEditText
;
import
android
.
text
.
Editable
;
import
android
.
text
.
TextWatcher
;
import
android
.
text
.
method
.
HideReturnsTransformationMethod
;
import
android
.
text
.
method
.
PasswordTransformationMethod
;
import
android
.
text
.
method
.
TransformationMethod
;
import
android
.
util
.
AttributeSet
;
import
android
.
view
.
MotionEvent
;
import
android
.
view
.
View
;
import
android
.
view
.
View
.
OnFocusChangeListener
;
import
org
.
yang
.
common
.
R
;
public
class
PasswordEditText
extends
AppCompatEditText
implements
OnFocusChangeListener
,
TextWatcher
{
/**
* 密码按钮的引用
*/
private
Drawable
mEye
;
private
Drawable
mEyeShow
;
private
boolean
hasFoucs
;
private
String
TAG
=
getClass
().
getSimpleName
();
public
PasswordEditText
(
Context
context
) {
this
(
context
,
null
);
}
public
PasswordEditText
(
Context
context
,
AttributeSet
attrs
) {
// 这里构造方法也很重要，不加这个很多属性不能再XML里面定义
this
(
context
,
attrs
,
android
.
R
.
attr
.
editTextStyle
);
}
public
PasswordEditText
(
Context
context
,
AttributeSet
attrs
,
int
defStyle
) {
super
(
context
,
attrs
,
defStyle
);
init
();
}
private
void
init
() {
// 获取EditText的DrawableRight,假如没有设置我们就使用默认的图片,2是获得右边的图片 顺序是左上右下（0,1,2,3,）
mEye
=
getCompoundDrawables
()[
2
];
mEyeShow
=
getCompoundDrawables
()[
2
];
if
(
mEye
==
null
) {
mEye
=
ContextCompat
.
getDrawable
(
getContext
(),
R
.
mipmap
.
hide
);
}
if
(
mEyeShow
==
null
) {
mEyeShow
=
ContextCompat
.
getDrawable
(
getContext
(),
R
.
mipmap
.
show
);
}
mEyeShow
.
setBounds
(
0
,
0
,
mEye
.
getIntrinsicWidth
(),
mEye
.
getIntrinsicHeight
());
mEye
.
setBounds
(
0
,
0
,
mEye
.
getIntrinsicWidth
(),
mEye
.
getIntrinsicHeight
());
// 默认设置隐藏图标
setClearIconVisible
(
true
);
// 设置焦点改变的监听
setOnFocusChangeListener
(
this
);
// 设置输入框里面内容发生改变的监听
addTextChangedListener
(
this
);
}
/**
* 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件 当我们按下的位置 在 EditText的宽度 -
* 图标到控件右边的间距 - 图标的宽度 和 EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向就没有考虑
*/
@
Override
public
boolean
onTouchEvent
(
MotionEvent
event
) {
if
(
event
.
getAction
() ==
MotionEvent
.
ACTION_UP
) {
if
(
getCompoundDrawables
()[
2
] !=
null
) {
boolean
touchable
=
event
.
getX
() > (
getWidth
() -
getTotalPaddingRight
())
&& (
event
.
getX
() < ((
getWidth
() -
getPaddingRight
())));
if
(
touchable
) {
TransformationMethod
transformationMethod
=
getTransformationMethod
();
if
(
transformationMethod
instanceof
HideReturnsTransformationMethod
) {
setTransformationMethod
(
PasswordTransformationMethod
.
getInstance
());
}
else
if
(
transformationMethod
instanceof
PasswordTransformationMethod
) {
setTransformationMethod
(
HideReturnsTransformationMethod
.
getInstance
());
}
}
}
}
return
super
.
onTouchEvent
(
event
);
}
/**
* 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
*/
@
Override
public
void
onFocusChange
(
View
v
,
boolean
hasFocus
) {
this
.
hasFoucs
=
hasFocus
;
if
(
hasFocus
) {
// setClearIconVisible(getText().length() > 0);
setClearIconVisible
(
true
);
}
else
{
// setClearIconVisible(false);
setClearIconVisible
(
true
);
}
}
/**
* 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
*
* @param visible
*/
protected
void
setClearIconVisible
(
boolean
visible
) {
Drawable
right
=
visible
?
mEyeShow
:
null
;
setCompoundDrawables
(
getCompoundDrawables
()[
0
],
getCompoundDrawables
()[
1
],
right
,
getCompoundDrawables
()[
3
]);
TransformationMethod
transformationMethod
=
getTransformationMethod
();
if
(
transformationMethod
instanceof
HideReturnsTransformationMethod
&&
right
!=
null
) {
setCompoundDrawables
(
getCompoundDrawables
()[
0
],
getCompoundDrawables
()[
1
],
mEye
,
getCompoundDrawables
()[
3
]);
}
/**
* 当输入框里面内容发生变化的时候回调的方法
*/
@
Override
public
void
onTextChanged
(
CharSequence
s
,
int
start
,
int
count
,
int
after
) {
if
(
hasFoucs
) {
setClearIconVisible
(
s
.
length
() >
0
);
}
}
@
Override
public
void
beforeTextChanged
(
CharSequence
s
,
int
start
,
int
count
,
int
after
) {
@
Override
public
void
afterTextChanged
(
Editable
s
) {
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