检测软键盘的弹起与隐藏【绝对经典，好用】 ...

01

package

com.ransj.keyboard;

02

03

import

android.content.Context;

04

import

android.util.AttributeSet;

05

import

android.util.Log;

06

import

android.widget.RelativeLayout;

07

08

public

class

KeyboardLayout

extends

RelativeLayout {

09

private

static

final

String TAG = KeyboardLayout.

class

.getSimpleName();

10

public

static

final

byte

KEYBOARD_STATE_SHOW = -

3

;

11

public

static

final

byte

KEYBOARD_STATE_HIDE = -

2

;

12

public

static

final

byte

KEYBOARD_STATE_INIT = -

1

;

13

private

boolean

mHasInit;

14

private

boolean

mHasKeybord;

15

private

int

mHeight;

16

private

onKybdsChangeListener mListener;

17

18

public

KeyboardLayout(Context context,AttributeSet attrs,

int

defStyle) {

19

super

(context,attrs, defStyle);

20

}

21

22

public

KeyboardLayout(Context context,AttributeSet attrs) {

23

super

(context,attrs);

24

}

25

26

public

KeyboardLayout(Context context) {

27

super

(context);

28

}

29

/**

30

* set keyboard state listener

31

*/

32

public

void

setOnkbdStateListener(onKybdsChangeListener listener){

33

mListener = listener;

34

}

35

@Override

36

protected

void

onLayout(

boolean

changed,

int

l,

int

t,

int

r,

int

b) {

37

super

.onLayout(changed,l, t,r,b);

38

if

(!mHasInit) {

39

mHasInit =

true

;

40

mHeight = b;

41

if

(mListener !=

null

) {

42

mListener.onKeyBoardStateChange(KEYBOARD_STATE_INIT);

43

}

44

}

else

{

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mHeight = mHeight < b ? b : mHeight;

46

}

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if

(mHasInit && mHeight > b) {

48

mHasKeybord =

true

;

49

if

(mListener !=

null

) {

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mListener.onKeyBoardStateChange(KEYBOARD_STATE_SHOW);

51

}

52

Log.w(TAG,

"show keyboard......."

);

53

}

54

if

(mHasInit && mHasKeybord && mHeight == b) {

55

mHasKeybord =

false

;

56

if

(mListener !=

null

) {

57

mListener.onKeyBoardStateChange(KEYBOARD_STATE_HIDE);

58

}

59

Log.w(TAG,

"hide keyboard......."

);

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}

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}

62

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public

interface

onKybdsChangeListener{

64

public

void

onKeyBoardStateChange(

int

state);

65

}

66

}

01

<?xml version=

"1.0"

encoding=

"utf-8"

?>

02

<com.ransj.keyboard.KeyboardLayoutxmlns:android=

"http://schemas.android.com/apk/res/android"

03

android:id=

"@+id/keyboardLayout1"

04

android:layout_width=

"fill_parent"

05

android:layout_height=

"fill_parent"

>

06

07

<ScrollView

08

android:layout_width=

"fill_parent"

09

android:layout_height=

"fill_parent"

10

android:layout_alignParentLeft=

"true"

11

android:layout_alignParentTop=

"true"

12

android:fillViewport=

"true"

>

13

14

<LinearLayout

15

android:layout_width=

"fill_parent"

16

android:layout_height=

"wrap_content"

17

android:orientation=

"vertical"

>

18

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<TextView

20

android:id=

"@+id/testone_tv"

21

android:layout_width=

"fill_parent"

22

android:layout_height=

"wrap_content"

23

android:background=

"#000000"

24

android:gravity=

"center"

25

android:text=

"软件盘弹起，我将消失!软键盘隐藏，我将回来!"

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android:layout_weight=

"1.0"

27

android:textColor=

"#00ff00"

28

android:textStyle=

"bold"

/>

29

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<EditText

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android:id=

"@+id/testone_et"

32

android:layout_width=

"fill_parent"

33

android:layout_height=

"wrap_content"

></EditText>

34

</LinearLayout>

35

</ScrollView>

36

37

</com.ransj.keyboard.KeyboardLayout>

01

package

com.ransj.keyboard;

02

03

import

com.ransj.keyboard.KeyboardLayout.onKybdsChangeListener;

04

05

import

android.app.Activity;

06

import

android.os.Bundle;

07

import

android.view.View;

08

import

android.widget.TextView;

09

import

android.widget.Toast;

10

/**

11

*

12

*

13

*/

14

public

class

TestOne

extends

Activity{

15

16

@Override

17

protected

void

onCreate(Bundle savedInstanceState) {

18

super

.onCreate(savedInstanceState);

19

setContentView(R.layout.testone);

20

KeyboardLayoutmainView = (KeyboardLayout) findViewById(R.id.keyboardLayout1);

21

final

TextView tv = (TextView) findViewById(R.id.testone_tv);

22

mainView.setOnkbdStateListener(

new

onKybdsChangeListener() {

23

24

public

void

onKeyBoardStateChange(

int

state) {

25

switch

(state) {

26

case

KeyboardLayout.KEYBOARD_STATE_HIDE:

27

tv.setVisibility(View.VISIBLE);

28

Toast.makeText(getApplicationContext(),

"软键盘隐藏"

, Toast.LENGTH_SHORT).show();

29

break

;

30

case

KeyboardLayout.KEYBOARD_STATE_SHOW:

31

tv.setVisibility(View.INVISIBLE);

32

Toast.makeText(getApplicationContext(),

"软键盘弹起"

, Toast.LENGTH_SHORT).show();

33

break

;

34

}

35

}

36

});

37

}

38

39

@Override

40

protected

void

onDestroy() {

41

super

.onDestroy();

42

}

43

44

@Override

45

protected

void

onPause() {

46

super

.onPause();

47

}

48

}