【移動應用開發(fā)技術(shù)】android中如何解決基于界面適配華為手機虛擬按鍵的問題

【移動應用開發(fā)技術(shù)】android中如何解決基于界面適配華為手機虛擬按鍵的問題

一、概述/upload/information/20200623/125/124437.jpg二、布局由于虛擬按鍵導致導航欄頂上去的解決方法if

(AndroidWorkaround.checkDeviceHasNavigationBar(this))

{

AndroidWorkaround.assistActivity(findViewById(android.R.id.content));

}/**

*

解決底部屏幕按鍵適配

*

Created

by

Mercury

on

2016/10/25.

*/

public

class

AndroidWorkaround

{

public

static

void

assistActivity(View

content)

{

new

AndroidWorkaround(content);

}

private

View

mChildOfContent;

private

int

usableHeightPrevious;

private

ViewGroup.LayoutParams

frameLayoutParams;

private

AndroidWorkaround(View

content)

{

mChildOfContent

=

content;

mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(new

ViewTreeObserver.OnGlobalLayoutListener()

{

public

void

onGlobalLayout()

{

possiblyResizeChildOfContent();

}

});

frameLayoutParams

=

mChildOfContent.getLayoutParams();

}

private

void

possiblyResizeChildOfContent()

{

int

usableHeightNow

=

computeUsableHeight();

if

(usableHeightNow

!=

usableHeightPrevious)

{

frameLayoutParams.height

=

usableHeightNow;

mChildOfContent.requestLayout();

usableHeightPrevious

=

usableHeightNow;

}

}

private

int

computeUsableHeight()

{

Rect

r

=

new

Rect();

mChildOfContent.getWindowVisibleDisplayFrame(r);

return

(r.bottom);

}

public

static

boolean

checkDeviceHasNavigationBar(Context

context)

{

boolean

hasNavigationBar

=

false;

Resources

rs

=

context.getResources();

int

id

=

rs.getIdentifier("config_showNavigationBar",

"bool",

"android");

if

(id

>

0)

{

hasNavigationBar

=

rs.getBoolean(id);

}

try

{

Class

systemPropertiesClass

=

Class.forName("android.os.SystemProperties");

Method

m

=

systemPropertiesClass.getMethod("get",

String.class);

String

navBarOverride

=

(String)

m.invoke(systemPropertiesClass,

"qemu.hw.mainkeys");

if

("1".equals(navBarOverride))

{

hasNavigationBar

=

false;

}

else

if

("0".equals(navBarOverride))

{

hasNavigationBar

=

true;

}

}

catch

(Exception

e)

{

}

return

hasNavigationBar