Android优雅的方式解决软键盘遮挡按钮问题

前言

比如在进行登录的操作中，用户输入完密码之后，肯定是想直接点击登录按钮的。返回键隐藏软键盘这样的体验肯定很糟糕，程序员，遇到问题解决问题。

实现1

xml

<scrollview
android:id="@+id/scrollview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fadingedge="none"
android:scrollbars="none">
<linearlayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<imageview
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_gravity="center_horizontal"
android:layout_margintop="20dp"
android:src="@mipmap/ic_loginhead"/>
<edittext
android:id="@+id/et_usernamelogin_username"
style="@style/customedittext"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_margintop="10dp"
android:background="@null"
android:hint="请输入已验证手机"
android:inputtype="number"
android:lines="1"
android:maxlength="11"/>
<imageview
android:layout_width="match_parent"
android:layout_height="2px"
android:layout_marginleft="50dp"
android:layout_marginright="50dp"
android:background="@color/pating_line"/>
<edittext
android:id="@+id/et_usernamelogin_password"
style="@style/customedittext"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_margintop="20dp"
android:background="@null"
android:digits="0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz_?"
android:hint="请输入密码"
android:inputtype="textpassword"/>
<imageview
android:layout_width="match_parent"
android:layout_height="2px"
android:layout_marginleft="50dp"
android:layout_marginright="50dp"
android:background="@color/pating_line"/>
<button
android:id="@+id/btn_usernamelogin_dologin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginleft="50dp"
android:layout_marginright="50dp"
android:layout_margintop="30dp"
android:background="@drawable/btn_selecter"
android:enabled="false"
android:text="登录"
android:textcolor="@color/white"
/>
</linearlayout>
</scrollview>

java

mscrollview=(scrollview)view.findviewbyid(r.id.scrollview);
usernamelogin_username.setontouchlistener(newview.ontouchlistener(){
@override
publicbooleanontouch(viewv,motioneventevent){
changescrollview();
returnfalse;
}
});
usernamelogin_password.setontouchlistener(newview.ontouchlistener(){
@override
publicbooleanontouch(viewv,motioneventevent){
changescrollview();
returnfalse;
}
});

 /**
 *使scrollview指向底部
 */
 privatevoidchangescrollview(){
 newhandler().postdelayed(newrunnable(){
 @override
 publicvoidrun(){
 mscrollview.scrollto(0,mscrollview.getheight());
 }
 },300);
 }

实现2

xml同上

anim下新建gone.xml

<?xml version="1.0" encoding="utf-8"?>
<scale xmlns:android="http://schemas.android.com/apk/res/android"  
 android:fromxscale="1.0" 
 android:toxscale="0.0" 
 android:fromyscale="1.0" 
 android:toyscale="0.0" 
 android:pivotx="50%" 
 android:pivoty="50%" 
 android:duration="500" 
 android:repeatcount="0"/>

visiable.xml

<?xml version="1.0" encoding="utf-8"?>
 <scale xmlns:android="http://schemas.android.com/apk/res/android" 
 android:fromxscale="0.0" 
 android:toxscale="1.0" 
 android:fromyscale="0.0" 
 android:toyscale="1.0" 
 android:pivotx="50%" 
 android:pivoty="50%" 
 android:duration="500" 
 android:repeatcount="0"/>

或者直接在代码中

importandroid.os.bundle;
importandroid.os.handler;
importandroid.support.v7.app.appcompatactivity;
importandroid.view.keyevent;
importandroid.view.motionevent;
importandroid.view.view;
importandroid.view.animation.animation;
importandroid.view.animation.animationset;
importandroid.view.animation.scaleanimation;
importandroid.widget.button;
importandroid.widget.edittext;
importandroid.widget.imageview;
publicclassmainactivityextendsappcompatactivity{
privateimageviewmhead;//头部imageview
@override
protectedvoidoncreate(bundlesavedinstancestate){
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
mhead=(imageview)findviewbyid(r.id.iv_head);
finalbuttonbtn=(button)findviewbyid(r.id.btn_usernamelogin_dologin);
finaledittextet_pass=(edittext)findviewbyid(r.id.et_usernamelogin_password);
finaledittextet_name=(edittext)findviewbyid(r.id.et_usernamelogin_username);
/**
*当输入被点击
*/
et_name.setontouchlistener(newview.ontouchlistener(){
@override
publicbooleanontouch(viewv,motioneventevent){
start();
returnfalse;
}
});
btn.setenabled(false);
btn.setonclicklistener(newview.onclicklistener(){
@override
publicvoidonclick(viewv){
}
});
}
privatevoidstart(){
animationsetanimationset=newanimationset(true);
scaleanimationscaleanimation=newscaleanimation(
1,0.1f,1,0.1f,
animation.relative_to_self,0.5f,
animation.relative_to_self,0.5f);
scaleanimation.setduration(500);
animationset.addanimation(scaleanimation);
animationset.setfillafter(true);
animationset.setfillbefore(false);
animationset.setrepeatcount(0);//设置重复次数
mhead.startanimation(scaleanimation);
newhandler().postdelayed(newrunnable(){
@override
publicvoidrun(){
mhead.setvisibility(view.gone);
}
},500);
}
/**
*菜单、返回键响应
*/
@override
publicbooleanonkeydown(intkeycode,keyeventevent){
//todoauto-generatedmethodstub
if(keycode==keyevent.keycode_back){
if(mhead.getvisibility()==view.gone){
animationsetanimationset=newanimationset(true);
scaleanimationscaleanimation=newscaleanimation(
0.1f,1f,0.1f,1f,
animation.relative_to_self,0.5f,
animation.relative_to_self,0.5f);
scaleanimation.setduration(500);
animationset.addanimation(scaleanimation);
animationset.setfillafter(true);
animationset.setfillbefore(false);
mhead.startanimation(scaleanimation);
mhead.setvisibility(view.visible);
}else{
finish();
}
}
returnfalse;
 }
}

效果呢：

 

以上所述是小编给大家介绍的android优雅的方式解决软键盘遮挡按钮问题，希望对大家有所帮助