步骤
1、编写布局文件layout_topbar.xml,使用相对布局,左边一个button,跟父控件左对齐后外边距为5dp,右边的button也是一样,中间的标题居中显示 。
ncoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/leftButton"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="5dp" />
<TextView
android:id="@+id/titleText"
android:layout_width="100dp"
android:layout_height="100dp"
android:paddingTop="6dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:gravity="center" />
<Button
android:id="@+id/rightButton"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="5dp" />
</RelativeLayout>
2.编写自定义控件,继承RelativeLayout,获取自定义属性并给对应的控件赋值 。
package com.example.ddf;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
/**
* 描述:自定义topbar的实现
* <p>
* Created by djj on 2016/12/23.
*/
public class TopBar extends RelativeLayout {
private Button leftButton, rightButton;
private TextView titleTextView;
private OnLeftAndRightClickListener listener;//监听点击事件
//设置监听器
public void setOnLeftAndRightClickListener(OnLeftAndRightClickListener listener) {
this.listener = listener;
}
//按钮点击接口
public interface OnLeftAndRightClickListener {
void OnLeftButtonClick();
void OnRightButtonClick();
}
//设置左边按钮的可见性
public void setLeftButtonVisibility(boolean flag){
if (flag)
leftButton.setVisibility(View.VISIBLE);
else
leftButton.setVisibility(View.GONE);
}
//设置右边按钮的可见性
public void setRightButtonVisibility(boolean flag){
if (flag)
rightButton.setVisibility(View.VISIBLE);
else
rightButton.setVisibility(View.GONE);
}
public TopBar(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater.from(context).inflate(R.layout.laout_topbar, this);
leftButton = (Button) findViewById(R.id.leftButton);
rightButton = (Button) findViewById(R.id.rightButton);
titleTextView = (TextView) findViewById(R.id.titleText);
leftButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (listener != null) {
listener.OnLeftButtonClick();//点击回调
}
}
});
rightButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (listener != null) {
listener.OnRightButtonClick();//点击回调
}
}
});
//获得自定义属性并赋值
TypedArray typeArray = context.obtainStyledAttributes(attrs, R.styleable.TopBar);
int leftBtnBackground = typeArray.getResourceId(R.styleable.TopBar_leftBackground, 0);
int rightBtnBackground = typeArray.getResourceId(R.styleable.TopBar_rightBackground, 0);
String titleText = typeArray.getString(R.styleable.TopBar_titleText);
float titleTextSize = typeArray.getDimension(R.styleable.TopBar_titleTextSize, 18);
int titleTextColor = typeArray.getColor(R.styleable.TopBar_titleTextColor, 0x38ad5a);
//释放资源
typeArray.recycle();
leftButton.setBackgroundResource(leftBtnBackground);
rightButton.setBackgroundResource(rightBtnBackground);
titleTextView.setText(titleText);
titleTextView.setTextSize(titleTextSize);
titleTextView.setTextColor(titleTextColor);
}
}
3、调用自定义控件,在需要的activity或fragment的xml布局中调用
<com.example.ddf.TopBar
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/topbar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginBottom="20dp"
android:background="@drawable/biaotibeijing"
app:leftBackground="@layout/left_button_selector"
app:rightBackground="@layout/right_button_selector"
app:titleText="添加美食"
app:titleTextColor="#FFF"
app:titleTextSize="15dp" />
4.左、右按钮点击变色的设置,右边按钮一样,这里省略
right_button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/rightpress" android:state_pressed="true"/>
<item android:drawable="@drawable/rightnormal" />
</selector>
left_button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/backpress" android:state_pressed="true"/>
<item android:drawable="@drawable/backnormal" />
</selector>
5.最后在activity或fragment中去实现其功能。
代码如下:
TopBar topBar = (TopBar) findViewById(R.id.topbar);
topBar.setOnLeftAndRightClickListener(new TopBar.OnLeftAndRightClickListener() {
@Override
public void OnLeftButtonClick() {
finish();//左边按钮实现的功能逻辑
}
@Override
public void OnRightButtonClick() {
//右边按钮实现的功能逻辑
Toast.makeText(HomeActivity.this, "RightButton", Toast.LENGTH_SHORT).show();
}
});
6.设置弹窗设置利用popupwindow
popup_window.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@layout/pop_window_bg">
<ListView
android:id="@+id/lsvMore"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:divider="#a51919"
android:layout_weight="1"
android:dividerHeight="2dp"/>
</LinearLayout>
7.设置弹窗背景边框
popup_window_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<!-- dashWidth指的是边线的长度 dashGap 指的是每条线之间的间距 width指的是边线的宽度 -->
<stroke
android:width="2dp"
android:color="#a51919"
android:dashGap="2dp"
android:dashWidth="10dp" />
<corners
android:bottomLeftRadius="2dp"
android:bottomRightRadius="2dp"
android:topLeftRadius="2dp"
android:topRightRadius="2dp" />
</shape>
8.在avitvity中引用弹窗设置
AddActivity.java
public void initpopupwindow()
{
// TODO: 2016/5/17 设置该Activity使用的布局文件
btnPopup = (Button) findViewById(R.id.rightButton);// TODO: 2016/5/17 获取弹出按钮控件
// TODO: 2016/5/17 给按钮设置单击事件监听
btnPopup.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO: 2016/5/17 构建一个popupwindow的布局
View popupView = AddFoodActivity.this.getLayoutInflater().inflate(R.layout.popup_window, null);
// TODO: 2016/5/17 为了演示效果,简单的设置了一些数据,实际中大家自己设置数据即可,相信大家都会。
ListView lsvMore = (ListView) popupView.findViewById(R.id.lsvMore);
lsvMore.setAdapter(new ArrayAdapter<String>(AddFoodActivity.this, android.R.layout.simple_list_item_1, datas));
lsvMore.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?>arg0,View arg1,int arg2,long arg3)
{
switch(arg2)
{case 0:
Intent intent=new Intent(AddFoodActivity.this,MakeAudioActivity.class);
startActivity(intent);
break;
case 1:
Intent intent2=new Intent(AddFoodActivity.this,MakeVideoActivity.class);
startActivity(intent2);
break;
default:break;
}
}
});
// TODO: 2016/5/17 创建PopupWindow对象,指定宽度和高度
PopupWindow window = new PopupWindow(popupView, 150, 150);
// TODO: 2016/5/17 设置动画
window.setAnimationStyle(R.style.popup_window_anim);
// TODO: 2016/5/17 设置背景颜色
window.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#F8F8F8")));
// TODO: 2016/5/17 设置可以获取焦点
window.setFocusable(true);
// TODO: 2016/5/17 设置可以触摸弹出框以外的区域
window.setOutsideTouchable(true);
// TODO:更新popupwindow的状态
window.update();
// TODO: 2016/5/17 以下拉的方式显示,并且可以设置显示的位置
window.showAsDropDown(btnPopup, 0, 10);
}
});
}
参考网址:
自定义标题栏:https://www.jianshu.com/p/0763114e7738
弹窗:https://blog.youkuaiyun.com/csdnzouqi/article/details/51433633
最后在activity或fragment中去实现其功能。