前言
在app的开发中，每一个页面都有上面的标题栏，为了开发的方便，将该标题栏进行的封装，在实际的开发工作中，也可以将该封装好的标题栏控件直接拿来使用。
这里记录第一种方式：自定义控件
正文
标题栏无非就是返回按钮，标题，还有右侧的选项
- 返回按钮
- 返回按钮后面的文字（有时候不需要）
- 标题
- 右侧的图标或者文字
下面贴出的是布局文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#F34B4E"
android:gravity="center_vertical" >
<LinearLayout
android:id="@+id/llLeftGoBack"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:background="@drawable/widget_titlebar_selector"
android:clickable="true"
android:focusable="true"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingLeft="10dp"
android:paddingRight="15dp" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="5dp"
android:clickable="false"
android:drawableLeft="@drawable/myapptitle_back"
android:drawablePadding="5dp"
android:focusable="false"
android:gravity="center"
android:text="返回"
android:textColor="#FFFFFF"
android:textSize="16sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/llRight"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_alignParentRight="true"
android:background="@drawable/widget_titlebar_selector"
android:clickable="true"
android:focusable="true"
android:orientation="horizontal"
android:paddingLeft="15dp"
android:paddingRight="15dp" >
<ImageView
android:id="@+id/ivRightComplete"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:clickable="false"
android:focusable="false"
android:visibility="gone" />
<TextView
android:id="@+id/tvRightComplete"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:clickable="false"
android:focusable="false"
android:gravity="center"
android:text="完成"
android:textColor="#FFFFFF"
android:textSize="16sp"
android:visibility="visible" />
</LinearLayout>
<TextView
android:id="@+id/tvCenterTitle"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_toRightOf="@id/llLeftGoBack"
android:layout_toLeftOf="@id/llRight"
android:ellipsize="end"
android:gravity="center"
android:singleLine="true"
android:text="标题"
android:textColor="#FFFFFF"
android:textSize="18sp" />
</RelativeLayout>
下面是贴出来封装好的类
/**
* My app title
**/
public class MyAppTitle extends LinearLayout{
private OnLeftButtonClickListener mLeftButtonClickListener;
private OnRightButtonClickListener mRightButtonClickListener;
private MyViewHolder mViewHolder;
private View viewAppTitle;
public MyAppTitle(Context context) {
super(context);
init();
}
public MyAppTitle(Context context, AttributeSet attrs){
super(context, attrs);
init();
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public MyAppTitle(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
LayoutInflater inflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
viewAppTitle = inflater.inflate(R.layout.view_activity_titlebar, null);
this.addView(viewAppTitle, layoutParams);
mViewHolder = new MyViewHolder(this);
mViewHolder.llLeftGoBack.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v){
if (Utility.isFastDoubleClick()){
return;
}
if (mLeftButtonClickListener != null) {
mLeftButtonClickListener.onLeftButtonClick(v);
}
}
});
mViewHolder.llRight.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v){
if (Utility.isFastDoubleClick()){
return;
}
if (mRightButtonClickListener != null) {
mRightButtonClickListener.OnRightButtonClick(v);
}
}
});
}
public void initViewsVisible(boolean isLeftButtonVisile, boolean isCenterTitleVisile, boolean isRightIconVisile, boolean isRightTitleVisile){
// 左侧返回
mViewHolder.llLeftGoBack.setVisibility(isLeftButtonVisile ? View.VISIBLE : View.INVISIBLE);
// 中间标题
mViewHolder.tvCenterTitle.setVisibility(isCenterTitleVisile ? View.VISIBLE : View.INVISIBLE);
// 右侧返回图标,文字
if (!isRightIconVisile && !isRightTitleVisile) {
mViewHolder.llRight.setVisibility(View.INVISIBLE);
}
else {
mViewHolder.llRight.setVisibility(View.VISIBLE);
}
mViewHolder.ivRightComplete.setVisibility(isRightIconVisile ? View.VISIBLE : View.GONE);
mViewHolder.tvRightComplete.setVisibility(isRightTitleVisile ? View.VISIBLE : View.INVISIBLE);
}
/**
* 设置标题
*
* @param title
*/
public void setAppTitle(String title){
if (!TextUtils.isEmpty(title)) {
mViewHolder.tvCenterTitle.setText(title);
}
}
/**
* 设置标题栏文字颜色
* @return
*/
public TitleBar setAppTitleTextColor(int color){
mViewHolder.tvCenterTitle.setTextColor(color);
return this;
}
public void setRightTitle(String text){
if (!TextUtils.isEmpty(text)){
mViewHolder.tvRightComplete.setText(text);
}
}
public void setRightIcon(int sourceID){
mViewHolder.ivRightComplete.setImageResource(sourceID);
}
public void setLeftOnclick(OnLeftButtonClickListener mOnLeftButtonClickListener) {
if (mOnLeftButtonClickListener != null) {
}
}
public void setAppBackground(int color){
viewAppTitle.setBackgroundColor(color);
}
public void setOnLeftButtonClickListener(OnLeftButtonClickListener listen) {
mLeftButtonClickListener = listen;
}
public void setOnRightButtonClickListener(OnRightButtonClickListener listen) {
mRightButtonClickListener = listen;
}
public static abstract interface OnLeftButtonClickListener{
public abstract void onLeftButtonClick(View v);
}
public static abstract interface OnRightButtonClickListener{
public abstract void OnRightButtonClick(View v);
}
static class MyViewHolder{
LinearLayout llLeftGoBack;
TextView tvCenterTitle;
LinearLayout llRight;
ImageView ivRightComplete;
TextView tvRightComplete;
public MyViewHolder(View v){
llLeftGoBack = (LinearLayout) v.findViewById(R.id.llLeftGoBack);
tvCenterTitle = (TextView) v.findViewById(R.id.tvCenterTitle);
llRight = (LinearLayout) v.findViewById(R.id.llRight);
ivRightComplete = (ImageView) v.findViewById(R.id.ivRightComplete);
tvRightComplete = (TextView) v.findViewById(R.id.tvRightComplete);
}
}
}
接下来看在项目中 布局文件的引用
<包名.MyAppTitle
android:id="@+id/myNewAppTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</包名.MyAppTitle>
在activity中初始化该标题的代码
private void setMyAppTitle()
{
MyAppTitle mNewAppTitle = (MyAppTitle) this.findViewById(R.id.myNewAppTitle);
mNewAppTitle.initViewsVisible(true, true, false, true);
mNewAppTitle.setAppTitle(getString(R.string.title));
mNewAppTitle.setRightTitle(getString(R.string.subtitle));
mNewAppTitle.setOnLeftButtonClickListener(new OnLeftButtonClickListener() {
@Override
public void onLeftButtonClick(View v) {
onBackPressed();
}
});
mNewAppTitle.setOnRightButtonClickListener(new OnRightButtonClickListener(){
@Override
public void OnRightButtonClick(View v) {
//TODO
}
});
}
这次的内容就到这里了，
下篇文章将记录BaseActivity+toolbar的实现方式。
