只能包含一个子View，setOnRefreshListener设置下拉刷新监听html
问题：如下布局会出现下拉和列表滑动冲突问题java
<android.support.v4.widget.SwipeRefreshLayout android:id="@+id/sr_show" android:layout_width="match_parent" android:layout_height="match_parent"> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v7.widget.RecyclerView android:id="@+id/rv_show" android:background="@color/white" android:layout_width="match_parent" android:layout_height="match_parent"> </android.support.v7.widget.RecyclerView> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/white" android:orientation="vertical"> <ImageView android:id="@+id/iv_empty" android:layout_width="120dp" android:layout_height="175dp" android:layout_gravity="center_horizontal" android:contentDescription="@string/app_name" android:scaleType="centerCrop" android:layout_centerInParent="true" android:src="@drawable/img_empty" /> </RelativeLayout> </RelativeLayout> </android.support.v4.widget.SwipeRefreshLayout>
解决：react
rvShow.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
@Override
public void onScrollChanged() {
if(rvShow.getChildCount() > 0 && rvShow.getChildAt(0).getTop() == 0){
srShow.setEnabled(true);
}else{
srShow.setEnabled(false);
}
}
});
参考：android
https://stackoverflow.com/questions/26295481/android-swiperefreshlayout-how-to-implement-canchildscrollup-if-child-is-not-a-l/26296897#26296897 https://developer.android.com/samples/SwipeRefreshMultipleViews/src/com.example.android.swiperefreshmultipleviews/MultiSwipeRefreshLayout.html#l88app
依赖：compile 'com.android.support:design:22.2.0'ide
compile 'com.android.support:appcompat-v7:22.2.0'
使用TextInputLayout建立一个登录界面:布局
http://www.jcodecraeer.com/a/basictutorial/2015/0821/3338.htmlthis
AutoCompleteTextView 简单用法 :spa
http://blog.csdn.net/i_lovefish/article/details/17337999.net
位置：android-support-v4.jar
布局文件layout_drawer.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<!--主布局-->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/content_frame">
</FrameLayout>
</RelativeLayout>
<!--侧滑Drawer-->
<LinearLayout
android:id="@+id/menu_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="[@android](http://my.oschina.net/asia):color/white"
>
<ListView
android:id="@+id/list_drawer"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"/>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
java代码
DrawerLayout drawer_layout = (DrawerLayout) findViewById(R.id.drawer_layout);
LinearLayout menu_frame = (LinearLayout) findViewById(R.id.menu_frame);
ListView list_drawer = (ListView) findViewById(R.id.list_drawer);
//左侧Drawer设置内容
mPlanetTitles = new String[]{"菜单1","菜单2","菜单3"};
list_drawer.setAdapter(new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_expandable_list_item_1, mPlanetTitles));
list_drawer.setOnItemClickListener(new MyOnItemClickListener());
//主界面内容替换
MainFragment mainFragment = new MainFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.content_frame, mainFragment, "main");
fragmentTransaction.commit();
//监听左侧Drawer点击事件
toggle = new MyActionBarDrawerToggle(MainActivity.this,
drawer_layout, toolbar, R.string.drawer_open, R.string.drawer_close);
toggle.syncState(); //实现左上角图标状态切换
drawer_layout.setDrawerListener(toggle);
private class MyActionBarDrawerToggle extends ActionBarDrawerToggle {
public MyActionBarDrawerToggle(Activity activity, DrawerLayout drawerLayout, Toolbar toolbar,int openDrawerContentDescRes, int closeDrawerContentDescRes) {
super(activity, drawerLayout, toolbar, openDrawerContentDescRes, closeDrawerContentDescRes);
}
@Override
public void onDrawerClosed(View drawerView) {Log.d(TAG,"closed");}
@Override
public void onDrawerOpened(View drawerView) {Log.d(TAG, "Opened");}
@Override
public void onDrawerStateChanged(int newState) {Log.d(TAG, "StateChanged");}
}
位置： compile "com.android.support:appcompat-v7:23.2.1"
布局文件
一、主题文件中取消ActionBar
<!-- 使用 API Level 22 编译的话，要拿掉前綴android -->
<item name="android:windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
二、布局文件中设置
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:minHeight="?attr/actionBarSize"
android:elevation="10dp">
</android.support.v7.widget.Toolbar>
三、res/menu/menu_main.xml中设置菜单
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
>
<item
android:id="@+id/action_search"
android:title="搜尋"
android:icon="@android:drawable/ic_menu_search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="ifRoom" />
<item
android:id="@+id/action_refresh"
android:title="更新"
android:icon="@android:drawable/ic_menu_rotate"
app:showAsAction="withText|ifRoom" />
<item
android:id="@+id/action_settings"
android:title="设置"
app:showAsAction="never" />
</menu>
java代码
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
toolbar.setTitle("Toolbar标题");
setSupportActionBar(toolbar);
//此后获取Toolbar
ActionBar bar = getSupportActionBar();
bar.setDisplayHomeAsUpEnabled(true); //打开up button
//创建菜单
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
setSearch(menu);
return true;
}
//对选中的菜单进行操做
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(toggle.onOptionsItemSelected(item)) {
Log.d(TAG, "logo==========");
return true;
}
switch (item.getItemId()) {
case android.R.id.home:
Log.d(TAG, "0000000");
MainActivity.this.finish();
break;
case R.id.action_refresh:
Toast.makeText(this, "Refresh", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_search:
Toast.makeText(this, "search", Toast.LENGTH_SHORT).show();
return true;
default:
}
return false;
}
//为ActionBar实现查询功能
private void setSearch(Menu menu) {
final MenuItem item = menu.findItem(R.id.action_search);
SearchView sv = (SearchView) MenuItemCompat.getActionView(item);
if(sv != null){
sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String arg0) {
Toast.makeText(MainActivity.this, arg0, Toast.LENGTH_SHORT).show();
MenuItemCompat.collapseActionView(item);
return true;
}
@Override
public boolean onQueryTextChange(String arg0) {
return false;
}
});
}
}
自定义toolbar内容布局
Toolbar toolbar = (Toolbar) findViewById(R.id.sc_sub_toolbar);
if (toolbar != null) {
toolbar.setTitle("");
}
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
LayoutInflater mInflater = LayoutInflater.from(actionBar.getThemedContext());
View mCustomView = mInflater.inflate(R.layout.sc_title_bar, null);
ActionBar.LayoutParams params = new ActionBar.LayoutParams(
ActionBar.LayoutParams.MATCH_PARENT,
ActionBar.LayoutParams.MATCH_PARENT);
actionBar.setCustomView(mCustomView, params); // 全局
actionBar.setDisplayShowCustomEnabled(true); // 显示自定义视图
}
默认toolbar左边会有padding，能够设置contentInsetStart去掉
<android.support.v7.widget.Toolbar android:id="@+id/sc_sub_toolbar" android:layout_width="match_parent" android:layout_height="@dimen/main_toolbar_height" app:contentInsetStart="0dp" > </android.support.v7.widget.Toolbar>
参见：http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/1118/2006.html
用于能够折叠的Toolbar，继承至FrameLayout。
设置：
一、CoordinatorLayout做为主布局容器(位置compile 'com.android.support:design:22.2.1')
二、将AppBarLayout布局中的控件用CollapsingToolbarLayout包裹
三、设置CollapsingToolbarLayout布局属性：app:layout_scrollFlags="scroll|exitUntilCollapsed" 它能够控制包含在CollapsingToolbarLayout中的控件(如：ImageView、Toolbar)在响应layout_behavior事件时做出相应的scrollFlags滚动事件(移除屏幕或固定在屏幕顶端)。
四、将要滚动的的view设置属性app:layout_collapseMode="parallax"
五、设置Toolbar的属性，app:layout_collapseMode="pin"和android:layout_height="?attr/actionBarSize"
六、在触发（滚动）事件的view之上设置app:layout_behavior="@string/appbar_scrolling_view_behavior"
参见：
Android CollapsingToolbarLayout使用介绍
CoordinatorLayout、AppBarLayout、CollapsingToolbarLayout之间的关系详解
CollapsingToolbarLayout效果实现原理讲解
关于CoordinatorLayout与Behavior的一点分析: http://www.jianshu.com/p/a506ee4afecb#
Android CoordinatorLayout之自定义Behavior
Android CoordinatorLayout与Behavior使用指南
CoordinatorLayout 自定义Behavior并不难
位置：compile "com.android.support:design:23.2.1"
布局文件
<android.support.design.widget.TabLayout
android:id="@+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:tabIndicatorColor="@color/colorAccent"
app:tabSelectedTextColor="@android:color/darker_gray"
app:tabTextColor="@android:color/white"
>
</android.support.design.widget.TabLayout>
java代码
TabLayout tabLayout = (TabLayout) this.findViewById(R.id.tabLayout);
tabLayout.addTab(tabLayout.newTab().setText("Tab 1").setIcon(R.drawable.ic_home1));
tabLayout.addTab(tabLayout.newTab().setText("Tab 2").setIcon(R.drawable.ic_home2));
tabLayout.addTab(tabLayout.newTab().setText("Tab 3").setIcon(R.drawable.ic_home3));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
// 改变选中tab图片颜色
final int tabIconColorSelect = ContextCompat.getColor(MainActivity.this, R.color.green);
final int tabIconColor = ContextCompat.getColor(MainActivity.this, R.color.black);
tabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
tab.getIcon().setColorFilter(tabIconColorSelect, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabUnselected(TabLayout.Tab tab) {
tab.getIcon().setColorFilter(tabIconColor, PorterDuff.Mode.SRC_IN);
}
@Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
它的做用是把AppBarLayout包裹的内容做为一个总体，组成AppBar
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher"
app:layout_anchor="@id/drawer_layout"
app:layout_anchorGravity="bottom|end"
android:layout_margin="16dp"
app:backgroundTint="#FF87FFEB"
app:rippleColor="#33728DFF"
app:elevation="5dp"
app:pressedTranslationZ="12dp"
app:layout_behavior="com.egrid.materialdemo.ScrollAwareFABBehavior"
/>
public class ScrollAwareFABBehavior extends FloatingActionButton.Behavior {
private static final Interpolator INTERPOLATOR = new FastOutSlowInInterpolator();
private boolean mIsAnimatingOut = false;
public ScrollAwareFABBehavior(Context context, AttributeSet attrs) {
super();
}
@Override
public boolean onStartNestedScroll(final CoordinatorLayout coordinatorLayout, final FloatingActionButton child,
final View directTargetChild, final View target, final int nestedScrollAxes) {
// Ensure we react to vertical scrolling
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL
|| super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
}
@Override
public void onNestedScroll(final CoordinatorLayout coordinatorLayout, final FloatingActionButton child,
final View target, final int dxConsumed, final int dyConsumed,
final int dxUnconsumed, final int dyUnconsumed) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed);
if (dyConsumed > 0 && !this.mIsAnimatingOut && child.getVisibility() == View.VISIBLE) {
// User scrolled down and the FAB is currently visible -> hide the FAB
// animateOut(child);
child.hide();
} else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) {
// User scrolled up and the FAB is currently not visible -> show the FAB
// animateIn(child);
child.show();
}
}
}
参见：http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2015/0718/3197.html
http://blog.csdn.net/lmj623565791/article/details/45059587
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar snackbar = Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", new View.OnClickListener() {
@Override
public void onClick(View v) {
Snackbar.make(v, "ActionClick", Snackbar.LENGTH_LONG)
.setActionTextColor(MainActivity.this.getResources().getColor(R.color.colorTest)).show();
}
}).setActionTextColor(ContextCompat.getColor(MainActivity.this, R.color.colorTest));
//设置文本颜色(snackbar_text是文本id，snackbar_action是Action的id，都是TextView控件)
View view1 = snackbar.getView();
((TextView)view1.findViewById(R.id.snackbar_text)).setTextColor(Color.parseColor("#FF00FF"));
snackbar.show();
}
});