Design各控件的搭配使用3

时间:2022-08-30 01:20:43


在上一个版本基础上新增:


对RecyclerView的操作(线性,网格,瀑布流)


QuickReturnBehavior控制底部Footer的显示



Design各控件的搭配使用3


<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawerLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity" >

    <android.support.design.widget.CoordinatorLayout
        android:id="@+id/coordinatorLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true" >

        <!-- 第一部分:伸缩工具栏 -->
        <!-- AppBarLayout目前必须是第一个嵌套在CoordinatorLayout里面的子view -->
        <!-- AppBarLayout里面定义的view只要设置了app:layout_scrollFlags属性,就可以在RecyclerView滚动事件发生的时候被触发: -->
        <!-- app:layout_scrollFlags属性里面必须至少启用scroll这个flag,这样这个view才会滚动出屏幕,否则它将一直固定在顶部。 -->
        <!--
	可以使用的其他flag有:
		enterAlways: 一旦向上滚动这个view就可见。
		enterAlwaysCollapsed: 顾名思义,这个flag定义的是何时进入(已经消失之后何时再次显示)。假设你定义了一个最小高度(minHeight)同时enterAlways也定义了,那么view将在到达这个最小高度的时候开始显示,并且从这个时候开始慢慢展开,当滚动到顶部的时候展开完。
		exitUntilCollapsed: 同样顾名思义,这个flag时定义何时退出,当你定义了一个minHeight,这个view将在滚动到达这个最小高度的时候消失。
        -->
        <!-- 记住,要把带有scroll flag的view放在前面,这样收回的view才能让正常退出,而固定的view继续留在顶部。 -->

        <android.support.design.widget.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="240dp"
            android:fitsSystemWindows="true"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >

            <!-- 如果想制造toolbar的折叠效果,我们必须把Toolbar放在CollapsingToolbarLayout中: -->
            <!-- 通常,我们我们都是设置Toolbar的title,而现在,我们需要把title设置在CollapsingToolBarLayout上,而不是Toolbar。 -->
            <!-- 给需要有折叠效果的组件设置 layout_collapseMode属性 -->
            <!-- Toolbar 的高度layout_height必须固定,不能 “wrap_content”,否则Toolbar不会滑动,也没有折叠效果 -->

            <android.support.design.widget.CollapsingToolbarLayout
                android:id="@+id/collapsing_toolbar"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                app:layout_scrollFlags="scroll|exitUntilCollapsed"
                android:fitsSystemWindows="true"
                app:contentScrim="?attr/colorPrimary"
                app:expandedTitleMarginEnd="64dp"
                app:expandedTitleMarginStart="48dp" >

                <!-- 制造视差效果 -->
                <!-- CollapsingToolbarLayout还能让我们做出更高级的动画,比如在里面放一个ImageView,然后在它折叠的时候渐渐淡出。同时在用户滚动的时候title的高度也会随着改变。 -->
                <!-- 为了制造出这种效果,我们添加一个定义了app:layout_collapseMode="parallax" 属性的ImageView。 -->

                <ImageView
                    android:id="@+id/backdrop"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    app:layout_collapseMode="parallax"
                    app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
                    android:fitsSystemWindows="true"
                    android:scaleType="centerCrop"
                    android:src="@drawable/bg_login" />

                <android.support.v7.widget.Toolbar
                    android:id="@+id/toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="?attr/actionBarSize"
                    app:layout_collapseMode="pin"
                    app:layout_scrollFlags="scroll|enterAlways"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Dark"
                    app:titleTextAppearance="@style/TextAppearance.AppCompat.Headline" />
                
            </android.support.design.widget.CollapsingToolbarLayout>
        </android.support.design.widget.AppBarLayout>

		<android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
		
        <!-- 响应QuickReturnFooterBehavior,偶尔会报java.lang.*Error 故注释掉  -->
		<TextView  
		    android:id="@+id/footerView"  
	        android:layout_width="match_parent"  
	        android:layout_height="wrap_content"  
	        android:layout_gravity="bottom"  
	        app:layout_behavior="com.mb.widget.QuickReturnBehavior"  
	        android:background="@color/quickreturn_background"  
	        android:gravity="center"  
	        android:padding="16dp"  
	        android:text="QuickReturn Footer"  
	        android:textAppearance="@style/TextAppearance.AppCompat.Headline"  
	        android:textColor="@android:color/white" />  
         
        <!-- FloatingActionButton继承自ImageView;backgroundTint背景颜色,默认的背景颜色是Theme主题中的; elevation阴影的深度 -->
        <!-- 目前使用的behavior是QuickReturnFooterBehavior,还可以试试 ScrollAwareFABBehavior-->
        <android.support.design.widget.FloatingActionButton
            android:id="@+id/floatingActionButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="16dp"
            app:layout_anchor="@id/recyclerView"
            app:layout_anchorGravity="bottom|right|end"
            app:layout_behavior="com.mb.widget.ScrollAwareFABBehavior" 
            android:src="@drawable/ic_plus"
            app:backgroundTint="#FF9900"
            app:elevation="16dp"
            app:fabSize="normal" /> 

        <!-- 为了能让FloatingActionButton也能折叠且消失出现,我们必须给FAB设置锚点属性app:layout_anchor="@id/appbar" -->
		<!-- 此处可以不设置Behavior,默认就是com.mb.widget.ScrollAwareFABBehavior -->
        <android.support.design.widget.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_anchor="@id/appbar"
            app:layout_anchorGravity="bottom|right|end"
            android:src="@drawable/ic_search"
            app:backgroundTint="#CCCC00"
            app:fabSize="normal" />
        
    </android.support.design.widget.CoordinatorLayout>

    <android.support.design.widget.NavigationView
        	android:id="@+id/navigationView"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_gravity="start"
            app:headerLayout="@layout/drawer_header"
            app:menu="@menu/drawer">
        
        </android.support.design.widget.NavigationView>
    
</android.support.v4.widget.DrawerLayout>





package com.example.test;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import com.mb.widget.Cheeses;
import com.mb.widget.SimpleStringRecyclerViewAdapter;

import android.content.Context;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.NavigationView.OnNavigationItemSelectedListener;
import android.support.design.widget.Snackbar;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

/**
 * http://www.open-open.com/lib/view/open1437312265428.html
 * @author pythoner
 *
 */
public class MainActivity extends AppCompatActivity {

	private Context context;
	private ActionBarDrawerToggle drawerToggle;
	private RecyclerView recyclerView;
	private SimpleStringRecyclerViewAdapter adapter;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		context=this;
		
		Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
		//使用了ActionBarDrawerToggle之后,下面的设置可以不用
		// App Logo
//        toolbar.setLogo(R.drawable.ic_launcher);
        // Title
//        toolbar.setTitle("App Title");
        // Sub Title
//        toolbar.setSubtitle("Sub title");
        //Navigation Icon
//        toolbar.setNavigationIcon(R.drawable.ic_launcher);
        
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        
        final DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open,  R.string.drawer_close);  
        drawerToggle.syncState();  
        drawerLayout.setDrawerListener(drawerToggle);
        
        final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
        navigationView.setNavigationItemSelectedListener(new OnNavigationItemSelectedListener() {
			
			@Override
			public boolean onNavigationItemSelected(MenuItem item) {
				// TODO Auto-generated method stub
				Toast.makeText(context,  item.getTitle(), Toast.LENGTH_SHORT).show();
				return false;
			}
		});
        
        final CoordinatorLayout coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinatorLayout);
        //通常,我们我们都是设置Toolbar的title,而现在,我们需要把title设置在CollapsingToolBarLayout上,而不是Toolbar。
        CollapsingToolbarLayout collapsingToolbar = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
        collapsingToolbar.setTitle("Title");
        
        FloatingActionButton floatingActionButton = (FloatingActionButton) findViewById(R.id.floatingActionButton);
        floatingActionButton.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub

				final Snackbar snackbar = Snackbar.make(coordinatorLayout, "测试弹出提示", Snackbar.LENGTH_LONG);
				snackbar.show();
				snackbar.setAction("取消", new View.OnClickListener() {
					@Override
					public void onClick(View v) {
						snackbar.dismiss();
					}
				});

			}
		});
        
		recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
//		recyclerView.addItemDecoration(new DividerGridItemDecoration(this));
        recyclerView.setItemAnimator(new DefaultItemAnimator());//动画effect
        LinearLayoutManager manager = new LinearLayoutManager(this);
        manager.setOrientation(LinearLayoutManager.VERTICAL);
        recyclerView.setLayoutManager(manager);
        
        List<String> cheeseStrings=Arrays.asList(Cheeses.sCheeseStrings);
        List<String> list=new ArrayList<String>(cheeseStrings);
        adapter=new SimpleStringRecyclerViewAdapter(this,list);
        recyclerView.setAdapter(adapter);
        
        
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()){
        case R.id.action_add:
            adapter.addItemAt(1);
            break;
        case R.id.action_remove:
        	adapter.removeItemAt(1);
            break;
        case R.id.action_0:
        	LinearLayoutManager manager0 = new LinearLayoutManager(this);
	        manager0.setOrientation(LinearLayoutManager.HORIZONTAL);
	        recyclerView.setLayoutManager(manager0);
        	break;
        case R.id.action_1:
        	LinearLayoutManager manager1 = new LinearLayoutManager(this);
        	manager1.setOrientation(LinearLayoutManager.VERTICAL);
        	recyclerView.setLayoutManager(manager1);
        	break;
        case R.id.action_2:
        	GridLayoutManager manager2 = new GridLayoutManager(this,4);
        	recyclerView.setLayoutManager(manager2);
        	break;
        case R.id.action_3:
        	GridLayoutManager manager3 = new GridLayoutManager(this,3);
        	manager3.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
        		@Override
        		public int getSpanSize(int position) {
        			return (3 - position % 3);
        		}
        	});
        	recyclerView.setLayoutManager(manager3);
        	break;
        case R.id.action_4:
        	StaggeredGridLayoutManager manager4 = new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);
        	recyclerView.setLayoutManager(manager4);
        	break;
        case R.id.action_5:
        	StaggeredGridLayoutManager manager5 = new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.HORIZONTAL);
        	recyclerView.setLayoutManager(manager5);
        	break;
        }
		return super.onOptionsItemSelected(item);
	}
	
	/** 设备配置改变时 */    
    @Override    
    public void onConfigurationChanged(Configuration newConfig) {    
        super.onConfigurationChanged(newConfig);    
        drawerToggle.onConfigurationChanged(newConfig);    
    }    
    
}




package com.mb.widget;

import android.animation.Animator;
import android.content.Context;
import android.support.design.widget.CoordinatorLayout;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewPropertyAnimator;
import android.view.animation.Interpolator;

/**
 * CoodinatorLayout给我们实现了一个可以被子view代理实现方法的一个布局。这和传统的ViewGroup不同,子view从此知道了彼此之间的存在,
 * 一个子view的变化可以通知到另一个子view。CoordinatorLayout所做的事情就是当成一个通信的桥梁,连接不同的view。
 * 使用Behavior对象进行通信。
 * @author pythoner
 *
 */
public class QuickReturnBehavior extends CoordinatorLayout.Behavior<View>{

	private static final Interpolator INTERPOLATOR = new FastOutSlowInInterpolator();
	private final Context context;
	private int mYDirectionChange;//Y轴滑动方向变化
	
	public QuickReturnBehavior(Context context, AttributeSet attrs) {
		super();
		this.context=context;
	}
	
	//这个方法告诉CoordinatorLayout,这个view是依赖AppBarLayout的,后续父亲可以利用这个方法,查找到这个child所有依赖的兄弟结点。
	@Override
	public boolean layoutDependsOn(CoordinatorLayout parent, View child, View dependency) {
		// TODO Auto-generated method stub
		return super.layoutDependsOn(parent, child, dependency);
	}

	//这个方法,可以在这个回调中记录dependency的一些位置信息,在onLayoutChild中利用保存下来的信息进行计算,然后得到自身的具体位置。
	@Override
	public boolean onDependentViewChanged(CoordinatorLayout parent, View child, View dependency) {
		// TODO Auto-generated method stub
		return super.onDependentViewChanged(parent, child, dependency);
	}

	@Override
	public void onDependentViewRemoved(CoordinatorLayout parent, View child, View dependency) {
		// TODO Auto-generated method stub
		super.onDependentViewRemoved(parent, child, dependency);
	}

	//这个方法是用来子view用来布局自身使用,如果依赖其他view,那么系统会首先调用
	@Override
	public boolean onLayoutChild(CoordinatorLayout parent, View child, int layoutDirection) {
		// TODO Auto-generated method stub
		return super.onLayoutChild(parent, child, layoutDirection);
	}

	//这个是CoordinatorLayout在进行measure的过程中,利用Behavior对象对子view进行大小测量的一个方法。
	//在这个方法内,我们可以通过parent.getDependencies(child);
	//这个方法,获取到这个child依赖的view,然后通过获取这个child依赖的view的大小来决定自身的大小。
	@Override
	public boolean onMeasureChild(CoordinatorLayout parent, View child, int parentWidthMeasureSpec, int widthUsed,
			int parentHeightMeasureSpec, int heightUsed) {
		// TODO Auto-generated method stub
		return super.onMeasureChild(parent, child, parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
	}

	//以下四个方法刚好是NestedScrollingParent的方法,也就是对CoodinatorLayout进行的一个代理(Proxy),
	//即CoordinatorLayout自己不对这些消息进行处理,而是传递给子view的Behavior,进行处理。
	//利用这样的方法,实现了view和view之间的交互和视觉的协同(布局、滑动)。
	@Override
	public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, View child, View target, int dx, int dy,
			int[] consumed) {
		// TODO Auto-generated method stub
		super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed);
		if (dy > 0 && mYDirectionChange < 0|| dy < 0 && mYDirectionChange > 0) {
            // We detected a direction change- cancel existing animations and reset our cumulative delta Y
            child.animate().cancel();
            mYDirectionChange = 0;
        }
		
		mYDirectionChange += dy;
		if (mYDirectionChange > 0 && child.getVisibility() == View.VISIBLE) {
            hide(child);
        } else if (mYDirectionChange < 0 && child.getVisibility() == View.GONE) {
            show(child);
        }
	}

	@Override
	public void onNestedScroll(CoordinatorLayout coordinatorLayout, View child, View target, int dxConsumed,
			int dyConsumed, int dxUnconsumed, int dyUnconsumed) {
		// TODO Auto-generated method stub
		super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed);
		
	}

	@Override
	public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout, View child, View directTargetChild,
			View target, int nestedScrollAxes) {
		// TODO Auto-generated method stub
//		Log.i("tag", "nestedScrollAxes===="+nestedScrollAxes);//2
		return (nestedScrollAxes & ViewCompat.SCROLL_AXIS_VERTICAL) != 0;
	}

	@Override
	public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, View child, View target) {
		// TODO Auto-generated method stub
		super.onStopNestedScroll(coordinatorLayout, child, target);
	}

	//源码中hide里调用show,show里调用hide,有可能会造成死锁,偶尔会报堆栈溢出异常!故注释掉了源码
	//目前我在hide的onAnimationStart中添加了view.setVisibility(View.VISIBLE),运行没有问题
    private void hide(final View view) {
        ViewPropertyAnimator animator = view.animate()
                .translationY(view.getHeight())
                .setInterpolator(INTERPOLATOR)
                .setDuration(400);

        animator.setListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {
            	view.setVisibility(View.VISIBLE);//by pythoner added
            }

            @Override
            public void onAnimationEnd(Animator animator) {
                // Prevent drawing the View after it is gone
                view.setVisibility(View.GONE);
            }

            @Override
            public void onAnimationCancel(Animator animator) {
                // Canceling a hide should show the view
//                show(view);//by pythoner removed
            }

            @Override
            public void onAnimationRepeat(Animator animator) {}
        });

        animator.start();
    }

    private void show(final View view) {
        ViewPropertyAnimator animator = view.animate()
                .translationY(0)
                .setInterpolator(INTERPOLATOR)
                .setDuration(400);

        animator.setListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {
                view.setVisibility(View.VISIBLE);
            }

            @Override
            public void onAnimationEnd(Animator animator) {
            	
            }

            @Override
            public void onAnimationCancel(Animator animator) {
                // Canceling a show should hide the view
//                hide(view);//by pythoner removed
            }

            @Override
            public void onAnimationRepeat(Animator animator) {}
        });

        animator.start();
    }
    
	
}


  • Test.rar (4.4 MB)
  • 描述: android5.1.1编译,需要v7-appcompat,design等扩展包
  • 下载次数: 4
  • Design各控件的搭配使用3

  • 大小: 534.9 KB
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