Friday, 1 January 2016

ANDROID MATERIAL DESIGN (Bottom sheets) - 5

A bottom sheet is a sheet of material that slides up from the bottom edge of the screen. Bottom sheets are displayed only as a result of a user-initiated action, and can be swiped up to reveal additional content. A bottom sheet can be a temporary modal surface or a persistent structural element of an app.

 

There are two major types of bottom sheets:
  • Modal bottom sheets are alternatives to menus or simple dialogs. They can also present deep-linked content from other apps. They are primarily for mobile.
  • Persistent bottom sheets present in-app content.
Elevation distinguishes modal from persistent bottom sheets. Modal bottom sheets rest at a higher elevation than the app’s content; whereas persistent bottom sheets rest at the same elevation as the app and integrate with its content.

but currently design support library not contain source of bottom sheet, there is some library available on github. first one is 's android-material-bottom-sheet and second one is bottomsheet.

you can also customize bottom sheet. lets try! here is simple way to create bottom sheet.



create layout file

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/popup_window"
    android:layout_width="match_parent"
    android:layout_height="@dimen/bottom_sheet_height"
    android:layout_gravity="bottom|center"
    android:background="@android:color/white"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize"
        android:background="@color/colorPrimary"
        android:orientation="horizontal"
        android:paddingLeft="10dip"
        android:paddingRight="10dip"
        android:weightSum="3">

        <LinearLayout
            android:layout_width="0dip"
            android:layout_height="match_parent"
            android:layout_weight="2"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/txt_uninstall"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center_vertical"
                android:text="@string/app_name"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:textColor="@color/white"
                android:textSize="@dimen/font_normal_size" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="0dip"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center|right"
            android:orientation="horizontal">

            <Button
                android:id="@+id/btnDone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Done" />
        </LinearLayout>


    </LinearLayout>

    <TextView
        android:id="@+id/textView13"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:text="Select Zone:"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="@color/colorAccent"
        android:textSize="@dimen/font_normal_size_small"
        android:textStyle="bold" />

    <Spinner
        android:id="@+id/spin1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dip"
        android:layout_marginTop="5dip" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dip"
        android:background="@color/gray" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:text="Select Region:"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="@color/colorAccent"
        android:textSize="@dimen/font_normal_size_small"
        android:textStyle="bold" />

    <Spinner
        android:id="@+id/spin2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dip"
        android:layout_marginTop="5dip" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dip"
        android:background="@color/gray" />

    <ListView
        android:id="@+id/listItems"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dip"
        android:layout_marginTop="5dip"
        android:choiceMode="singleChoice"
        android:divider="@null"
        android:dividerHeight="0dp" />

</LinearLayout>

in your activity create method

public void openBottomSheet() {

    View view = getLayoutInflater().inflate(R.layout.bottom_sheet_emp_cov, null);
    Spinner spin1 = (Spinner) view.findViewById(R.id.spin1);
    Spinner spin2 = (Spinner) view.findViewById(R.id.spin2);
    ListView catList = (ListView) view.findViewById(R.id.listItems);
    Button btnDone = (Button) view.findViewById(R.id.btnDone);

    final Dialog mBottomSheetDialog = new Dialog(RepActivity.this,
            R.style.MaterialDialogSheet);
    mBottomSheetDialog.setContentView(view);
    mBottomSheetDialog.setCancelable(true);
    mBottomSheetDialog.getWindow().setLayout(LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.WRAP_CONTENT);
    mBottomSheetDialog.getWindow().setGravity(Gravity.BOTTOM);
    mBottomSheetDialog.show();

    spin1.setAdapter(new ArrayAdapter<String>(RepActivity.this, android.R.layout.simple_dropdown_item_1line, items));
    spin2.setAdapter(new ArrayAdapter<String>(RepActivity.this, android.R.layout.simple_dropdown_item_1line, items));

    catList.setAdapter(categoryListAdapter);

    btnDone.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mBottomSheetDialog.dismiss();
        }
    });

}
 
MaterialDialogSheet style

<style name="MaterialDialogSheet" parent="@android:style/Theme.Dialog">
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:windowIsFloating">false</item>
        <item name="android:windowAnimationStyle">@style/MaterialDialogSheetAnimation</item>
    </style>

    <style name="MaterialDialogSheetAnimation">
        <item name="android:windowEnterAnimation">@anim/popup_show</item>
        <item name="android:windowExitAnimation">@anim/popup_hide</item>
    </style>

popup_show animation

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="100%p"
        android:toYDelta="0"
        android:duration="300"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"/>
</set>

popup_hide animation

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="0"
        android:toYDelta="100%p"
        android:duration="300"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"/>
</set>


Thursday, 4 June 2015

Android Material Design (with Design support Library) - 4




Introducing Design Support Library , to use Material design component in older version API - android 2.1 and above. You’ll find a navigation drawer view, floating labels for editing text, a floating action button, snackbar, tabs, and a motion and scroll framework to tie them together.

I have used my previous example, so its easy for demonstrate. 

Note:

  • Update your Android SDK support repositories, support library if not updated
  • used compileSdkVersion 'android-MNC' for Android M but you can change it to build in older API
add dependencies in build.gradle file
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.android.support:design:22.2.0'
compile 'com.android.support:support-v4:22.2.0'

start with navigation drawer, its very easy to use

lets, design for drawer

 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   xmlns:app="http://schemas.android.com/apk/res-auto"  
   android:id="@+id/drawer_layout"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   android:fitsSystemWindows="true">  
   <!-- your content layout -->  
   <!--<FrameLayout  
     android:id="@+id/container"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent" />-->  
   <include layout="@layout/about_fragment"></include>  
   <android.support.design.widget.NavigationView  
     android:id="@+id/nav_draw"  
     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.v4.widget.DrawerLayout>  

drawer menus will be a collection of checkable menu items


 <?xml version="1.0" encoding="utf-8"?>  
 <menu xmlns:android="http://schemas.android.com/apk/res/android">  
   <group android:checkableBehavior="single">  
     <item  
       android:id="@+id/navigation_item_1"  
       android:checked="true"  
       android:icon="@drawable/ic_drawer_map"  
       android:title="@string/title_section1">  
     </item>  
     <item  
       android:id="@+id/navigation_item_2"  
       android:icon="@drawable/ic_drawer_people_met"  
       android:title="@string/title_section2" />  
     <item  
       android:id="@+id/navigation_item_3"  
       android:icon="@drawable/ic_drawer_experts"  
       android:title="@string/title_section3" />  
     <item  
       android:id="@+id/navigation_item_4"  
       android:icon="@drawable/ic_drawer_explore"  
       android:title="@string/title_section4" />  
     <item  
       android:id="@+id/navigation_item_5"  
       android:icon="@drawable/ic_drawer_social"  
       android:title="@string/title_section5" />  
     <item  
       android:id="@+id/navigation_item_6"  
       android:icon="@drawable/ic_drawer_social"  
       android:title="@string/title_section6" />  
     <item  
       android:id="@+id/navigation_subheader"  
       android:title="@string/navigation_subheader">  
       <menu>  
         <item  
           android:id="@+id/navigation_sub_item_1"  
           android:title="@string/navigation_sub_item_1" />  
         <item  
           android:id="@+id/navigation_sub_item_2"  
           android:title="@string/navigation_sub_item_2" />  
       </menu>  
     </item>  
   </group>  
 </menu>  

use navigation item Listener


 public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener  

add override method


 @Override  
   public boolean onNavigationItemSelected(MenuItem menuItem) {  
     return false;  
   }  

in onCreate,


 NavigationView nav_draw = (NavigationView) findViewById(R.id.nav_draw);  
 nav_draw.setNavigationItemSelectedListener(this);  

Add Action, on Navigation Item select change onNavigationItemSelected method,


 @Override  
   public boolean onNavigationItemSelected(MenuItem menuItem) {  
     if (menuItem.getItemId() == R.id.navigation_item_1) {  
       Snackbar  
           .make(fab, "First item Selected", Snackbar.LENGTH_LONG)  
               //.setAction(R.string.snackbar_action, myOnClickListener)  
           .show();  
     } else if (menuItem.getItemId() == R.id.navigation_item_2) {  
       //startActivity(new Intent(MainActivity.this, DetailActivity.class));  
       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {  
         getWindow().setExitTransition(new Explode());  
         Intent intent = new Intent(this, DetailActivity.class);  
         startActivity(intent,  
             ActivityOptionsCompat  
                 .makeSceneTransitionAnimation(this).toBundle());  
       } else {  
         startActivity(new Intent(MainActivity.this, DetailActivity.class));  
       }  
     } else if (menuItem.getItemId() == R.id.navigation_item_3) {  
       String url = "http://www.dj-android.blogspot.com";  
       Intent i = new Intent(Intent.ACTION_VIEW);  
       i.setData(Uri.parse(url));  
       startActivity(i);  
     } else if (menuItem.getItemId() == R.id.navigation_item_4) {  
       /*Snackbar  
           .make(root, "", Snackbar.LENGTH_LONG)  
               //.setAction(R.string.snackbar_action, myOnClickListener)  
           .setActionTextColor(getResources().getColor(R.color.colorRed))  
           .show();*/  
     }  
     menuItem.setChecked(true);  
     drawer_layout.closeDrawers();  
     return false;  
   }  

all this about navigation drawer view, no need to add extra fragment for drawer,

Floating Action Button



The Design library’s FloatingActionButton gives you a single consistent implementation, by default colored using the colorAccent from your theme.

 <android.support.design.widget.FloatingActionButton  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:layout_margin="16dp"  
     android:clickable="true"  
     android:id="@+id/fab_action"  
     android:src="@drawable/ic_discuss"  
     app:layout_anchor="@id/appbar"  
     app:layout_anchorGravity="bottom|right|end" />  


Collapsing Toolbars




Adding a Toolbar directly to an AppBarLayout gives you access to the enterAlwaysCollapsed and exitUntilCollapsed scroll flags, but not the detailed control on how different elements react to collapsing. For that, you can use CollapsingToolbarLayout.


 <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   xmlns:app="http://schemas.android.com/apk/res-auto"  
   android:id="@+id/main_content"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   android:fitsSystemWindows="true">  
   <android.support.design.widget.AppBarLayout  
     android:id="@+id/appbar"  
     android:layout_width="match_parent"  
     android:layout_height="200dip"  
     android:fitsSystemWindows="true"  
     android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">  
     <android.support.design.widget.CollapsingToolbarLayout  
       android:id="@+id/collapsing_toolbar"  
       android:layout_width="match_parent"  
       android:layout_height="match_parent"  
       android:fitsSystemWindows="true"  
       app:contentScrim="?attr/colorPrimary"  
       app:expandedTitleMarginEnd="64dp"  
       app:expandedTitleMarginStart="48dp"  
       app:layout_scrollFlags="scroll|exitUntilCollapsed">  
       <ImageView  
         android:id="@+id/backdrop"  
         android:layout_width="match_parent"  
         android:layout_height="match_parent"  
         android:fitsSystemWindows="true"  
         android:scaleType="centerCrop"  
         android:src="@drawable/my_pic"  
         app:layout_collapseMode="parallax" />  
       <android.support.v7.widget.Toolbar  
         android:id="@+id/toolbar"  
         android:layout_width="match_parent"  
         android:layout_height="?attr/actionBarSize"  
         app:layout_collapseMode="pin"  
         app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />  
     </android.support.design.widget.CollapsingToolbarLayout>  
   </android.support.design.widget.AppBarLayout>  
   <android.support.v4.widget.NestedScrollView  
     android:layout_width="match_parent"  
     android:layout_height="match_parent"  
     android:padding="10dip"  
     app:layout_behavior="@string/appbar_scrolling_view_behavior">  
     <TextView  
       android:id="@+id/textView"  
       android:padding="10dip"  
       android:layout_width="wrap_content"  
       android:layout_height="wrap_content"  
       android:elevation="5dp"  
       android:textColor="@color/textColorPrimary"  
       android:background="@drawable/myrect"  
       android:text="@string/intro"  
       android:textAppearance="?android:attr/textAppearanceMedium" />  
   </android.support.v4.widget.NestedScrollView>  
   <android.support.design.widget.FloatingActionButton  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:layout_margin="16dp"  
     android:clickable="true"  
     android:id="@+id/fab_action"  
     android:src="@drawable/ic_discuss"  
     app:layout_anchor="@id/appbar"  
     app:layout_anchorGravity="bottom|right|end" />  
 </android.support.design.widget.CoordinatorLayout>  

check full code on github