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Scroll View Exampe Android

3 min read
ScrollingActivity.java

package com.example.desktop.test;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

public class ScrollingActivity extends AppCompatActivity {

@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scrolling);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
}

activity_scrolling.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.desktop.test.ScrollingActivity">

<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="@dimen/app_bar_height"
android:fitsSystemWindows="true"
android:theme="@style/AppTheme.AppBarOverlay">

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

<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/AppTheme.PopupOverlay" />

</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

<include layout="@layout/content_scrolling" />

<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:src="@android:drawable/ic_dialog_email"
app:layout_anchor="@id/app_bar"
app:layout_anchorGravity="bottom|end" />

</android.support.design.widget.CoordinatorLayout>

content_scrolling.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.desktop.test.ScrollingActivity"
tools:showIn="@layout/activity_scrolling">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/text_margin"
android:text="@string/large_text" />

</android.support.v4.widget.NestedScrollView>

string.xml


<resources>
<string name="app_name">test</string>
<string name="large_text">
"Material is the metaphor.nn"

"A material metaphor is the unifying theory of a rationalized space and a system of motion."
"The material is grounded in tactile reality, inspired by the study of paper and ink, yet "
"technologically advanced and open to imagination and magic.n"
"Surfaces and edges of the material provide visual cues that are grounded in reality. The "
"use of familiar tactile attributes helps users quickly understand affordances. Yet the "
"flexibility of the material creates new affordances that supercede those in the physical "
"world, without breaking the rules of physics.n"
"The fundamentals of light, surface, and movement are key to conveying how objects move, "
"interact, and exist in space and in relation to each other. Realistic lighting shows "
"seams, divides space, and indicates moving parts.nn"

"Bold, graphic, intentional.nn"

"The foundational elements of print based design typography, grids, space, scale, color, "
"and use of imagery guide visual treatments. These elements do far more than please the "
"eye. They create hierarchy, meaning, and focus. Deliberate color choices, edge to edge "
"imagery, large scale typography, and intentional white space create a bold and graphic "
"interface that immerse the user in the experience.n"
"An emphasis on user actions makes core functionality immediately apparent and provides "
"waypoints for the user.nn"

"Motion provides meaning.nn"

"Motion respects and reinforces the user as the prime mover. Primary user actions are "
"inflection points that initiate motion, transforming the whole design.n"
"All action takes place in a single environment. Objects are presented to the user without "
"breaking the continuity of experience even as they transform and reorganize.n"
"Motion is meaningful and appropriate, serving to focus attention and maintain continuity. "
"Feedback is subtle yet clear. Transitions are ef´Čücient yet coherent.nn"

"3D world.nn"

"The material environment is a 3D space, which means all objects have x, y, and z "
"dimensions. The z-axis is perpendicularly aligned to the plane of the display, with the "
"positive z-axis extending towards the viewer. Every sheet of material occupies a single "
"position along the z-axis and has a standard 1dp thickness.n"
"On the web, the z-axis is used for layering and not for perspective. The 3D world is "
"emulated by manipulating the y-axis.nn"

"Light and shadow.nn"

"Within the material environment, virtual lights illuminate the scene. Key lights create "
"directional shadows, while ambient light creates soft shadows from all angles.n"
"Shadows in the material environment are cast by these two light sources. In Android "
"development, shadows occur when light sources are blocked by sheets of material at "
"various positions along the z-axis. On the web, shadows are depicted by manipulating the "
"y-axis only. The following example shows the card with a height of 6dp.nn"

"Resting elevation.nn"

"All material objects, regardless of size, have a resting elevation, or default elevation "
"that does not change. If an object changes elevation, it should return to its resting "
"elevation as soon as possible.nn"

"Component elevations.nn"

"The resting elevation for a component type is consistent across apps (e.g., FAB elevation "
"does not vary from 6dp in one app to 16dp in another app).n"
"Components may have different resting elevations across platforms, depending on the depth "
"of the environment (e.g., TV has a greater depth than mobile or desktop).nn"
        "when a user tries to pick up one of cards.nn"
</string>
<string name="action_settings">Settings</string>
</resources>

build.gradle(app)


apply plugin: 'com.android.application'

android {
compileSdkVersion 23
buildToolsVersion "23.0.3"

defaultConfig {
applicationId "com.example.desktop.test"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'com.android.support:design:23.3.0'
}

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