Question

我熟悉Android材料设计，我正在尝试创建一个简单的项目，该项目基于scrolllerView的滚动实现折叠工具栏。该项目仅包含一个活动，其布局包含reciclerView。我想我已经做了正确实现这个动画的必要。问题是滚动时，状态栏的背景（颜色越强）消失，工具栏重叠状态栏而不是完全隐藏。我将添加图片和代码以给你一个想法。在此先感谢，我将非常感谢您的帮助。

Toolbar before collapsing

Toolbar after collapsing

这是MainActivity布局。

<?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"
    android:id="@+id/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">


    <android.support.v7.widget.RecyclerView
        android:id="@+id/rvComments"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#333333"
        android:scrollbars="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

    <android.support.design.widget.AppBarLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>

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

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

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

这是build.gradle文件，我在其中添加了依赖项

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
       applicationId "com.example.francisco.recycler"
       minSdkVersion 19
       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-v7:23.1.0'
    compile 'com.android.support:design:23.1.0'
    compile 'com.android.support:recyclerview-v7:23.1.0'
}

最后，如果它需要MainActivity.java

public class MainActivity extends AppCompatActivity {

private RecyclerView  rvComments;
private List<Comentario> commentsList;
private CommentsAdapter adapter;


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

    // Data Arraylist
    commentsList = new ArrayList<>();
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));
    commentsList.add(new Comentario(1, 1, 1, "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. ", null, "Name", "LastName", " ", "Telematics Engineer", null));


    // Setting the adapter
    adapter = new CommentsAdapter(this, commentsList);
    rvComments.setAdapter(adapter);
    rvComments.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));


    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();
        }
    });
}

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

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}
}

我已经从网上下载了一个具有这种效果的项目，它运行正常，但我看不出我的错误。

Answer 1

尝试添加

机器人：fitsSystemWindows =＆＃34;真＆＃34;

AppBar和工具栏中的

折叠工具栏Android中的奇怪行为

1 个答案: