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渣渣学安卓之banner图和首页布局

5182人阅读 2019/2/23 14:59 总访问：177960 评论：2 收藏：0 手机

分类: android

接上文，登录页写完，该上首页了。

找度娘搜索安卓APP首页布局，想借鉴下，没搜到相关代码。只能赶鸭子上架，自己琢磨。

效果图涉及项目隐私就不上了。

首先是登录页跳转，登录按钮里添加方法就可以搞定。

页面可视化布局我们通常在，res——layout下设计，代码部分在java文件夹的包下操作，后缀名为.java。

登录页面代码如下：

public class login_user extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login_user);
        Button btn = (Button) findViewById(R.id.button22);


        btn.setOnClickListener(new View.OnClickListener() {  
            @Override
            public void onClick(View v) {

                Intent intent = new Intent(login_user.this, MainActivity.class);
                startActivity(intent);

            }

        });

    }
}

（插播一句）如果此处我们需要自定义启动页面，可到manifests下的AndroidManifests.xml下去设置，如图：

其次是 banner图部分

轮播图现在有viewpager这个控件，但是没有思路，找度娘搜索了一下，发现了有前人做过的banner图demo,还附带插件，真是为民谋福利。下载起来，果真能用，下载地址附在这里，有需要的可以下载来玩玩。

链接：https://pan.baidu.com/s/1F4WIfNVYAf35J-CYO9VkEQ

提取码：9fgn

再然后就是页面布局了，无非就是各种拖拖拖，调调调，拉拉拉，直接上布局代码。

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context=".MainActivity">

    <LinearLayout
        android:id="@+id/linearLayout7"
        android:layout_width="0dp"
        android:layout_height="420dp"
        android:gravity="center_horizontal"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:orientation="horizontal">

            <Button
                android:id="@+id/button"
                style="@style/Widget.AppCompat.Button.Colored"
                android:layout_width="20dp"
                android:layout_height="40dp"
                android:layout_marginLeft="15dp"
                android:layout_weight="2"
                android:text="最新"
                tools:background="@android:color/white"
                tools:textColor="@android:color/holo_red_light" />

            <TextView
                android:id="@+id/textView"
                android:layout_width="wrap_content"
                android:layout_height="45dp"
                android:layout_weight="6"
                android:paddingLeft="10dp"
                android:paddingTop="8dp"
                android:text="今天下午两点在大会议室开会" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="90dp"
            android:layout_gravity="center_vertical"
            android:orientation="horizontal"
            android:paddingLeft="20dp">

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView3"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/xwzx" />

                <TextView
                    android:id="@+id/textView14"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center_horizontal"
                    android:text="新闻资讯"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView5"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/h_wyzf" />

                <TextView
                    android:id="@+id/textView15"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="专家访谈"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView7"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/h_lzxcp" />

                <TextView
                    android:id="@+id/textView16"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="职务宣传"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView8"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/h_qhzzd" />

                <TextView
                    android:id="@+id/textView11"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="新闻播报"
                    android:textColor="@android:color/black" />

            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="90dp"
            android:layout_marginLeft="-15dp"
            android:orientation="horizontal"
            android:paddingTop="10dp">

            <LinearLayout
                android:layout_width="175dp"
                android:layout_height="match_parent"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView12"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    app:srcCompat="@drawable/h_zyjs" />

            </LinearLayout>

            <LinearLayout
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView13"
                    android:layout_width="175dp"
                    android:layout_height="wrap_content"
                    app:srcCompat="@drawable/h_qhzx" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="90dp"
            android:layout_marginTop="10dp"
            android:orientation="horizontal"
            android:paddingLeft="20dp">

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView20"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_1" />

                <TextView
                    android:id="@+id/textView21"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="新闻服务"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_2" />

                <TextView
                    android:id="@+id/textView4"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="新闻管理"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView2"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_3" />

                <TextView
                    android:id="@+id/textView5"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="事务管理"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView4"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_4" />

                <TextView
                    android:id="@+id/textView6"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="新闻轶事"
                    android:textColor="@android:color/black" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:paddingLeft="20dp">

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView6"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_5" />

                <TextView
                    android:id="@+id/textView7"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="时事热点"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView9"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_6" />

                <TextView
                    android:id="@+id/textView8"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="今日头条"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView10"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_7" />

                <TextView
                    android:id="@+id/textView9"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="管理工作"
                    android:textColor="@android:color/black" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="85dp"
                android:layout_height="90dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/imageView11"
                    android:layout_width="55dp"
                    android:layout_height="70dp"
                    app:srcCompat="@drawable/png_8" />

                <TextView
                    android:id="@+id/textView10"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:gravity="center_horizontal"
                    android:text="远程咨询"
                    android:textColor="@android:color/black" />
            </LinearLayout>
        </LinearLayout>

    </LinearLayout>

    <FrameLayout
        android:id="@+id/frameLayout"
        android:layout_width="0dp"
        android:layout_height="150dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <android.support.v4.view.ViewPager
            android:id="@+id/viewPager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:layout_editor_absoluteX="8dp"
            tools:layout_editor_absoluteY="0dp" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="35dip"
            android:layout_gravity="bottom"
            android:background="#33000000"
            android:gravity="center_vertical"
            android:orientation="horizontal"
            android:weightSum="10">

            <TextView
                android:id="@+id/tv_pager_title"
                android:layout_width="0dp"
                android:layout_height="35dip"
                android:layout_weight="8"
                android:gravity="center_vertical"
                android:paddingLeft="8dip"
                android:text="加载图片轮播失败"
                android:textColor="@android:color/white" />

            <LinearLayout
                android:id="@+id/lineLayout_dot"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:gravity="center|right"
                android:orientation="horizontal"></LinearLayout>

        </LinearLayout>

    </FrameLayout>

</android.support.constraint.ConstraintLayout>

效果图如上所示，页面是出来了，此处还存在一个问题，那就是不能滑动，我需要当子控件超过了屏幕,就可以上下或者左右的滚动来展示。继续找度娘，有同胞说可用ScrollView控件，下次试了再来。

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渣渣学安卓之banner图和首页布局

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