沉浸式状态栏和CardView的使用 2019-11-01

主文件

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        immersive();

        setHeightAndPadding(this,findViewById(R.id.toolbar));

//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
//        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
    }

    private void immersive(){
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT){
            return;
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
            Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            //设置状态栏颜色透明
            window.setStatusBarColor(Color.TRANSPARENT);

            int visibility = window.getDecorView().getSystemUiVisibility();
            //布局内容全屏展示
            visibility |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
            //隐藏虚拟导航栏
            visibility |= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
            //防止内容区域大小发生变化
            visibility |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE;

            window.getDecorView().setSystemUiVisibility(visibility);
        }else {
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }

    }

    public int getStatusBarHeight(Context context){
        int resId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
        if (resId > 0){
            return context.getResources().getDimensionPixelSize(resId);
        }
        return 0;
    }

    public void setHeightAndPadding(Context context, View view){
        ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
        layoutParams.height += getStatusBarHeight(context);
        view.setPadding(view.getPaddingLeft(), view.getPaddingTop() + getStatusBarHeight(context), view.getPaddingRight(), view.getPaddingBottom());
    }
}

布局文件

<LinearLayout 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:gravity="center_horizontal"
    android:orientation="vertical">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="56dp"
        android:background="@color/colorPrimary"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:title="toolbar" />

    <!--<ImageView-->
        <!--android:layout_width="match_parent"-->
        <!--android:layout_height="330dp"-->
        <!--android:background="@mipmap/ic_vip_header_bg"-->
        <!--android:contentDescription="@null" />-->

    <!--app:cardBackgroundColor="@color/colorPrimary"  设置cardView背景色 -->
    <!--app:cardPreventCornerOverlap="false" 取消Lollipop以下版本的padding -->
    <!--app:cardUseCompatPadding="true" 为 Lollipop 及其以上版本增加一个阴影padding内边距-->
    <!--app:cardCornerRadius="8dp" 设置cardView圆角效果-->
    <!--app:cardElevation="10dp" 设置cardView Z轴阴影大小-->
    <!--app:cardMaxElevation="6dp" 设置cardView Z轴最大阴影-->
    <!--app:contentPadding="10dp" 设置内容的内边距-->
    <!--app:contentPaddingBottom="12dp" 设置内容的底部内边距-->
    <!--app:contentPaddingLeft="12dp" 设置内容的左边内边距-->
    <!--app:contentPaddingRight="12dp" 设置内容的右边内边距-->
    <!--app:contentPaddingTop="12dp" 设置内容的顶部内边距-->
    <android.support.v7.widget.CardView android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_marginTop="20dp"
        app:cardBackgroundColor="@color/colorPrimary"
        app:cardPreventCornerOverlap="false"
        app:cardUseCompatPadding="true"
        app:cardCornerRadius="8dp"
        app:contentPadding="10dp"
        android:clickable="true"
        android:foreground="?attr/selectableItemBackground"
        app:cardElevation="10dp">

        <TextView android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="cardView"
            android:background="#ffff00"
            android:gravity="center"/>

    </android.support.v7.widget.CardView>

</LinearLayout>

图片

ic_vip_header_bg.png