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知乎专栏

7.11. 带有小三角指示的消息框

7.11.1. 左侧三角

		
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <rotate
            android:fromDegrees="-45"
            android:pivotX="85%"
            android:pivotY="-35%">>
            <shape android:shape="rectangle">
                <size
                    android:width="15dp"
                    android:height="15dp" />
                <solid android:color="#29B460" />
            </shape>
        </rotate>
    </item>
</layer-list>
		
		

7.11.2. 右侧三角

		
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <rotate
            android:fromDegrees="-45"
            android:pivotX="15%"
            android:pivotY="135%">>
            <shape android:shape="rectangle">
                <size
                    android:width="15dp"
                    android:height="15dp" />
                <solid android:color="#ffffff" />
            </shape>
        </rotate>
    </item>
</layer-list>
		
		

7.11.3. 正三角

		
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <rotate
            android:fromDegrees="45"
            android:pivotX="-40%"
            android:pivotY="80%">
            <shape android:shape="rectangle">
                <size
                    android:width="16dp"
                    android:height="16dp" />
                <solid android:color="#7d72ff" />
            </shape>
        </rotate>
    </item>
</layer-list>
		
		

7.11.4. 倒三角

		
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <rotate
            android:fromDegrees="45"
            android:pivotX="135%"
            android:pivotY="15%">
            <shape android:shape="rectangle">
                <size
                    android:width="16dp"
                    android:height="16dp" />
                <solid android:color="#7d72ff" />
            </shape>
        </rotate>
    </item>
</layer-list>
		
		

7.11.5. 文本边框

		
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="#29B460" />
    <corners android:radius="6dp" />
</shape>
		
		
		
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="#FFFFFF" />
    <corners android:radius="6dp" />
</shape>
		
		

7.11.6. 布局

		
<?xml version="1.0" encoding="utf-8"?>
<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:orientation="vertical">

    <LinearLayout
        android:id="@+id/linearLayoutQuestion"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="left"
        android:orientation="horizontal">

        <androidx.cardview.widget.CardView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:layout_weight="0"
            app:cardBackgroundColor="#EEEEEEEE"
            app:cardCornerRadius="10dp"
            app:cardElevation="0dp">

            <ImageView
                android:id="@+id/imageViewAvatar"
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:layout_weight="0"
                android:src="@drawable/avatar"
                android:visibility="visible" />
        </androidx.cardview.widget.CardView>


        <ImageView
            android:layout_width="10dp"
            android:layout_height="match_parent"
            android:layout_gravity="center_vertical"
            android:layout_marginStart="5dp"
            android:layout_weight="0"
            android:src="@drawable/triangle_left" />

        <TextView
            android:id="@+id/textViewQuestion"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:layout_marginEnd="5dp"
            android:layout_weight="1"
            android:background="@drawable/chat_left_rectangle_corner_border"
            android:gravity="center_vertical"
            android:padding="10dp"
            android:textColor="#000000"
            android:textSize="20sp" />


        <Space
            android:layout_width="60dp"
            android:layout_height="match_parent"
            android:layout_weight="0"
            tools:ignore="MissingConstraints" />

    </LinearLayout>

    <Space
        android:id="@+id/space"
        android:layout_width="match_parent"
        android:layout_height="10dp"
        android:layout_weight="0"
        tools:ignore="MissingConstraints" />

    <LinearLayout
        android:id="@+id/linearLayoutAnswer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="right"
        android:orientation="horizontal">

        <Space
            android:layout_width="65dp"
            android:layout_height="60dp"
            android:layout_weight="0"
            tools:ignore="MissingConstraints" />

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1">

            <TextView
                android:id="@+id/textViewAnswer"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/chat_right_rectangle_corner_border"
                android:gravity="fill_horizontal"
                android:inputType="textMultiLine"
                android:minLines="2"
                android:padding="10dp"
                android:text="..."
                android:textColor="#555555"
                android:textSize="20sp"
                tools:ignore="HardcodedText,MissingConstraints,TextViewEdits" />

            <ProgressBar
                android:id="@+id/progressBarAudio"
                style="@style/Widget.AppCompat.ProgressBar.Horizontal"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom|center_horizontal"
                android:layout_marginLeft="100dp"
                android:layout_marginRight="100dp"
                android:progress="0"
                android:visibility="invisible"
                tools:ignore="MissingConstraints" />

            <ImageView
                android:id="@+id/imageViewPlay"
                android:layout_width="25dp"
                android:layout_height="25dp"
                android:layout_gravity="right|bottom"
                android:layout_marginTop="5dp"
                android:layout_marginRight="15dp"
                android:layout_marginBottom="5dp"
                android:layout_weight="0"
                android:src="@drawable/play"
                android:visibility="invisible" />

        </FrameLayout>

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:layout_marginTop="20dp"
            android:src="@drawable/triangle_right" />

        <androidx.cardview.widget.CardView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="top"
            android:layout_weight="0"
            app:cardBackgroundColor="#EEEEEEEE"
            app:cardCornerRadius="10dp"
            app:cardElevation="0dp">

            <ImageView
                android:id="@+id/imageView3"
                android:layout_width="50dp"
                android:layout_height="50dp"
                android:layout_gravity="right"
                android:layout_weight="0"
                android:contentDescription="TODO"
                android:src="@drawable/icon"
                android:visibility="visible" />

        </androidx.cardview.widget.CardView>
    </LinearLayout>

    <Space
        android:layout_width="match_parent"
        android:layout_height="15dp"
        android:layout_weight="0"
        tools:ignore="MissingConstraints" />
</LinearLayout>