Android子视图高度与ListView项中的父级不匹配

Question

如上所述,我的List项是一个FrameLayout,里面有两个视图.

ColorView 是我在整个视图中为显示颜色制作的自定义视图.

(FrameLayout的高度是"wrap_content")

它似乎在我的ICS设备上运行良好,但在我的Android 2.2模拟器和Android 1.6 G1上不起作用.

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <org.mariotaku.twidere.view.ColorView
        android:id="@+id/status_background"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:background="@drawable/ic_label_user"/>

    <RelativeLayout
        android:id="@+id/status_content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="6dp"
        android:paddingRight="6dp"
        android:paddingTop="6dp">

        <org.mariotaku.twidere.view.RoundCorneredImageView
            android:id="@+id/profile_image"
            android:layout_width="@dimen/profile_image_size"
            android:layout_height="@dimen/profile_image_size"
            android:layout_marginLeft="6dp"
            android:scaleType="fitCenter"/>

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_alignWithParentIfMissing="true"
            android:layout_marginLeft="6dp"
            android:layout_toLeftOf="@+id/time"
            android:layout_toRightOf="@+id/profile_image"
            android:singleLine="true"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="?android:attr/textColorPrimary"
            android:textStyle="bold"/>

        <TextView
            android:id="@+id/text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/name"
            android:layout_alignParentRight="true"
            android:layout_alignWithParentIfMissing="true"
            android:layout_below="@+id/name"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="?android:attr/textColorSecondary"/>

        <TextView
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/name"
            android:layout_alignParentRight="true"
            android:layout_alignWithParentIfMissing="true"
            android:drawablePadding="3dp"
            android:gravity="center_vertical|right"
            android:textColor="?android:attr/textColorSecondary"/>

        <ImageView
            android:id="@+id/image_preview"
            android:layout_width="@dimen/preview_image_size"
            android:layout_height="@dimen/preview_image_size"
            android:layout_alignWithParentIfMissing="true"
            android:layout_below="@+id/text"
            android:layout_marginLeft="16dp"
            android:layout_marginTop="3dp"
            android:layout_toRightOf="@+id/profile_image"
            android:background="@drawable/image_preview_background"
            android:drawablePadding="3dp"
            android:scaleType="fitCenter"
            android:visibility="gone"/>

        <TextView
            android:id="@+id/reply_retweet_status"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignWithParentIfMissing="true"
            android:layout_below="@+id/image_preview"
            android:layout_toRightOf="@+id/profile_image"
            android:drawablePadding="3dp"
            android:paddingLeft="6dp"
            android:paddingTop="3dp"
            android:textColor="?android:attr/textColorSecondary"/>
    </RelativeLayout>

    <TextView
        android:id="@+id/list_gap_text"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:layout_gravity="center"
        android:gravity="center"
        android:text="@string/tap_to_load_more"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textStyle="bold"
        android:visibility="gone"/>

</FrameLayout>

它是否有任何解决方法或其他方法来解决这个问题？

编辑

代码 ColorView

package org.mariotaku.twidere.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.util.AttributeSet;
import android.view.View;

public class ColorView extends View {

    private int mColor = Color.TRANSPARENT;

    public ColorView(Context context) {
        this(context, null);
    }

    public ColorView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public ColorView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void setColor(int color) {
        mColor = color;
        invalidate();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.drawColor(mColor);
    }

}

Answer 1

我们只需处理类似的问题.我们注意到在作为ListView项的一部分的视图上使用match_height将无法按预期工作.以下代码应该有效:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <FrameLayout
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@+id/color_bar" >

        <!-- Put the content views of your item here. You do not have to use frame layout, it can be any kind of view. -->

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="8dp"
            android:text="@string/app_name" />
    </FrameLayout>

    <View
        android:id="@id/color_bar"
        android:layout_width="10dp"
        android:layout_height="match_parent"
        android:layout_alignBottom="@id/content"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@id/content"
        android:background="@android:color/darker_gray" />

</RelativeLayout>

诀窍基本上是将彩色视图与内容视图的顶部和底部对齐.无论内容的高度如何,它都将被彩色视图采用.

另外,如Android的文档中所述,您不应该使用FrameLayout来包含多个子项.

编辑

我的同事让我注意到,如果我们使用LinearLayout作为listview项的根元素,match_parent将按预期工作:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/content"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:padding="8dp"
        android:text="@string/app_name" />

    <View
        android:id="@+id/color_bar"
        android:layout_width="10dp"
        android:layout_height="match_parent"
        android:background="@android:color/darker_gray" />

</LinearLayout>

我在使用Android 2.2的设备上测试了它并且它正常工作.

Answer 2

太伤心了，没有人知道如何处理这个问题。

但最后我使用了一个解决方法来解决这个问题。

新布局 XML：

<?xml version="1.0" encoding="utf-8"?>
<org.mariotaku.twidere.view.ColorLabelRelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="6dp">

    <org.mariotaku.twidere.view.RoundCorneredImageView
        android:id="@+id/profile_image"
        android:layout_width="@dimen/profile_image_size"
        android:layout_height="@dimen/profile_image_size"
        android:scaleType="fitCenter"/>

    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_alignWithParentIfMissing="true"
        android:layout_marginLeft="3dp"
        android:layout_toLeftOf="@+id/time"
        android:layout_toRightOf="@+id/profile_image"
        android:singleLine="true"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="?android:attr/textColorPrimary"
        android:textStyle="bold"/>

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/name"
        android:layout_alignParentRight="true"
        android:layout_alignWithParentIfMissing="true"
        android:layout_below="@+id/name"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="?android:attr/textColorSecondary"/>

    <TextView
        android:id="@+id/time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/name"
        android:layout_alignParentRight="true"
        android:layout_alignWithParentIfMissing="true"
        android:drawablePadding="3dp"
        android:gravity="center_vertical|right"
        android:textColor="?android:attr/textColorSecondary"/>

    <ImageView
        android:id="@+id/image_preview"
        android:layout_width="@dimen/preview_image_size"
        android:layout_height="@dimen/preview_image_size"
        android:layout_alignWithParentIfMissing="true"
        android:layout_below="@+id/text"
        android:layout_marginLeft="16dp"
        android:layout_marginTop="3dp"
        android:layout_toRightOf="@+id/profile_image"
        android:background="@drawable/image_preview_background"
        android:drawablePadding="3dp"
        android:scaleType="fitCenter"
        android:visibility="gone"/>

    <TextView
        android:id="@+id/reply_retweet_status"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignWithParentIfMissing="true"
        android:layout_below="@+id/image_preview"
        android:layout_toRightOf="@+id/profile_image"
        android:drawablePadding="3dp"
        android:paddingLeft="6dp"
        android:paddingTop="3dp"
        android:textColor="?android:attr/textColorSecondary"/>

    <TextView
        android:id="@+id/list_gap_text"
        android:layout_width="wrap_content"
        android:layout_height="42dp"
        android:layout_centerInParent="true"
        android:gravity="center"
        android:text="@string/tap_to_load_more"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textStyle="bold"
        android:visibility="gone"/>

</org.mariotaku.twidere.view.ColorLabelRelativeLayout>

代码ColorLabelRelativeLayout：

/*
 *              Twidere - Twitter client for Android
 * 
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.mariotaku.twidere.view;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.widget.RelativeLayout;

public class ColorLabelRelativeLayout extends RelativeLayout {

    private final Paint mPaintLeft = new Paint(), mPaintRight = new Paint(), mPaintBackground = new Paint();
    private final Rect mRectLeft = new Rect(), mRectRight = new Rect(), mRectBackground = new Rect();
    private final float mDensity;       

    public ColorLabelRelativeLayout(Context context) {
        this(context, null);
    }

    public ColorLabelRelativeLayout(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public ColorLabelRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        setWillNotDraw(false);
        mDensity = context.getResources().getDisplayMetrics().density;
        mPaintLeft.setColor(Color.TRANSPARENT);
        mPaintRight.setColor(Color.TRANSPARENT);
        mPaintBackground.setColor(Color.TRANSPARENT);
    }

    public void drawLabel(int left, int right, int background) {
        mPaintBackground.setColor(background);
        mPaintLeft.setColor(left);
        mPaintRight.setColor(right);
        invalidate();
    }

    public void drawLeft(int color) {
        drawLabel(color, mPaintRight.getColor(), mPaintBackground.getColor());
    }

    public void drawRight(int color) {
        drawLabel(mPaintLeft.getColor(), color, mPaintBackground.getColor());
    }

    public void drawBackground(int color) {
        drawLabel(mPaintLeft.getColor(), mPaintRight.getColor(), color);
    }

    @Override
    public void onDraw(Canvas canvas) {
        canvas.drawRect(mRectBackground, mPaintBackground);
        canvas.drawRect(mRectLeft, mPaintLeft);
        canvas.drawRect(mRectRight, mPaintRight);
        super.onDraw(canvas);
    }

    @Override
    public void onSizeChanged(int w, int h, int oldw, int oldh) {
        mRectBackground.set(0, 0, w, h);
        mRectLeft.set(0, 0, (int)(4 * mDensity), h);
        mRectRight.set(w - (int)(4 * mDensity), 0, w, h);
        super.onSizeChanged(w, h, oldw, oldh);
    }
}

它对我来说非常有效。