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Android 体重
原标题:Android Layout_weight

也许我误解了布局——体重参数,但我无法理解为什么不这样做。

<?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" android:weightSum="1">

<TextView
    android:id="@+id/textView1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="TextView" android:layout_weight="0.3" android:background="@color/apr_blue"/>

<TextView
    android:id="@+id/textView2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="0.2"
    android:text="TextView" 
    android:background="@color/apr_brightyellow"/>

<TextView
    android:id="@+id/textView3"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="0.5"
    android:text="TextView" 
    android:background="@color/apr_yellow"/>

</LinearLayout>

I have three or more textviews within a LinearLayout. I want to place them in columns with a percentage width. And that is what it produces:

排 体 重量 0.3 /0.2 /0.5

“Androidpuout_rights不正确”/

然后,我将体重参数改为:

<?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" android:weightSum="1">

<TextView
    android:id="@+id/textView1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="TextView" android:layout_weight="0.3" android:background="@color/apr_blue"/>

<TextView
    android:id="@+id/textView2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="0.3"
    android:text="TextView" 
    android:background="@color/apr_brightyellow"/>

<TextView
    android:id="@+id/textView3"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="0.4"
    android:text="TextView" 
    android:background="@color/apr_yellow"/>

</LinearLayout>

现在,正如我所希望的那样,我收到:

排 体 重量 0.3 /0.2 /0.5

“Androidpuout_eff”/

这是否是一种骗子,或者我是否真的误解了整个布局——体重?

最佳回答

当你使用<条码>android:layout_lina/code>时,请设<条码>android:layout_width=“0dp”(如垂直方向-<条码>android:layout_hala=0dp>)。

问题回答

“entergraph

try this....

        <TextView
            android:background="#F2e"
            android:layout_weight="3"
            android:id="@+id/textView1"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="TextView" />

        <TextView
             android:background="#F6e"
            android:layout_weight="2"
            android:id="@+id/textView2"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="TextView" />

        <TextView
             android:background="#F45"
            android:layout_weight="5"
            android:id="@+id/textView3"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="TextView" />

    </LinearLayout>




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