Question

我正在尝试使用我的布局文件放置TextViews和Buttons行。看起来应该是这样的：

Row 1: [ TextView ( ~2/3 of the screen ) ] [ Button (~1/3 of the screen) ]

Row 2: [ TextView ( ~2/3 of the screen ) ] [ Button (~1/3 of the screen) ]

Row 3: [ TextView ( ~2/3 of the screen ) ] [ Button (~1/3 of the screen) ]

Row 4: [ TextView ( ~2/3 of the screen ) ] [ Button (~1/3 of the screen) ]

Row 5: [ TextView ( ~2/3 of the screen ) ] [ Button (~1/3 of the screen) ]

.....

我对如何做到这一点很困惑。我可以使用TableLayout或RelativeLayouts吗？有人可以给我看一些示例代码，因为我不知道如何使用XML。非常感谢你的帮助！

Answer 1

是的，你可以用LinearLayout - android:weightSum做到这一点，这是一行的例子，

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

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:weightSum="0.1" >

        <TextView
            android:text="left" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_weight="0.33" /> 

        <Button
            android:text="right" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_weight="0.67" />

    </LinearLayout>

编辑： 我看到你不明白如何使用它，假设你有两个布局，（main.xml和list_template.xml）

<强> main.xml中

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ScrollView01" android:layout_width="fill_parent"
android:layout_height="fill_parent">


    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:id="@+id/mainLayout"
    >

    </LinearLayout>
</ScrollView>

<强> list_template.xml

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

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content"
    android:weightSum="100" >

        <TextView
            android:text="left" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_weight="33"
            android:id="@+id/list_textView" /> 

        <Button
            android:text="right" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_weight="67" 
            android:id="@+id/list_button" />

    </LinearLayout>

list_template是一行列表的布局模板，我们会给它充气。怎么样？

public class StackoverflowActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle b) {
        super.onCreate(b);
        setContentView(R.layout.main);

        LinearLayout mainLayout = (LinearLayout) findViewById(R.id.mainLayout);
        LayoutInflater li =  (LayoutInflater)getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        for (int i = 0; i < 5;  i++){
               View tempView = li.inflate(R.layout.list_template, null);

               TextView list_textView = (TextView) tempView.findViewById(R.id.list_textView);
               list_textView.setText("TextView"+i);

               Button list_button = (Button) tempView.findViewById(R.id.list_button);
               list_button.setText("Button"+i);
               list_button.setId(i);

               list_button.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    //Button clicked
                    Toast.makeText(StackoverflowActivity.this, "Button" + v.getId() + " clicked", Toast.LENGTH_SHORT).show();
                }
            });
               mainLayout.addView(tempView);
            }
    }
}

在Android中放置小部件行

1 个答案: