Question

我的布局包含多个线性布局。我想点击子布局时，更改其高度以匹配父级。我尝试了这段代码，但点击它时不会扩展布局：

MainActivity.java：

public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    LinearLayout parent = (LinearLayout) inflater.inflate(R.layout.activity_main,
            null);

    for (int i = 0; i < 1; i++) {
        View custom = inflater.inflate(R.layout.row, null);
        TextView tv = (TextView) custom.findViewById(R.id.text);
        tv.setText("Custom View " + i);
        parent.addView(custom);
    }

    setContentView(parent);

    View row = inflater.inflate(R.layout.row, null);
    final LinearLayout ro = (LinearLayout) findViewById(R.layout.row);
    row.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub

            ro.getLayoutParams().height = 100;
        }
    });
}

和activity_main.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="fill_parent"
    android:orientation="vertical" >
</LinearLayout>

和row.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="30dp"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
    android:orientation="horizontal" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" />

        <TextView
            android:id="@+id/text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" />
    </LinearLayout>

</LinearLayout>

Answer 1

试试这个：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    LinearLayout parent = (LinearLayout) inflater.inflate(R.layout.activity_main,
            null);

    for (int i = 0; i < 1; i++) {
        View custom = inflater.inflate(R.layout.row, null);
        custom.setTag(i); 
        TextView tv = (TextView) custom.findViewById(R.id.text);
        tv.setText("Custom View " + i);
        parent.addView(custom);
    }

    setContentView(parent);

    for (int i = 0; i < 1; i++) {
      View row = findViewByTag(i);
       row.setOnClickListener(new View.OnClickListener(){
           @Override
           public void onClick(View v) {
                // TODO Auto-generated method stub

                ro.getLayoutParams().height = 100;
           }
    });
    }        
}

注意：我没有测试过它..plz解决了小错误，如果有的话

单击它时更改android布局高度

1 个答案: