问题:在某个主要Layout里面有个LinearLayout,用来动态加载别的view页面,如果需要加载的动态view内容很空洞(例如没有足够的Text长度来撑起整个layout宽度),这时候这个被加载的view就会不能以fill_parent的width来显示。
如图:
实际想要的效果为:
java code:
public class TestActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); LinearLayout layout = (LinearLayout) findViewById(R.id.layout); View view = getLayoutInflater().inflate(R.layout.test, null); layout.addView(view); } }
main 布局:
<?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:background="#fff" android:orientation="vertical" > <LinearLayout android:id="@+id/layout" android:layout_width="fill_parent" android:layout_height="fill_parent" > </LinearLayout> </LinearLayout>
<?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:background="#fff" android:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="测试页面" /> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="5dip" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="账号:" /> <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="5dip" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密码:" /> <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout> </LinearLayout>
在动态view的添加代码前定义一个LayoutParams,然后在添加view时明确定义一下这个view的LayoutParams
public class TestActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); LinearLayout layout = (LinearLayout) findViewById(R.id.layout); View view = getLayoutInflater().inflate(R.layout.test, null); LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT); layout.addView(view, params); } }