无法在android中膨胀布局

Question

mainactivity.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:background="#ff0"
    android:id="@+id/myframe"
    >


    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="left|top"
        android:background="#00f"
        />
</FrameLayout>

子布局.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#f0f"
    >

</TextView>

主活动

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        LayoutInflater layoutInflater = getLayoutInflater();
        View view = layoutInflater.inflate(R.layout.sublayout, null);
        FrameLayout frameLayout = (FrameLayout)findViewById(R.id.myframe);
        setContentView(R.layout.activity_main);
        frameLayout.addView(view);
    }


}

我收到错误消息“在附加的堆栈跟踪中获取了资源，但从未释放。有关避免资源泄漏的信息，请参阅 java.io.Closeable。 java.lang.Throwable：未调用显式终止方法'close'”

Answer 1

问题是您在设置内容视图之前尝试访问该视图试试这个..

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 FrameLayout frameLayout = (FrameLayout)findViewById(R.id.myframe);
 LayoutInflater layoutInflater = getLayoutInflater();
 View view = layoutInflater.inflate(R.layout.sublayout, null);
 frameLayout.addView(view);
 }