[英]How to dynamically include a layout in Android?
我想包含一個動態內容來利用已經創建的所有布局,而不必擁有包含每個actitivy所有功能的xml。
根據所訪問的活動,我注意到android有一個想用它來確定我的內容是什么。
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="br.com.p21sistemas.certidao21.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include android:id="@+id/content" layout="@layout/content_??????" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
android:src="@android:drawable/ic_dialog_email" />
public class WizardActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); // main xml
// Something I do not know what may include my content content_wizard
}
}
您可以在XML中定義一個空的布局,您希望在其中添加動態內容,並從代碼中添加內容。
像這樣的東西:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:id="@+id/dynamic_content"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
android:src="@android:drawable/ic_dialog_email" />
然后,從您的代碼:
// get ahold of the instance of your layout
LinearLayout dynamicContent = (LinearLayout) findViewById(R.id.dynamic_content);
// assuming your Wizard content is in content_wizard.xml
View wizardView = getLayoutInflater()
.inflate(R.layout.content_wizard, dynamicContent, false);
// add the inflated View to the layout
dynamicContent.addView(wizardView);
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