Get linearLayout from another xml Android
11,334
Solution 1
If I correctly understand your question, you can use
LayoutInflater inflater;
inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout layout = (LinearLayout) inflater.inflate(R.layout.Your_layout_file_with_element1 , null);
Then you can use main.addView(layout );
to add the external layout.
Solution 2
you can say
LinearLayout element1 = (LinearLayout) findViewById(R.id.element1);
main.addView(element1);
Author by
pindol
Updated on June 04, 2022Comments
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pindol almost 2 years
In need to get a LinearLayout that isn't located in the main xml file (the one that i set in setContentView()). So in write this code:
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); LinearLayout main = (LinearLayout) findViewById(R.id.main1); LinearLayout oggetto = (LinearLayout) findViewById(R.id.element1); main.addView(oggetto); }
The xml file where element1 is written is:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/element1" android:layout_width="fill_parent" android:orientation="horizontal" android:layout_height="90px" android:background="#000000"> <LinearLayout android:id="@+id/linearLayoutLeftBar" android:layout_width="10px" android:layout_height="fill_parent" android:orientation="horizontal" android:background="#7FFF00" > </LinearLayout> <LinearLayout android:id="@+id/linearLayoutRightContent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:background="#EEEEEE" > <LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="45px" android:orientation="horizontal" android:background="#EEEEEE" > <LinearLayout android:id="@+id/linearLayoutTxtView1" android:layout_width="wrap_content" android:layout_height="fill_parent" android:orientation="vertical" android:background="#EEEEEE" android:layout_gravity="right" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="fill_parent" android:text="TextBox1" android:layout_marginLeft="5px" android:textColor="#000000" android:gravity="center" /> </LinearLayout> <LinearLayout android:id="@+id/linearLayoutImgView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="right|center" > <ImageView android:id="@+id/imageView1" android:layout_width="16px" android:layout_height="16px" android:layout_marginRight="16px" android:src="@drawable/ic_launcher" android:background="#FF0000"/> </LinearLayout> </LinearLayout> <LinearLayout android:id="@+id/linearLayout2" android:layout_width="fill_parent" android:layout_height="45px" android:orientation="horizontal" android:background="#EEEEEE" > <LinearLayout android:id="@+id/linearLayoutTxtView1" android:layout_width="wrap_content" android:layout_height="fill_parent" android:orientation="vertical" android:background="#EEEEEE" android:layout_gravity="right" > <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="fill_parent" android:text="TextBox2" android:layout_marginLeft="5px" android:textColor="#000000" android:gravity="center" /> </LinearLayout> <LinearLayout android:id="@+id/linearLayoutImgView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:gravity="right|center" > <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="16px" android:text="TextBox3" android:textColor="#000000" android:gravity="center|right" /> </LinearLayout> </LinearLayout> </LinearLayout> </LinearLayout>
The problem is that I get an error when I start the app: Unable to start activity ComponentInfo{com.chiamata/com.chiamata.ChiamataActivity}: java.lang.NullPointerException This because element1 is null. If I put if(element1 != null) before adding it to main Linearlayout everything works fine, but element1 is obviously not added. I need to add it programmatically, so I can't put all in one xml file. How can I do? Thanks, Mattia
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pindol about 12 yearsYes, sorry I write here wrong but in java project is called oggetto
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Anand Jain over 8 yearswhat is meaning of Your_layout_file_with_element1