Android : create RelativeLayout in Onclick Button?(Get Crash)
- by A.A
I have an Xml that add LinearLayout and RelativeLayout in ScrollView by programmatically.When i add Text with OnclickButton for first time show me message but for 2nd time get me crash :
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ScrollView
android:id="@+id/scrollID"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1" >
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:baselineAligned="true"
android:orientation="horizontal"
android:paddingBottom="5dp"
android:paddingLeft="5dp"
android:paddingRight="5dp"
android:weightSum="1" >
<EditText
android:id="@+id/txtInpuConversation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:hint="Text" >
<requestFocus />
</EditText>
<Button
android:id="@+id/btnSend"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:text="Click" />
</LinearLayout>
</LinearLayout>
My code :
public class MainActivity extends Activity {
String Medtconversation;
EditText edtconversation;
TextView txtviewUser;
LinearLayout rilative;
RelativeLayout relativeLayout;
LinearLayout firstLinearLayout;
ScrollView sclView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edtconversation = (EditText) findViewById(R.id.txtInpuConversation);
sclView = (ScrollView) findViewById(R.id.scrollID);
Button btn = (Button) findViewById(R.id.btnSend);
final Context context = this;
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Medtconversation = edtconversation.getText().toString();
txtviewUser = new TextView(MainActivity.this);
txtviewUser.setText(Medtconversation);
relativeLayout = new RelativeLayout(context);
firstLinearLayout= new LinearLayout(context);
LayoutParams LLParamsT = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
relativeLayout.setLayoutParams(LLParamsT);
relativeLayout.addView(txtviewUser,
new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
firstLinearLayout.setOrientation(LinearLayout.VERTICAL);
LayoutParams LLParams = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
firstLinearLayout.setLayoutParams(LLParams);
firstLinearLayout.addView(relativeLayout);
Crash here now======>sclView.addView(firstLinearLayout, new
LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
edtconversation.setText("");
}
});
}
}
I need that when i click on Button and send message for 2nd time create a new RelativeLayout in LinearLayout for show.(In scrollView)
Error :
AndroidRuntime
MainActivity$1.onClick(MainActivity.java:54)
