SlidingDrawer underlap in RelativeLayout

SlidingDrawer underlap in RelativeLayout - android

I used a SlidingDrawer like in this tutorial
It works in a LinearLayout, but there is always a whitespace depending of the hight of the slider and all other stuff show up below the whitespace.
The soloution should be to use a Relative Layout. This deletes the whitespace but the handlerbutton from the slider seems to be under the content in the scrollview and don't do anything by clicking on it. See the screenshot
MainActivity.xml
<RelativeLayout 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="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="#+id/tbar"
layout="#layout/primerdivisor" />
<SlidingDrawer
android:id="#+id/SlidingDrawer"
android:layout_width="wrap_content"
android:layout_height="150dp"
android:content="#+id/contentLayout"
android:handle="#+id/slideButton"
android:orientation="vertical"
android:padding="10dip"
android:rotation="180">
<!-- Handle button -->
<Button
android:id="#+id/slideButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/button_selector"
android:ems="10"
android:rotation="180"
android:text="Show" android:clickable="true"/>
<!-- Content Layout -->
<LinearLayout
android:id="#+id/contentLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FFCC"
android:gravity="center"
android:orientation="vertical"
android:padding="10dip">
<Button
android:id="#+id/Button01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="2dp"
android:background="#drawable/button_selector"
android:text="Button 1"
android:textColor="#color/textBlack" />
<TextView
android:id="#+id/text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="2dp"
android:background="#drawable/button_selector"
android:gravity="center"
android:padding="5dp"
android:text="Text View Item"
android:textColor="#color/textBlack" />
</LinearLayout>
</SlidingDrawer>
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="10dp"
android:orientation="vertical">
....
MainActivity.java
...
private void createSlider(){
slideButton = (Button) findViewById(R.id.slideButton);
slidingDrawer = (SlidingDrawer) findViewById(R.id.SlidingDrawer);
b1 = (Button) findViewById(R.id.Button01);
textView = (TextView) findViewById(R.id.text);
// Setting Listeners to all buttons and textview
setListeners();
// Listeners for sliding drawer
slidingDrawer.setOnDrawerOpenListener(new OnDrawerOpenListener() {
#Override
public void onDrawerOpened() {
// Change button text when slider is open
Log.i("----","blaaaaaa open");
slideButton.setText("Close");
}
});
slidingDrawer.setOnDrawerCloseListener(new OnDrawerCloseListener() {
#Override
public void onDrawerClosed() {
// Change button text when slider is close
slideButton.setText("Open");
}
});
}
// Listeners method
void setListeners() {
b1.setOnClickListener(this);
textView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
// Toast shown on sliding drawer items click
if (v.getId() == R.id.text) {
Toast.makeText(MainActivity.this, textView.getText() + " Clicked",
Toast.LENGTH_SHORT).show();
} else {
Button b = (Button) v;
Toast.makeText(MainActivity.this, b.getText() + " Clicked",
Toast.LENGTH_SHORT).show();
}
}
...
The slider should overlap the scrollview when its whiped out

In view hierarchy terms, views defined at the beginning of your layout XML are "deeper" than those defined later.
In your case your ScrollView is added to the hierarchy after your SlidingDrawer so what your seeing is to be expected.
Move your SlidingDrawer to below your ScrollView and it should be above it.

Related

Android: How to inflate different layout from different buttons?

I trying to do making something tabs but using button.
but each time I click on button it add me a row.
I want it to change the all layout to another..
MainActivity
public class MainActivity extends Activity {
Button btn1;
Button btn2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = (Button) findViewById(R.id.button1);
btn1.setOnClickListener(switchListener);
btn2 = (Button) findViewById(R.id.button2);
btn2.setOnClickListener(switchListener);
}
private OnClickListener switchListener = new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
//ScrollView sv = (ScrollView) findViewById(R.id.MyScrollView);
LinearLayout ll = (LinearLayout) findViewById(R.id.MyLinearLayout);
LayoutInflater inflater = LayoutInflater
.from(getApplicationContext());
if (btn1 == v) {
View v1 = inflater.inflate(R.layout.firstview, null);
ll.addView(v1);
} else {
View v2 = getLayoutInflater().inflate(R.layout.secondview, null);
ll.addView(v2);
}
}
};
}
and here my Main XML file
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Layout 1" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Layout 2" />
</TableRow>
<TableRow
android:id="#+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
<ScrollView
android:id="#+id/MyScrollView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
<LinearLayout
android:id="#+id/MyLinearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</TableRow>
and here my other two layouts that I want to inflate
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="First View"
android:textAppearance="?android:attr/textAppearanceLarge"
android:gravity="center"
android:background="#android:color/holo_blue_light"/>
and the second
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Second View"
android:textAppearance="?android:attr/textAppearanceLarge"
android:gravity="center"
android:background="#android:color/holo_red_light"/>

First make match parent your tableview.
and now do below on your code:-
if(ll.getChildCount() > 0) {
ll.removeAllViews();
}
if (btn1 == v) {
View v1 = inflater.inflate(R.layout.firstview, null);
ll.addView(v1);
} else {
View v2 = getLayoutInflater().inflate(R.layout.secondview, null);
ll.addView(v2);
}
the problem is you are just adding child on layout one by one so you need to remove first then add into layout so try above code.

before adding views to your ll linear layout check, as
if(ll.getChildCount() > 0) {
ll.removeAllViews();
}
then perform:
ll.addView(view) v1 or v2 as required.

How to create a Button in the camera view in vuforia?

I am using Vuforia AR sdk and want to create a button on the camera preview on the screen.
I cannot figure out where and how to add the button.

I have edit the camera_overlay_udt.xml like this.. In my layout design i have placed back button and listview.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/camera_overlay_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="#+id/headerLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#drawable/header"
android:orientation="horizontal" >
<ImageButton
android:id="#+id/backButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:background="#android:color/transparent"
android:src="#drawable/back" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Swipart"
android:textColor="#color/white"
android:textSize="18dp"
android:textStyle="bold" />
<ImageButton
android:id="#+id/arcstarButton"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:layout_marginRight="10dp"
android:background="#android:color/transparent"
android:src="#drawable/star_button" />
</RelativeLayout>
</LinearLayout>
<LinearLayout
android:id="#+id/favListingLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/headerLayout"
android:gravity="top"
android:orientation="horizontal"
android:visibility="visible" >
<ListView
android:id="#+id/favlist"
android:layout_width="120dp"
android:layout_height="match_parent"
android:layout_marginBottom="50dp"
android:layout_marginLeft="7dp"
android:cacheColorHint="#00000000" />
</LinearLayout>
<LinearLayout
android:id="#+id/bottom_bar"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_marginRight="10dp"
android:background="#color/overlay_bottom_bar_background"
android:gravity="center_vertical"
android:orientation="horizontal"
android:visibility="visible"
android:weightSum="1" >
<View
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#color/overlay_bottom_bar_separators" />
<ImageButton
android:id="#+id/camera_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#null"
android:contentDescription="#string/content_desc_camera_button"
android:onClick="onCameraClick"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:src="#drawable/camera_button_background" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_above="#id/bottom_bar"
android:background="#color/overlay_bottom_bar_separators" />
</RelativeLayout>
after that please Edit that ImageTargets.java class
private void addOverlayView(boolean initLayout) {
// Inflates the Overlay Layout to be displayed above the Camera View
LayoutInflater inflater = LayoutInflater.from(this);
mUILayouts = (RelativeLayout) inflater.inflate(
R.layout.camera_overlay_udt, null, false);
mUILayouts.setVisibility(View.VISIBLE);
// If this is the first time that the application runs then the
// uiLayout background is set to BLACK color, will be set to
// transparent once the SDK is initialized and camera ready to draw
if (initLayout) {
mUILayouts.setBackgroundColor(Color.TRANSPARENT);
}
// Adds the inflated layout to the view
addContentView(mUILayouts, new LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
// Gets a reference to the bottom navigation bar
mBottomBar = mUILayouts.findViewById(R.id.bottom_bar);
// Gets a reference to the Camera button
mCameraButton = mUILayouts.findViewById(R.id.camera_button);
mCameraButton.setVisibility(View.GONE);
favButton = (ImageButton) mUILayouts.findViewById(R.id.arcstarButton);
listview = (ListView) mUILayouts.findViewById(R.id.favlist);
backButton = (ImageButton) mUILayouts.findViewById(R.id.backButton);
backButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View paramView) {
// TODO Auto-generated method stub
finish();
}
});
listview.setVisibility(View.GONE);
galleryList = SendFile.getFavourites();
if (galleryList != null) {
gridviewAdapter = new GridviewAdapter(ImageTargets.this);
listview.setAdapter(gridviewAdapter);
}
favButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (galleryList != null && galleryList.size() > 0) {
if (listview.getVisibility() == View.GONE) {
listview.setVisibility(View.VISIBLE);
} else {
listview.setVisibility(View.GONE);
}
} else {
Toast.makeText(ImageTargets.this, "Favourites not fond",
Toast.LENGTH_LONG).show();
}
}
});
listview.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> paramAdapterView,
View paramView, int positon, long paramLong) {
SendFile.setFavourite(galleryList.get(positon));
Intent intent = new Intent(ImageTargets.this,
LoadingScreen.class);
Bundle bundle = new Bundle();
bundle.putInt("x", x_Axis);
bundle.putInt("y", y_Axis);
intent.putExtras(bundle);
startActivity(intent);
finish();
}
});
showDialogHandler = new Handler() {
public void handleMessage(Message msg) {
String aResponse = msg.getData().getString("message");
if ((null != aResponse)) {
// ALERT MESSAGE
Toast.makeText(getBaseContext(),
"Server Response: " + aResponse, Toast.LENGTH_SHORT)
.show();
showAlertDialog(aResponse);
} else {
// ALERT MESSAGE
Toast.makeText(getBaseContext(),
"Not Got Response From Server.", Toast.LENGTH_SHORT)
.show();
}
};
};
loadingDialogHandler.captureButtonContainer = mUILayouts
.findViewById(R.id.camera_button);
mUILayouts.bringToFront();
}
They showing there layouts using handlers

Start you camera preview in a normal way. Place a layout on top of it with transparent background like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:background="#ff000000"
android:layout_height="match_parent">
<ImageView
android:id="#+id/start_image_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="5dp"
android:scaleType="fitXY"
android:layout_weight="1"
android:src="#drawable/scan_image"/>
</RelativeLayout>
In java file, you can add this layout like this:
private View mStartupView;
mStartupView = getLayoutInflater().inflate(
R.layout.startup_screen, null);
// Add it to the content view:
addContentView(mStartupView, new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
This way you will get to see your button on top of camera preview. Hope it helps

You can add buttons in cameraoverlay layout which is in layout folder and you can initialize buttons in initAR function which is in mainactivity.

Step 1: Add the button in the camera_overlay.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/camera_overlay_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ProgressBar
style="#android:style/Widget.ProgressBar"
android:id="#+id/loading_indicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="18dp"
android:layout_marginTop="51dp"
android:text="Button" />
</RelativeLayout>
Step 2: Edit the ImageTargets.java class
private static final String LOGTAG = "ImageTargets";
private Button b1;
Step 3: Modify the initApplicationAR() function of ImageTargets.java class
private void initApplicationAR()
{
// Create OpenGL ES view:
int depthSize = 16;
int stencilSize = 0;
boolean translucent = Vuforia.requiresAlpha();
mGlView = new SampleApplicationGLView(this);
mGlView.init(translucent, depthSize, stencilSize);
mRenderer = new ImageTargetRenderer(this, vuforiaAppSession);
mRenderer.setTextures(mTextures);
mGlView.setRenderer(mRenderer);
b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
b1.setVisibility(View.GONE);
}
});
}
Now lay back and watch your button disappear on a click!

Although it's a long time since the post.. yet I found one article.. wherein you can have the desired thing..
Ref: https://medium.com/nosort/adding-views-on-top-of-unityplayer-in-unityplayeractivity-e76240799c82
Solution:
Step1: Make a custom layout XML file (vuforia_widget_screen.xml). For example, button has been added.
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/main_layout">
<FrameLayout
android:id="#+id/unity_player_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<Button
android:id="#+id/back_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="#null"
android:text="#string/welcome" />
</FrameLayout>
Step 2: Make following changes in the UnityPlayerActivity.java
Replace "setContentView(mUnityPlayer);" with
setContentView(R.layout.vuforia_widget_screen);
FrameLayout frameLayout = findViewById(R.id.unity_player_layout);
frameLayout.addView(mUnityPlayer.getView());
-> For anyone, who will face the issue in future. :)

How to setting listener for button inside the Crouton Toast and clear that Crouton Toast using that button?

I have an app, which shows toast below the actionbar. I'm using Crouton library for displaying toast. Here I'm placing custom layout for toast, that layout contains one textview and one button (for close option). So Toast appears with button. If I click that it should close the toast but nothing happens.. Below Code for this example. Any Help Appreciated
MainActivity.java
public class MainActivity extends SherlockActivity implements OnClickListener {
private View customToastView;
private TextView customToastMessageView;
private Button customToastCloseButton;
private Button doneButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
doneButton = (Button) findViewById(R.id.done_button);
customToastView = getLayoutInflater().inflate(R.layout.toast_custom_layout, null);
customToastMessageView = (TextView) customToastView.findViewById(R.id.messages);
customToastCloseButton = (Button) customToastView.findViewById(R.id.close_button);
customToastCloseButton.setOnClickListener(this);
doneButton.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.done_button:
Crouton.cancelAllCroutons();
customToastMessageView.setText("Message");
Crouton.show(this, customToastView);
break;
case R.id.close_button:
Crouton.cancelAllCroutons();
break;
}
}
}
toast_custom_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/messages"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="26dp"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="#+id/close_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="23dp"
android:text="Button" />
</RelativeLayout>
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="#+id/done_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="146dp"
android:text="Button" />
</RelativeLayout>

relativelayout makes my button stop working

when i use linearlayout everything works like its supposed except my button is at the top and not the bottom of the screen.
when i use relativelayout my button is on the bottom like its supposed to but only works for the first listview entry after that it stops working...
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<Button android:id="#+id/plus"
android:background="#drawable/selector"
android:layout_width="fill_parent"
android:layout_height="75dp"
android:layout_alignParentBottom="true"
/>
<ListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
</ListView>
<TextView android:id="#android:id/empty" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="#string/helptxt1"
/>
</RelativeLayout>
..
public void addListenerOnButton() {
final Context context = this;
button1 = (Button) findViewById(R.id.plus);
button1.setOnClickListener(new OnClickListener() {
// #Override
public void onClick(View arg0) {
createNote();
// Intent intent = new Intent(context, QuoteEdit.class);
// startActivity(intent);
}
});
}
private void createNote() {
Intent i = new Intent(this, QuoteEdit.class);
startActivityForResult(i, ACTIVITY_CREATE);
}

Your buttons wont work because when you use a Relative layout all the views/buttons are placed in the same location unless you place them above or below each other. Try doing this with your layout:
<Button
android:id="#+id/plus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
<ListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/plus" >
</ListView>
or you can add an onClick to your button:
<Button
android:id="#+id/plus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:onClick="myClickMethod" />
and in your code
public void myClickMethod(View view) {
createNote();
}

EditText Field Is Crashing My Android App

Hi all i have updated my post to show the full xml file, which will show if i am doing something wrong.
i implemented a custom dialog with an edit text field and it keeps crashing. I will
also like to access the values filled in the text field. Any idea where i am going wrong? Thanks.
Below is the offending/troublesome??? code
First i show the xml file which contains my layout for the alert dialog.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="wrap_content">
<ImageView android:id="#+id/ImageView01"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_centerHorizontal="true" />
<ScrollView android:id="#+id/ScrollView01"
android:layout_width="wrap_content" android:layout_below="#+id/ImageView01"
android:layout_height="200px">
<TextView android:text="#+id/TextView01" android:id="#+id/TextView01"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
<EditText
android:id="#+id/lastname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="blah"
/>
</ScrollView>
<Button android:id="#+id/Button01"
android:layout_below="#id/ScrollView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:text="Cancel" />
</RelativeLayout>
Then main activity file which implements
my button click events...etc.
.......
setContentView(R.layout.main);
//this button will show the dialog
Button button1main = (Button) findViewById(R.id.Button01main);
button1main.setOnClickListener(new View.OnClickListener() {
public void onClick(View OnClickListener) {
//set up dialog
final Dialog dialog = new Dialog(MoredialogActivity.this);
dialog.setContentView(R.layout.maindialog);
dialog.setTitle("This is my custom dialog box");
dialog.setCancelable(true);
TextView text = (TextView) dialog.findViewById(R.id.TextView01);
text.setText(R.string.lots_of_text);
//set up image view
ImageView img = (ImageView) dialog.findViewById(R.id.ImageView01);
img.setImageResource(R.drawable.icon);
//set up button
Button button = (Button) dialog.findViewById(R.id.Button01);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
dialog.dismiss();
//finish();
}
});
dialog.show();
}
});
}
}

You have two items in your ScrollView. According to the doc :
A ScrollView is a FrameLayout, meaning you should place one child in
it containing the entire contents to scroll; this child may itself be
a layout manager with a complex hierarchy of objects.
So you should had another layout, like a linear layout :
<ScrollView
android:id="#+id/ScrollView01"
android:layout_width="wrap_content"
android:layout_below="#+id/ImageView01"
android:layout_height="200px">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center">
<TextView
android:text="#+id/TextView01"
android:id="#+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<EditText
android:id="#+id/lastname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="blah" />
</LinearLayout>
</ScrollView>

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

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