I want to create an activity such as mentioned in photo...
as soon as I press the maximize button I want it to become full screen for the activity and part 1 become minimize, and again when I press the restore button I want it to become in a first state: to be able to see part 1 and part 2 ...
I think if we put two layouts it is possible? Isn't it? Please refer me to a resource to help me about this, or show me the code to achieve a solution.
Part one and two should be in their own layout. After, play with the visilibity property of each layout. Specifically to hide any view without it continues to occupy its space, use the value gone for the visibility property.
Ok, here I go. Below you have a complete example of how to hide/show grouped views.
main.xml
<RelativeLayout 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" >
<LinearLayout
android:id="#+id/viewsContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextBox One" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="TextBox Two" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="TextBox Three" />
</LinearLayout>
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Hide" />
</RelativeLayout>
Activity
public class MyActivity extends Activity implements OnClickListener {
private boolean viewGroupIsVisible = true;
private View mViewGroup;
private Button mButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mViewGroup = findViewById(R.id.viewsContainer);
mButton = findViewById(R.id.button);
mButton.setOnClickListener(this);
}
#Override
public void onClick(View button) {
if (viewGroupIsVisible) {
mViewGroup.setVisibility(View.GONE);
mButton.setText("Show");
} else {
mViewGroup.setVisibility(View.VISIBLE);
mButton.setText("Hide");
}
viewGroupIsVisible = !viewGroupIsVisible;
}
I hope this helps ;)
There is a bit simplified solution, than Diego Palomar produced, without using additional variable. I'll take his code to show:
public class MyActivity extends Activity implements OnClickListener {
private View mViewGroup;
private Button mButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mViewGroup = findViewById(R.id.viewsContainer);
mButton = findViewById(R.id.button);
mButton.setOnClickListener(this);
}
#Override
public void onClick(View button) {
if (mViewGroup.getVisibility() == View.VISIBLE) {
mViewGroup.setVisibility(View.GONE);
mButton.setText("Show");
} else {
mViewGroup.setVisibility(View.VISIBLE);
mButton.setText("Hide");
}
}
Related
I given Long Click on Linear layout.Code is given below .Its working on Many devices.but not working on few devices Like Samsung Galaxy Tab E, SM-T561 .
activity_main layout,
<LinearLayout
android:id="#+id/ll_accept"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5"
android:gravity="center">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="10dp"
android:background="#drawable/ic_accept_24dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="#string/new_accept"
android:textColor="#color/new_accept_color"
android:textSize="#dimen/new_job_accept_reject_txt_size" />
</LinearLayout>
MainActivity() class,
public class MainActivity extends AppCompatActivity implements View.OnLongClickListener {
...........
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
.....................
llAccept = (LinearLayout) findViewById(R.id.ll_accept);
llAccept.setOnLongClickListener(this);
......................
}
#Override
public boolean onLongClick(View v) {
switch (v.getId()) {
case R.id.ll_accept:
//do your need
break;
}
}
}
longClicklistener need to return boolean, false if a click listener has to still execute after the long click and true if there are no further actions needed
Another solution could be adding clickable, focusable and other attributes like those to the LinearLayout.
I'm trying to make a simple game that select a value from item of Gridview. But i want that value just can clickable after press Play Button.We can't click in anywhere if did not press Play Button. How can i do that?
What you can do is to change the clickable property of your grid view
and then in the button click listener just set the clickable property to true
so your code should look like the following:
let's assume that this is your view:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="50dp" />
<GridView
android:id="#+id/grid"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="false" />
</LinearLayout>
your activity should contain the following code:
public class MainActivity extends AppCompatActivity {
private Button mButton;
private GridView mGridView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mGridView = (GridView) findViewById(R.id.grid);
mButton = (Button) findViewById(R.id.button);
// if you want to do it with setEnable
mGridView.setEnabled(false);
mButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mGridView.setClickable(true);
// if you want to toggle then you can use the following code:
// mGridView.setClickable(!mGridView.isClickable());
// you can also change the setEnable property and not the clickable
mGridView.setEnabled(true);
}
});
}
}
Hello this is my xml file
<RelativeLayout
android:id="#+id/tutorialBox"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="15dip"
android:paddingBottom="15dip">
<Button
android:id="#+id/closeBen"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/CloseBenny"
android:layout_alignBottom="#+id/bennybox"
android:layout_alignEnd="#+id/chatbub" />
</RelativeLayout>
i have made an on click listener for it
final Button closeBt = (Button) findViewById(R.id.closeBen);
closeBt.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
closeBt.setText("Im a button");
}
});
for some reason when i click this button nothing happens it doesnt look like it has been clicked.
when i took the button out of the realtive layout everything worked fine
any suggestions?
Instead of this add onClick attribute to the button tag in xml.
<Button
android:id="#+id/closeBen"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/CloseBenny"
android:onClick = "close_clicked"
android:layout_alignBottom="#+id/bennybox"
android:layout_alignEnd="#+id/chatbub" />
Then in Main Activity just make a new method like this.
public void close_clicked (View v){
// Your code
}
No need to add on click listner.
Your RelativeLayout does not look good, is it your main container? Maybe try it this way
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin">
<Button
android:id="#+id/closeBen"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/CloseBenny"
android:layout_alignBottom="#+id/bennybox"
android:layout_alignEnd="#+id/chatbub" />
</RelativeLayout>
And a good practice is to declare your widgets globally then instantiate them in theOnCreate
public class Foo extends AppCompatActivity {
private Button closeBenny;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
closeBenny = (Button)findViewById(R.id.closeBen);
closeBenny.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
closeBenny.setText("Im a button");
}
});
}
}
Well what i wanted to do was create an initial layout which will have a toggle button and on clicking the toggle but it should make a frame visible which will have a few buttons or textviews.
Does anybody know how to do this in Android 2.2??
You can use the visibility attribute on a view to control whether it is visible or not. Here's a small example that should do what you're looking for.
The main Activity:
public class DynamicLayoutTestActivity extends Activity {
private ToggleButton toggleButton;
private View possiblyHiddenView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
toggleButton = (ToggleButton) findViewById(R.id.toggleButton);
possiblyHiddenView = (View) findViewById(R.id.possiblyHiddenView);
toggleButton.setOnCheckedChangeListener(toggleButtonOnCheckedChangeListener);
}
private final CompoundButton.OnCheckedChangeListener toggleButtonOnCheckedChangeListener
= new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
possiblyHiddenView.setVisibility(View.VISIBLE);
} else {
possiblyHiddenView.setVisibility(View.INVISIBLE);
}
}
};
}
The layout file, main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ToggleButton
android:id="#+id/toggleButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textOff="Show"
android:textOn="Hide" />
<LinearLayout
android:id="#+id/possiblyHiddenView"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="invisible"
>
<TextView
android:text="Stuff that could be hidden."
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
If you don't want the hidden view to take up any space, use visibility gone instead of invisible.
Hope this helps!
If you're developing for Android 3.0+, look into fragments.
How to create radio button in radioGroup in file layout without knowing exactly count
Dose anyone has any ideas?
I request you to say thing clearly,but as i got ,you want many number of radio Button,
Take a loop and create dynamic RadioButton add these button to Radio Group
May be this is of any help;
public class RadDemoActivity extends Activity {
private RadioGroup radGroup;
private Button addButton;
private RadioButton radButton;
private static int no;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
no=0;
doInflateItems();
setAddButton();
}
private void doInflateItems() {
radGroup = (RadioGroup) findViewById(R.id.radGroup);
addButton = (Button) findViewById(R.id.addRad);
}
private void setAddButton() {
addButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
radButton = new RadioButton(getApplicationContext());
radButton.setText("Option " + no++);
radGroup.addView(radButton);
}
});
}
}
XML layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button android:id="#+id/addRad" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Add" />
<ScrollView android:id="#+id/vScroll" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<RadioGroup android:id="#+id/radGroup"
android:layout_width="wrap_content" android:layout_height="wrap_content" />
</ScrollView>
</LinearLayout>
This code is adding radio buttons from a button click, you can do the same from a loop if you want to add multiple buttons at once. Hope this helps.