Develop Reference

EditText change setError text position

So so what im trying to implement has two parts
One im giving my edittext the passwordToggle for which im using
android.support.design.widget TextInputLayout+TextInputEditText
So this is how my edittext looks like
Part two is i want to add validation and set appropriate error message.
I need the error message to be shown as follows
My layout code is as follows
<android.support.design.widget.TextInputLayout
    style="#style/editTextBold"
    android:id="#+id/input_pwd_parent"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:hintAnimationEnabled="false"
    app:hintEnabled="false"
    app:passwordToggleEnabled="true">
    <android.support.design.widget.TextInputEditText
        android:id="#+id/input_pwd"
        style="#style/editTextBold"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#android:color/transparent"
        android:ems="10"
        android:hint="#string/hint_pwd"
        android:inputType="textPassword"
        android:padding="10dp" />
</android.support.design.widget.TextInputLayout>
So what i want to know is
1.How do i hide/unhide the password toggle icon in the edittext via code?
2.Also how do i make the setError message appear in place of the passwordToggle icon(once i hide it via code)

Ended up creating a custom view
The component can be found here
https://github.com/vnh1991/CustomValidatorEditText
Import the lib project as a module ,
in your layout create a container
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context="com.v2dev.customedittextdemo.MainActivity">
<LinearLayout
android:id="#+id/llContainer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:orientation="vertical"></LinearLayout>
<Button
android:id="#+id/btnValidate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_below="#+id/llContainer"
android:padding="10dp"
android:text="Validate" />
</RelativeLayout>
And in your activity load the component into the container
package com.v2dev.customedittextdemo;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;
import com.v_sQr_dev.customvalidatoredittext.CustomEdittext;
public class MainActivity extends AppCompatActivity {
private LinearLayout llContainer;
private Button btnValidate;
private CustomEdittext inputPwd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
llContainer = (LinearLayout) findViewById(R.id.llContainer);
btnValidate = (Button) findViewById(R.id.btnValidate);
inputPwd = new CustomEdittext(llContainer, this);
inputPwd.setHint("PASSWORD");
btnValidate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(inputPwd.validate()){
Toast.makeText(MainActivity.this,"Input Valid",Toast.LENGTH_SHORT).show();
}
}
});
}
}

Android Google Map API V2 - Buttons above fragment

I have managed to get a map to show on the screen. I am trying to create buttons above the map and then add actions to this. E.g. the button will change the location of the map. I am basically trying to adapt my code to this: https://www.youtube.com/watch?v=awX5T-EwLPc. However, I am using "extends Fragment Activity" which messes everything up.
My problem: I cannot create a button above the map, it is placed inside the map. I am trying to create a button above the map, and assign code so I can move to a location on the map etc. Here is my code:
MainActivity.java
package com.example.theapp;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends FragmentActivity implements OnClickListener
{
Button button;
TextView text;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=(Button)findViewById(R.id.button1);
text=(TextView)findViewById(R.id.textView1);
}
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
text.setText("The button worked!");
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<fragment
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/map"
android:layout_alignTop="#+id/map"
android:text="Button" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/button1"
android:layout_alignBottom="#+id/button1"
android:layout_alignRight="#+id/map"
android:layout_marginRight="39dp"
android:text="TextView" />
</RelativeLayout>
From the code, my app displays a button on the map and a text view. When you click the button, its meant to change the text, but it doesn't do anything. I have researched tutorials and by the looks of it, I will have to create multiple fragments?
Question: How would I be able to create a button on that page, that will then pin point the user on the map?
Thank you in advance.

You are not setting any functionality to the Button... You should use
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
text.setText("that's how you do it!");
}
});

You need not to worry about "FragmentActivity" until and unless you use fragment class.
Just use this as normal Activity. it will work well.
package com.example.theapp;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends FragmentActivity implements OnClickListener
{
Button button;
TextView text;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=(Button)findViewById(R.id.button1);
button.setOnClickListener(this);
text=(TextView)findViewById(R.id.textView1);
}
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
text.setText("The button worked!");
}
}

A base Activity holding a button

In my application I want to add a button at a unique position doing the same function in all activities, so instead of adding the same code to all activities, I thought of making a base activity, and here it is.
mport android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.Toast;
public abstract class DefaultActivity extends Activity{
ImageButton b;
#Override
public void onCreate(Bundle bundle)
{
super.onCreate(bundle);
setContentView(R.layout.default_activity);
b = (ImageButton)findViewById(R.id.imageButton1);
b.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "ana fel base activity", Toast.LENGTH_LONG).show();
}
});
}
}
But the button doesnt appear in the other activities although I made other activities extend DefaultActivity. So is there a way to make this happen? Thanks alot.
P.S: I don't want to use the actionBar.

If your other activities call setContentView(...) with other layouts, then those layouts are going to be shown. If those layouts don't have your ImageButton, then you won't have an ImageButton on screen (layouts won't "nest" by calling setContentView() in both the Activity and it's superclass implementation). One solution is to use the <include> tag in your other layouts and have another layout file with just the ImageButton like so:
res/layout/image_button.xml
<ImageButton xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
...
/>
res/layout/activity_main
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<!-- more views ... -->
<include android:layout="#layout/image_button" />
</LinearLayout>

How to make android buttons switch different XML layouts?

I just started some android programming recently and I am creating a small project app.
I have a few different XML Layout files and want my button to go to that layout. However, when I press the button on the emulator I get this message "Unfortunately "MyApp" Has stopped".
Here is my Main Activity Class:
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Shows the Activities screen.
Button Button1=(Button)findViewById(R.id.Button1);
Button1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(MainActivity.this,ActivityList.class);
startActivity(i);
}
});
}
This is my XML CODE for the Button:
android:id="#+id/Button1"
android:layout_width="300dp"
android:layout_height="55dp"
android:layout_alignLeft="#+id/Menutxt"
android:layout_below="#+id/Menutxt"
android:layout_marginTop="20dp"
android:gravity="center"
android:text="#string/Choose_Activity"
android:textColor="#ffffffff"
android:textSize="25sp"
android:typeface="serif"
I was wondering if anyone could help me out here, been trying to do this for a few hours and cannot get past it. Thanks.

add this to the layout of the activity that you wish to open. it should go at the top: tools:context=".activity" >
e.g.
<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"
android:orientation="horizontal"
tools:context=".activity" >
replace "activity" with the name of your activity

You did not show us your ActivityList.class , maybe you have created and extends Activity, but make sure that in your AndroidManifest.xml has this code:
activity android:name=".ActivityList"

Basic ImageButton onClick event not firing - surely something simple?

I'm trying to get a simple onClick to fire from an ImageButton - it seems like a simple enough task, but I'm obviously missing something here.
Here is my java file:
package com.jlbeard.android.testapp;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.Toast;
public class testapp extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//handle the button press
ImageButton mainButton = (ImageButton) findViewById(R.id.mainButton);
mainButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//show message
Toast.makeText(testapp.this, "Button Pressed", Toast.LENGTH_LONG);
}
});
}
}
Here is my layout file:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:id="#+id/whereToEat"
android:src="#drawable/where_to_eat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="8px"
/>
<ImageButton
android:id="#+id/mainButton"
android:src="#drawable/main_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:background="#null"
android:clickable="true"
android:onClick="mainButtonClick"
/>
</RelativeLayout>
It seems to me that I'm missing something simple... but can't seem to figure it out. Thanks!

You didn't run show() method on Toast object. Very common mistake :-)

You also might have a problem due to the manifest setting onClick
android:onClick="mainButtonClick"
If mainButtonClick exists on post 1.5 devices it may be called instead, overriding the one you're setting in code

In my case, the imageButton was displayed behind a list. Because the list was empty, the ImageButton was seen but onClick was never fired.
Adding android:elevation="5dp" in the screen xml solve my problem
Note that if I use Button instead of ImageButton, elevation is not required.