Below code works fine, but it opens a new layout and shows the toast message. but i wanted it to show toast & popup menus on the current layout. I'm working on popup menu project, i want to show popup menu on same layout. Thanks in Advance.
MainMactivity.java
package com.example.twoact;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
Button b1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent openpopactivity = new Intent(MainActivity.this,
MainActivity2.class);
startActivity(openpopactivity);
}
});
}
}
MainActivity2.java
package com.example.twoact;
import android.widget.Toast;
import android.os.Bundle;
import android.os.Handler;
public class MainActivity2 extends MainActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
new Handler().postDelayed(new Runnable() {
public void run() {
Toast.makeText(getApplicationContext(), "ya am in",
Toast.LENGTH_SHORT).show();
}
}, 1000);
}
}
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.twoact.MainActivity"
tools:ignore="MergeRootFrame" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="142dp"
android:text="Button" />
</RelativeLayout>
You can use Popup menu and Popup window. in this you can use your custom layout so you can get your view as window in same activity.
Popup window will be good option because it is since API LEVEL 1
please refer this docs and example 1,example 2
And Popup Menu is since API LEVEL 11. so you have to manage for lower version
docs for Popup Menu and example
popup window
Related
I'm new to Android app.. I was trying to change the button color on first click and to change back to default on the next click and this will work no matter how many times user clicks...
Can anyone help me to understand this
Create global variable clickStatus
boolean clickStatus=true;
final Button running_app=(Button)findViewById(R.id.running_app);
running_app.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (clickStatus){
clickStatus=false;
running_app.setBackgroundColor(Color.parseColor("#3F51B5"));
}else {
clickStatus=true;
running_app.setBackgroundResource(android.R.drawable.btn_default);
}
}
});
Simple, Just give two different tags to button and keep toggling it on button click. That would help you to change background colour alternatively. Here is the complete code for it. Hope this helps.
Here is main.xml
<?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/btnClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Click Me" />
</LinearLayout>
Here is MainActivity.java
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private Button btnClick;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnClick = (Button) findViewById(R.id.btnClick);
btnClick.setOnClickListener(this);
btnClick.setTag("1");
btnClick.setBackgroundColor(Color.BLUE);
}
#Override
public void onClick(View view) {
if (view.getTag().equals("1")) {
view.setTag("0");
btnClick.setBackgroundColor(Color.RED);
} else {
view.setTag("1");
btnClick.setBackgroundColor(Color.BLUE);
}
}
}
hello I want put one button . when click that button from this page go to another page. I think I use Relative layout but I don't know exactly how to use it. please put complete code from "main.xml" and "activity" because I'm an amateur!!! thanks
Oh silverboy...
MainActivity:
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, SecondActivity.class));
}
});
}
}
activity_main.xml
<?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">
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go to second page"/>
</RelativeLayout>
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!");
}
}
Am trying to get the back button in my dialog to go back to the original screen. I don't know if I have all the imports that I need. Can someone tell me where I am going wrong?
Java code:
package my.dlog;
import android.app.Activity;
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.view.View.OnClickListener;
public class DlogActivity extends Activity {
/** Called when the activity is first created. */
Dialog dialog;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
dialog = new Dialog(this);
dialog.setContentView(R.layout.main2);
dialog.setTitle("This is my custom dialog box");
dialog.setCancelable(true);
Button b=(Button)findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener() {
public void onBackPressed() {
Intent intent = new Intent(DlogActivity.this, DlogActivity.class);
startActivity(intent);
finish();
}
public void onClick(View v) {
dialog.show();
}
});
}
}
XML:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:baselineAligned="false"
android:minHeight="400dp"
android:minWidth="300dp" android:background="#drawable/mint1">
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
<ImageView
android:layout_width="236dp"
android:layout_height="220dp"
android:layout_marginRight="100dp" android:background="#drawable/carsee"/>
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</RelativeLayout>
</LinearLayout>
b.setOnClickListener(new OnClickListener() {
public void onBackPressed() {
dialog.cancel();
// Simply Dismiss the dialog to make it close and return to back..
/*What you are using is not a valid construct */
}
Also make sure that button1 in in main layout as you have used findViewById(R.id.button1) directly for set content view
Well normally the back button works just without any help from us. If you take the
public void onBackPressed() {
Intent intent = new Intent(DlogActivity.this, DlogActivity.class);
startActivity(intent);
finish();
}
out, what happens when you press 'back'? If this is not what you want, then what do you wnat to happen? If there are no errors, I would think you have the required imports.
Cliff
I start a new activity when clicking on a button , but the content(ui components) of the new activity doesn't appear , why ??
button listener to start new activity
m_sendButton.setOnClickListener(
new OnClickListener(){
public void onClick(View view) {
Intent in = new Intent(context, SendMessageForm.class);
// i.putExtra("id","4");
context.startActivity(in);
//Toast toast = Toast.makeText(context, "Error. Please try again later", Toast.LENGTH_SHORT);
//toast.show();
} }
);
SendMessageForm.java
import android.app.Activity;
import android.os.Bundle;
public class SendMessageForm extends Activity {
public void onCreat(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.search_result_form);
}
}
search_result_form.xml (just for test)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/rootLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button android:text="Send" android:id="#+id/btnBacksds"
android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>
You have a typo in your onCreate method. The method name says onCreat - it's missing an 'e':
import android.app.Activity;
import android.os.Bundle;
public class SendMessageForm extends Activity {
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.search_result_form);
}
}
In general it's useful to use the #Override annotation to help you catch any mistakes such as this. If the parent class does not have a matching method signature then your IDE (at least Eclipse does this) will warn you or present an error.