Display height and width

DisplayMetrics metrics = new DisplayMetrics();
((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getMetrics(metrics);
int height = metrics.heightPixels;
int width = metrics.widthPixels;

How to Add Smiley/Emojis in Edittext?

How to Add Smiley/Emojis in Edittext?

Emoji.java :-


package com.android.emoji;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Html.ImageGetter;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Emoji extends Activity implements OnClickListener {
    EditText edttxtemoji;
    Button btnsubmit, btnselectemoji;
    TextView txtviewdisplay;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        edttxtemoji = (EditText) findViewById(R.id.edttxtemoji);
        btnsubmit = (Button) findViewById(R.id.btnok);
        btnsubmit.setOnClickListener(this);
        btnselectemoji = (Button) findViewById(R.id.btnselect);
        btnselectemoji.setOnClickListener(this);
        txtviewdisplay = (TextView) findViewById(R.id.txtviewdisplay);
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        if (v == btnsubmit) {
            txtviewdisplay.setText(edttxtemoji.getText());
        } else if (v == btnselectemoji) {
            Intent in = new Intent(this, Select_Emoji_Activity.class);
            startActivity(in);
        }
    }

    CharSequence cs;
    Custom_List_Emoji cstlistemoji;
    int index;

    @Override
    protected void onRestart() {
        // TODO Auto-generated method stub
        super.onRestart();

        cstlistemoji = new Custom_List_Emoji(this);
        @SuppressWarnings("static-access")
        SharedPreferences myPrefs = this.getSharedPreferences("myPrefs",
                this.MODE_WORLD_READABLE);
        index = myPrefs.getInt("key1", 0);
        System.out.println("Pref Data index is:- " + index);
        ImageGetter imageGetter = new ImageGetter() {
            public Drawable getDrawable(String source) {
                Drawable d = getResources().getDrawable(
                        cstlistemoji.images[index]);
                d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
                return d;
            }
        };
        cs = Html.fromHtml(
                "<img src='"
                        + getResources()
                                .getDrawable(cstlistemoji.images[index])
                        + "'/>", imageGetter, null);
        System.out.println("cs is:- " + cs);
        edttxtemoji.setText(cs);
    }
}


Select_Emoji_Activity.java :-


package com.android.emoji;

import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

public class Select_Emoji_Activity extends Activity implements OnItemClickListener{
    ListView lstviewemojis;
    Custom_List_Emoji cstlistemoji;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.emojis);
        lstviewemojis=(ListView)findViewById(R.id.lstviewemojis);
        lstviewemojis.setOnItemClickListener(this);
        cstlistemoji=new Custom_List_Emoji(this);
        lstviewemojis.setAdapter(cstlistemoji);
    }
    @Override
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        // TODO Auto-generated method stub
        SharedPreferences myPrefs = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE);
        SharedPreferences.Editor prefsEditor = myPrefs.edit();
        System.out.println("Emoji is:- " +arg2);
        prefsEditor.putInt("key1", arg2);
        prefsEditor.commit();
        finish();
    }
}

Custom_List_Emoji :-


package com.android.emoji;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class Custom_List_Emoji extends BaseAdapter {

    public Activity context;
    public LayoutInflater inflater;

    public Custom_List_Emoji(Activity context) {
        // TODO Auto-generated constructor stub
        this.context = context;
        this.inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return emojis.length;
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        String temp = emojis[position];
        return temp;
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    TextView txtview1;
    ImageView image;

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        if (convertView == null) {
            convertView = inflater.inflate(R.layout.custom_emojis, null);
            txtview1 = (TextView) convertView.findViewById(R.id.txtviewemojis);
            image = (ImageView) convertView.findViewById(R.id.imgviewemoji);
        }

        image.setImageResource(images[position]);
        txtview1.setText(emojis[position]);
        return convertView;
    }

    public final int[] images = new int[] { R.drawable.emo_im_happy,
            R.drawable.emo_im_sad, R.drawable.emo_im_winking,
            R.drawable.emo_im_tongue_sticking_out, R.drawable.emo_im_surprised,
            R.drawable.emo_im_kissing, R.drawable.emo_im_yelling,
            R.drawable.emo_im_cool, R.drawable.emo_im_money_mouth,
            R.drawable.emo_im_foot_in_mouth, R.drawable.emo_im_embarrassed,
            R.drawable.emo_im_angel, R.drawable.emo_im_undecided,
            R.drawable.emo_im_crying, R.drawable.emo_im_lips_are_sealed,
            R.drawable.emo_im_laughing, R.drawable.emo_im_wtf };
    public final String[] _strEmoticonLabels = new String[] { "Happy", "Sad",
            "Winking", "Tongue sticking out", "Surprised", "Kissing",
            "Yelling", "Cool", "Money Mouth", "Foot in mouth", "Embarrased",
            "Angel", "Undecided", "Crying", "Lips are sealed", "Laughing",
            "Confused" };
    public final String[] emojis = new String[] { ":-)", ":-(", ";-)", ":-P",
            "=-O", ":-*", ":O", "B-)", ":-$", ":-!", ":-[", "O:-)", ":-\\",
            ":'(", ":-X", ":-D", "o_O" };

}




Main.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:layout_width="wrap_content" android:text="Dipak"
        android:layout_height="wrap_content" android:id="@+id/txtviewdisplay" />
    <EditText android:layout_width="fill_parent" android:layout_below="@+id/txtviewdisplay"
        android:layout_height="wrap_content" android:id="@+id/edttxtemoji" />
    <Button android:layout_width="wrap_content" android:layout_below="@+id/edttxtemoji"
        android:layout_height="wrap_content" android:id="@+id/btnok"
        android:text="Submit" />
    <Button android:layout_width="wrap_content" android:layout_below="@+id/edttxtemoji"
        android:layout_height="wrap_content" android:id="@+id/btnselect"
        android:text="select Emojis" android:layout_toRightOf="@+id/btnok"/>
</RelativeLayout>


emojis.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">
    <ListView android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:id="@+id/lstviewemojis" />
</RelativeLayout>


custom_emojis.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">
    <RelativeLayout android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:id="@+id/mRlayout1">
        <ImageView android:layout_width="wrap_content" android:id="@+id/imgviewemoji"
            android:layout_height="wrap_content" android:src="@drawable/icon"
            android:layout_centerVertical="true" android:layout_alignParentLeft="true"
            android:layout_marginLeft="10dip" />
        <TextView android:layout_width="wrap_content"
            android:layout_centerVertical="true" android:layout_marginRight="10dip"
            android:layout_height="wrap_content" android:text="Emoji"
            android:layout_alignParentRight="true" android:id="@+id/txtviewemojis" />
    </RelativeLayout>
</RelativeLayout>

Displaying Chart On Android

In this tutorial, we are going to learn, how to display chart or bar graphs on android for your statistical data.

To begin with the tutorial, lets create new project.

FILE–>NEW–>Android Project

Now right click on the project in Package explorer and go to Properties.

Properties–>Java Build Path–>Libraries–>Add external JARs..

Once your API is linked, you are ready now for coding your program. Here is the link where from you can download the API http://www.kidroid.com/kichart/

Now lets code the program. This is the complete code of android chart sample.

package com.google.android.chartView;
import com.kidroid.kichart.model.Aitem;

import com.kidroid.kichart.view.LineView;

import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;
public class chartView extends Activity {

/** Called when the activity is first created. */

LineView lv;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

String xaxis[]=new String[4];

xaxis[0]=”2006″;

xaxis[1]=”2007″;

xaxis[2]=”2008″;

xaxis[3]=”2009″;

float line1[]=new float[4];

line1[0]=120;

line1[1]=240;

line1[2]=500;

line1[3]=100;

float line2[]=new float[4];

line2[0]=100;

line2[1]=650;

line2[2]=700;

line2[3]=300;

float line3[]=new float[4];

line3[0]=50;

line3[1]=180;

line3[2]=360;

line3[3]=900;

Aitem items[]=new Aitem[3];

items[0]= new Aitem(Color.BLUE,”pauOut”,line1);

items[1]= new Aitem(Color.GREEN,”pauOut”,line2);

items[2]= new Aitem(Color.YELLOW,”pauOut”,line3);

lv=new LineView(this);

lv.setTitle(“Yearly Budget”);

lv.setAxisValueX(xaxis);

lv.setItems(items);

setContentView(lv);

}

}

here is the final view of the chart module. After this demo, you should get stuff like this.

Shake Animation Example

This example let you shake or animation your view on some event described.

Algorithm:

1.) Create a new project by File-> New -> Android Project name it ShakeAnimationExample.

2.) You will see some default code into your main.xml, strings.xml and android manifest file.

3.) Write following into main.xml file:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:padding="10dip"     android:layout_width="fill_parent"     android:layout_height="wrap_content">           <TextView         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_marginBottom="10dip"         android:text="Please enter your password:"     />           <EditText android:id="@+id/pw"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:clickable="true"         android:singleLine="true"         android:password="true"     />       <Button android:id="@+id/login"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Login"     />   </LinearLayout>

4.) Create and Write following into anim/shake.xml:

1 2 3

<translate xmlns:android="http://schemas.android.com/apk/res/android"     android:fromXDelta="0" android:toXDelta="10" android:duration="1000"     android:interpolator="@anim/cycle_7" />

5.) Create and Write following into anim/cycle_7.xml:

1	<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android" android:cycles="7" />

Steps:

1.) Create a project named ShakeAnimationExample and set the information as stated in the image.

Build Target: Android 1.6
Application Name: ShakeAnimationExample
Package Name: com.example. ShakeAnimation
Activity Name: ShakeAnimationExample
Min SDK Version: 4

2.) Open ShakeAnimationExample.java file and write following code there:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

package com.example.ShakeAnimation;   import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.Toast;   public class ShakeAnimation extends Activity implements View.OnClickListener {       @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);           View loginButton = findViewById(R.id.login);         loginButton.setOnClickListener(this);     }       public void onClick(View v) {         Animation shake = AnimationUtils.loadAnimation(this, R.anim.shake);         findViewById(R.id.pw).startAnimation(shake);         Toast.makeText(this, "Wrong Password", Toast.LENGTH_SHORT).show();     }   }

3.) Compile and build the project.

4.) Run on 1.6 simulator for the output.