I have developed an app on eclipse that sets the wallpaper of the phone .The app is working fine but the wallpaper is blurred.It is an integral part of my project.I can't continue further without resolving this.
Here is the code
MainActivity.java
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button =(Button) findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent("com.example.backgroundapp.bakapp"));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
The backapp java file
{
bakapp.java
public class bakapp extends Activity implements OnClickListener {
ImageView display;
int tophone;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
// to our activity to cover the whole screen
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.back);
Button but = (Button) findViewById(R.id.setwallpaper);
tophone = R.drawable.image4;
but.setOnClickListener(this);
display = (ImageView) findViewById(R.id.ivdisplay);
ImageView image1 = (ImageView) findViewById(R.id.IVimage1);
ImageView image2 = (ImageView) findViewById(R.id.IVimage2);
ImageView image3 = (ImageView) findViewById(R.id.IVimage3);
ImageView image4 = (ImageView) findViewById(R.id.IVimage4);
ImageView image5 = (ImageView) findViewById(R.id.IVimage5);
image1.setOnClickListener(this);
image2.setOnClickListener(this);
image3.setOnClickListener(this);
image4.setOnClickListener(this);
image5.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast var;
switch (v.getId()) {
case R.id.IVimage1:
display.setImageResource(R.drawable.n1);
var = Toast.makeText(bakapp.this, "image changed",
Toast.LENGTH_SHORT);
var.show();
tophone = R.drawable.n1;
break;
case R.id.IVimage2:
display.setImageResource(R.drawable.n2);
var = Toast.makeText(bakapp.this, "image changed",
Toast.LENGTH_SHORT);
var.show();
tophone = R.drawable.n3;
break;
case R.id.IVimage3:
display.setImageResource(R.drawable.n4);
var = Toast.makeText(bakapp.this, "image changed",
Toast.LENGTH_SHORT);
var.show();
tophone = R.drawable.n4;
break;
case R.id.IVimage4:
display.setImageResource(R.drawable.n5);
var = Toast.makeText(bakapp.this, "image changed",
Toast.LENGTH_SHORT);
var.show();
tophone = R.drawable.n5;
break;
case R.id.IVimage5:
display.setImageResource(R.drawable.n6);
var = Toast.makeText(bakapp.this, "image changed",
Toast.LENGTH_SHORT);
var.show();
tophone = R.drawable.n6;
break;
case R.id.setwallpaper:
// to set a background we need to use bitmap
InputStream is = getResources().openRawResource(tophone);
// to phone is a variable that is updated everytime we click on an
// ImageView to that imageview resource and by clicking the button
// we set the phone background to that image.
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 8;
Bitmap bm = BitmapFactory.decodeStream(is,null,options);
// decode inputstream is
try {
getApplicationContext().setWallpaper(bm);
// to set the wallpaper of the phone background we need to ask
// permission from the user so add permission of background from
// manifest file
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
var = Toast.makeText(bakapp.this, "Wallpaper image changed",
Toast.LENGTH_SHORT);
var.show();
break;
}
}
}
The layouts are as follows
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"
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" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Application to Change background picture of device"
android:textSize="30dp" />
<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="96dp"
android:text="Click to launch" />
</RelativeLayout>
Layout for bakapp.java
back.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" >
<ImageView
android:id="@+id/ivdisplay"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_gravity="center"
android:src="@drawable/image4" />
"
<Button
android:id="@+id/setwallpaper"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="set image background" >
</Button>
<HorizontalScrollView
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_gravity="center" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/IVimage1"
android:layout_width="125dp"
android:layout_height="125dp"
android:padding="15dp"
android:src="@drawable/n1" />
<ImageView
android:id="@+id/IVimage2"
android:layout_width="125dp"
android:layout_height="125dp"
android:padding="15dp"
android:src="@drawable/n2" />
<ImageView
android:id="@+id/IVimage3"
android:layout_width="125dp"
android:layout_height="125dp"
android:padding="15dp"
android:src="@drawable/n3" />
<ImageView
android:id="@+id/IVimage4"
android:layout_width="125dp"
android:layout_height="125dp"
android:padding="15dp"
android:src="@drawable/n4" />
<ImageView
android:id="@+id/IVimage5"
android:layout_width="125dp"
android:layout_height="125dp"
android:padding="15dp"
android:src="@drawable/n5" />
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
