Fragment Example In Android

This example shows Arc effects of graphics in android.

Algorithm:

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

2.) Write following into main.xml:

<!--?xml version="1.0" encoding="utf-8"?-->
android:orientation="vertical" android:padding="4dip"
android:gravity="center_horizontal"
android:layout_width="match_parent" android:layout_height="match_parent">

<FrameLayout
android:id="@+id/simple_fragment"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1">

<button> android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="0"
android:text="New fragment">

</button>

3.) Create and write following into fragment.xml:

<!--?xml version="1.0" encoding="utf-8"?-->
android:layout_width="match_parent" android:layout_height="match_parent"
android:gravity="center_vertical|center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="FragmentExample"/>

4.) Create animator folder and write fragment left,right, entry and exit animation.

5.) Run for output.

Steps:

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

Build Target: Android 4.0

Application Name: FragmentExample

Package Name: com. example. FragmentExample

Activity Name: FragmentExampleActivity

Min SDK Version: 14

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

package com.example.FragmentExample;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class FragmentExampleActivity extends Activity {
/** Called when the activity is first created. */
int mStackLevel = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

// Watch for button clicks.
Button button = (Button)findViewById(R.id.new_fragment);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
addFragmentToStack();
}
});

if (savedInstanceState == null) {
Fragment newFragment = CountingFragment.newInstance(mStackLevel);
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.add(R.id.simple_fragment, newFragment).commit();
} else {
mStackLevel = savedInstanceState.getInt("level");
}
}

@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("level", mStackLevel);
}

void addFragmentToStack() {
mStackLevel++;
Fragment newFragment = CountingFragment.newInstance(mStackLevel);
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.setCustomAnimations(R.animator.fragment_slide_left_enter,
R.animator.fragment_slide_left_exit,
R.animator.fragment_slide_right_enter,
R.animator.fragment_slide_right_exit);
ft.replace(R.id.simple_fragment, newFragment);
ft.addToBackStack(null);
ft.commit();
}

public static class CountingFragment extends Fragment {
int mNum;

static CountingFragment newInstance(int num) {
CountingFragment f = new CountingFragment();
Bundle args = new Bundle();
args.putInt("num", num);
f.setArguments(args);

return f;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment, container, false);
View tv = v.findViewById(R.id.text);
((TextView)tv).setText("Hello. This is fragment example #" + mNum);
tv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.gallery_thumb));
return v;
}
}
}

3.) Compile and build the project.

Output