Posted by Sushant on May 21, 2012, filed in: Android Apps, Android Development, Android Interface Builder, Android Programming Tutorials, ANDROID TUTORIAL 0
22/08/2012
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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"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 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"> </FrameLayout> <Button android:id="@+id/new_fragment" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0" android:text="New fragment"> <requestFocus /> </Button> </LinearLayout>
3.)  Create and write following into fragment.xml:
<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/text" 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