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Re:Kayo-System Co.,Ltd.

2011 10 29


2011 10 29

https://dl-ssl.google.com/android/eclipse/


2011 10 29

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>


2011 10 29

�


2011 10 29

<resources>
<string name="hello">Hello World, HelloWorldActivity!</string>
<string name="app_name">HelloWorld</string>
</resources>


2011 10 29

package jp.ykmjuku.helloworld;

public final class R {
public static final class attr {
}
public static final class drawable {
public static final int icon=0x7f020000;
}
public static final class layout {
public static final int main=0x7f030000;
}
public static final class string {
public static final int app_name=0x7f040001;
public static final int hello=0x7f040000;
}
}


2011 10 29

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="jp.ykmjuku.helloworld"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />

<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".HelloWorldActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

</application>
</manifest>


2011 10 29

package jp.co.kayo.android.sample.activity;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}


2011 10 29

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:orientation="vertical" >

<TextView
android:text="@string/hello" />

</LinearLayout>


2011 10 29

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="jp.co.kayo.android.sample.activity"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="14" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name=".MainActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>


2011 10 29

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" >

<TextView
android:text="@string/hello" />

</LinearLayout>


2011 10 29

Button button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//
}
});


2011 10 29

Fragment fr = new MyFragment();
FragmentTransaction tr =
getSupportFragmentManager().beginTransaction();
tr.add(fr, "MyFragment");
tr.commit();


2011 10 29

public Fragment createFragment(int n){
MyFragment f = new MyFragment();
Bundle bundle = new Bundle();
bundle.putInt("num", n);
f.setArguments(bundle);
return f;
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(savedInstanceState!=null){
n = savedInstanceState.getInt("num");
}
else{
Bundle bundle = getArguments();
if(bundle!=null){
n = bundle.getInt("num");
}
}
}


2011 10 29

Fragment fr = new MyFragment(n++);
FragmentTransaction tr =
getSupportFragmentManager().beginTransaction();
tr.replace(R.id.frameLayout1, fr);
tr.addToBackStack("task");
tr.commit();


2011 10 29

Fragment f =
getSupportFragmentManager().
findFragmentByTag("tag");


2011 10 29

class MyAsyncTask extends AsyncTask<Void, Void, Void>{
Handler handler;
Context context;

@Override
protected Void doInBackground(Void... params) {
Cursor cur =
context.getContentResolver().query(
Media.EXTERNAL_CONTENT_URI,
null, null, null, null);
handler.sendMessage(handler.obtainMessage(0, cur));
return null;
}
}


2011 10 29

LoaderCallbacks<T>

getSupportLoaderManager().initLoader(
R.layout.main, bundle, this);


2011 10 29

getSupportLoaderManager().restartLoader(
R.layout.main, bundle, this);


2011 10 29

@Override
public void onDestroy() {
super.onDestroy();
getLoaderManager().destroyLoader(R.layout.main);
}


2011 10 29

LoaderCallbacks<T>
public static class MyLoaderFragment extends Fragment implements
LoaderCallbacks<Cursor>{
CursorAdapter adapter;

public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
return new CursorLoader(getActivity(),
Media.EXTERNAL_CONTENT_URI,
null, null, null, null);
}

public void onLoadFinished(Loader<Cursor> arg0, Cursor arg1) {
Cursor cur = adapter.swapCursor(arg1);
}

public void onLoaderReset(Loader<Cursor> arg0) {

}

}


2011 10 29

class ValueItem {
String name;
int age;
}


2011 10 29

public static class MyLoaderFragment2 extends Fragment implements
LoaderCallbacks<List<ValueItem>>{

public Loader<List<ValueItem>> onCreateLoader(int arg0, Bundle arg1) {
// TODO Auto-generated method stub
return null;
}

public void onLoadFinished(Loader<List<ValueItem>> arg0,
List<ValueItem> arg1) {

}

public void onLoaderReset(Loader<List<ValueItem>> arg0) {

}

}


2011 10 29

static class MyAsyncTaskLoader extends AsyncTaskLoader<List<ValueItem>>{

public MyAsyncTaskLoader(Context context) {
super(context);
}

@Override
public List<ValueItem> loadInBackground() {
List<ValueItem> list = new ArrayList<ValueItem>();
return list;
}
}

public Loader<List<ValueItem>> onCreateLoader(int arg0, Bundle arg1) {
MyAsyncTaskLoader l = new MyAsyncTaskLoader(getActivity());
l.forceLoad();
return l;
}


2011 10 29

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