Fragment在xml中使用

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Demo下载地址：http://download.csdn.net/detail/baopengjian/9336883

Fragment在xml中使用，Fragment之间通信

sss

（1）FirstMethodActivity

public class FirstMethodActivity extends FragmentActivity {

@Override

protected void onCreate(Bundle arg0) {

super.onCreate(arg0);

setContentView(R.layout.activity_first);

}

activity_first.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"

tools:context="com.bpj.fragmentdemo.MainActivity" >

<fragment

android:id="@+id/fg1"

android:name="com.bpj.fragmentdemo.fragment.FirstMethodFragment1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:text="@string/first_method" />

<fragment

android:layout_below="@id/fg1"

android:id="@+id/fg2"

android:name="com.bpj.fragmentdemo.fragment.FirstMethodFragment2"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/first_method" />

</RelativeLayout>

(2)Fragment2:

public class FirstMethodFragment2 extends Fragment{

private Context context;

private TextView tv_fragment1,tv_fragment2,tv_fragment3;

private String versionName,VersionCode;

private int screenWidth;

private int screenHeight;

private File sdCardDir;

private long totalSpace;

private String totalSize,usableSize;

@Override

public View onCreateView(LayoutInflater inflater,ViewGroup container, Bundle savedInstanceState) {

View view = inflater.inflate(R.layout.fragment_first2, null);

tv_fragment1 = (TextView) view.findViewById(R.id.tv_fragment1);

tv_fragment2 = (TextView) view.findViewById(R.id.tv_fragment2);

tv_fragment3 = (TextView) view.findViewById(R.id.tv_fragment3);

return view;

}

@Override

public void onActivityCreated( Bundle savedInstanceState) {

super.onActivityCreated(savedInstanceState);

context = getActivity();

try {

PackageInfo info = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);

versionName = info.versionName;

VersionCode = info.versionCode+"";

} catch (NameNotFoundException e) {

e.printStackTrace();

}

DisplayMetrics metrics = new DisplayMetrics();

getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);

screenWidth = metrics.widthPixels;

screenHeight = metrics.heightPixels;

if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){

sdCardDir = Environment.getExternalStorageDirectory();

totalSpace = sdCardDir.getTotalSpace();

totalSize = Formatter.formatFileSize(context, totalSpace);

usableSize = Formatter.formatFileSize(context, sdCardDir.getUsableSpace());

}

public void setText(){

tv_fragment1.setText("versionName:"+versionName+";versionCode:"+VersionCode);

tv_fragment2.setText("screenWidth:"+screenWidth+";screenHeight:"+screenHeight);

tv_fragment3.setText("sdDir:"+sdCardDir.getPath()+"\n"+"totalSize="+totalSize+";usableSize="+usableSize);

}

public void clear(){

tv_fragment1.setText(null);

tv_fragment2.setText(null);

tv_fragment3.setText(null);

}

fragment_first2.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="600dp"

android:background="@android:color/holo_blue_light"

tools:context="com.bpj.fragmentdemo.MainActivity" >

<TextView

android:id="@+id/tv_fragment1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="20dp"

android:layout_marginTop="14dp"

android:text="Fragment2_1" />

<TextView

android:id="@+id/tv_fragment3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/tv_fragment2"

android:layout_below="@+id/tv_fragment2"

android:layout_marginTop="105dp"

android:text="Fragment2_3" />

<TextView

android:id="@+id/tv_fragment2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignLeft="@+id/tv_fragment1"

android:layout_below="@+id/tv_fragment1"

android:layout_marginTop="100dp"

android:text="Fragment2_2" />

</RelativeLayout>

(3)Fragment1:

public class FirstMethodFragment1 extends Fragment implements OnClickListener {

private TextView tv1, tv2;

private FirstMethodFragment2 mFragment2;

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,

Bundle savedInstanceState) {

View view = inflater.inflate(R.layout.fragment_first1, null);

tv1 = (TextView) view.findViewById(R.id.tv1);

tv1.setOnClickListener(this);

tv2 = (TextView) view.findViewById(R.id.tv2);

tv2.setOnClickListener(this);

return view;

}

@Override

public void onActivityCreated( Bundle savedInstanceState) {

super.onActivityCreated(savedInstanceState);

mFragment2 = (FirstMethodFragment2) getActivity().getSupportFragmentManager().findFragmentById(R.id.fg2);

}

@Override

public void onClick(View view) {

switch (view.getId()) {

case R.id.tv1:

mFragment2.setText();

break;

case R.id.tv2:

mFragment2.clear();

break;

}

<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"

tools:context="com.bpj.fragmentdemo.MainActivity" >

<TextView

android:id="@+id/tv1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="18dp"

android:layout_marginTop="42dp"

android:text="Fragment1" />

<TextView

android:id="@+id/tv2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignBottom="@+id/tv1"

android:layout_marginLeft="23dp"

android:layout_toRightOf="@+id/tv1"

android:text="Fragment2" />

</RelativeLayout>

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