Android(安卓)重用Layout Common action

<?xml version="1.0" encoding="utf-8"?><LinearLayout android:id="@+id/LinearLayout01"android:layout_width="fill_parent" android:layout_height="fill_parent"xmlns:android="http://schemas.android.com/apk/res/android"><Button android:layout_width="wrap_content"android:layout_height="wrap_content" android:id="@+id/Button11"android:text="Activity 1"></Button><Button android:layout_width="wrap_content"android:layout_height="wrap_content" android:id="@+id/Button12"android:text=" Activity 2   "></Button></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/RelativeLayout01"android:layout_width="fill_parent" android:layout_height="fill_parent"xmlns:android="http://schemas.android.com/apk/res/android"><TextView android:id="@+id/TextView01" android:layout_width="wrap_content"android:layout_height="wrap_content" android:background="#ffffff"android:text="Activity -- 1          "></TextView><RelativeLayout android:id="@+id/RelativeLayout02"android:layout_width="wrap_content" android:layout_height="wrap_content"android:layout_centerInParent="true"></RelativeLayout><com.farhan.masterLayout.Footerandroid:id="@+id/layoutFooter" android:layout_width="wrap_content"android:layout_height="wrap_content" android:layout_alignParentBottom="true" /></RelativeLayout>

public class Activity1 extends Activity {Footer footer;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);footer = (Footer) findViewById(R.id.layoutFooter);footer.setActivity(this);}}

public class Footer extends LinearLayout {private Context mContext;private Button btn11;private Button btn12;// use Activity Object to call finish() method which is not possible using// contextprivate Activity mActivity;public Footer(Context context, AttributeSet attrs) {super(context, attrs);mContext = context;String infService = Context.LAYOUT_INFLATER_SERVICE;LayoutInflater li;li = (LayoutInflater) getContext().getSystemService(infService);li.inflate(R.layout.footer, this, true);btn11 = (Button) findViewById(R.id.Button11);btn11.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent myIntent = new Intent(mContext, Activity1.class);mActivity.finish();mActivity.startActivity(myIntent);}});btn12 = (Button) findViewById(R.id.Button12);btn12.setOnClickListener(mFooterListener);}public void setActivity(Activity activity) {// set init otherwise of ctor and call externally...mActivity = activity;}// Create an anonymous implementation of OnClickListenerprivate OnClickListener mFooterListener = new OnClickListener() {public void onClick(View v) {Intent myIntent;switch (v.getId()) {case R.id.Button12:myIntent = new Intent(mContext, Activity2.class);mActivity.finish();mActivity.startActivity(myIntent);break;}}};}

Here its complete source code.http://www.megaupload.com/?d=QWCP60GN

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