DialogFragment

来源：互联网发布：java多线程详解编辑：程序博客网时间：2024/06/10 06:29

Dialog类

public class TestDialog extends DialogFragment implements View.OnClickListener{    TextView textView;    EditText editText;    Button button_save;    Button button_dismiss;    Button button_help;                  public static TestDialog newInstant(String prompt)    {        TestDialog td = new TestDialog();        Bundle bundle = new Bundle();        bundle.putString("prompt", prompt);        td.setArguments(bundle);        return td;    }    public void onClick(View arg0) {        OnDialogDoneListener act = (OnDialogDoneListener) getActivity();        if(arg0.getId() == R.id.btn_dismiss)        {            act.onDialogDone(getTag(), true, null);            dismiss();            return;        }        if(arg0.getId() == R.id.btn_help)        {                              }        if(arg0.getId() == R.id.btn_save)        {//          TextView v = (TextView)getView().findViewById(R.id.textView);            act.onDialogDone(getTag(), false, editText.getText());            dismiss();            return;        }    }    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,            Bundle savedInstanceState) {        View v = inflater.inflate(R.layout.dialog, container, false);                          textView = (TextView)v.findViewById(R.id.promptmessage);        editText = (EditText)v.findViewById(R.id.inputtext);                          button_save = (Button)v.findViewById(R.id.btn_save);        button_dismiss = (Button)v.findViewById(R.id.btn_dismiss);        button_help = (Button)v.findViewById(R.id.btn_help);                          button_save.setOnClickListener(this);        button_dismiss.setOnClickListener(this);        button_help.setOnClickListener(this);                          return v;    }

activity实现自定义的一个借口，与Dialog类交互

public interface OnDialogDoneListener {    public void onDialogDone(String tag, boolean cancel, CharSequence message);}

activity类：

public class MainActivity extends Activity implements OnDialogDoneListener {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.//      getMenuInflater().inflate(R.menu.main, menu);        super.onCreateOptionsMenu(menu);        menu.add(0, 0, 0, "dialog");        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // TODO Auto-generated method stub        switch(item.getItemId())        {        case 0:            testDialog();        }        return super.onOptionsItemSelected(item);    }    @TargetApi(Build.VERSION_CODES.HONEYCOMB)    @SuppressLint("NewApi")    private void testDialog()    {        TestDialog td = TestDialog.newInstant("xia");        FragmentManager fm = getFragmentManager();        FragmentTransaction ft = fm.beginTransaction();        td.show(ft, "Test Dialog");    }    public void onDialogDone(String tag, boolean cancel, CharSequence message)    {        String s = tag + "responds with : " + message;        if(cancel)        {            s = tag + " was cancelled by the user";        }        Toast.makeText(this, s, Toast.LENGTH_LONG);        Log.v("log_debug", s);    }}

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