我有一个带动作栏的MainActivity。点击" plus",打开一个由EditText,一个按钮"取消"形成的DialogFragment。和一个按钮"继续"。 通过单击"继续",我创建一个新按钮,其中包含我在EditText中放置的字符串。默认按钮位于主活动的左上角。我想要的是每次我创建一个位于右上方的按钮,一个位于另一个下方。我该怎么办?
这是我的代码:
MainActivity
public class MainActivity extends FragmentActivity implements IProjectDialFrag {
private ProjectDialogFragment projectDialFrag = new ProjectDialogFragment();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
switch (id) {
case R.id.action_settings:
//TODO
return true;
case R.id.filters:
Intent intent1 = new Intent(MainActivity.this, FiltersActivity.class);
startActivity(intent1);
return true;
case R.id.action_new:
return true;
case R.id.add_button:
Intent intent2 = new Intent(MainActivity.this, ButtonsActivity.class);
startActivity(intent2);
return true;
case R.id.add_project:
projectDialFrag.show(getFragmentManager(), "projectDialog");
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onDialogNegativeClick(DialogFragment dialog) {
return;
}
@Override
public void onDialogPositiveClick(DialogFragment dialog) {
EditText editText = (EditText) dialog.getDialog().findViewById(R.id.project_name);
String projectName = editText.getText().toString();
Button projectButton = new Button(this);
projectButton.setText(projectName);
// LinearLayout linearLayout = (LinearLayout) findViewById(R.id.main_layout);
// linearLayout.addView(projectButton);
RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.main_layout);
relativeLayout.addView(projectButton);
}
}
DialogFragment
public class ProjectDialogFragment extends DialogFragment {
private IProjectDialFrag iProjDialFrag;
@SuppressLint("InflateParams")
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder createProjectAlert = new AlertDialog.Builder(getActivity());
createProjectAlert.setTitle("Create Project");
LayoutInflater inflater = getActivity().getLayoutInflater();
createProjectAlert.setView(inflater.inflate(R.layout.project_dialog_fragment, null))
.setPositiveButton(R.string.conti_nue, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
iProjDialFrag.onDialogPositiveClick(ProjectDialogFragment.this);
}
})
.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
iProjDialFrag.onDialogNegativeClick(ProjectDialogFragment.this);
}
});
return createProjectAlert.create();
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
iProjDialFrag = (IProjectDialFrag) activity;
}
}
界面
public interface IProjectDialFrag {
public void onDialogPositiveClick(DialogFragment dialog);
public void onDialogNegativeClick(DialogFragment dialog);
}
XML布局:
MainActivity布局
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
</RelativeLayout>
DialogFragment布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<EditText
android:id="@+id/project_name"
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:hint="@string/hint_project_alert" />
</LinearLayout>
答案 0 :(得分:0)
试试这个......
将MainActivity布局更改为:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:id="@+id/buttons_painel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true">
</LinearLayout>
</RelativeLayout>
并更改您的onDialogPositiveClick
@Override
public void onDialogPositiveClick(DialogFragment dialog) {
EditText editText = (EditText) dialog.getDialog().findViewById(R.id.project_name);
String projectName = editText.getText().toString();
Button projectButton = new Button(this);
projectButton.setText(projectName);
LinearLayout linearLayout = (LinearLayout) findViewById(R.id.buttons_painel);
linearLayout.addView(projectButton);
}