android 自定义DialogFragment<一>
经常在Fragment中要使用Dialog
直接给出一个demo :
主xml文件:
<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" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hello_world" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/textView1" android:text="Button" /> </RelativeLayout>
主程序:
package com.example.androiddialogfragmenttest; import android.os.Bundle; import android.annotation.SuppressLint; import android.app.Activity; import android.app.DialogFragment; import android.util.Log; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView tv = (TextView)findViewById(R.id.text); tv.setText("Android123-DialogFragment Samples"); Button button = (Button)findViewById(R.id.button1); button.setOnClickListener(new OnClickListener() { public void onClick(View v) { showDialog(); } }); } @SuppressLint("NewApi") void showDialog() { DialogFragment newFragment = MyAlertDialogFragment.newInstance(1); newFragment.show(getFragmentManager(), "Title"); } public void doPositiveClick() { Log.i("FragmentAlertDialog", "左键按下"); } public void doNegativeClick() { } }
自定义DialogFragment类:
package com.example.androiddialogfragmenttest; import android.annotation.SuppressLint; import android.app.AlertDialog; import android.app.Dialog; import android.app.DialogFragment; import android.content.DialogInterface; import android.os.Bundle; @SuppressLint("NewApi") public class MyAlertDialogFragment extends DialogFragment{ public static MyAlertDialogFragment newInstance(int title) { MyAlertDialogFragment frag = new MyAlertDialogFragment(); Bundle args = new Bundle(); args.putInt("title", title); frag.setArguments(args); return frag; } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { int title = getArguments().getInt("title"); return new AlertDialog.Builder(getActivity()) .setIcon(R.drawable.ia) .setTitle("index : " + title) .setPositiveButton("ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { //((FragmentAlertDialog)getActivity()).doPositiveClick(); } } ) .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { //((FragmentAlertDialog)getActivity()).doNegativeClick(); } } ) .create(); } }