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Android屏幕底部弹出DialogFragment(3)



Android屏幕底部弹出DialogFragment(3)

附录文章1,2的DialogFragment是常规的DialogFragment,但是现在的一些Android开发中,往往需要从底部弹出一个功能对话框供用户选择使用。这种底部弹出的对话框开源项目也很多,比如附录文章3,4,5,6,7,8,9,10,11。

对Android原生的DialogFragment进行改造,也可以实现底部弹出的对话框(面板)。重点是要设置重载DialogFragment的Gravity位置:Gravity.BOTTOM。

写一个例子:

package zhangphil.demo;

import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.app.DialogFragment;
import android.app.FragmentManager;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		final FragmentManager fm = this.getFragmentManager();

		findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View v) {
				BottomDialogFragment f = new BottomDialogFragment();
				f.show(fm, BottomDialogFragment.class.getName());
			}
		});
		;
	}

	public class BottomDialogFragment extends DialogFragment {

		@Override
		public Dialog onCreateDialog(Bundle savedInstanceState) {

			Dialog dialog = new Dialog(getActivity(), R.style.BottomFragmentDialog);

			// 必须在setContentView之前调用。否则运行时报错。
			dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

			LayoutInflater inflater = getActivity().getLayoutInflater();
			View view = inflater.inflate(android.R.layout.simple_list_item_2, null);
			TextView text1 = (TextView) view.findViewById(android.R.id.text1);
			text1.setText("zhang phil");
			TextView text2 = (TextView) view.findViewById(android.R.id.text2);
			text2.setText("zhang phil @ csdn");

			// 底部弹出的DialogFragment装载的View
			dialog.setContentView(view);

			dialog.setCancelable(true);
			dialog.setCanceledOnTouchOutside(true);

			// 设置底部弹出显示的DialogFragment窗口属性。
			Window window = dialog.getWindow();
			WindowManager.LayoutParams params = window.getAttributes();
			params.gravity = Gravity.BOTTOM;
			params.width = WindowManager.LayoutParams.MATCH_PARENT;
			params.height = 1000; // 底部弹出的DialogFragment的高度,如果是MATCH_PARENT则铺满整个窗口
			window.setAttributes(params);

			return dialog;
		}
	}
}
           

需要在styles.xml文件里面定义一个style:

<style name="BottomFragmentDialog" parent="@style/AppTheme">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:windowIsFloating">true</item>
    </style>           

代码运行结果:

附录:

1,《Android DialogFragment(1)》链接地址:

http://blog.csdn.net/zhangphil/article/details/50886077

2,《Android DialogFragment(2)》链接地址:

http://blog.csdn.net/zhangphil/article/details/50923828

Android BottomSheet相关:

3,《Android BottomSheet:便捷易用的底部滑出面板(1)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51775955

4,《Android BottomSheet:以选取图片为例(2)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51776408

5,《Android BottomSheet:List列表或Grid网格展示(3)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51781698

6,《Android BottomSheet:底部弹出Fragment面板(4)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51787875

AndroidSweetSheet相关:

7,《AndroidSweetSheet:从底部弹出面板(1)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51790845

8,《AndroidSweetSheet:ViewPager的实现(2)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51791210

AndroidSlidingUpPanel相关:

9,《Android自底部平滑向上滑出面板的AndroidSlidingUpPanel》链接地址:

http://blog.csdn.net/zhangphil/article/details/51444509

Android DraggablePanel相关:

10,《Android音乐、视频类APP常用控件:DraggablePanel(1)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51566860

11,《Android音乐、视频类APP常用控件:DraggablePanel(2)》链接地址:

http://blog.csdn.net/zhangphil/article/details/51578665

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