Android 關於Dialog彈出框

直接上效果圖:

實現步驟:

1.主界面activity_main.xml很簡單,一個按鈕

2.彈出層樣式actionsheet.xml

3.ActionSheet類

public class ActionSheet {

	public interface OnActionSheetSelected {
		void onClick(int whichButton);
	}

	private ActionSheet() {
	}

	public static Dialog showSheet(Context context, final OnActionSheetSelected actionSheetSelected,
			OnCancelListener cancelListener) {
		final Dialog dlg = new Dialog(context, R.style.ActionSheet);
		LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		LinearLayout layout = (LinearLayout) inflater.inflate(R.layout.actionsheet, null);
		final int cFullFillWidth = 10000;
		layout.setMinimumWidth(cFullFillWidth);

		TextView mContent = (TextView) layout.findViewById(R.id.content);
		TextView mCancel = (TextView) layout.findViewById(R.id.cancel);

		mContent.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				actionSheetSelected.onClick(0);
				dlg.dismiss();
			}
		});

		mCancel.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				actionSheetSelected.onClick(1);
				dlg.dismiss();
			}
		});

		Window w = dlg.getWindow();
		WindowManager.LayoutParams lp = w.getAttributes();
		lp.x = 0;
		final int cMakeBottom = 0;
		lp.y = cMakeBottom;
		lp.gravity = Gravity.CENTER;
		dlg.onWindowAttributesChanged(lp);
		dlg.setCanceledOnTouchOutside(false);
		if (cancelListener != null)
			dlg.setOnCancelListener(cancelListener);

		dlg.setContentView(layout);
		dlg.show();

		return dlg;
	}

}

4.MainActivity

public class MainActivity extends Activity implements OnActionSheetSelected, OnCancelListener {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		findViewById(R.id.show).setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				ActionSheet.showSheet(MainActivity.this, MainActivity.this, MainActivity.this);
			}
		});
	}

	@Override
	public void onClick(int whichButton) {
		// TODO Auto-generated method stub
		switch (whichButton) {
			case 0:
				showToast("確定");
				break;

			case 1:
				showToast("取消");
				break;

			default:
				break;
		}

	}

	@Override
	public void onCancel(DialogInterface dialog) {
		// TODO Auto-generated method stub
		showToast("取消");
	}

	private void showToast(CharSequence charSequence) {
		Toast.makeText(this, charSequence, Toast.LENGTH_SHORT).show();
	}
}

源碼下載地址