android 五种Toast显示方法

		/**
	private static final String TOASTBTN_1 = "这是默认的Toast显示";
	private static final String TOASTBTN_2 = "这是自定义位置的Toast显示";
	private static final String TOASTBTN_3 = "这是带图片的Toast显示";
	private static final String TOASTBTN_4 = "这是完全自定义的Toast显示";
	private static final String TOASTBTN_5 = "这是长时间的Toast显示";
		 */
		case R.id.button_1:
			toast.makeText(this, TOASTBTN_1, Toast.LENGTH_LONG).show();
			break;

		case R.id.button_2:
			toast = Toast.makeText(getApplicationContext(), TOASTBTN_2,
					Toast.LENGTH_LONG);
			toast.setGravity(Gravity.CENTER, 0, 0);
			toast.show();
			break;

		case R.id.button_3:
			toast = Toast.makeText(getApplicationContext(), TOASTBTN_3,
					Toast.LENGTH_LONG);
			toast.setGravity(Gravity.CENTER, 50, -100);
			LinearLayout layout = (LinearLayout) toast.getView();
			ImageView image = new ImageView(getApplicationContext());
			image.setImageResource(R.drawable.wallpaper_tree_small);
			layout.addView(image, 0);
			toast.show();
			break;

		case R.id.button_4:
			LayoutInflater inflater = getLayoutInflater();
			View view = inflater.inflate(R.layout.userdefinedtoast,
					(ViewGroup) findViewById(R.id.toast_layout));
			TextView txtView_Title = (TextView) view
					.findViewById(R.id.txt_Title);
			TextView txtView_Context = (TextView) view
					.findViewById(R.id.txt_context);
			ImageView imageView = (ImageView) view
					.findViewById(R.id.image_toast);
			toast = new Toast(getApplicationContext());
			toast.setGravity(Gravity.CENTER, 0, 0);
			toast.setDuration(Toast.LENGTH_LONG);
			toast.setView(view);
			toast.show();
			break;
			
		case R.id.button_5:
			LayoutInflater inflater1 = getLayoutInflater();
			View view1 = inflater1.inflate(R.layout.userdefinedtoast,
					(ViewGroup) findViewById(R.id.toast_layout));
			TextView txtView_Title1 = (TextView) view1
					.findViewById(R.id.txt_Title);
			TextView txtView_Context1 = (TextView) view1
					.findViewById(R.id.txt_context);
			ImageView imageView1 = (ImageView) view1
					.findViewById(R.id.image_toast);
			builder = new AlertDialog.Builder(this);
			builder.setView(view1);
			dialog = builder.create();
			dialog.show();