ITEEDU

Toast详解

简单用法：

第一个为上下文，一般为this。第二个为显示的文本。第三个为显示的长短类型。

Toast.makeText(this,"text", Toast.LENGTH_SHORT).show();

显示一个视图的步骤：

Toast toast = new Toast(this); 
toast.setView(view); 
toast.setDuration(type); 
toast.show();

显示一个视图的实例：

LayoutInflater vi = 
	(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = vi.inflate(R.layout.incoming_message_panel, null);
TextView tv = (TextView)view.findViewById(R.id.message);
tv.setText("www.iteedu.com");
Toast toast = new Toast(this);
toast.setView(view);
toast.setDuration(Toast.LENGTH_LONG);
toast.show();

例子：

public class ActivityToast extends Activity {
	OnClickListener listener1 = null;
	OnClickListener listener2 = null;
	Button button1;
	Button button2;
	private static int NOTIFICATIONS_ID = R.layout.activity_toast;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		listener1 = new OnClickListener() {
			public void onClick(View v) {
				setTitle("短时间显示Toast");
				showToast(Toast.LENGTH_SHORT);
			}
		};
		listener2 = new OnClickListener() {
			public void onClick(View v) {
				setTitle("长时间显示Toast");
				showToast(Toast.LENGTH_LONG);
			}
		};
		setContentView(R.layout.activity_toast);
		button1 = (Button) findViewById(R.id.button1);
		button1.setOnClickListener(listener1);
		button2 = (Button) findViewById(R.id.button2);
		button2.setOnClickListener(listener2);
	}
	protected void showToast(int type) {
		View view = inflateView(R.layout.toast);
		TextView tv = (TextView) view.findViewById(R.id.content);
		tv.setText("让你的应用开发能力迅速提高");
		Toast toast = new Toast(this);
		toast.setView(view);
		toast.setDuration(type);
		toast.show();
	}
	private View inflateView(int resource) {
		LayoutInflater vi =
		(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		return vi.inflate(resource, null);
	}
}