android-Toast的用法_安卓toast怎么写-优快云博客

本文详细介绍了在Android开发中如何自定义Toast，包括普通的Toast展示、位置自定义、界面自定义以及完全自定义界面的实现方式。

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Toast是Android中用来显示显示信息的一种机制，和Dialog不一样的是，Toast是没有焦点的，而且Toast显示的时间有限，过一定的时间就会自动消失。下面用一个实例来看看如何使用Toast。

一般的Toast

Toast.makeText(getApplicationContext(), "默认Toast样式",
     Toast.LENGTH_SHORT).show();

也可以自定义Toast的位置

toast = Toast.makeText(getApplicationContext(),
     "自定义位置Toast", Toast.LENGTH_LONG);
   toast.setGravity(Gravity.CENTER, 0, 0);
   toast.show();

自定义Toast界面

toast = Toast.makeText(getApplicationContext(),
     "带图片的Toast", Toast.LENGTH_LONG);
   toast.setGravity(Gravity.CENTER, 0, 0);
   LinearLayout toastView = (LinearLayout) toast.getView();
   ImageView imageCodeProject = new ImageView(getApplicationContext());
   imageCodeProject.setImageResource(R.drawable.icon);
   toastView.addView(imageCodeProject, 0);
   toast.show();

或者

@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				inflater=(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
				View view =inflater.inflate(R.layout.preview, null);
				TextView message =(TextView) view.findViewById(R.id.bgName);
				message.setText("自定义Toast");
				ImageView mView01=(ImageView)view.findViewById(R.id.bgImage);
				mView01.setImageResource(R.drawable.icon);
				
				Toast toast=Toast.makeText(main.this, "", Toast.LENGTH_SHORT);
				toast.setView(view);
				toast.show();
			}

完全自己写界面的Toast

LayoutInflater inflater = getLayoutInflater();
   View layout = inflater.inflate(R.layout.custom,
     (ViewGroup) findViewById(R.id.llToast));
   ImageView image = (ImageView) layout
     .findViewById(R.id.tvImageToast);
   image.setImageResource(R.drawable.icon);
   TextView title = (TextView) layout.findViewById(R.id.tvTitleToast);
   title.setText("Attention");
   TextView text = (TextView) layout.findViewById(R.id.tvTextToast);
   text.setText("完全自定义Toast");
   toast = new Toast(getApplicationContext());
   toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40);
   toast.setDuration(Toast.LENGTH_LONG);
   toast.setView(layout);
   toast.show();