Android Toast詳解

Toast的基本原理其實就是將一個View添加到WindowManager中，讓WindowManager來把View顯示出來。
Toast是Android用來顯示信息的一種機制，和Dialog不一樣的是，Toast是沒有焦點的，而且Toast顯示的時間有限，過一定的時間就會自動消失，而且Toast主要用於向用戶顯示提示消息。


Toast.makeText(getApplicationContext(), "默認Toast樣式",Toast.LENGTH_SHORT).show();


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


toast = Toast.makeText(getApplicationContext(),"帶圖片的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();


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("完全自定義Toast");
toast = new Toast(getApplicationContext());
toast.setGravity(Gravity.RIGHT | Gravity.TOP, 12, 40);
toast.setDuration(Toast.LENGTH_LONG);
toast.setView(layout);
toast.show();




參考文檔
http://daikainan.iteye.com/blog/1405575
http://blog.csdn.net/renguichao/article/details/7846246




時間
起草於 2015-10-14