android toast用法总结(一)
2015-04-21 09:42
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1,Toast简单用法:
2,Toast也是一个容器,可以包含各种View,承载着它们显示出来,
3,包含Layout,并显示:
![](http://img.blog.csdn.net/20150421092453732)
Toast.setView源码:
4,获得toast的布局
5,
//利用工厂方法构造一个简单的Toast,并链式结构的直接进行提示 Toast.makeText(this, "这是一个Toast示", Toast.LENGTH_LONG).show();
2,Toast也是一个容器,可以包含各种View,承载着它们显示出来,
//初始化Toast Toast toast = new Toast(this); //设置显示时间,可以选择Toast.LENGTH_LONG或者Toast.LENGTH_SHORT toast.setDuration(Toast.LENGTH_LONG); //承载一个TextView,用来显示文字 TextView tview = new TextView(this); //设置TextView的值 tview.setText("这是一个Toast提示"); //设置TextView的布局 tview.setLayoutParams(new LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT)); //Toast承载该view toast.setView(tview); //显示Toast toast.show();
3,包含Layout,并显示:
Toast toast = new Toast(this); toast.setDuration(Toast.LENGTH_LONG); TextView tview = new TextView(this); ImageView iView = new ImageView(MainActivity.this); tview.setText("Toast提示"); iView.setImageResource(R.drawable.ic_launcher); //tview.setLayoutParams(new LayoutParams( //LinearLayout.LayoutParams.WRAP_CONTENT, //LinearLayout.LayoutParams.WRAP_CONTENT)); // Toast承载该layout LinearLayout layout = new LinearLayout(MainActivity.this); layout.setOrientation(LinearLayout.VERTICAL); layout.addView(iView); layout.addView(tview); toast.setView(layout); toast.setGravity(Gravity.CENTER, 0, 0); // toast.setMargin(0f, 0.5f); toast.show();
Toast.setView源码:
View mNextView; /** * Set the view to show. * @see #getView */ public void setView(View view) { mNextView = view; }
4,获得toast的布局
Toast toast1=Toast.makeText(this, "显示带图片的toast", 3000); toast1.setGravity(Gravity.CENTER, 0, 0); ImageView imageView= new ImageView(getApplicationContext()); imageView.setImageResource(R.drawable.ic_launcher); //获得toast的布局 LinearLayout toastView = (LinearLayout) toast1.getView(); toastView.setOrientation(LinearLayout.VERTICAL); //将ImageView在加入到此布局中的第一个位置 toastView.addView(imageView, 0); toast1.setView(toastView); toast1.show();
5,
Toast toast3 = Toast.makeText(this, "这是一个代图片的Toast!", Toast.LENGTH_LONG); ImageView imageView3 = new ImageView(this); imageView3.setImageResource(R.drawable.ic_launcher); View toastView3 = toast3.getView(); LinearLayout linearLayout3 = new LinearLayout(this); linearLayout3.setOrientation(LinearLayout.VERTICAL); // 将ImageView和ToastView合并到Layout中 linearLayout3.addView(imageView3); linearLayout3.addView(toastView3); // 替换掉原有的ToastView toast3.setView(linearLayout3); toast3.show();
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