• Android Toast.makeText用法


    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。 

    1.默认效果

    代码

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

    2.自定义显示位置效果

    代码

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

    3.带图片效果

    代码

    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();

    4.完全自定义效果

    代码

    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();

    5.其他线程

    代码

    new Thread(new Runnable() {     public void run() {      showToast();     }    }).start();

    custom.xml

    <?xml version="1.0" encoding="utf-8"?> 
      <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_height
    ="wrap_content"
        android:layout_width
    ="wrap_content"
        android:background
    ="#ffffffff"
        android:orientation
    ="vertical"
        android:id
    ="@+id/llToast" >
        <TextView
          android:layout_height="wrap_content"
          android:layout_margin
    ="1dip"
          android:textColor
    ="#ffffffff"
          android:layout_width
    ="fill_parent"
          android:gravity
    ="center"
          android:background
    ="#bb000000"
          android:id
    ="@+id/tvTitleToast" />
        <LinearLayout
          android:layout_height="wrap_content"
          android:orientation
    ="vertical"
          android:id
    ="@+id/llToastContent"
          android:layout_marginLeft
    ="1dip"
          android:layout_marginRight
    ="1dip"
          android:layout_marginBottom
    ="1dip"
          android:layout_width
    ="wrap_content"
          android:padding
    ="15dip"
          android:background
    ="#44000000" >
          <ImageView
            android:layout_height="wrap_content"
            android:layout_gravity
    ="center"
            android:layout_width
    ="wrap_content"
            android:id
    ="@+id/tvImageToast" />
          <TextView
            android:layout_height="wrap_content"
            android:paddingRight
    ="10dip"
            android:paddingLeft
    ="10dip"
            android:layout_width
    ="wrap_content"
            android:gravity
    ="center"
            android:textColor
    ="#ff000000"
            android:id
    ="@+id/tvTextToast" />
        </LinearLayout>
      </LinearLayout>
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  • 原文地址:https://www.cnblogs.com/duanjt/p/4571504.html
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