自定义吐司以及Toast的各种用法，详解。教你学会使用各种各样的Toast

package com.david_Custoast;

import com.david_Custoast.R;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    // 默认吐司
    public void showNormalToast(View view) {
//      Toast.makeText(this, "我显示了", Toast.LENGTH_SHORT).show();
        Toast toast = Toast.makeText(this, "我显示了", Toast.LENGTH_SHORT);
        toast.show();
    }
    
    // 其他对齐方式的吐司
    public void showGravityToast(View view) {
        Toast toast = Toast.makeText(this, "我又显示了", Toast.LENGTH_SHORT);
        // 设置吐司的展示位置
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
    }
    
    // 自定义吐司
    public void showCustomToast(View view) {
        // 获取吐司的根视图
        View rootView = LayoutInflater.from(this).inflate(R.layout.toast_custom, null);
        ImageView iv = (ImageView) rootView.findViewById(R.id.iv);
        TextView tv = (TextView) rootView.findViewById(R.id.tv);
        
        iv.setImageResource(R.drawable.f029);
        tv.setText("么么哒");
        
        Toast toast = new Toast(this);
        // 修改吐司对齐方式
        toast.setGravity(Gravity.CENTER, 0, 0);
        // 设置跟视图
        toast.setView(rootView);
        // 设置展示时间
        toast.setDuration(Toast.LENGTH_LONG);
        // 展示吐司
        toast.show();
    }
}