Toast

Toast分為預設的和自定義佈局的Toast

1.Toast是獨立， 不依賴於Activity，但是不能對他進行操作，因此通常用於提示資訊，
2.預設的Toast比較簡單其程式碼如下：

 Toast toast=Toast.makeText(getApplicationContext(),"恭喜你中獎了",Toast.LENGTH_LONG);
                Spanned spanned=Html.fromHtml("我是<img src=''><font color='#ff0000'>暴擊</font>", new Html.ImageGetter
 
() {
                    @Override
                    public Drawable getDrawable(String source) {
                        Drawable drawable = getResources().getDrawable(R.mipmap.ic_launcher);
                        drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
 

                        return drawable;
                    }
                }, null);
                toast.setText(spanned);
                toast.setDuration(Toast.LENGTH_SHORT);
                toast.setGravity(Gravity.CENTER,0,0);
                toast.show();

3.上面是Spanner是富文字
4.自定義佈局的Toast需要自定義一個佈局，並且需要通過呼叫inflate方法來找到該佈局設定成為View
5.自定義Toast的程式碼如下：

oast toast1=new Toast(getApplicationContext());
                LayoutInflater inflater=getLayoutInflater();
                View toastView=inflater.inflate(R.layout.toast_zidingyi,null);

                TextView textView= (TextView) toastView.findViewById(R.id.textview_toast1);
                textView.setText("彈出自定義Toast標題");

                ImageView imageView= (ImageView) toastView.findViewById(R.id.imageview_toast);
                imageView.setImageResource(R.mipmap.ic_launcher);

                TextView textView1= (TextView) toastView.findViewById(R.id.textview_toast2);
                textView1.setText("彈出自定義Toast結尾");

                toast1.setView(toastView);
                toast1.setDuration(Toast.LENGTH_SHORT);
                toast1.show();

6.最重要的一點是最後toast一定要呼叫show方法，這樣才能進行顯示

AlterDialog有多種方式

最重要的一點最後一定要呼叫creat方法和show方法
1.最簡單的AlterDialog實現的程式碼如下：

 AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);
        builder.setIcon(R.mipmap.ic_launcher).setTitle("恭喜").setMessage("恭喜你獲得安卓玩偶一個，點選確定獲取").setNegativeButton("NegativeButton",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點選了NegativeButton", Toast.LENGTH_SHORT).show();
            }
        }).setNeutralButton("NeutralButton",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點選了NeutralButton", Toast.LENGTH_SHORT).show();
            }
        }).setPositiveButton("PositiveButton",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "點選了PositiveButton", Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog=builder.create();
        dialog.show();

2.多選項的AlterDialog

private String[] mData={"Json","Kasi","Luxi","Major"};
AlertDialog.Builder builder1=new AlertDialog.Builder(MainActivity.this);
        builder1.setIcon(R.mipmap.ic_launcher);
        builder1.setTitle("標題");
        builder1.setItems(mData, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getApplicationContext(), "支援了第" + which + "位", Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog1=builder1.create();
        dialog1.show();

3.只能單選的AlterDialog

private String[] mSections={"Top","Mid","ADC","Sub","Ye"};
    private String mSection;
    AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);
        builder.setIcon(R.mipmap.ic_launcher);
        builder.setTitle("標題");
        builder.setSingleChoiceItems(mSections,0, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                mSection=mSections[which];
                Toast.makeText(getApplicationContext(), "選擇的位置是：" + mSections[which], Toast.LENGTH_SHORT).show();
            }
        });
        builder.setNeutralButton("確定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                mButton3.setText(mSection);
            }
        });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        AlertDialog dialog=builder.create();
        dialog.show();

4.多選AlterDialog

private String[] mFavoer={"薇恩","伊澤瑞爾","凱特琳","希維爾","格雷福斯","庫奇","圖奇"};
    private boolean[] mMangerFavoer=new boolean[mFavoer.length];
    private StringBuffer favoer;
AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);
        builder.setIcon(R.mipmap.ic_launcher);
        builder.setTitle("選擇你最喜歡的英雄");
        builder.setMultiChoiceItems(mFavoer, mMangerFavoer, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                mMangerFavoer[which]=isChecked;
            }
        });
        builder.setNeutralButton("確定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                favoer=new StringBuffer();
                for(int i=0;i<mMangerFavoer.length;i++){
                    if(mMangerFavoer[i]){
                        favoer.append(mFavoer[i]);
                    }
                }
                mButton4.setText("ADC："+favoer);
            }
        });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        AlertDialog dialog=builder.create();
        dialog.show();