Dialog对话框

1.显示内容

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("对话框标题");
builder.setMessage("对话框内容");
AlertDialog dialog = builder.create();
dialog.show();

//new AlertDialog.Builder(MainActivity.this).setTitle("标题").setMessage("内容").create().show();大神写法

2.赞成/中立/反对按钮

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("标题");
builder.setMessage("内容");
builder.setNegativeButton("反对", new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, "反对派", Toast.LENGTH_LONG).show();
    }
});
builder.setNeutralButton("中立", new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, "中立派", Toast.LENGTH_LONG).show();
    }
});
builder.setPositiveButton("赞同", new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, "赞同派",Toast.LENGTH_LONG).show();
    }
});
AlertDialog dialog = builder.create();
dialog.show();

3.单选框

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("旅游");
final String[] items = new String[]{"国外游","省外游","郊游"};
builder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, items[which], Toast.LENGTH_LONG).show();
        dialog.dismiss();
    }
});
AlertDialog dialog = builder.create();
dialog.show();

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("旅游");
final String[] items = new String[]{"国外游","省外游","郊游"};
builder.setSingleChoiceItems(items, checkedItem, new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        checkedItem = which;
    }
});
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, items[checkedItem], Toast.LENGTH_LONG).show();
    }
});
AlertDialog dialog = builder.create();
dialog.show();

4.复选框

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("你喜欢哪部四大名著？");
final String[] items = new String[]{"西游记","三国演义","水浒传","红楼梦"};
final boolean[] checkedItems = new boolean[]{true,false,false,false};
builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
        checkedItems[which] = isChecked;
    }
});
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

    @Override
    public void onClick(DialogInterface dialog, int which) {
        String str = "";
        for(int i = 0;i<checkedItems.length;i++){
            if(checkedItems[i]){
                str +=items[i]+ " ";
            }
        }
        Toast.makeText(MainActivity.this, str, Toast.LENGTH_LONG).show();
    }
});
AlertDialog dialog = builder.create();
dialog.show();

5.自定义

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("标题");
LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
View view = inflater.inflate(R.layout.dialog, null);
builder.setView(view);
AlertDialog dialog = builder.create();
dialog.show();

注：

获得LayoutInflater对象有三种方法（效果一样）：

*通过LayoutInflater的静态方法from()获得

LayoutInflater inflater = LayoutInflater.from(MainActivity.this); 

*通过Activity的getLayoutInflater()方法获得

LayoutInflater inflater = this.getLayoutInflater(); 

*通过系统服务获取

LayoutInflater inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

然后

View view = inflater.inflate(R.layout.activity_main, null);
setContentView(view);

6.进度条

final ProgressDialog dialog = new ProgressDialog(MainActivity.this);
dialog.setTitle("标题");
dialog.setMessage("内容");
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progress = 0;
Timer timer = new Timer();
timer.schedule(new TimerTask() {

    @Override
    public void run() {
        progress+=10;
        if(progress>100){
            progress=100;
            dialog.dismiss();
        }
        dialog.setProgress(progress);
    }
}, 1000    , 1000);
dialog.show();

7.显示Item的对话框

private String[] items = {"魏","蜀","吴"};

AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setItems(items, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this,items[which],Toast.LENGTH_SHORT).show();
    }
});
AlertDialog dialog = builder.create();
dialog.show();

效果图：

8.显示listview的对话框

ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,new String[]{"张三","李四"});
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {

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

效果图：

9.显示自定义view的对话框

View view = LayoutInflater.from(this).inflate(R.layout.activity_main,null);
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setView(view);
AlertDialog dialog = builder.create();
dialog.show();

效果图：