几种简单的Dialog对话框

来源：互联网发布：自动化编程是什么编辑：程序博客网时间：2024/05/20 14:28

什么是Dialog

对话框是在当前界面弹出的一个小窗口，用于显示重要提示信息，提示用户输入信息，确认信息，或者显示某种状态，如下载进度，退出提示等等。一般情况下，用户要与对话框进行交互，然后返回到被遮盖的界面继续进行当前的应用程序；

几种常见的Dialog

确认对话框

单选按钮对话框

多选按钮对话框

列表对话框

public class DialogActivity extends AppCompatActivity implements View.OnClickListener{private TextView show;String[] items ={"北京","上海","广州","深圳"};@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_dialog);    initEvent();}private void initEvent() {    findViewById(R.id.dialog1).setOnClickListener(this);    findViewById(R.id.dialog2).setOnClickListener(this);    findViewById(R.id.dialog3).setOnClickListener(this);    show = (TextView) findViewById(R.id.my_tex);}@Overridepublic void onClick(View v) {    switch (v.getId()){        case R.id.dialog1:{            showDialog1();            break();        }        case R.id.dialog2:{            showDialog2();            break();        }        case R.id.dialog3:{            showDialog3();            break();        }    }}//确认对话框private void showDialog1() {    AlertDialog.Builder builder = new AlertDialog.Builder(this);    builder.setTitle("确认对话框");    builder.setIcon(R.mipmap.ic_launcher);    builder.setMessage("这是显示确认的对话框");    /*    添加确认按钮    */    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了确认按钮", Toast.LENGTH_SHORT).show();        }    });    /*    添加取消按钮     */    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了取消按钮", Toast.LENGTH_SHORT).show();        }    });    AlertDialog dialog = builder.create();    dialog.show();}//单选对话框private void showDialog2() {    AlertDialog.Builder builder = new AlertDialog.Builder(this);    builder.setTitle("单选列表");    builder.setIcon(R.mipmap.ic_launcher);    builder.setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            show.setText("你选中了:"+items[which]);        }    });    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了确认按钮", Toast.LENGTH_SHORT).show();        }    });    /*    添加取消按钮     */    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了取消按钮", Toast.LENGTH_SHORT).show();        }    });    AlertDialog dialog = builder.create();    dialog.show();}//多选列表对话框private void showDialog3() {    AlertDialog.Builder builder = new AlertDialog.Builder(this);    builder.setTitle("多选列表");    builder.setIcon(R.mipmap.ic_launcher);    builder.setMultiChoiceItems(items,new boolean[] {false,true,false,true},null );    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了确认按钮", Toast.LENGTH_SHORT).show();        }    });    /*    添加取消按钮     */    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {        @Override        public void onClick(DialogInterface dialog, int which) {            Toast.makeText(DialogActivity.this, "点击了取消按钮", Toast.LENGTH_SHORT).show();        }    });    AlertDialog dialog = builder.create();    dialog.show();}

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