系統教程初步要做到的就是12節和13節所演示的

12節：  https://www.cnblogs.com/yangfengwu/p/9966702.html

13節：  https://www.cnblogs.com/yangfengwu/p/9966901.html

https://www.cnblogs.com/yangfengwu/p/9065406.html   安裝Android Studio

https://www.cnblogs.com/yangfengwu/p/9142929.html    匯入工程

 APP已經能運行了。。。

因為開發這個系統需要一些jar包，所以匯入用到的jar包

 現在測試顯示幾個資料

public class MainActivity extends AppCompatActivity {

    ListView listView1;
    
 
static ArrayList<String> ArrayListClientId = new ArrayList<String>();//儲存ListView的資料
    ArrayAdapter<String> adapter;//為ListView新增一個介面卡
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ArrayListClientId.add(
 
"1");
        ArrayListClientId.add("2");
        ArrayListClientId.add("3");

        listView1 = findViewById(R.id.ListView1);
        adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,ArrayListClientId);
        listView1.setAdapter(adapter);
    }
}

 再做一個長按的操作

 然後自己可以試一試用自己的手指長按和點選

 所以就做一個變數控制下，長按以後別執行點選裡面的

public class MainActivity extends AppCompatActivity {

    ListView listView1;
    static ArrayList<String> ArrayListClientId = new ArrayList<String>();//儲存ListView的資料
    ArrayAdapter<String> adapter;//為ListView新增一個介面卡
    boolean LongClick = false;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ArrayListClientId.add("1");
        ArrayListClientId.add("2");
        ArrayListClientId.add("3");

        listView1 = findViewById(R.id.ListView1);
        adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,ArrayListClientId);
        listView1.setAdapter(adapter);

        listView1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (!LongClick){
                    Toast.makeText(MainActivity.this,"點選"+ArrayListClientId.get(position),Toast.LENGTH_SHORT).show();
                }
                LongClick = false;
            }
        });

        listView1.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(MainActivity.this,"長按"+ArrayListClientId.get(position),Toast.LENGTH_SHORT).show();
                LongClick = true;
                return false;
            }
        });
    }
}

可以自己再試一試

 然後在做一下長按刪除

public class MainActivity extends AppCompatActivity {

    ListView listView1;
    static ArrayList<String> ArrayListClientId = new ArrayList<String>();//儲存ListView的資料
    ArrayAdapter<String> adapter;//為ListView新增一個介面卡
    boolean LongClick = false;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ArrayListClientId.add("1");
        ArrayListClientId.add("2");
        ArrayListClientId.add("3");

        listView1 = findViewById(R.id.ListView1);
        adapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,ArrayListClientId);
        listView1.setAdapter(adapter);

        listView1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if (!LongClick){
                    Toast.makeText(MainActivity.this,"點選"+ArrayListClientId.get(position),Toast.LENGTH_SHORT).show();
                }
                LongClick = false;
            }
        });

        listView1.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                Toast.makeText(MainActivity.this,"長按"+ArrayListClientId.get(position),Toast.LENGTH_SHORT).show();
                LongClick = true;
                showNormalDialog(position);
                return false;
            }
        });
    }

    private void showNormalDialog(final int index){
        final AlertDialog.Builder normalDialog = new AlertDialog.Builder(MainActivity.this);
        normalDialog.setTitle("刪除裝置");
        normalDialog.setMessage("確定要刪除裝置嗎？");
        normalDialog.setPositiveButton("刪除", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                ArrayListClientId.remove(index);
                adapter.notifyDataSetChanged();
            }
        });
        normalDialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                    }
                });
        normalDialog.show();// 顯示
    }
}

 好了這是第一節