Question

PatientReport.java

public class PatientReport extends AppCompatActivity {

private DrawerLayout drawerLayout;
int navItemId;
private Toolbar toolbar;
private EditText inputEmail, inputTitle, inputMessage;
private TextView level;
private TextInputLayout inputLayoutEmail, inputLayoutTitle, inputLayoutMessage;
private Button btnSend;
private Spinner spinner;
private ArrayAdapter<String> lunchList;
private Context mContext;
private static final String NAV_ITEM_ID = "nav_index";

private String[] em_level = {"Low", "Medium", "High"};

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

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    toolbar.setTitle("E-care");
    setSupportActionBar(toolbar);

    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    NavigationView view = (NavigationView) findViewById(R.id.navigation_view);
    view.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            Toast.makeText(PatientReport.this, menuItem.getItemId() + " pressed", Toast.LENGTH_LONG).show();
            Log.d(R.id.nav_1 + "", menuItem.getItemId() + " ");
            switch (menuItem.getItemId()) {


                case R.id.nav_1:

                    break;
                case R.id.nav_2:

                    break;
                case R.id.nav_3:
                    break;
                case R.id.nav_4:
                    break;
                case R.id.nav_5:
                    break;
                case R.id.nav_6:
                    break;

            }
            menuItem.setChecked(true);
            drawerLayout.closeDrawers();
            return true;
        }
    });

    ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle( this, drawerLayout, toolbar, R.string.drawer_open , R.string.drawer_close){
        @Override
        public void onDrawerClosed(View drawerView) {
            super .onDrawerClosed(drawerView);
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            super .onDrawerOpened(drawerView);
        }
    };

    drawerLayout.setDrawerListener(actionBarDrawerToggle);
    actionBarDrawerToggle.syncState();

    level= (TextView) findViewById(R.id.level);

    inputLayoutEmail = (TextInputLayout) findViewById(R.id.input_layout_email);
    inputLayoutTitle = (TextInputLayout) findViewById(R.id.input_layout_title);
    inputLayoutMessage = (TextInputLayout) findViewById(R.id.input_layout_message);
    inputEmail = (EditText) findViewById(R.id.input_email);
    inputTitle = (EditText) findViewById(R.id.input_title);
    inputMessage = (EditText) findViewById(R.id.input_message);
    btnSend = (Button) findViewById(R.id.btn_send);
    mContext = this.getApplicationContext();
    spinner = (Spinner)findViewById(R.id.my_spinner);
    lunchList = new ArrayAdapter<String>(PatientReport.this, android.R.layout.simple_spinner_item, em_level);
    spinner.setAdapter(lunchList);
    spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long arg3) {
            // Toast.makeText(mContext, "你選的是" + em_level[position], Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
        }
    });

    inputEmail.addTextChangedListener(new MyTextWatcher(inputEmail));
    inputTitle.addTextChangedListener(new MyTextWatcher(inputTitle));
    inputMessage.addTextChangedListener(new MyTextWatcher(inputMessage));

    level.setTextSize(getResources().getDimension(R.dimen.textsize));
    btnSend.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            submitForm();
        }
    });


}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_case_history_review, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

private void navigateTo(MenuItem menuItem){

    navItemId = menuItem.getItemId();
    menuItem.setChecked(true);
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt(NAV_ITEM_ID, 2);
}
/**
 * If the form is valid, the button will immediately intent to the email client
 */
private void submitForm() {
    if (!validateEmail()) {
        return;
    }

    if (!validateTitle()) {
        return;
    }

    if (!validateMessage()) {
        return;
    }

    String to = inputEmail.getText().toString();
    String title = inputTitle.getText().toString();
    String message = "Emergency Level: " + spinner.getSelectedItem().toString() + "\n" + "Detail : " + inputMessage.getText().toString();

    Intent email = new Intent(Intent.ACTION_SEND);
    email.putExtra(Intent.EXTRA_EMAIL, new String[]{to});
    //email.putExtra(Intent.EXTRA_CC, new String[]{ to});
    //email.putExtra(Intent.EXTRA_BCC, new String[]{to});
    email.putExtra(Intent.EXTRA_SUBJECT, title);
    email.putExtra(Intent.EXTRA_TEXT, message);

    //need this to prompts email client only
    email.setType("message/rfc822");

    startActivity(Intent.createChooser(email, "Choose an Email client :"));
}

private boolean validateEmail() {

    String email = inputEmail.getText().toString().trim();

    if (email.isEmpty() || !isValidEmail(email)) {
        inputLayoutEmail.setError(getString(R.string.err_msg_email));
        requestFocus(inputEmail);
        return false;
    } else {
        inputLayoutEmail.setErrorEnabled(false);
        inputEmail.setLinkTextColor(Color.WHITE);
    }

    return true;
}

private boolean validateTitle() {
    if (inputTitle.getText().toString().trim().isEmpty()) {
        inputLayoutTitle.setError(getString(R.string.err_msg_title));
        requestFocus(inputTitle);
        return false;
    } else {
        inputLayoutTitle.setErrorEnabled(false);
        inputTitle.setLinkTextColor(Color.WHITE);
    }

    return true;
}

private boolean validateMessage() {
    if (inputMessage.getText().toString().trim().isEmpty()) {
        inputLayoutMessage.setError(getString(R.string.err_msg_message));
        requestFocus(inputMessage);
        return false;
    } else {
        inputLayoutMessage.setErrorEnabled(false);
        inputMessage.setLinkTextColor(Color.WHITE);
    }

    return true;
}

private static boolean isValidEmail(String email) {
    return !TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}

private void requestFocus(View view) {
    if (view.requestFocus()) {
        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
    }
}

private class MyTextWatcher implements TextWatcher {

    private View view;

    private MyTextWatcher(View view) {
        this.view = view;
    }

    public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
    }

    public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
    }

    public void afterTextChanged(Editable editable) {
        switch (view.getId()) {
            case R.id.input_email:
                validateEmail();
                break;
            case R.id.input_title:
                validateTitle();
                break;
            case R.id.input_message:
                validateMessage();
                break;
        }
    }
}
}

case_history_review.java

public class Case_history_review extends AppCompatActivity {

private DrawerLayout drawerLayout;
private TextView contentView;
private int navItemId;

private static final String NAV_ITEM_ID = "nav_index";


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


    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    toolbar.setTitle("E-care");
    setSupportActionBar(toolbar);

    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    NavigationView view = (NavigationView) findViewById(R.id.navigation_view);
    view.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            Toast.makeText(Case_history_review.this, menuItem.getItemId() + " pressed", Toast.LENGTH_LONG).show();
            Log.d(R.id.nav_1+"", menuItem.getItemId() + " ");
            switch (menuItem.getItemId())
            {
                case R.id.nav_1:

                    break;
                case R.id.nav_2:
                    Intent intent = new Intent();
                    intent.setClass(Case_history_review.this,PatientReport.class);
                    //intent .putExtra("name", "Hello B Activity");
                    startActivity(intent);
                    break;
                case R.id.nav_3:
                    break;
                case R.id.nav_4:
                    break;
                case R.id.nav_5:
                    break;
                case R.id.nav_6:
                    break;

            }
            menuItem.setChecked(true);
            drawerLayout.closeDrawers();
            return true;
        }
    });

    ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle( this, drawerLayout, toolbar, R.string.drawer_open , R.string.drawer_close){
        @Override
        public void onDrawerClosed(View drawerView) {
            super .onDrawerClosed(drawerView);
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            super .onDrawerOpened(drawerView);
        }
    };

    drawerLayout.setDrawerListener(actionBarDrawerToggle);
    actionBarDrawerToggle.syncState();

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    .setAction("Action", null).show();
        }
    });
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_case_history_review, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

private void navigateTo(MenuItem menuItem){

    navItemId = menuItem.getItemId();
    menuItem.setChecked(true);
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    //outState.putInt(NAV_ITEM_ID, navItemId);
}




 }

这是我的第二页，所以我想在第二行显示选中的导航。 Case_history_review.java意图到patient_report.java 然而，在点击按钮并打算到这个页面后，导航抽屉在第一行检查，我无法解决它。请给我一些帮助。谢谢。

Answer 1

您正在使用两项活动来展示其独立的NavigationDrawer。理想情况下，您为Fragment中的每个NavigationItem显示展示Drawer。因此，在您的情况下，每次移动到新Drawer时都会重新创建Activity。

在onCreate的{{1}}添加此行

PatientReport.java

创建

navigationView.getMenu().getItem(1).setChecked(true);

后

。

意图后导航抽屉检查错误

1 个答案: