安卓工具栏按钮点击事件功能

Question

我已经在Toolbar中创建了设置按钮，现在我需要在单击设置按钮时将屏幕导航到设置屏幕

<?xml version="1.0" encoding="utf-8"?> 
<menu xmlns:安卓="schemas.安卓.com/apk/res/安卓"; xmlns:app="schemas.安卓.com/apk/res-auto">;
 <item 安卓:id="@+id/action_settings" 
安卓:title="ConfigApp" 
安卓:icon="@drawable/ic_action_name" 
app:showAsAction="ifRoom" /> 
</menu>

Answer 1

您应该重写onCreateOptionsMenu和onOptionsItemSelected方法，并从menuitem中获取特定的id，然后导航到设置屏幕

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

@Override
 public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.action_settings:
                Intent i = new Intent(yourActivity.this, SettingsActivity.class)
                startActivity(i);
                break;
            default:
                return super.onOptionsItemSelected(item);
        }
        return super.onOptionsItemSelected(item);
    }

Answer 2

您可以使用onOptions ItemSelected函数。这个reference将帮助你做到这一点

Answer 3

试试这个：

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

 public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.action_settings:
                //Strar activity here
                break;
            default:
                return super.onOptionsItemSelected(item);
        }
        return super.onOptionsItemSelected(item);
    }