在代码隐藏中每次键盘输入后调整ListView (堆栈布局内)的大小

public class MainActivity extends AppCompatActivity {

    private ListView listView;
    private View rootView;

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

        listView = findViewById(R.id.listView);
        rootView = findViewById(R.id.rootView);

        // 监听窗口尺寸变化
        rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                Rect r = new Rect();
                rootView.getWindowVisibleDisplayFrame(r);
                int screenHeight = rootView.getRootView().getHeight();
                int keypadHeight = screenHeight - r.bottom;

                if (keypadHeight > screenHeight * 0.15) { // 0.15 ratio is perhaps enough to determine keypad height.
                    // 软键盘弹出
                    listView.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, screenHeight - keypadHeight));
                } else {
                    // 软键盘隐藏
                    listView.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
                }
            }
        });
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // 移除监听器以避免内存泄漏
        if (rootView.getViewTreeObserver().isAlive()) {
            rootView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
        }
    }
}