隐藏状态栏时如何强制windowSoftInputMode调整大小
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【中文标题】隐藏状态栏时如何强制windowSoftInputMode调整大小【英文标题】:How to force windowSoftInputMode adjustResize when statusBar is hidden 【发布时间】:2019-02-22 23:58:02 【问题描述】:我一直在努力让它发挥作用。只要我保持状态栏可见,该应用程序就可以很好地调整大小。根据这个post 这是一个android bug,但问题已关闭但未解决。
从我读到的所有内容来看,玩 Insets 应该可以解决问题,但我无法让它发挥作用。不知道是否应该走这条路。
在post 之后,我将以下代码添加到 OnCreate。
ViewCompat.setOnApplyWindowInsetsListener(getWindow().getDecorView().getRootView(), new OnApplyWindowInsetsListener()
@Override
public WindowInsetsCompat onApplyWindowInsets(View view, WindowInsetsCompat insets)
((ViewGroup.MarginLayoutParams) view.getLayoutParams()).topMargin =
insets.getSystemWindowInsetTop();
return insets.consumeSystemWindowInsets();
);
抛出异常:
java.lang.ClassCastException: android.view.WindowManager$LayoutParams 无法转换为 android.view.ViewGroup$MarginLayoutParams
帖子还在继续,但我被困在这里,怀疑我是否走对了路。
如果有人想尝试,请查看我正在使用的测试代码。
在通过将<item name="android:windowFullscreen">true</item>
添加到 AppTheme 来删除状态栏之前运行良好。
AndroidManifest.xml:
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity"
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
activity_mail.xml:
<!-- this control should be position static -->
<TextView
android:layout_
android:layout_
android:background="@color/colorPrimaryDark"
android:text="static window at top"
android:gravity="center"
/>
<!-- the resizable view -->
<android.support.v7.widget.RecyclerView
android:id="@+id/my_list"
android:layout_
android:layout_
android:layout_weight="1"
android:transcriptMode="normal">
</android.support.v7.widget.RecyclerView>
<!-- use this EditText box to call softKeyboard-->
<android.support.v7.widget.AppCompatEditText
android:id="@+id/cv_bottom_bar_edit"
style="@style/Widget.AppCompat.AutoCompleteTextView"
android:layout_
android:layout_
android:textSize="18sp"
android:background="@color/colorPrimaryDark"
android:gravity="center"
/>
row.xml:
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_
android:layout_
android:background="#F06060"
android:layout_margin="30dp"
android:padding="5dp"
android:textSize="25sp"
android:gravity="center"
>
MainActivity.java:
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecyclerView = findViewById(R.id.my_list);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
String[] myDataset = new String[]"1", "2", "3","4","5","6","7","8","9";
mAdapter = new MyAdapter(myDataset);
mRecyclerView.setAdapter(mAdapter);
更新: 我将 windowFullscreen 属性从清单移动到 AppTheme,因为 Android 没有从清单中读取它。
【问题讨论】:
【参考方案1】:public class AndroidBug5497Workaround extends AppCompatActivity
// For more information, see https://issuetracker.google.com/issues/36911528
// To use this class, simply invoke assistActivity() on an Activity that already has its content view set.
private ViewGroup contentContainer;
private ViewTreeObserver viewTreeObserver;
private Rect contentAreaOfWindowBounds = new Rect();
private LinearLayout.LayoutParams rootViewLayout; //-->change to the view root control type of your view.
private int usableHeightPrevious = 0;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
contentContainer = findViewById(android.R.id.content);
rootViewLayout = (LinearLayout.LayoutParams) contentContainer.getLayoutParams();
@Override
protected void onPause()
super.onPause();
if (viewTreeObserver.isAlive())
viewTreeObserver.removeOnGlobalLayoutListener(listener);
@Override
protected void onResume()
super.onResume();
if (viewTreeObserver == null || !viewTreeObserver.isAlive())
viewTreeObserver = contentContainer.getViewTreeObserver();
viewTreeObserver.addOnGlobalLayoutListener(listener);
@Override
protected void onDestroy()
super.onDestroy();
contentContainer = null;
viewTreeObserver = null;
ViewTreeObserver.OnGlobalLayoutListener listener = new ViewTreeObserver.OnGlobalLayoutListener()
@Override
public void onGlobalLayout()
contentContainer.getWindowVisibleDisplayFrame(contentAreaOfWindowBounds);
int usableHeightNow = contentAreaOfWindowBounds.height();
if (usableHeightNow != usableHeightPrevious)
rootViewLayout.height = usableHeightNow;
contentContainer.layout(contentAreaOfWindowBounds.left, contentAreaOfWindowBounds.top, contentAreaOfWindowBounds.right, contentAreaOfWindowBounds.bottom);
contentContainer.requestLayout();
usableHeightPrevious = usableHeightNow;
;
从facebook/react-native github 上的问题中获得。稍微简化了一个常见的活动。从 api 21 开始适用于纵向和横向,但它的测试并没有比这更多。小心使用。
【讨论】:
【参考方案2】:注意这一行:
((ViewGroup.MarginLayoutParams) view.getLayoutParams()).topMargin =
insets.getSystemWindowInsetTop();//what's the parent of "view"
按照getLayoutParams的说法,你应该知道“view”的父级是什么,例如,如果父级是FrameLayout
,那么这样做:
((FrameLayout.LayoutParams) view.getLayoutParams()).topMargin =
insets.getSystemWindowInsetTop();
如果父级是relativelayout或linearlayout,也像上面一样切换到确定类型。
已编辑:试试这个:
((WindowManager.LayoutParams) view.getLayoutParams()).topMargin =
insets.getSystemWindowInsetTop();
【讨论】:
我都试过了。投射到活动顶部控件 LinearLayout.MarginLayoutParams 仍然会引发错误。 WindowManager 没有属性 MarginLayoutParams。我可能会处理错误的观点。以上是关于隐藏状态栏时如何强制windowSoftInputMode调整大小的主要内容,如果未能解决你的问题,请参考以下文章