為自定義操作欄項設置onClick事件

Question

我在嘗試在Custom ActionBar的項上添加onClick事件時遇到以下異常。當我在ActionBar中單擊searchiconactionbar時，我的應用程序崩潰了。我searchiconactionbar在活動中放置了onClick（）方法。為什么會收到此錯誤？還有其他方法可以為自定義ActionBar項設置onClickListener嗎？

java.lang.IllegalStateException: Could not find a method clickEvent(View) in the activity class android.view.ContextThemeWrapper for onClick handler on view class android.widget.ImageView with id 'searchiconactionbar'
            at android.view.View$1.onClick(View.java:3838)
            at android.view.View.performClick(View.java:4466)
            at android.view.View$PerformClick.run(View.java:18542)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5086)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NoSuchMethodException: clickEvent [class android.view.View]
            at java.lang.Class.getConstructorOrMethod(Class.java:472)
            at java.lang.Class.getMethod(Class.java:857)
            at android.view.View$1.onClick(View.java:3831)
            at android.view.View.performClick(View.java

actionbar_gip

<RelativeLayout
    android:layout_width="wrap_content"

    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:background="@color/tabbackground"

    xmlns:android="http://schemas.android.com/apk/res/android">

    <EditText
        android:id="@+id/actionsearchtext"
        android:layout_width="230dp"
        android:layout_height="wrap_content"
        android:textSize="15dp"
        android:textColor="#000000"
android:visibility="gone"
        android:maxLines="1"
        android:singleLine="true"

        android:padding="7dp"
        android:layout_marginTop="10dp"
        android:layout_marginLeft="10dp"
        android:hint="Search for all GIFs"
        android:textColorHint="#544E4B"
        android:layout_toLeftOf="@+id/usericonlayout"
        android:background="@color/border_gray"
        />
    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:id="@+id/usericonlayout"

        >
        <ImageView
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:id="@+id/searchiconactionbar"
            android:paddingLeft="4dp"
            android:paddingRight="4dp"
            android:layout_centerInParent="true"
            android:onClick="clickEvent"
            android:layout_marginLeft="5dp"
            android:src="@drawable/search"
            />
    </RelativeLayout>

</RelativeLayout>

碼-

        LayoutInflater mInflater2 = LayoutInflater.from(this);
        View mCustomView2 = mInflater.inflate(R.layout.actionbar_gip, null);
  searchtext=(EditText)mCustomView2.findViewById(R.id.actionsearchtext);
        searchIcon=(ImageView)mCustomView2.findViewById(R.id.searchiconactionbar);
          getSupportActionBar().setCustomView(R.layout.actionbar_gip);
   public void clickEvent(View v) {
        if (v.getId() == R.id.searchiconactionbar) {
            if (searchtext.getVisibility() == View.GONE)
                expand(searchtext);
            else
                collapse(searchtext);
        }

    }

Answer 1

更換

getSupportActionBar().setCustomView(R.layout.actionbar_gip);

通過

 getSupportActionBar().setCustomView(mCustomView2);

解決了我的問題。

Answer 2

這是一個具有onClick（）功能的示例，該功能用於操作欄中的自定義視圖。

自定義操作欄的布局：

<ImageView
    android:id="@+id/custom_actionbar_back_iv"
    android:layout_width="@dimen/small_margin_ar"
    android:layout_height="@dimen/very_small_margin_ar"
    android:layout_alignParentLeft="true"
    android:layout_centerVertical="true"
    android:src="@drawable/up_navigation"/>

<TextView
    android:id="@+id/custom_actionbar_titleText_tv"
    style="@style/wrapscreen"
    android:layout_centerVertical="true"
    android:layout_toRightOf="@+id/custom_actionbar_back_iv"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:textColor="@color/white"
    android:textSize="@dimen/above_medium_text_size" />

<ImageButton
    android:id="@+id/custom_actionbar_goToArchiveActivity_ib"
    style="@style/wrapscreen"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:layout_marginRight="@dimen/medium_margin"
    android:background="@null"
    android:src="@drawable/ic_action_overflow" />

這里執行。

在onCreate（）方法中定義setupactionBar（）方法

private void setUpActionBar() {
        ActionBar actionBar = getActionBar();
        actionBar.setDisplayShowHomeEnabled(false);
        actionBar.setDisplayShowTitleEnabled(false);

        LayoutInflater layoutInflater = LayoutInflater.from(this);
        View customActionBarView = layoutInflater.inflate(R.layout.custom_actionbar, null);

        // this view is used to show tile
        TextView ActivityTitleTV = (TextView) customActionBarView.findViewById(R.id.custom_actionbar_titleText_tv);
        ActivityTitleTV.setText(R.string.title_text_archive);

        //this view can be used for back navigation
        ImageView backToRecorderIV = (ImageView) customActionBarView.findViewById(R.id.custom_actionbar_back_iv);
        backToRecorderIV.setVisibility(View.VISIBLE);
        backToRecorderIV.setOnClickListener(this);

        //Another view which has up navigation
        ImageButton goToArchiveActivityIB = (ImageButton) customActionBarView.findViewById(R.id.custom_actionbar_goToArchiveActivity_ib);
        goToArchiveActivityIB.setVisibility(View.GONE);

        actionBar.setCustomView(customActionBarView);
        actionBar.setDisplayShowCustomEnabled(true);
    }

    //listener for back navigation
    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.custom_actionbar_back_iv:
                Intent recorder = new Intent(ArchiveActivity.this, RecorderActivity.class);
                startActivity(recorder);
                finish();
                break;
        }
    }

希望這可以幫助...