以编程方式将transitionName添加到工具栏标题（Android） [英] Programmatically add transitionName to Toolbar Title (Android)

问题描述

是否可以以编程方式将xml属性 transitionName 设置为工具栏标题，然后将其用于动画使用 ActivityOptionsCompat ？

Is it possible to programmatically set the xml property transitionName to a Toolbar title and then use it for an animation using ActivityOptionsCompat?

这就是我声明我的工具栏：

        Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
        myToolbar.setTitle("title");

这是我的xml声明：

<android.support.v7.widget.Toolbar
        android:id="@+id/my_toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/primary_color"
        android:elevation="4dp"
        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
        android:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

为了添加动画，我必须使用以下代码：

In order to add the animation I have to use the following code:

ActivityOptionsCompat options =
ActivityOptionsCompat.makeSceneTransitionAnimation(activity,
    albumCoverImageView,   // The view which starts the transition (Should be myToolbar title)
    transitionName    // The transitionName of the view
    );
ActivityCompat.startActivity(activity, intent, options.toBundle());

如何通过工具栏（ TextView ？） makeSceneTransitionAnimation 函数的标题？

How can I pass the Toolbar (TextView ?) title to the makeSceneTransitionAnimation function?

推荐答案

是的，这是可能的：

扩展 ViewCompat 的类可以调用 setTransitionName（String name）

例如：

myToolbar.setTransitionName("ToolbarTransition");

更新它似乎是您特意尝试分享标题所以我会做如下所示：

UPDATE it seems your specifically trying to share the Title so i would do something like the following:

MainActivity的示例xml：

Example xml for MainActivity:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.divshark.toolbaranimation.MainActivity"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

        <android.support.v7.widget.AppCompatTextView
            android:id="@+id/tv_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="18sp"
            android:textColor="@android:color/white"
            android:text="Activity Title" />
    </android.support.v7.widget.Toolbar>

    <android.support.v7.widget.AppCompatButton
        android:id="@+id/btnNext"
        android:text="Next"
        android:layout_centerInParent="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</RelativeLayout>

然后在您的活动参考中查看该视图：

Then in your Activity reference that view:

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar mToolbar = (Toolbar) findViewById(R.id.toolbar);
        final AppCompatTextView mTextView = (AppCompatTextView) mToolbar.findViewById(R.id.tv_title);

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            mTextView.setTransitionName("SimpleTransition");
        }

        AppCompatButton mBtnNext = (AppCompatButton) findViewById(R.id.btnNext);
        mBtnNext.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Intent secondActivity = new Intent(MainActivity.this, SecondActivity.class);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(MainActivity.this, mTextView, mTextView.getTransitionName());
                    startActivity(secondActivity, options.toBundle());
                } else {
                    startActivity(secondActivity);
                }
            }
        });
    }
}

然后在你的SecondActivity中：

then in your SecondActivity:

public class SecondActivity extends AppCompatActivity {

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

        AppCompatTextView mTextView = (AppCompatTextView) findViewById(R.id.tv_title);
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            mTextView.setTransitionName("SimpleTransition");
        }
    }
}

使用此xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">


    <android.support.v7.widget.AppCompatTextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:layout_centerInParent="true"
        android:textColor="@android:color/black"
        android:text="Activity Title" />
</RelativeLayout>

您可以看到您可以使用 ViewCompat views

as you can see you are allowed to call setTransitionName(String name) programmatically using ViewCompat views

祝你好运和快乐编码！

这篇关于以编程方式将transitionName添加到工具栏标题（Android）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！