小编Moh*_*wan的帖子

我刚刚在今天推出Android 5.0时更新了我的库

其中一个更新的文件是android-support-v7.之后我不断收到这些错误

[2014-10-18 01:05:34 - android-support-v7-appcompat] C:\Program Files (x86)\adt-bundle-windows-x86_64-20140702\sdk\extras\android\support\v7\appcompat\res\values-v21\styles_base.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'.
[2014-10-18 01:05:34 - android-support-v7-appcompat] 
[2014-10-18 01:05:34 - android-support-v7-appcompat] C:\Program Files (x86)\adt-bundle-windows-x86_64-20140702\sdk\extras\android\support\v7\appcompat\res\values-v21\styles_base.xml:79: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.CloseMode'.
[2014-10-18 01:05:34 - android-support-v7-appcompat] 
[2014-10-18 01:05:34 - android-support-v7-appcompat] C:\Program Files (x86)\adt-bundle-windows-x86_64-20140702\sdk\extras\android\support\v7\appcompat\res\values-v21\styles_base.xml:83: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.Overflow'.
[2014-10-18 01:05:34 - …

注意0:至少试试这段代码,让我们知道它是否适合你.因为理论上这应该有效,但事实并非如此

注1:此代码中没有错误,如果您处于alpha-7上方的任何Constraint布局上,它就不起作用.但是,我正在使用logcat.

MainActivity.java:

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentManager mFragmentManager = getSupportFragmentManager();
        FragmentTransaction mFragmentTransaction = mFragmentManager.beginTransaction();
        Fragment fragment = new stupid();
        mFragmentTransaction
                .add(R.id.main_activity, fragment, "stupid")
                .addToBackStack("stupid")
                .commit();

    }

}

activity_main.xml中:

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_activity"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary"
    android:clickable="true"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity">

    <TextView
        android:text="Hi 1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:layout_editor_absoluteY="13dp"
        tools:layout_editor_absoluteX="18dp"
        android:id="@+id/textView" />
</android.support.constraint.ConstraintLayout>

Stupid.java:

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import …