由于Inflate异常,我在某些设备上崩溃了,我试图给自定义类增加一个名为AutoFitTextureView的东西,我得到这个Logcat消息:
android.view.InflateException: Binary XML file line #34: Binary XML file line #34: Error inflating class com.xscoder.pikky.AutoFitTextureView
我正在使用谷歌的Camera2 Basic代码打开自定义相机。
这是我的square_camera.xml布局的一部分:
<com.xscoder.pikky.AutoFitTextureView
android:id="@+id/texture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/sqcTopView"
android:layout_centerHorizontal="true"
android:background="#333"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</com.xscoder.pikky.AutoFitTextureView>
这是我的AutoFixTextureView类的代码:
public class AutoFitTextureView extends TextureView {
private int mRatioWidth = 0;
private int mRatioHeight = 0;
public AutoFitTextureView(Context context) {
this(context, null);
}
public AutoFitTextureView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public AutoFitTextureView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setAspectRatio(int width, int height) {
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Size cannot be negative.");
}
mRatioWidth = width;
mRatioHeight = height;
requestLayout();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
if (0 == mRatioWidth || 0 == mRatioHeight) {
setMeasuredDimension(width, height);
} else {
if (width < height * mRatioWidth / mRatioHeight) {
setMeasuredDimension(width, width * mRatioHeight / mRatioWidth);
} else {
setMeasuredDimension(height * mRatioWidth / mRatioHeight, height);
}
}
}
}// ./ end
这就是我所说的:
public class SquareCamera extends AppCompatActivity {
private AutoFitTextureView mTextureView;
...
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.square_camera);
mTextureView = findViewById(R.id.texture);
我真的无法弄清楚出了什么问题,因为如果我在真正的华为Cam 21上使用Android 6.0或者使用Android 5.1的Quilive运行我的应用程序,该应用程序根本不会崩溃,但在其他设备上,以及Android 8.0模拟器,它与该错误崩溃。
通过简单地编辑我的square_camera.xml文件来修复该错误,如下所示:
<com.xscoder.pikky.AutoFitTextureView
android:id="@+id/texture"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/sqcTopView"
>
</com.xscoder.pikky.AutoFitTextureView>
似乎有些Android设备没有处理自定义TextureView的附加属性,所以最好用Java编程设置:)