微信支付8.0系统bug修复

app/src/main/java/com/electric/chargingpile/wxapi/WXPayEntryActivity.java

import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.TypedArray;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import com.tencent.mm.sdk.openapi.IWXAPIEventHandler;
import com.tencent.mm.sdk.openapi.WXAPIFactory;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
    private static final String TAG = "MicroMsg.SDKSample.WXPayEntryActivity";
    @Override
    public void onCreate(Bundle savedInstanceState) {
        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.O && isTranslucentOrFloating()) {
            boolean result = fixOrientation();
            Log.i(TAG,"onCreate fixOrientation when Oreo, result = " + result);
        }
        super.onCreate(savedInstanceState);
        setContentView(R.layout.pay_result);
        api.handleIntent(getIntent(), this);
    }
    private boolean isTranslucentOrFloating() {
        boolean isTranslucentOrFloating = false;
        try {
            int [] styleableRes = (int[]) Class.forName("com.android.internal.R$styleable").getField("Window").get(null);
            final TypedArray ta = obtainStyledAttributes(styleableRes);
            Method m = ActivityInfo.class.getMethod("isTranslucentOrFloating", TypedArray.class);
            m.setAccessible(true);
            isTranslucentOrFloating = (boolean)m.invoke(null, ta);
            m.setAccessible(false);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return isTranslucentOrFloating;
    }
    // 修复8.0微信支付问题
    // https://blog.csdn.net/starry_eve/article/details/82777160
    private boolean fixOrientation() {
        try {
            Field field = Activity.class.getDeclaredField("mActivityInfo");
            field.setAccessible(true);
            ActivityInfo o = (ActivityInfo)field.get(this);
            o.screenOrientation = -1;
            field.setAccessible(false);
            return true;
        }catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }
    @Override
    public void setRequestedOrientation(int requestedOrientation) {
        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.O && isTranslucentOrFloating()) {
            Log.i(TAG, "avoid calling setRequestedOrientation when Oreo.");
            return;
        }
        super.setRequestedOrientation(requestedOrientation);
    }
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);