android已经将UI操作放入主线程，仍然报错

• Z时代
• 2024-01-10
• 分类：技术分享

在activity里就没问题，到了自定义class里就不行了 ，弹框之后，点 取消按钮 就报错：Only the original thread that created a view hierarchy can touch its views.

package com.juhui.zc;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.os.Debug;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.juhui.zc.util.DebugLogUtil;
import com.juhui.zc.util.UiThread;
import com.meihua.passivelock.fastble.BleManager;
import com.meihua.passivelock.fastble.data.BleDevice;
import java.util.List;
/**
* Created On 2018/7/23.
*/
public class BluetoothListDialog implements View.OnClickListener {
private Dialog dialog;
private Activity activity;
private List<BleDevice> scanResultList;
private BluetoothListAdapter adapter;
private ListView listDevice;
private TextView tvNoData;
private TextView tvTitle;
private TextView tvDisConnect;
private View viewDisConnect;
private TextView tvDismiss;
private BLEClickListener listener;
public BleDevice bleDevice;
//    private Handler lockUiHandler;// 用于操作UI 的
//    private UiThread lockThread;
public void setBleDevice(final BleDevice bleDevice) {
this.bleDevice = bleDevice;
//        tvTitle.setText("已搜索到的设备");
if (bleDevice == null) {
tvDisConnect.setVisibility(View.GONE);
viewDisConnect.setVisibility(View.GONE);
} else {
tvDisConnect.setVisibility(View.VISIBLE);
viewDisConnect.setVisibility(View.VISIBLE);
}
}
public void setList(List<BleDevice> scanResultList1) {
this.scanResultList = scanResultList1;
if (adapter == null) {
adapter = new BluetoothListAdapter(activity);
}
adapter.setListData(scanResultList);
listDevice.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
public interface BLEClickListener {
public void setOnItemClickListener(BleDevice bleDevice);
}
public BluetoothListDialog(Activity activity, BLEClickListener listener1) {
this.listener = listener1;
this.activity = activity;
dialog = new Dialog(activity);
dialog.setCanceledOnTouchOutside(false);
View contentView = LayoutInflater.from(activity).inflate(R.layout.act_bluetooth_list_dialog, null);
dialog.setContentView(contentView);
Window window = dialog.getWindow();
assert window != null;
window.setBackgroundDrawableResource(android.R.color.transparent);
LinearLayout linBackground = window.findViewById(R.id.linBackground);
WindowManager manager = activity.getWindow().getWindowManager();
DisplayMetrics outMetrics = new DisplayMetrics();
manager.getDefaultDisplay().getMetrics(outMetrics);
int width = outMetrics.widthPixels;
ViewGroup.LayoutParams lp = linBackground.getLayoutParams();
lp.width = (int) (width * 0.6);
linBackground.setLayoutParams(lp);
listDevice = window.findViewById(R.id.listDevice);
tvNoData = window.findViewById(R.id.tvNoData);
tvTitle = window.findViewById(R.id.tvTitle);
tvDisConnect = window.findViewById(R.id.tvDisConnect);
viewDisConnect = window.findViewById(R.id.viewDisConnect);
tvDismiss = window.findViewById(R.id.tvDismiss);
tvDismiss.setOnClickListener(this);
tvDisConnect.setOnClickListener(this);
listDevice.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
BleDevice bleDevice = scanResultList.get(i);
listener.setOnItemClickListener(bleDevice);
}
});
//        initThread();
}
public void show() {
if (dialog != null) {
dialog.show();
}
}
public void dismiss() {
DebugLogUtil.getInstance().Debug((Looper.getMainLooper().getThread() == Thread.currentThread()) + "");
if (dialog != null && dialog.isShowing()) {
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
dialog.dismiss();
}
});
}
}
@Override
public void onClick(View view) {
final int i = view.getId();
if (i == R.id.tvDismiss) {
dismiss();
} else if (i == R.id.tvDisConnect) {
if (bleDevice != null) {
BleManager.getInstance().disconnect(bleDevice);
}
dismiss();
}
//        lockThread = new UiThread() {
//            @Override
//            public void run() {
//                super.run();
//                Message a = new Message();
//                Bundle bundle = new Bundle();
//                bundle.putInt("view", i);
//                a.setData(bundle);
//                a.what = 99;
////                lockUiHandler.sendEmptyMessage(i);
//                lockUiHandler.sendMessage(a);
//            }
//        };
//        lockThread.start();
}
}

回答

创建与引用时必须在同一线程，这个地方可能要调整

public BluetoothListDialog(Activity activity, BLEClickListener listener1) {
  ...
  dialog = new Dialog(activity);

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