android演播室按钮不起作用

Button button = findViewById(R.id.button_id);
if (button != null) {
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // 处理点击事件
        }
    });
} else {
    Log.e("ButtonError", "Button not found");
}

Button button = findViewById(R.id.button_id);
button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // 处理点击事件
    }
});

<uses-permission android:name="android.permission.CAMERA" />

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, REQUEST_CODE);
}

Button button = findViewById(R.id.button_id);
button.setEnabled(true);